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libvirt/src/libxl/libxl_driver.c
Laine Stump b03d9e9593 conf: add hypervisor agnostic, domain start-time, validation function for NetDef 
<interface> devices (virDomainNetDef) are a bit different from other
types of devices in that their actual type may come from a network (in
the form of a port connection), and that doesn't happen until the
domain is started. This means that any validation of an <interface> at
parse time needs to be a bit liberal in what it accepts - when
type='network', you could think that something is/isn't allowed, but
once the domain is started and a port is created by the configured
network, the opposite might be true.

To solve this problem hypervisor drivers need to do an extra
validation step when the domain is being started. I recently (commit
3cff23f7, libvirt 5.7.0) added a function to peform such validation
for all interfaces to the QEMU driver -
qemuDomainValidateActualNetDef() - but while that function is a good
single point to call for the multiple places that need to "start" an
interface (domain startup, device hotplug, device update), it can't be
called by the other hypervisor drivers, since 1) it's in the QEMU
driver, and 2) it contains some checks specific to QEMU. For
validation that applies to network devices on *all* hypervisors, we
need yet another interface validation function that can be called by
any hypervisor driver (not just QEMU) right after its network port has
been created during domain startup or hotplug. This patch adds that
function - virDomainActualNetDefValidate(), in the conf directory,
and calls it in appropriate places in the QEMU, lxc, and libxl
drivers.

This new function is the place to put all network device validation
that 1) is hypervisor agnostic, and 2) can't be done until we know the
"actual type" of an interface.

There is no framework for validation at domain startup as there is for
post-parse validation, but I don't want to create a whole elaborate
system that will only be used by one type of device. For that reason,
I just made a single function that should be called directly from the
hypervisors, when they are initializing interfaces to start a domain,
right after conditionally allocating the network port (and regardless
of whether or not that was actually needed). In the case of the QEMU
driver, qemuDomainValidateActualNetDef() is already called in all the
appropriate places, so we can just call the new function from
there. In the case of the other hypervisors, we search for
virDomainNetAllocateActualDevice() (which is the hypervisor-agnostic
function that calls virNetworkPortCreateXML()), and add the call to our
new function right after that.

The new function itself could be plunked down into many places in the
code, but we already have 3 validation functions for network devices
in 2 different places (not counting any basic validation done in
virDomainNetDefParseXML() itself):

1) post-parse hypervisor-agnostic
   (virDomainNetDefValidate() - domain_conf.c:6145)
2) post-parse hypervisor-specific
   (qemuDomainDeviceDefValidateNetwork() - qemu_domain.c:5498)
3) domain-start hypervisor-specific
   (qemuDomainValidateActualNetDef() - qemu_domain.c:5390)

I placed (3) right next to (2) when I added it, specifically to avoid
spreading validation all over the code. For the same reason, I decided
to put this new function right next to (1) - this way if someone needs
to add validation specific to qemu, they go to one location, and if
they need to add validation applying to everyone, they go to the
other. It looks a bit strange to have a public function in between a
bunch of statics, but I think it's better than the alternative of
further fragmentation. (I'm open to other ideas though, of course.)

Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
2019-11-25 15:30:05 -05:00

6715 lines
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/*
* libxl_driver.c: core driver methods for managing libxenlight domains
*
* Copyright (C) 2006-2015 Red Hat, Inc.
* Copyright (C) 2011-2015 SUSE LINUX Products GmbH, Nuernberg, Germany.
* Copyright (C) 2011 Univention GmbH.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <math.h>
#include <libxl.h>
#include <libxl_utils.h>
#include <xenstore.h>
#include <fcntl.h>
#include "internal.h"
#include "virlog.h"
#include "virerror.h"
#include "virconf.h"
#include "datatypes.h"
#include "virfile.h"
#include "viralloc.h"
#include "viruuid.h"
#include "virhook.h"
#include "vircommand.h"
#include "libxl_domain.h"
#include "libxl_driver.h"
#include "libxl_conf.h"
#include "libxl_capabilities.h"
#include "libxl_migration.h"
#include "xen_xm.h"
#include "xen_xl.h"
#include "virtypedparam.h"
#include "viruri.h"
#include "virstring.h"
#include "virsysinfo.h"
#include "viraccessapicheck.h"
#include "viratomic.h"
#include "virhostdev.h"
#include "virpidfile.h"
#include "locking/domain_lock.h"
#include "virnetdevtap.h"
#include "cpu/cpu.h"
#define VIR_FROM_THIS VIR_FROM_LIBXL
VIR_LOG_INIT("libxl.libxl_driver");
#define LIBXL_DOM_REQ_POWEROFF 0
#define LIBXL_DOM_REQ_REBOOT 1
#define LIBXL_DOM_REQ_SUSPEND 2
#define LIBXL_DOM_REQ_CRASH 3
#define LIBXL_DOM_REQ_HALT 4
#define LIBXL_NB_TOTAL_CPU_STAT_PARAM 1
#define LIBXL_NB_TOTAL_BLK_STAT_PARAM 6
#define HYPERVISOR_CAPABILITIES "/proc/xen/capabilities"
#define HYPERVISOR_XENSTORED "/dev/xen/xenstored"
/* Number of Xen scheduler parameters */
#define XEN_SCHED_CREDIT_NPARAM 2
#define LIBXL_CHECK_DOM0_GOTO(name, label) \
do { \
if (STREQ_NULLABLE(name, "Domain-0")) { \
virReportError(VIR_ERR_OPERATION_INVALID, "%s", \
_("Domain-0 does not support requested operation")); \
goto label; \
} \
} while (0)
static libxlDriverPrivatePtr libxl_driver;
/* Object used to store info related to libxl event registrations */
typedef struct _libxlOSEventHookInfo libxlOSEventHookInfo;
typedef libxlOSEventHookInfo *libxlOSEventHookInfoPtr;
struct _libxlOSEventHookInfo {
libxl_ctx *ctx;
void *xl_priv;
int id;
};
/* Object used to store disk statistics across multiple xen backends */
typedef struct _libxlBlockStats libxlBlockStats;
typedef libxlBlockStats *libxlBlockStatsPtr;
struct _libxlBlockStats {
long long rd_req;
long long rd_bytes;
long long wr_req;
long long wr_bytes;
long long f_req;
char *backend;
union {
struct {
long long ds_req;
long long oo_req;
} vbd;
} u;
};
/* Function declarations */
static int
libxlDomainManagedSaveLoad(virDomainObjPtr vm,
void *opaque);
/* Function definitions */
static void
libxlOSEventHookInfoFree(void *obj)
{
VIR_FREE(obj);
}
static void
libxlFDEventCallback(int watch G_GNUC_UNUSED,
int fd,
int vir_events,
void *fd_info)
{
libxlOSEventHookInfoPtr info = fd_info;
int events = 0;
if (vir_events & VIR_EVENT_HANDLE_READABLE)
events |= POLLIN;
if (vir_events & VIR_EVENT_HANDLE_WRITABLE)
events |= POLLOUT;
if (vir_events & VIR_EVENT_HANDLE_ERROR)
events |= POLLERR;
if (vir_events & VIR_EVENT_HANDLE_HANGUP)
events |= POLLHUP;
libxl_osevent_occurred_fd(info->ctx, info->xl_priv, fd, 0, events);
}
static int
libxlFDRegisterEventHook(void *priv,
int fd,
void **hndp,
short events,
void *xl_priv)
{
int vir_events = VIR_EVENT_HANDLE_ERROR;
libxlOSEventHookInfoPtr info;
if (VIR_ALLOC(info) < 0)
return -1;
info->ctx = priv;
info->xl_priv = xl_priv;
if (events & POLLIN)
vir_events |= VIR_EVENT_HANDLE_READABLE;
if (events & POLLOUT)
vir_events |= VIR_EVENT_HANDLE_WRITABLE;
info->id = virEventAddHandle(fd, vir_events, libxlFDEventCallback,
info, libxlOSEventHookInfoFree);
if (info->id < 0) {
VIR_FREE(info);
return -1;
}
*hndp = info;
return 0;
}
static int
libxlFDModifyEventHook(void *priv G_GNUC_UNUSED,
int fd G_GNUC_UNUSED,
void **hndp,
short events)
{
libxlOSEventHookInfoPtr info = *hndp;
int vir_events = VIR_EVENT_HANDLE_ERROR;
if (events & POLLIN)
vir_events |= VIR_EVENT_HANDLE_READABLE;
if (events & POLLOUT)
vir_events |= VIR_EVENT_HANDLE_WRITABLE;
virEventUpdateHandle(info->id, vir_events);
return 0;
}
static void
libxlFDDeregisterEventHook(void *priv G_GNUC_UNUSED,
int fd G_GNUC_UNUSED,
void *hnd)
{
libxlOSEventHookInfoPtr info = hnd;
virEventRemoveHandle(info->id);
}
static void
libxlTimerCallback(int timer G_GNUC_UNUSED, void *timer_info)
{
libxlOSEventHookInfoPtr info = timer_info;
/*
* libxl expects the event to be deregistered when calling
* libxl_osevent_occurred_timeout, but we dont want the event info
* destroyed. Disable the timeout and only remove it after returning
* from libxl.
*/
virEventUpdateTimeout(info->id, -1);
libxl_osevent_occurred_timeout(info->ctx, info->xl_priv);
virEventRemoveTimeout(info->id);
}
static int
libxlTimeoutRegisterEventHook(void *priv,
void **hndp,
struct timeval abs_t,
void *xl_priv)
{
libxlOSEventHookInfoPtr info;
struct timeval now;
struct timeval res;
static struct timeval zero;
int timeout;
if (VIR_ALLOC(info) < 0)
return -1;
info->ctx = priv;
info->xl_priv = xl_priv;
gettimeofday(&now, NULL);
timersub(&abs_t, &now, &res);
/* Ensure timeout is not overflowed */
if (timercmp(&res, &zero, <)) {
timeout = 0;
} else if (res.tv_sec > INT_MAX / 1000) {
timeout = INT_MAX;
} else {
timeout = res.tv_sec * 1000 + (res.tv_usec + 999) / 1000;
}
info->id = virEventAddTimeout(timeout, libxlTimerCallback,
info, libxlOSEventHookInfoFree);
if (info->id < 0) {
VIR_FREE(info);
return -1;
}
*hndp = info;
return 0;
}
/*
* Note: There are two changes wrt timeouts starting with xen-unstable
* changeset 26469:
*
* 1. Timeout modify callbacks will only be invoked with an abs_t of {0,0},
* i.e. make the timeout fire immediately. Prior to this commit, timeout
* modify callbacks were never invoked.
*
* 2. Timeout deregister hooks will no longer be called.
*/
static int
libxlTimeoutModifyEventHook(void *priv G_GNUC_UNUSED,
void **hndp,
struct timeval abs_t G_GNUC_UNUSED)
{
libxlOSEventHookInfoPtr info = *hndp;
/* Make the timeout fire */
virEventUpdateTimeout(info->id, 0);
return 0;
}
static void
libxlTimeoutDeregisterEventHook(void *priv G_GNUC_UNUSED,
void *hnd)
{
libxlOSEventHookInfoPtr info = hnd;
virEventRemoveTimeout(info->id);
}
static virDomainObjPtr
libxlDomObjFromDomain(virDomainPtr dom)
{
virDomainObjPtr vm;
libxlDriverPrivatePtr driver = dom->conn->privateData;
char uuidstr[VIR_UUID_STRING_BUFLEN];
vm = virDomainObjListFindByUUID(driver->domains, dom->uuid);
if (!vm) {
virUUIDFormat(dom->uuid, uuidstr);
virReportError(VIR_ERR_NO_DOMAIN,
_("no domain with matching uuid '%s' (%s)"),
uuidstr, dom->name);
return NULL;
}
return vm;
}
static int
libxlAutostartDomain(virDomainObjPtr vm,
void *opaque)
{
libxlDriverPrivatePtr driver = opaque;
int ret = -1;
virObjectRef(vm);
virObjectLock(vm);
virResetLastError();
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
goto cleanup;
if (vm->autostart && !virDomainObjIsActive(vm) &&
libxlDomainStartNew(driver, vm, false) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to autostart VM '%s': %s"),
vm->def->name, virGetLastErrorMessage());
goto endjob;
}
ret = 0;
endjob:
libxlDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static void
libxlReconnectNotifyNets(virDomainDefPtr def)
{
size_t i;
virConnectPtr conn = NULL;
for (i = 0; i < def->nnets; i++) {
virDomainNetDefPtr net = def->nets[i];
/* keep others from trying to use the macvtap device name, but
* don't return error if this happens, since that causes the
* domain to be unceremoniously killed, which would be *very*
* impolite.
*/
if (virDomainNetGetActualType(net) == VIR_DOMAIN_NET_TYPE_DIRECT)
ignore_value(virNetDevMacVLanReserveName(net->ifname, false));
if (net->type == VIR_DOMAIN_NET_TYPE_NETWORK) {
if (!conn && !(conn = virGetConnectNetwork()))
continue;
virDomainNetNotifyActualDevice(conn, def, net);
}
}
virObjectUnref(conn);
}
/*
* Reconnect to running domains that were previously started/created
* with libxenlight driver.
*/
static int
libxlReconnectDomain(virDomainObjPtr vm,
void *opaque)
{
libxlDriverPrivatePtr driver = opaque;
libxlDomainObjPrivatePtr priv = vm->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
int rc;
libxl_dominfo d_info;
int len;
uint8_t *data = NULL;
virHostdevManagerPtr hostdev_mgr = driver->hostdevMgr;
unsigned int hostdev_flags = VIR_HOSTDEV_SP_PCI;
int ret = -1;
#ifdef LIBXL_HAVE_PVUSB
hostdev_flags |= VIR_HOSTDEV_SP_USB;
#endif
virObjectRef(vm);
virObjectLock(vm);
libxl_dominfo_init(&d_info);
/* Does domain still exist? */
rc = libxl_domain_info(cfg->ctx, &d_info, vm->def->id);
if (rc == ERROR_INVAL) {
goto error;
} else if (rc != 0) {
VIR_DEBUG("libxl_domain_info failed (code %d), ignoring domain %d",
rc, vm->def->id);
goto error;
}
/* Is this a domain that was under libvirt control? */
if (libxl_userdata_retrieve(cfg->ctx, vm->def->id,
"libvirt-xml", &data, &len)) {
VIR_DEBUG("libxl_userdata_retrieve failed, ignoring domain %d", vm->def->id);
goto error;
}
/* Update domid in case it changed (e.g. reboot) while we were gone? */
vm->def->id = d_info.domid;
libxlLoggerOpenFile(cfg->logger, vm->def->id, vm->def->name, NULL);
/* Update hostdev state */
if (virHostdevUpdateActiveDomainDevices(hostdev_mgr, LIBXL_DRIVER_NAME,
vm->def, hostdev_flags) < 0)
goto error;
if (d_info.shutdown &&
d_info.shutdown_reason == LIBXL_SHUTDOWN_REASON_SUSPEND)
virDomainObjSetState(vm, VIR_DOMAIN_PMSUSPENDED,
VIR_DOMAIN_PMSUSPENDED_UNKNOWN);
else if (d_info.paused)
virDomainObjSetState(vm, VIR_DOMAIN_PAUSED,
VIR_DOMAIN_PAUSED_UNKNOWN);
else
virDomainObjSetState(vm, VIR_DOMAIN_RUNNING,
VIR_DOMAIN_RUNNING_UNKNOWN);
if (virAtomicIntInc(&driver->nactive) == 1 && driver->inhibitCallback)
driver->inhibitCallback(true, driver->inhibitOpaque);
/* Enable domain death events */
libxl_evenable_domain_death(cfg->ctx, vm->def->id, 0, &priv->deathW);
libxlReconnectNotifyNets(vm->def);
if (virDomainSaveStatus(driver->xmlopt, cfg->stateDir, vm, cfg->caps) < 0)
VIR_WARN("Cannot update XML for running Xen guest %s", vm->def->name);
/* now that we know it's reconnected call the hook if present */
if (virHookPresent(VIR_HOOK_DRIVER_LIBXL) &&
STRNEQ("Domain-0", vm->def->name)) {
char *xml = virDomainDefFormat(vm->def, cfg->caps, 0);
int hookret;
/* we can't stop the operation even if the script raised an error */
hookret = virHookCall(VIR_HOOK_DRIVER_LIBXL, vm->def->name,
VIR_HOOK_LIBXL_OP_RECONNECT, VIR_HOOK_SUBOP_BEGIN,
NULL, xml, NULL);
VIR_FREE(xml);
if (hookret < 0) {
/* Stop the domain if the hook failed */
if (virDomainObjIsActive(vm)) {
libxlDomainDestroyInternal(driver, vm);
virDomainObjSetState(vm, VIR_DOMAIN_SHUTOFF, VIR_DOMAIN_SHUTOFF_FAILED);
}
goto error;
}
}
ret = 0;
cleanup:
libxl_dominfo_dispose(&d_info);
virObjectUnlock(vm);
virObjectUnref(vm);
virObjectUnref(cfg);
return ret;
error:
libxlDomainCleanup(driver, vm);
if (!vm->persistent)
virDomainObjListRemoveLocked(driver->domains, vm);
goto cleanup;
}
static void
libxlReconnectDomains(libxlDriverPrivatePtr driver)
{
virDomainObjListForEach(driver->domains, true, libxlReconnectDomain, driver);
}
static int
libxlStateCleanup(void)
{
if (!libxl_driver)
return -1;
virObjectUnref(libxl_driver->hostdevMgr);
virObjectUnref(libxl_driver->xmlopt);
virObjectUnref(libxl_driver->domains);
virPortAllocatorRangeFree(libxl_driver->reservedGraphicsPorts);
virPortAllocatorRangeFree(libxl_driver->migrationPorts);
virLockManagerPluginUnref(libxl_driver->lockManager);
virObjectUnref(libxl_driver->domainEventState);
virSysinfoDefFree(libxl_driver->hostsysinfo);
if (libxl_driver->lockFD != -1)
virPidFileRelease(libxl_driver->config->stateDir, "driver", libxl_driver->lockFD);
virObjectUnref(libxl_driver->config);
virMutexDestroy(&libxl_driver->lock);
VIR_FREE(libxl_driver);
return 0;
}
static bool
libxlDriverShouldLoad(bool privileged)
{
/* Don't load if non-root */
if (!privileged) {
VIR_INFO("Not running privileged, disabling libxenlight driver");
return false;
}
if (virFileExists(HYPERVISOR_CAPABILITIES)) {
int status;
char *output = NULL;
/*
* Don't load if not running on a Xen control domain (dom0). It is not
* sufficient to check for the file to exist as any guest can mount
* xenfs to /proc/xen.
*/
status = virFileReadAll(HYPERVISOR_CAPABILITIES, 10, &output);
if (status >= 0)
status = strncmp(output, "control_d", 9);
VIR_FREE(output);
if (status) {
VIR_INFO("No Xen capabilities detected, probably not running "
"in a Xen Dom0. Disabling libxenlight driver");
return false;
}
} else if (!virFileExists(HYPERVISOR_XENSTORED)) {
VIR_INFO("Disabling driver as neither " HYPERVISOR_CAPABILITIES
" nor " HYPERVISOR_XENSTORED " exist");
return false;
}
return true;
}
/* Callbacks wrapping libvirt's event loop interface */
static const libxl_osevent_hooks libxl_osevent_callbacks = {
.fd_register = libxlFDRegisterEventHook,
.fd_modify = libxlFDModifyEventHook,
.fd_deregister = libxlFDDeregisterEventHook,
.timeout_register = libxlTimeoutRegisterEventHook,
.timeout_modify = libxlTimeoutModifyEventHook,
.timeout_deregister = libxlTimeoutDeregisterEventHook,
};
static const libxl_childproc_hooks libxl_child_hooks = {
#ifdef LIBXL_HAVE_SIGCHLD_OWNER_SELECTIVE_REAP
.chldowner = libxl_sigchld_owner_libxl_always_selective_reap,
#else
.chldowner = libxl_sigchld_owner_libxl,
#endif
};
const struct libxl_event_hooks ev_hooks = {
.event_occurs_mask = LIBXL_EVENTMASK_ALL,
.event_occurs = libxlDomainEventHandler,
.disaster = NULL,
};
static int
libxlAddDom0(libxlDriverPrivatePtr driver)
{
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainDefPtr def = NULL;
virDomainObjPtr vm = NULL;
libxl_dominfo d_info;
unsigned long long maxmem;
int ret = -1;
libxl_dominfo_init(&d_info);
/* Ensure we have a dom0 */
if (libxl_domain_info(cfg->ctx, &d_info, 0) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("unable to get Domain-0 information from libxenlight"));
goto cleanup;
}
if (!(def = virDomainDefNew()))
goto cleanup;
def->id = 0;
def->virtType = VIR_DOMAIN_VIRT_XEN;
def->name = g_strdup("Domain-0");
def->os.type = VIR_DOMAIN_OSTYPE_XEN;
if (virUUIDParse("00000000-0000-0000-0000-000000000000", def->uuid) < 0)
goto cleanup;
if (!(vm = virDomainObjListAdd(driver->domains, def,
driver->xmlopt,
0,
NULL)))
goto cleanup;
def = NULL;
vm->persistent = 1;
virDomainObjSetState(vm, VIR_DOMAIN_RUNNING, VIR_DOMAIN_RUNNING_BOOTED);
if (virDomainDefSetVcpusMax(vm->def, d_info.vcpu_max_id + 1, driver->xmlopt))
goto cleanup;
if (virDomainDefSetVcpus(vm->def, d_info.vcpu_online) < 0)
goto cleanup;
vm->def->mem.cur_balloon = d_info.current_memkb;
if (libxlDriverGetDom0MaxmemConf(cfg, &maxmem) < 0)
maxmem = d_info.current_memkb;
virDomainDefSetMemoryTotal(vm->def, maxmem);
ret = 0;
cleanup:
libxl_dominfo_dispose(&d_info);
virDomainDefFree(def);
virDomainObjEndAPI(&vm);
virObjectUnref(cfg);
return ret;
}
static int
libxlStateInitialize(bool privileged,
virStateInhibitCallback callback G_GNUC_UNUSED,
void *opaque G_GNUC_UNUSED)
{
libxlDriverConfigPtr cfg;
char *driverConf = NULL;
char ebuf[1024];
bool autostart = true;
if (!libxlDriverShouldLoad(privileged))
return VIR_DRV_STATE_INIT_SKIPPED;
if (VIR_ALLOC(libxl_driver) < 0)
return VIR_DRV_STATE_INIT_ERROR;
libxl_driver->lockFD = -1;
if (virMutexInit(&libxl_driver->lock) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("cannot initialize mutex"));
VIR_FREE(libxl_driver);
return VIR_DRV_STATE_INIT_ERROR;
}
/* Allocate bitmap for vnc port reservation */
if (!(libxl_driver->reservedGraphicsPorts =
virPortAllocatorRangeNew(_("VNC"),
LIBXL_VNC_PORT_MIN,
LIBXL_VNC_PORT_MAX)))
goto error;
/* Allocate bitmap for migration port reservation */
if (!(libxl_driver->migrationPorts =
virPortAllocatorRangeNew(_("migration"),
LIBXL_MIGRATION_PORT_MIN,
LIBXL_MIGRATION_PORT_MAX)))
goto error;
if (!(libxl_driver->domains = virDomainObjListNew()))
goto error;
if (!(libxl_driver->hostdevMgr = virHostdevManagerGetDefault()))
goto error;
if (!(cfg = libxlDriverConfigNew()))
goto error;
driverConf = g_strdup_printf("%s/libxl.conf", cfg->configBaseDir);
if (libxlDriverConfigLoadFile(cfg, driverConf) < 0)
goto error;
VIR_FREE(driverConf);
/* Register the callbacks providing access to libvirt's event loop */
libxl_osevent_register_hooks(cfg->ctx, &libxl_osevent_callbacks, cfg->ctx);
/* Setup child process handling. See $xen-src/tools/libxl/libxl_event.h */
libxl_childproc_setmode(cfg->ctx, &libxl_child_hooks, cfg->ctx);
/* Register callback to handle domain events */
libxl_event_register_callbacks(cfg->ctx, &ev_hooks, libxl_driver);
libxl_driver->config = cfg;
if (virFileMakePath(cfg->stateDir) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("failed to create state dir '%s': %s"),
cfg->stateDir,
virStrerror(errno, ebuf, sizeof(ebuf)));
goto error;
}
if (virFileMakePath(cfg->libDir) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("failed to create lib dir '%s': %s"),
cfg->libDir,
virStrerror(errno, ebuf, sizeof(ebuf)));
goto error;
}
if (virFileMakePath(cfg->saveDir) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("failed to create save dir '%s': %s"),
cfg->saveDir,
virStrerror(errno, ebuf, sizeof(ebuf)));
goto error;
}
if (virFileMakePath(cfg->autoDumpDir) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("failed to create dump dir '%s': %s"),
cfg->autoDumpDir,
virStrerror(errno, ebuf, sizeof(ebuf)));
goto error;
}
if (virFileMakePath(cfg->channelDir) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("failed to create channel dir '%s': %s"),
cfg->channelDir,
virStrerror(errno, ebuf, sizeof(ebuf)));
goto error;
}
if ((libxl_driver->lockFD =
virPidFileAcquire(cfg->stateDir, "driver", false, getpid())) < 0)
goto error;
if (!(libxl_driver->lockManager =
virLockManagerPluginNew(cfg->lockManagerName ?
cfg->lockManagerName : "nop",
"libxl",
cfg->configBaseDir,
0)))
goto error;
/* read the host sysinfo */
libxl_driver->hostsysinfo = virSysinfoRead();
libxl_driver->domainEventState = virObjectEventStateNew();
if (!libxl_driver->domainEventState)
goto error;
if ((cfg->caps = libxlMakeCapabilities(cfg->ctx)) == NULL) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("cannot create capabilities for libxenlight"));
goto error;
}
if (!(libxl_driver->xmlopt = libxlCreateXMLConf()))
goto error;
/* Add Domain-0 */
if (libxlAddDom0(libxl_driver) < 0)
goto error;
/* Load running domains first. */
if (virDomainObjListLoadAllConfigs(libxl_driver->domains,
cfg->stateDir,
cfg->autostartDir,
true,
cfg->caps,
libxl_driver->xmlopt,
NULL, NULL) < 0)
goto error;
libxlReconnectDomains(libxl_driver);
/* Then inactive persistent configs */
if (virDomainObjListLoadAllConfigs(libxl_driver->domains,
cfg->configDir,
cfg->autostartDir,
false,
cfg->caps,
libxl_driver->xmlopt,
NULL, NULL) < 0)
goto error;
if (virDriverShouldAutostart(cfg->stateDir, &autostart) < 0)
goto error;
if (autostart) {
virDomainObjListForEach(libxl_driver->domains, false,
libxlAutostartDomain,
libxl_driver);
}
virDomainObjListForEach(libxl_driver->domains, false,
libxlDomainManagedSaveLoad,
libxl_driver);
return VIR_DRV_STATE_INIT_COMPLETE;
error:
VIR_FREE(driverConf);
libxlStateCleanup();
return VIR_DRV_STATE_INIT_ERROR;
}
static int
libxlStateReload(void)
{
libxlDriverConfigPtr cfg;
if (!libxl_driver)
return 0;
cfg = libxlDriverConfigGet(libxl_driver);
virDomainObjListLoadAllConfigs(libxl_driver->domains,
cfg->configDir,
cfg->autostartDir,
true,
cfg->caps,
libxl_driver->xmlopt,
NULL, libxl_driver);
virDomainObjListForEach(libxl_driver->domains, false,
libxlAutostartDomain,
libxl_driver);
virObjectUnref(cfg);
return 0;
}
static int
libxlConnectURIProbe(char **uri)
{
if (libxl_driver == NULL)
return 0;
*uri = g_strdup("xen:///system");
return 1;
}
static virDrvOpenStatus
libxlConnectOpen(virConnectPtr conn,
virConnectAuthPtr auth G_GNUC_UNUSED,
virConfPtr conf G_GNUC_UNUSED,
unsigned int flags)
{
virCheckFlags(VIR_CONNECT_RO, VIR_DRV_OPEN_ERROR);
/* Error if xen or libxl scheme specified but driver not started. */
if (libxl_driver == NULL) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("libxenlight state driver is not active"));
return VIR_DRV_OPEN_ERROR;
}
/* /session isn't supported in libxenlight */
if (STRNEQ(conn->uri->path, "") &&
STRNEQ(conn->uri->path, "/") &&
STRNEQ(conn->uri->path, "/system")) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unexpected Xen URI path '%s', try xen:///system"),
conn->uri->path);
return VIR_DRV_OPEN_ERROR;
}
if (virConnectOpenEnsureACL(conn) < 0)
return VIR_DRV_OPEN_ERROR;
conn->privateData = libxl_driver;
return VIR_DRV_OPEN_SUCCESS;
};
static int
libxlConnectClose(virConnectPtr conn G_GNUC_UNUSED)
{
conn->privateData = NULL;
return 0;
}
static const char *
libxlConnectGetType(virConnectPtr conn)
{
if (virConnectGetTypeEnsureACL(conn) < 0)
return NULL;
return "Xen";
}
static int
libxlConnectGetVersion(virConnectPtr conn, unsigned long *version)
{
libxlDriverPrivatePtr driver = conn->privateData;
libxlDriverConfigPtr cfg;
if (virConnectGetVersionEnsureACL(conn) < 0)
return 0;
cfg = libxlDriverConfigGet(driver);
*version = cfg->version;
virObjectUnref(cfg);
return 0;
}
static char *libxlConnectGetHostname(virConnectPtr conn)
{
if (virConnectGetHostnameEnsureACL(conn) < 0)
return NULL;
return virGetHostname();
}
static char *
libxlConnectGetSysinfo(virConnectPtr conn, unsigned int flags)
{
libxlDriverPrivatePtr driver = conn->privateData;
virBuffer buf = VIR_BUFFER_INITIALIZER;
virCheckFlags(0, NULL);
if (virConnectGetSysinfoEnsureACL(conn) < 0)
return NULL;
if (!driver->hostsysinfo) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Host SMBIOS information is not available"));
return NULL;
}
if (virSysinfoFormat(&buf, driver->hostsysinfo) < 0)
return NULL;
return virBufferContentAndReset(&buf);
}
static int
libxlConnectGetMaxVcpus(virConnectPtr conn, const char *type G_GNUC_UNUSED)
{
int ret;
libxlDriverPrivatePtr driver = conn->privateData;
libxlDriverConfigPtr cfg;
if (virConnectGetMaxVcpusEnsureACL(conn) < 0)
return -1;
cfg = libxlDriverConfigGet(driver);
ret = libxl_get_max_cpus(cfg->ctx);
/* On failure, libxl_get_max_cpus() will return ERROR_FAIL from Xen 4.4
* onward, but it ever returning 0 is obviously wrong too (and it is
* what happens, on failure, on Xen 4.3 and earlier). Therefore, a 'less
* or equal' is the catchall we want. */
if (ret <= 0)
ret = -1;
virObjectUnref(cfg);
return ret;
}
static int
libxlNodeGetInfo(virConnectPtr conn, virNodeInfoPtr info)
{
if (virNodeGetInfoEnsureACL(conn) < 0)
return -1;
return libxlDriverNodeGetInfo(conn->privateData, info);
}
static char *
libxlConnectGetCapabilities(virConnectPtr conn)
{
libxlDriverPrivatePtr driver = conn->privateData;
char *xml;
libxlDriverConfigPtr cfg;
if (virConnectGetCapabilitiesEnsureACL(conn) < 0)
return NULL;
cfg = libxlDriverConfigGet(driver);
xml = virCapabilitiesFormatXML(cfg->caps);
virObjectUnref(cfg);
return xml;
}
static int
libxlConnectListDomains(virConnectPtr conn, int *ids, int nids)
{
libxlDriverPrivatePtr driver = conn->privateData;
if (virConnectListDomainsEnsureACL(conn) < 0)
return -1;
return virDomainObjListGetActiveIDs(driver->domains, ids, nids,
virConnectListDomainsCheckACL, conn);
}
static int
libxlConnectNumOfDomains(virConnectPtr conn)
{
libxlDriverPrivatePtr driver = conn->privateData;
if (virConnectNumOfDomainsEnsureACL(conn) < 0)
return -1;
return virDomainObjListNumOfDomains(driver->domains, true,
virConnectNumOfDomainsCheckACL, conn);
}
static virDomainPtr
libxlDomainCreateXML(virConnectPtr conn, const char *xml,
unsigned int flags)
{
libxlDriverPrivatePtr driver = conn->privateData;
virDomainDefPtr def;
virDomainObjPtr vm = NULL;
virDomainPtr dom = NULL;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
unsigned int parse_flags = VIR_DOMAIN_DEF_PARSE_INACTIVE;
virCheckFlags(VIR_DOMAIN_START_PAUSED |
VIR_DOMAIN_START_VALIDATE, NULL);
if (flags & VIR_DOMAIN_START_VALIDATE)
parse_flags |= VIR_DOMAIN_DEF_PARSE_VALIDATE_SCHEMA;
if (!(def = virDomainDefParseString(xml, cfg->caps, driver->xmlopt,
NULL, parse_flags)))
goto cleanup;
if (virDomainCreateXMLEnsureACL(conn, def) < 0)
goto cleanup;
if (!(vm = virDomainObjListAdd(driver->domains, def,
driver->xmlopt,
VIR_DOMAIN_OBJ_LIST_ADD_LIVE |
VIR_DOMAIN_OBJ_LIST_ADD_CHECK_LIVE,
NULL)))
goto cleanup;
def = NULL;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0) {
if (!vm->persistent)
virDomainObjListRemove(driver->domains, vm);
goto cleanup;
}
if (libxlDomainStartNew(driver, vm,
(flags & VIR_DOMAIN_START_PAUSED) != 0) < 0) {
if (!vm->persistent)
virDomainObjListRemove(driver->domains, vm);
goto endjob;
}
dom = virGetDomain(conn, vm->def->name, vm->def->uuid, vm->def->id);
endjob:
libxlDomainObjEndJob(driver, vm);
cleanup:
virDomainDefFree(def);
virDomainObjEndAPI(&vm);
virObjectUnref(cfg);
return dom;
}
static virDomainPtr
libxlDomainLookupByID(virConnectPtr conn, int id)
{
libxlDriverPrivatePtr driver = conn->privateData;
virDomainObjPtr vm;
virDomainPtr dom = NULL;
vm = virDomainObjListFindByID(driver->domains, id);
if (!vm) {
virReportError(VIR_ERR_NO_DOMAIN, NULL);
goto cleanup;
}
if (virDomainLookupByIDEnsureACL(conn, vm->def) < 0)
goto cleanup;
dom = virGetDomain(conn, vm->def->name, vm->def->uuid, vm->def->id);
cleanup:
virDomainObjEndAPI(&vm);
return dom;
}
static virDomainPtr
libxlDomainLookupByUUID(virConnectPtr conn, const unsigned char *uuid)
{
libxlDriverPrivatePtr driver = conn->privateData;
virDomainObjPtr vm;
virDomainPtr dom = NULL;
vm = virDomainObjListFindByUUID(driver->domains, uuid);
if (!vm) {
virReportError(VIR_ERR_NO_DOMAIN, NULL);
goto cleanup;
}
if (virDomainLookupByUUIDEnsureACL(conn, vm->def) < 0)
goto cleanup;
dom = virGetDomain(conn, vm->def->name, vm->def->uuid, vm->def->id);
cleanup:
virDomainObjEndAPI(&vm);
return dom;
}
static virDomainPtr
libxlDomainLookupByName(virConnectPtr conn, const char *name)
{
libxlDriverPrivatePtr driver = conn->privateData;
virDomainObjPtr vm;
virDomainPtr dom = NULL;
vm = virDomainObjListFindByName(driver->domains, name);
if (!vm) {
virReportError(VIR_ERR_NO_DOMAIN, NULL);
goto cleanup;
}
if (virDomainLookupByNameEnsureACL(conn, vm->def) < 0)
goto cleanup;
dom = virGetDomain(conn, vm->def->name, vm->def->uuid, vm->def->id);
cleanup:
virDomainObjEndAPI(&vm);
return dom;
}
static int
libxlDomainSuspend(virDomainPtr dom)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainObjPtr vm;
virObjectEventPtr event = NULL;
int ret = -1;
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
LIBXL_CHECK_DOM0_GOTO(vm->def->name, cleanup);
if (virDomainSuspendEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (virDomainObjGetState(vm, NULL) != VIR_DOMAIN_PAUSED) {
if (libxl_domain_pause(cfg->ctx, vm->def->id) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to suspend domain '%d' with libxenlight"),
vm->def->id);
goto endjob;
}
virDomainObjSetState(vm, VIR_DOMAIN_PAUSED, VIR_DOMAIN_PAUSED_USER);
event = virDomainEventLifecycleNewFromObj(vm, VIR_DOMAIN_EVENT_SUSPENDED,
VIR_DOMAIN_EVENT_SUSPENDED_PAUSED);
}
if (virDomainSaveStatus(driver->xmlopt, cfg->stateDir, vm, cfg->caps) < 0)
goto endjob;
ret = 0;
endjob:
libxlDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
virObjectEventStateQueue(driver->domainEventState, event);
virObjectUnref(cfg);
return ret;
}
static int
libxlDomainResume(virDomainPtr dom)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainObjPtr vm;
virObjectEventPtr event = NULL;
int ret = -1;
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
LIBXL_CHECK_DOM0_GOTO(vm->def->name, cleanup);
if (virDomainResumeEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (virDomainObjGetState(vm, NULL) == VIR_DOMAIN_PAUSED) {
if (libxl_domain_unpause(cfg->ctx, vm->def->id) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to resume domain '%d' with libxenlight"),
vm->def->id);
goto endjob;
}
virDomainObjSetState(vm, VIR_DOMAIN_RUNNING,
VIR_DOMAIN_RUNNING_UNPAUSED);
event = virDomainEventLifecycleNewFromObj(vm, VIR_DOMAIN_EVENT_RESUMED,
VIR_DOMAIN_EVENT_RESUMED_UNPAUSED);
}
if (virDomainSaveStatus(driver->xmlopt, cfg->stateDir, vm, cfg->caps) < 0)
goto endjob;
ret = 0;
endjob:
libxlDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
virObjectEventStateQueue(driver->domainEventState, event);
virObjectUnref(cfg);
return ret;
}
static int
libxlDomainShutdownFlags(virDomainPtr dom, unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainObjPtr vm;
int ret = -1;
virCheckFlags(VIR_DOMAIN_SHUTDOWN_ACPI_POWER_BTN |
VIR_DOMAIN_SHUTDOWN_PARAVIRT, -1);
if (flags == 0)
flags = VIR_DOMAIN_SHUTDOWN_PARAVIRT |
VIR_DOMAIN_SHUTDOWN_ACPI_POWER_BTN;
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
LIBXL_CHECK_DOM0_GOTO(vm->def->name, cleanup);
if (virDomainShutdownFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto cleanup;
if (flags & VIR_DOMAIN_SHUTDOWN_PARAVIRT) {
ret = libxl_domain_shutdown(cfg->ctx, vm->def->id);
if (ret == 0)
goto cleanup;
if (ret != ERROR_NOPARAVIRT) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to shutdown domain '%d' with libxenlight"),
vm->def->id);
ret = -1;
goto cleanup;
}
ret = -1;
}
if (flags & VIR_DOMAIN_SHUTDOWN_ACPI_POWER_BTN) {
ret = libxl_send_trigger(cfg->ctx, vm->def->id,
LIBXL_TRIGGER_POWER, 0);
if (ret == 0)
goto cleanup;
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to shutdown domain '%d' with libxenlight"),
vm->def->id);
ret = -1;
}
cleanup:
virDomainObjEndAPI(&vm);
virObjectUnref(cfg);
return ret;
}
static int
libxlDomainShutdown(virDomainPtr dom)
{
return libxlDomainShutdownFlags(dom, 0);
}
static int
libxlDomainReboot(virDomainPtr dom, unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainObjPtr vm;
int ret = -1;
virCheckFlags(VIR_DOMAIN_REBOOT_PARAVIRT, -1);
if (flags == 0)
flags = VIR_DOMAIN_REBOOT_PARAVIRT;
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
LIBXL_CHECK_DOM0_GOTO(vm->def->name, cleanup);
if (virDomainRebootEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto cleanup;
if (flags & VIR_DOMAIN_REBOOT_PARAVIRT) {
ret = libxl_domain_reboot(cfg->ctx, vm->def->id);
if (ret == 0)
goto cleanup;
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to reboot domain '%d' with libxenlight"),
vm->def->id);
ret = -1;
}
cleanup:
virDomainObjEndAPI(&vm);
virObjectUnref(cfg);
return ret;
}
static int
libxlDomainDestroyFlags(virDomainPtr dom,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainObjPtr vm;
int ret = -1;
virObjectEventPtr event = NULL;
virCheckFlags(0, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
LIBXL_CHECK_DOM0_GOTO(vm->def->name, cleanup);
if (virDomainDestroyFlagsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (libxlDomainDestroyInternal(driver, vm) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to destroy domain '%d'"), vm->def->id);
goto endjob;
}
virDomainObjSetState(vm, VIR_DOMAIN_SHUTOFF,
VIR_DOMAIN_SHUTOFF_DESTROYED);
event = virDomainEventLifecycleNewFromObj(vm, VIR_DOMAIN_EVENT_STOPPED,
VIR_DOMAIN_EVENT_STOPPED_DESTROYED);
libxlDomainCleanup(driver, vm);
if (!vm->persistent)
virDomainObjListRemove(driver->domains, vm);
ret = 0;
endjob:
libxlDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
virObjectEventStateQueue(driver->domainEventState, event);
virObjectUnref(cfg);
return ret;
}
static int
libxlDomainDestroy(virDomainPtr dom)
{
return libxlDomainDestroyFlags(dom, 0);
}
#ifdef LIBXL_HAVE_DOMAIN_SUSPEND_ONLY
static int
libxlDomainPMSuspendForDuration(virDomainPtr dom,
unsigned int target,
unsigned long long duration,
unsigned int flags)
{
virDomainObjPtr vm;
int ret = -1;
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virObjectEventPtr event = NULL;
virCheckFlags(0, -1);
if (target != VIR_NODE_SUSPEND_TARGET_MEM) {
virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED,
_("PMSuspend type %d not supported by libxenlight driver"),
target);
return -1;
}
if (duration != 0) {
virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
_("Duration not supported. Use 0 for now"));
return -1;
}
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainPMSuspendForDurationEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
/* Unlock virDomainObjPtr to not deadlock with even handler, which will try
* to send lifecycle event
*/
virObjectUnlock(vm);
ret = libxl_domain_suspend_only(cfg->ctx, vm->def->id, NULL);
virObjectLock(vm);
if (ret < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to suspend domain '%d'"), vm->def->id);
goto endjob;
}
virDomainObjSetState(vm, VIR_DOMAIN_PMSUSPENDED, VIR_DOMAIN_PMSUSPENDED_UNKNOWN);
event = virDomainEventLifecycleNewFromObj(vm, VIR_DOMAIN_EVENT_PMSUSPENDED,
VIR_DOMAIN_EVENT_PMSUSPENDED_MEMORY);
ret = 0;
endjob:
libxlDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
virObjectEventStateQueue(driver->domainEventState, event);
return ret;
}
#endif
static int
libxlDomainPMWakeup(virDomainPtr dom, unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
virObjectEventPtr event = NULL;
libxlDomainObjPrivatePtr priv;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virCheckFlags(0, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainPMWakeupEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjGetState(vm, NULL) != VIR_DOMAIN_PMSUSPENDED) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("Domain is not suspended"));
goto endjob;
}
priv = vm->privateData;
if (libxl_domain_resume(cfg->ctx, vm->def->id, 1, NULL) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to resume domain '%d'"), vm->def->id);
goto endjob;
}
virDomainObjSetState(vm, VIR_DOMAIN_RUNNING, VIR_DOMAIN_RUNNING_WAKEUP);
/* reenable death event - libxl reports it only once */
if (priv->deathW)
libxl_evdisable_domain_death(cfg->ctx, priv->deathW);
if (libxl_evenable_domain_death(cfg->ctx, vm->def->id, 0, &priv->deathW))
goto destroy_dom;
event = virDomainEventLifecycleNewFromObj(vm, VIR_DOMAIN_EVENT_STARTED,
VIR_DOMAIN_EVENT_STARTED_WAKEUP);
ret = 0;
goto endjob;
destroy_dom:
libxlDomainDestroyInternal(driver, vm);
vm->def->id = -1;
virDomainObjSetState(vm, VIR_DOMAIN_SHUTOFF, VIR_DOMAIN_SHUTOFF_FAILED);
event = virDomainEventLifecycleNewFromObj(vm, VIR_DOMAIN_EVENT_STOPPED,
VIR_DOMAIN_EVENT_STOPPED_FAILED);
libxlDomainCleanup(driver, vm);
endjob:
libxlDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
virObjectEventStateQueue(driver->domainEventState, event);
return ret;
}
static char *
libxlDomainGetOSType(virDomainPtr dom)
{
virDomainObjPtr vm;
char *type = NULL;
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainGetOSTypeEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
type = g_strdup(virDomainOSTypeToString(vm->def->os.type));
cleanup:
virDomainObjEndAPI(&vm);
return type;
}
static unsigned long long
libxlDomainGetMaxMemory(virDomainPtr dom)
{
virDomainObjPtr vm;
unsigned long long ret = 0;
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainGetMaxMemoryEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
ret = virDomainDefGetMemoryTotal(vm->def);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
/*
* Helper method for --current, --live, and --config options, and check
* whether domain is active or can get persistent domain configuration.
*
* Return 0 if success, also change the flags and get the persistent
* domain configuration if needed. Return -1 on error.
*/
static int
virDomainLiveConfigHelperMethod(virCapsPtr caps,
virDomainXMLOptionPtr xmlopt,
virDomainObjPtr dom,
unsigned int *flags,
virDomainDefPtr *persistentDef)
{
if (virDomainObjUpdateModificationImpact(dom, flags) < 0)
return -1;
if (*flags & VIR_DOMAIN_AFFECT_CONFIG) {
if (!(*persistentDef = virDomainObjGetPersistentDef(caps, xmlopt, dom, NULL))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Get persistent config failed"));
return -1;
}
}
return 0;
}
static int
libxlDomainSetMemoryFlags(virDomainPtr dom, unsigned long newmem,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainObjPtr vm;
virDomainDefPtr persistentDef = NULL;
int ret = -1;
virCheckFlags(VIR_DOMAIN_MEM_LIVE |
VIR_DOMAIN_MEM_CONFIG |
VIR_DOMAIN_MEM_MAXIMUM, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainSetMemoryFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainLiveConfigHelperMethod(cfg->caps, driver->xmlopt, vm, &flags,
&persistentDef) < 0)
goto endjob;
if (flags & VIR_DOMAIN_MEM_MAXIMUM) {
/* resize the maximum memory */
if (flags & VIR_DOMAIN_MEM_LIVE) {
if (libxl_domain_setmaxmem(cfg->ctx, vm->def->id, newmem) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to set maximum memory for domain '%d'"
" with libxenlight"), vm->def->id);
goto endjob;
}
}
if (flags & VIR_DOMAIN_MEM_CONFIG) {
/* Help clang 2.8 decipher the logic flow. */
sa_assert(persistentDef);
virDomainDefSetMemoryTotal(persistentDef, newmem);
if (persistentDef->mem.cur_balloon > newmem)
persistentDef->mem.cur_balloon = newmem;
ret = virDomainSaveConfig(cfg->configDir, cfg->caps, persistentDef);
goto endjob;
}
} else {
/* resize the current memory */
if (newmem > virDomainDefGetMemoryTotal(vm->def)) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("cannot set memory higher than max memory"));
goto endjob;
}
if (flags & VIR_DOMAIN_MEM_LIVE) {
int res;
/* Unlock virDomainObj while ballooning memory */
virObjectUnlock(vm);
res = libxl_set_memory_target(cfg->ctx, vm->def->id, newmem, 0,
/* force */ 1);
virObjectLock(vm);
if (res < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to set memory for domain '%d'"
" with libxenlight"), vm->def->id);
goto endjob;
}
vm->def->mem.cur_balloon = newmem;
}
if (flags & VIR_DOMAIN_MEM_CONFIG) {
sa_assert(persistentDef);
persistentDef->mem.cur_balloon = newmem;
ret = virDomainSaveConfig(cfg->configDir, cfg->caps, persistentDef);
goto endjob;
}
}
ret = 0;
endjob:
libxlDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
virObjectUnref(cfg);
return ret;
}
static int
libxlDomainSetMemory(virDomainPtr dom, unsigned long memory)
{
return libxlDomainSetMemoryFlags(dom, memory, VIR_DOMAIN_MEM_LIVE);
}
static int
libxlDomainSetMaxMemory(virDomainPtr dom, unsigned long memory)
{
return libxlDomainSetMemoryFlags(dom, memory, VIR_DOMAIN_MEM_MAXIMUM);
}
static int
libxlDomainGetInfo(virDomainPtr dom, virDomainInfoPtr info)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainObjPtr vm;
libxl_dominfo d_info;
int ret = -1;
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainGetInfoEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
info->maxMem = virDomainDefGetMemoryTotal(vm->def);
if (!virDomainObjIsActive(vm)) {
info->cpuTime = 0;
info->memory = vm->def->mem.cur_balloon;
} else {
libxl_dominfo_init(&d_info);
if (libxl_domain_info(cfg->ctx, &d_info, vm->def->id) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("libxl_domain_info failed for domain '%d'"),
vm->def->id);
goto cleanup;
}
info->cpuTime = d_info.cpu_time;
info->memory = d_info.current_memkb;
libxl_dominfo_dispose(&d_info);
}
info->state = virDomainObjGetState(vm, NULL);
info->nrVirtCpu = virDomainDefGetVcpus(vm->def);
ret = 0;
cleanup:
virDomainObjEndAPI(&vm);
virObjectUnref(cfg);
return ret;
}
static int
libxlDomainGetState(virDomainPtr dom,
int *state,
int *reason,
unsigned int flags)
{
virDomainObjPtr vm;
int ret = -1;
virCheckFlags(0, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainGetStateEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
*state = virDomainObjGetState(vm, reason);
ret = 0;
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
/*
* virDomainObjPtr must be locked on invocation
*/
static int
libxlDoDomainSave(libxlDriverPrivatePtr driver,
virDomainObjPtr vm,
const char *to,
bool managed)
{
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
libxlSavefileHeader hdr;
virObjectEventPtr event = NULL;
char *xml = NULL;
uint32_t xml_len;
int fd = -1;
int ret = -1;
if (virDomainObjGetState(vm, NULL) == VIR_DOMAIN_PAUSED) {
virReportError(VIR_ERR_OPERATION_INVALID,
_("Domain '%d' has to be running because libxenlight will"
" suspend it"), vm->def->id);
goto cleanup;
}
if ((fd = virFileOpenAs(to, O_CREAT|O_TRUNC|O_WRONLY, S_IRUSR|S_IWUSR,
-1, -1, 0)) < 0) {
virReportSystemError(-fd,
_("Failed to create domain save file '%s'"), to);
goto cleanup;
}
if ((xml = virDomainDefFormat(vm->def, cfg->caps, 0)) == NULL)
goto cleanup;
xml_len = strlen(xml) + 1;
memset(&hdr, 0, sizeof(hdr));
memcpy(hdr.magic, LIBXL_SAVE_MAGIC, sizeof(hdr.magic));
hdr.version = LIBXL_SAVE_VERSION;
hdr.xmlLen = xml_len;
if (safewrite(fd, &hdr, sizeof(hdr)) != sizeof(hdr)) {
virReportError(VIR_ERR_OPERATION_FAILED, "%s",
_("Failed to write save file header"));
goto cleanup;
}
if (safewrite(fd, xml, xml_len) != xml_len) {
virReportError(VIR_ERR_OPERATION_FAILED, "%s",
_("Failed to write xml description"));
goto cleanup;
}
/* Unlock virDomainObj while saving domain */
virObjectUnlock(vm);
ret = libxl_domain_suspend(cfg->ctx, vm->def->id, fd, 0, NULL);
virObjectLock(vm);
if (ret != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to save domain '%d' with libxenlight"),
vm->def->id);
ret = -1;
goto cleanup;
}
virDomainObjSetState(vm, VIR_DOMAIN_SHUTOFF,
VIR_DOMAIN_SHUTOFF_SAVED);
event = virDomainEventLifecycleNewFromObj(vm, VIR_DOMAIN_EVENT_STOPPED,
VIR_DOMAIN_EVENT_STOPPED_SAVED);
if (libxlDomainDestroyInternal(driver, vm) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to destroy domain '%d'"), vm->def->id);
goto cleanup;
}
libxlDomainCleanup(driver, vm);
vm->hasManagedSave = managed;
ret = 0;
cleanup:
VIR_FREE(xml);
if (VIR_CLOSE(fd) < 0)
virReportSystemError(errno, "%s", _("cannot close file"));
virObjectEventStateQueue(driver->domainEventState, event);
virObjectUnref(cfg);
return ret;
}
static int
libxlDomainSaveFlags(virDomainPtr dom, const char *to, const char *dxml,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
#ifdef LIBXL_HAVE_NO_SUSPEND_RESUME
virReportUnsupportedError();
return -1;
#endif
virCheckFlags(0, -1);
if (dxml) {
virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
_("xml modification unsupported"));
return -1;
}
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
LIBXL_CHECK_DOM0_GOTO(vm->def->name, cleanup);
if (virDomainSaveFlagsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (libxlDoDomainSave(driver, vm, to, false) < 0)
goto endjob;
if (!vm->persistent)
virDomainObjListRemove(driver->domains, vm);
ret = 0;
endjob:
libxlDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
libxlDomainSave(virDomainPtr dom, const char *to)
{
return libxlDomainSaveFlags(dom, to, NULL, 0);
}
static int
libxlDomainRestoreFlags(virConnectPtr conn, const char *from,
const char *dxml, unsigned int flags)
{
libxlDriverPrivatePtr driver = conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainObjPtr vm = NULL;
virDomainDefPtr def = NULL;
libxlSavefileHeader hdr;
int fd = -1;
int ret = -1;
#ifdef LIBXL_HAVE_NO_SUSPEND_RESUME
virReportUnsupportedError();
return -1;
#endif
virCheckFlags(VIR_DOMAIN_SAVE_PAUSED, -1);
if (dxml) {
virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
_("xml modification unsupported"));
return -1;
}
fd = libxlDomainSaveImageOpen(driver, cfg, from, &def, &hdr);
if (fd < 0)
goto cleanup;
if (virDomainRestoreFlagsEnsureACL(conn, def) < 0)
goto cleanup;
if (!(vm = virDomainObjListAdd(driver->domains, def,
driver->xmlopt,
VIR_DOMAIN_OBJ_LIST_ADD_LIVE |
VIR_DOMAIN_OBJ_LIST_ADD_CHECK_LIVE,
NULL)))
goto cleanup;
def = NULL;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0) {
if (!vm->persistent)
virDomainObjListRemove(driver->domains, vm);
goto cleanup;
}
ret = libxlDomainStartRestore(driver, vm,
(flags & VIR_DOMAIN_SAVE_PAUSED) != 0,
fd, hdr.version);
if (ret < 0 && !vm->persistent)
virDomainObjListRemove(driver->domains, vm);
libxlDomainObjEndJob(driver, vm);
cleanup:
if (VIR_CLOSE(fd) < 0)
virReportSystemError(errno, "%s", _("cannot close file"));
virDomainDefFree(def);
virDomainObjEndAPI(&vm);
virObjectUnref(cfg);
return ret;
}
static int
libxlDomainRestore(virConnectPtr conn, const char *from)
{
return libxlDomainRestoreFlags(conn, from, NULL, 0);
}
static int
libxlDomainCoreDump(virDomainPtr dom, const char *to, unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainObjPtr vm;
virObjectEventPtr event = NULL;
bool paused = false;
int ret = -1;
virCheckFlags(VIR_DUMP_LIVE | VIR_DUMP_CRASH, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
LIBXL_CHECK_DOM0_GOTO(vm->def->name, cleanup);
if (virDomainCoreDumpEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (!(flags & VIR_DUMP_LIVE) &&
virDomainObjGetState(vm, NULL) == VIR_DOMAIN_RUNNING) {
if (libxl_domain_pause(cfg->ctx, vm->def->id) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Before dumping core, failed to suspend domain '%d'"
" with libxenlight"),
vm->def->id);
goto endjob;
}
virDomainObjSetState(vm, VIR_DOMAIN_PAUSED, VIR_DOMAIN_PAUSED_DUMP);
paused = true;
}
/* Unlock virDomainObj while dumping core */
virObjectUnlock(vm);
ret = libxl_domain_core_dump(cfg->ctx, vm->def->id, to, NULL);
virObjectLock(vm);
if (ret != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to dump core of domain '%d' with libxenlight"),
vm->def->id);
ret = -1;
goto unpause;
}
if (flags & VIR_DUMP_CRASH) {
if (libxlDomainDestroyInternal(driver, vm) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to destroy domain '%d'"), vm->def->id);
goto unpause;
}
libxlDomainCleanup(driver, vm);
virDomainObjSetState(vm, VIR_DOMAIN_SHUTOFF,
VIR_DOMAIN_SHUTOFF_CRASHED);
event = virDomainEventLifecycleNewFromObj(vm, VIR_DOMAIN_EVENT_STOPPED,
VIR_DOMAIN_EVENT_STOPPED_CRASHED);
if (!vm->persistent)
virDomainObjListRemove(driver->domains, vm);
}
ret = 0;
unpause:
if (virDomainObjIsActive(vm) && paused) {
if (libxl_domain_unpause(cfg->ctx, vm->def->id) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("After dumping core, failed to resume domain '%d' with"
" libxenlight"), vm->def->id);
} else {
virDomainObjSetState(vm, VIR_DOMAIN_RUNNING,
VIR_DOMAIN_RUNNING_UNPAUSED);
}
}
endjob:
libxlDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
virObjectEventStateQueue(driver->domainEventState, event);
virObjectUnref(cfg);
return ret;
}
static int
libxlDomainManagedSave(virDomainPtr dom, unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr vm = NULL;
char *name = NULL;
int ret = -1;
virCheckFlags(0, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
LIBXL_CHECK_DOM0_GOTO(vm->def->name, cleanup);
if (virDomainManagedSaveEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (!vm->persistent) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot do managed save for transient domain"));
goto endjob;
}
name = libxlDomainManagedSavePath(driver, vm);
if (name == NULL)
goto endjob;
VIR_INFO("Saving state to %s", name);
if (libxlDoDomainSave(driver, vm, name, true) < 0)
goto endjob;
if (!vm->persistent)
virDomainObjListRemove(driver->domains, vm);
ret = 0;
endjob:
libxlDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
VIR_FREE(name);
return ret;
}
static int
libxlDomainManagedSaveLoad(virDomainObjPtr vm,
void *opaque)
{
libxlDriverPrivatePtr driver = opaque;
char *name;
int ret = -1;
virObjectLock(vm);
if (!(name = libxlDomainManagedSavePath(driver, vm)))
goto cleanup;
vm->hasManagedSave = virFileExists(name);
ret = 0;
cleanup:
virObjectUnlock(vm);
VIR_FREE(name);
return ret;
}
static int
libxlDomainHasManagedSaveImage(virDomainPtr dom, unsigned int flags)
{
virDomainObjPtr vm = NULL;
int ret = -1;
virCheckFlags(0, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainHasManagedSaveImageEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
ret = vm->hasManagedSave;
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
libxlDomainManagedSaveRemove(virDomainPtr dom, unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr vm = NULL;
int ret = -1;
char *name = NULL;
virCheckFlags(0, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainManagedSaveRemoveEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
name = libxlDomainManagedSavePath(driver, vm);
if (name == NULL)
goto cleanup;
ret = unlink(name);
vm->hasManagedSave = false;
cleanup:
VIR_FREE(name);
virDomainObjEndAPI(&vm);
return ret;
}
static int
libxlDomainSetVcpusFlags(virDomainPtr dom, unsigned int nvcpus,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainDefPtr def;
virDomainObjPtr vm;
libxl_bitmap map;
uint8_t *bitmask = NULL;
unsigned int maplen;
size_t i;
unsigned int pos;
int max;
int ret = -1;
virCheckFlags(VIR_DOMAIN_VCPU_LIVE |
VIR_DOMAIN_VCPU_CONFIG |
VIR_DOMAIN_VCPU_MAXIMUM, -1);
/* At least one of LIVE or CONFIG must be set. MAXIMUM cannot be
* mixed with LIVE. */
if ((flags & (VIR_DOMAIN_VCPU_LIVE | VIR_DOMAIN_VCPU_CONFIG)) == 0 ||
(flags & (VIR_DOMAIN_VCPU_MAXIMUM | VIR_DOMAIN_VCPU_LIVE)) ==
(VIR_DOMAIN_VCPU_MAXIMUM | VIR_DOMAIN_VCPU_LIVE)) {
virReportError(VIR_ERR_INVALID_ARG,
_("invalid flag combination: (0x%x)"), flags);
return -1;
}
if (!nvcpus) {
virReportError(VIR_ERR_INVALID_ARG, "%s", _("nvcpus is zero"));
return -1;
}
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainSetVcpusFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
goto cleanup;
if (!virDomainObjIsActive(vm) && (flags & VIR_DOMAIN_VCPU_LIVE)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot set vcpus on an inactive domain"));
goto endjob;
}
if (!vm->persistent && (flags & VIR_DOMAIN_VCPU_CONFIG)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot change persistent config of a transient domain"));
goto endjob;
}
if ((max = libxlConnectGetMaxVcpus(dom->conn, NULL)) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("could not determine max vcpus for the domain"));
goto endjob;
}
if (!(flags & VIR_DOMAIN_VCPU_MAXIMUM) && virDomainDefGetVcpusMax(vm->def) < max)
max = virDomainDefGetVcpusMax(vm->def);
if (nvcpus > max) {
virReportError(VIR_ERR_INVALID_ARG,
_("requested vcpus is greater than max allowable"
" vcpus for the domain: %d > %d"), nvcpus, max);
goto endjob;
}
if (!(def = virDomainObjGetPersistentDef(cfg->caps, driver->xmlopt, vm, NULL)))
goto endjob;
maplen = VIR_CPU_MAPLEN(nvcpus);
if (VIR_ALLOC_N(bitmask, maplen) < 0)
goto endjob;
for (i = 0; i < nvcpus; ++i) {
pos = i / 8;
bitmask[pos] |= 1 << (i % 8);
}
map.size = maplen;
map.map = bitmask;
switch (flags) {
case VIR_DOMAIN_VCPU_MAXIMUM | VIR_DOMAIN_VCPU_CONFIG:
if (virDomainDefSetVcpusMax(def, nvcpus, driver->xmlopt) < 0)
goto cleanup;
break;
case VIR_DOMAIN_VCPU_CONFIG:
if (virDomainDefSetVcpus(def, nvcpus) < 0)
goto cleanup;
break;
case VIR_DOMAIN_VCPU_LIVE:
if (libxl_set_vcpuonline(cfg->ctx, vm->def->id, &map) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to set vcpus for domain '%d'"
" with libxenlight"), vm->def->id);
goto endjob;
}
if (virDomainDefSetVcpus(vm->def, nvcpus) < 0)
goto endjob;
break;
case VIR_DOMAIN_VCPU_LIVE | VIR_DOMAIN_VCPU_CONFIG:
if (libxl_set_vcpuonline(cfg->ctx, vm->def->id, &map) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to set vcpus for domain '%d'"
" with libxenlight"), vm->def->id);
goto endjob;
}
if (virDomainDefSetVcpus(vm->def, nvcpus) < 0 ||
virDomainDefSetVcpus(def, nvcpus) < 0)
goto endjob;
break;
}
ret = 0;
if (flags & VIR_DOMAIN_VCPU_LIVE) {
if (virDomainSaveStatus(driver->xmlopt, cfg->stateDir, vm, cfg->caps) < 0) {
VIR_WARN("Unable to save status on vm %s after changing vcpus",
vm->def->name);
}
}
if (flags & VIR_DOMAIN_VCPU_CONFIG) {
if (virDomainSaveConfig(cfg->configDir, cfg->caps, def) < 0) {
VIR_WARN("Unable to save configuration of vm %s after changing vcpus",
vm->def->name);
}
}
endjob:
libxlDomainObjEndJob(driver, vm);
cleanup:
VIR_FREE(bitmask);
virDomainObjEndAPI(&vm);
virObjectUnref(cfg);
return ret;
}
static int
libxlDomainSetVcpus(virDomainPtr dom, unsigned int nvcpus)
{
return libxlDomainSetVcpusFlags(dom, nvcpus, VIR_DOMAIN_VCPU_LIVE);
}
static int
libxlDomainGetVcpusFlags(virDomainPtr dom, unsigned int flags)
{
virDomainObjPtr vm;
virDomainDefPtr def;
int ret = -1;
bool active;
virCheckFlags(VIR_DOMAIN_VCPU_LIVE |
VIR_DOMAIN_VCPU_CONFIG |
VIR_DOMAIN_VCPU_MAXIMUM, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainGetVcpusFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
active = virDomainObjIsActive(vm);
if ((flags & (VIR_DOMAIN_VCPU_LIVE | VIR_DOMAIN_VCPU_CONFIG)) == 0) {
if (active)
flags |= VIR_DOMAIN_VCPU_LIVE;
else
flags |= VIR_DOMAIN_VCPU_CONFIG;
}
if ((flags & VIR_DOMAIN_VCPU_LIVE) && (flags & VIR_DOMAIN_VCPU_CONFIG)) {
virReportError(VIR_ERR_INVALID_ARG,
_("invalid flag combination: (0x%x)"), flags);
return -1;
}
if (flags & VIR_DOMAIN_VCPU_LIVE) {
if (!active) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("Domain is not running"));
goto cleanup;
}
def = vm->def;
} else {
if (!vm->persistent) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("domain is transient"));
goto cleanup;
}
def = vm->newDef ? vm->newDef : vm->def;
}
if (flags & VIR_DOMAIN_VCPU_MAXIMUM)
ret = virDomainDefGetVcpusMax(def);
else
ret = virDomainDefGetVcpus(def);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
libxlDomainGetMaxVcpus(virDomainPtr dom)
{
return libxlDomainGetVcpusFlags(dom, (VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_VCPU_MAXIMUM));
}
static int
libxlDomainPinVcpuFlags(virDomainPtr dom, unsigned int vcpu,
unsigned char *cpumap, int maplen,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainDefPtr targetDef = NULL;
virBitmapPtr pcpumap = NULL;
virDomainVcpuDefPtr vcpuinfo;
virDomainObjPtr vm;
int ret = -1;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainPinVcpuFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainLiveConfigHelperMethod(cfg->caps, driver->xmlopt, vm,
&flags, &targetDef) < 0)
goto endjob;
if (flags & VIR_DOMAIN_AFFECT_LIVE)
targetDef = vm->def;
/* Make sure coverity knows targetDef is valid at this point. */
sa_assert(targetDef);
pcpumap = virBitmapNewData(cpumap, maplen);
if (!pcpumap)
goto endjob;
if (!(vcpuinfo = virDomainDefGetVcpu(targetDef, vcpu)) ||
!vcpuinfo->online) {
virReportError(VIR_ERR_INVALID_ARG,
_("vcpu '%u' is not active"), vcpu);
goto endjob;
}
if (flags & VIR_DOMAIN_AFFECT_LIVE) {
libxl_bitmap map = { .size = maplen, .map = cpumap };
if (libxl_set_vcpuaffinity(cfg->ctx, vm->def->id, vcpu, &map, NULL) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to pin vcpu '%d' with libxenlight"),
vcpu);
goto endjob;
}
}
virBitmapFree(vcpuinfo->cpumask);
vcpuinfo->cpumask = pcpumap;
pcpumap = NULL;
ret = 0;
if (flags & VIR_DOMAIN_AFFECT_LIVE) {
ret = virDomainSaveStatus(driver->xmlopt, cfg->stateDir, vm, cfg->caps);
} else if (flags & VIR_DOMAIN_AFFECT_CONFIG) {
ret = virDomainSaveConfig(cfg->configDir, cfg->caps, targetDef);
}
endjob:
libxlDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
virBitmapFree(pcpumap);
virObjectUnref(cfg);
return ret;
}
static int
libxlDomainPinVcpu(virDomainPtr dom, unsigned int vcpu, unsigned char *cpumap,
int maplen)
{
return libxlDomainPinVcpuFlags(dom, vcpu, cpumap, maplen,
VIR_DOMAIN_AFFECT_LIVE);
}
static int
libxlDomainGetVcpuPinInfo(virDomainPtr dom, int ncpumaps,
unsigned char *cpumaps, int maplen,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainObjPtr vm = NULL;
virDomainDefPtr targetDef = NULL;
int ret = -1;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainGetVcpuPinInfoEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (virDomainLiveConfigHelperMethod(cfg->caps, driver->xmlopt, vm,
&flags, &targetDef) < 0)
goto cleanup;
if (flags & VIR_DOMAIN_AFFECT_LIVE)
targetDef = vm->def;
/* Make sure coverity knows targetDef is valid at this point. */
sa_assert(targetDef);
ret = virDomainDefGetVcpuPinInfoHelper(targetDef, maplen, ncpumaps, cpumaps,
libxl_get_max_cpus(cfg->ctx), NULL);
cleanup:
virDomainObjEndAPI(&vm);
virObjectUnref(cfg);
return ret;
}
static int
libxlDomainGetVcpus(virDomainPtr dom, virVcpuInfoPtr info, int maxinfo,
unsigned char *cpumaps, int maplen)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainObjPtr vm;
int ret = -1;
libxl_vcpuinfo *vcpuinfo;
int maxcpu, hostcpus;
size_t i;
unsigned char *cpumap;
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainGetVcpusEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto cleanup;
if ((vcpuinfo = libxl_list_vcpu(cfg->ctx, vm->def->id, &maxcpu,
&hostcpus)) == NULL) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to list vcpus for domain '%d' with libxenlight"),
vm->def->id);
goto cleanup;
}
if (cpumaps && maplen > 0)
memset(cpumaps, 0, maplen * maxinfo);
for (i = 0; i < maxcpu && i < maxinfo; ++i) {
info[i].number = vcpuinfo[i].vcpuid;
info[i].cpu = vcpuinfo[i].cpu;
info[i].cpuTime = vcpuinfo[i].vcpu_time;
if (vcpuinfo[i].running)
info[i].state = VIR_VCPU_RUNNING;
else if (vcpuinfo[i].blocked)
info[i].state = VIR_VCPU_BLOCKED;
else
info[i].state = VIR_VCPU_OFFLINE;
if (cpumaps && maplen > 0) {
cpumap = VIR_GET_CPUMAP(cpumaps, maplen, i);
memcpy(cpumap, vcpuinfo[i].cpumap.map,
MIN(maplen, vcpuinfo[i].cpumap.size));
}
libxl_vcpuinfo_dispose(&vcpuinfo[i]);
}
VIR_FREE(vcpuinfo);
ret = maxinfo;
cleanup:
virDomainObjEndAPI(&vm);
virObjectUnref(cfg);
return ret;
}
static char *
libxlDomainGetXMLDesc(virDomainPtr dom, unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainObjPtr vm;
virDomainDefPtr def;
char *ret = NULL;
virCheckFlags(VIR_DOMAIN_XML_COMMON_FLAGS, NULL);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainGetXMLDescEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if ((flags & VIR_DOMAIN_XML_INACTIVE) && vm->newDef)
def = vm->newDef;
else
def = vm->def;
ret = virDomainDefFormat(def, cfg->caps,
virDomainDefFormatConvertXMLFlags(flags));
cleanup:
virDomainObjEndAPI(&vm);
virObjectUnref(cfg);
return ret;
}
static char *
libxlConnectDomainXMLFromNative(virConnectPtr conn,
const char *nativeFormat,
const char *nativeConfig,
unsigned int flags)
{
libxlDriverPrivatePtr driver = conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainDefPtr def = NULL;
g_autoptr(virConf) conf = NULL;
char *xml = NULL;
virCheckFlags(0, NULL);
if (virConnectDomainXMLFromNativeEnsureACL(conn) < 0)
goto cleanup;
if (STREQ(nativeFormat, XEN_CONFIG_FORMAT_XL)) {
if (!(conf = virConfReadString(nativeConfig, 0)))
goto cleanup;
if (!(def = xenParseXL(conf,
cfg->caps,
driver->xmlopt)))
goto cleanup;
} else if (STREQ(nativeFormat, XEN_CONFIG_FORMAT_XM)) {
if (!(conf = virConfReadString(nativeConfig, 0)))
goto cleanup;
if (!(def = xenParseXM(conf,
cfg->caps,
driver->xmlopt)))
goto cleanup;
} else if (STREQ(nativeFormat, XEN_CONFIG_FORMAT_SEXPR)) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("conversion from 'xen-sxpr' format is no longer supported"));
goto cleanup;
} else {
virReportError(VIR_ERR_INVALID_ARG,
_("unsupported config type %s"), nativeFormat);
goto cleanup;
}
xml = virDomainDefFormat(def, cfg->caps, VIR_DOMAIN_DEF_FORMAT_INACTIVE);
cleanup:
virDomainDefFree(def);
virObjectUnref(cfg);
return xml;
}
#define MAX_CONFIG_SIZE (1024 * 65)
static char *
libxlConnectDomainXMLToNative(virConnectPtr conn, const char * nativeFormat,
const char * domainXml,
unsigned int flags)
{
libxlDriverPrivatePtr driver = conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainDefPtr def = NULL;
g_autoptr(virConf) conf = NULL;
int len = MAX_CONFIG_SIZE;
char *ret = NULL;
virCheckFlags(0, NULL);
if (virConnectDomainXMLToNativeEnsureACL(conn) < 0)
goto cleanup;
if (!(def = virDomainDefParseString(domainXml,
cfg->caps, driver->xmlopt, NULL,
VIR_DOMAIN_DEF_PARSE_INACTIVE)))
goto cleanup;
if (STREQ(nativeFormat, XEN_CONFIG_FORMAT_XL)) {
if (!(conf = xenFormatXL(def, conn)))
goto cleanup;
} else if (STREQ(nativeFormat, XEN_CONFIG_FORMAT_XM)) {
if (!(conf = xenFormatXM(conn, def)))
goto cleanup;
} else {
virReportError(VIR_ERR_INVALID_ARG,
_("unsupported config type %s"), nativeFormat);
goto cleanup;
}
if (VIR_ALLOC_N(ret, len) < 0)
goto cleanup;
if (virConfWriteMem(ret, &len, conf) < 0) {
VIR_FREE(ret);
goto cleanup;
}
cleanup:
virDomainDefFree(def);
virObjectUnref(cfg);
return ret;
}
static int
libxlConnectListDefinedDomains(virConnectPtr conn,
char **const names, int nnames)
{
libxlDriverPrivatePtr driver = conn->privateData;
if (virConnectListDefinedDomainsEnsureACL(conn) < 0)
return -1;
return virDomainObjListGetInactiveNames(driver->domains, names, nnames,
virConnectListDefinedDomainsCheckACL,
conn);
}
static int
libxlConnectNumOfDefinedDomains(virConnectPtr conn)
{
libxlDriverPrivatePtr driver = conn->privateData;
if (virConnectNumOfDefinedDomainsEnsureACL(conn) < 0)
return -1;
return virDomainObjListNumOfDomains(driver->domains, false,
virConnectNumOfDefinedDomainsCheckACL,
conn);
}
static int
libxlDomainCreateWithFlags(virDomainPtr dom,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
virCheckFlags(VIR_DOMAIN_START_PAUSED, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainCreateWithFlagsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("Domain is already running"));
goto endjob;
}
ret = libxlDomainStartNew(driver, vm,
(flags & VIR_DOMAIN_START_PAUSED) != 0);
if (ret < 0)
goto endjob;
dom->id = vm->def->id;
endjob:
libxlDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
libxlDomainCreate(virDomainPtr dom)
{
return libxlDomainCreateWithFlags(dom, 0);
}
static virDomainPtr
libxlDomainDefineXMLFlags(virConnectPtr conn, const char *xml, unsigned int flags)
{
libxlDriverPrivatePtr driver = conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainDefPtr def = NULL;
virDomainObjPtr vm = NULL;
virDomainPtr dom = NULL;
virObjectEventPtr event = NULL;
virDomainDefPtr oldDef = NULL;
unsigned int parse_flags = VIR_DOMAIN_DEF_PARSE_INACTIVE;
virCheckFlags(VIR_DOMAIN_DEFINE_VALIDATE, NULL);
if (flags & VIR_DOMAIN_DEFINE_VALIDATE)
parse_flags |= VIR_DOMAIN_DEF_PARSE_VALIDATE_SCHEMA;
if (!(def = virDomainDefParseString(xml, cfg->caps, driver->xmlopt,
NULL, parse_flags)))
goto cleanup;
if (virXMLCheckIllegalChars("name", def->name, "\n") < 0)
goto cleanup;
if (virDomainDefineXMLFlagsEnsureACL(conn, def) < 0)
goto cleanup;
if (!(vm = virDomainObjListAdd(driver->domains, def,
driver->xmlopt,
0,
&oldDef)))
goto cleanup;
def = NULL;
vm->persistent = 1;
if (virDomainSaveConfig(cfg->configDir,
cfg->caps,
vm->newDef ? vm->newDef : vm->def) < 0) {
virDomainObjListRemove(driver->domains, vm);
goto cleanup;
}
dom = virGetDomain(conn, vm->def->name, vm->def->uuid, vm->def->id);
event = virDomainEventLifecycleNewFromObj(vm, VIR_DOMAIN_EVENT_DEFINED,
!oldDef ?
VIR_DOMAIN_EVENT_DEFINED_ADDED :
VIR_DOMAIN_EVENT_DEFINED_UPDATED);
cleanup:
virDomainDefFree(def);
virDomainDefFree(oldDef);
virDomainObjEndAPI(&vm);
virObjectEventStateQueue(driver->domainEventState, event);
virObjectUnref(cfg);
return dom;
}
static virDomainPtr
libxlDomainDefineXML(virConnectPtr conn, const char *xml)
{
return libxlDomainDefineXMLFlags(conn, xml, 0);
}
static int
libxlDomainUndefineFlags(virDomainPtr dom,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainObjPtr vm;
virObjectEventPtr event = NULL;
char *name = NULL;
int ret = -1;
virCheckFlags(VIR_DOMAIN_UNDEFINE_MANAGED_SAVE, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainUndefineFlagsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (!vm->persistent) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("cannot undefine transient domain"));
goto cleanup;
}
name = libxlDomainManagedSavePath(driver, vm);
if (name == NULL)
goto cleanup;
if (virFileExists(name)) {
if (flags & VIR_DOMAIN_UNDEFINE_MANAGED_SAVE) {
if (unlink(name) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Failed to remove domain managed save image"));
goto cleanup;
}
} else {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("Refusing to undefine while domain managed "
"save image exists"));
goto cleanup;
}
}
if (virDomainDeleteConfig(cfg->configDir, cfg->autostartDir, vm) < 0)
goto cleanup;
event = virDomainEventLifecycleNewFromObj(vm, VIR_DOMAIN_EVENT_UNDEFINED,
VIR_DOMAIN_EVENT_UNDEFINED_REMOVED);
if (virDomainObjIsActive(vm))
vm->persistent = 0;
else
virDomainObjListRemove(driver->domains, vm);
ret = 0;
cleanup:
VIR_FREE(name);
virDomainObjEndAPI(&vm);
virObjectEventStateQueue(driver->domainEventState, event);
virObjectUnref(cfg);
return ret;
}
static int
libxlDomainUndefine(virDomainPtr dom)
{
return libxlDomainUndefineFlags(dom, 0);
}
static int
libxlDomainChangeEjectableMedia(virDomainObjPtr vm, virDomainDiskDefPtr disk)
{
libxlDriverConfigPtr cfg = libxlDriverConfigGet(libxl_driver);
virDomainDiskDefPtr origdisk = NULL;
libxl_device_disk x_disk;
size_t i;
int ret = -1;
for (i = 0; i < vm->def->ndisks; i++) {
if (vm->def->disks[i]->bus == disk->bus &&
STREQ(vm->def->disks[i]->dst, disk->dst)) {
origdisk = vm->def->disks[i];
break;
}
}
if (!origdisk) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("No device with bus '%s' and target '%s'"),
virDomainDiskBusTypeToString(disk->bus), disk->dst);
goto cleanup;
}
if (origdisk->device != VIR_DOMAIN_DISK_DEVICE_CDROM) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Removable media not supported for %s device"),
virDomainDiskDeviceTypeToString(disk->device));
return -1;
}
if (libxlMakeDisk(disk, &x_disk) < 0)
goto cleanup;
if ((ret = libxl_cdrom_insert(cfg->ctx, vm->def->id, &x_disk, NULL)) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("libxenlight failed to change media for disk '%s'"),
disk->dst);
goto cleanup;
}
if (virDomainDiskSetSource(origdisk, virDomainDiskGetSource(disk)) < 0)
goto cleanup;
virDomainDiskSetType(origdisk, virDomainDiskGetType(disk));
virDomainDiskDefFree(disk);
ret = 0;
cleanup:
virObjectUnref(cfg);
return ret;
}
static int
libxlDomainAttachDeviceDiskLive(virDomainObjPtr vm, virDomainDeviceDefPtr dev)
{
libxlDriverConfigPtr cfg = libxlDriverConfigGet(libxl_driver);
virDomainDiskDefPtr l_disk = dev->data.disk;
libxl_device_disk x_disk;
int ret = -1;
switch (l_disk->device) {
case VIR_DOMAIN_DISK_DEVICE_CDROM:
ret = libxlDomainChangeEjectableMedia(vm, l_disk);
break;
case VIR_DOMAIN_DISK_DEVICE_DISK:
if (l_disk->bus == VIR_DOMAIN_DISK_BUS_XEN) {
if (virDomainDiskIndexByName(vm->def, l_disk->dst, true) >= 0) {
virReportError(VIR_ERR_OPERATION_FAILED,
_("target %s already exists"), l_disk->dst);
goto cleanup;
}
if (!virDomainDiskGetSource(l_disk)) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("disk source path is missing"));
goto cleanup;
}
if (VIR_REALLOC_N(vm->def->disks, vm->def->ndisks+1) < 0)
goto cleanup;
if (libxlMakeDisk(l_disk, &x_disk) < 0)
goto cleanup;
if (virDomainLockImageAttach(libxl_driver->lockManager,
"xen:///system",
vm, l_disk->src) < 0)
goto cleanup;
if ((ret = libxl_device_disk_add(cfg->ctx, vm->def->id,
&x_disk, NULL)) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("libxenlight failed to attach disk '%s'"),
l_disk->dst);
if (virDomainLockImageDetach(libxl_driver->lockManager,
vm, l_disk->src) < 0) {
VIR_WARN("Unable to release lock on %s",
virDomainDiskGetSource(l_disk));
}
goto cleanup;
}
libxlUpdateDiskDef(l_disk, &x_disk);
virDomainDiskInsertPreAlloced(vm->def, l_disk);
} else {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("disk bus '%s' cannot be hotplugged."),
virDomainDiskBusTypeToString(l_disk->bus));
}
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("disk device type '%s' cannot be hotplugged"),
virDomainDiskDeviceTypeToString(l_disk->device));
break;
}
cleanup:
virObjectUnref(cfg);
return ret;
}
static int
libxlDomainAttachHostPCIDevice(libxlDriverPrivatePtr driver,
virDomainObjPtr vm,
virDomainHostdevDefPtr hostdev)
{
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
libxl_device_pci pcidev;
virDomainHostdevDefPtr found;
virHostdevManagerPtr hostdev_mgr = driver->hostdevMgr;
virDomainHostdevSubsysPCIPtr pcisrc = &hostdev->source.subsys.u.pci;
int ret = -1;
libxl_device_pci_init(&pcidev);
if (virDomainHostdevFind(vm->def, hostdev, &found) >= 0) {
virReportError(VIR_ERR_OPERATION_FAILED,
_("target pci device " VIR_PCI_DEVICE_ADDRESS_FMT
" already exists"),
pcisrc->addr.domain, pcisrc->addr.bus,
pcisrc->addr.slot, pcisrc->addr.function);
goto cleanup;
}
if (VIR_REALLOC_N(vm->def->hostdevs, vm->def->nhostdevs + 1) < 0)
goto cleanup;
if (virHostdevPreparePCIDevices(hostdev_mgr, LIBXL_DRIVER_NAME,
vm->def->name, vm->def->uuid,
&hostdev, 1, 0) < 0)
goto cleanup;
if (libxlMakePCI(hostdev, &pcidev) < 0)
goto error;
if (libxl_device_pci_add(cfg->ctx, vm->def->id, &pcidev, 0) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("libxenlight failed to attach pci device "
VIR_PCI_DEVICE_ADDRESS_FMT),
pcisrc->addr.domain, pcisrc->addr.bus,
pcisrc->addr.slot, pcisrc->addr.function);
goto error;
}
vm->def->hostdevs[vm->def->nhostdevs++] = hostdev;
ret = 0;
goto cleanup;
error:
virHostdevReAttachPCIDevices(hostdev_mgr, LIBXL_DRIVER_NAME,
vm->def->name, &hostdev, 1, NULL);
cleanup:
virObjectUnref(cfg);
libxl_device_pci_dispose(&pcidev);
return ret;
}
#ifdef LIBXL_HAVE_PVUSB
static int
libxlDomainAttachControllerDevice(libxlDriverPrivatePtr driver,
virDomainObjPtr vm,
virDomainControllerDefPtr controller)
{
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
const char *type = virDomainControllerTypeToString(controller->type);
libxl_device_usbctrl usbctrl;
int ret = -1;
libxl_device_usbctrl_init(&usbctrl);
if (controller->type != VIR_DOMAIN_CONTROLLER_TYPE_USB) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
_("'%s' controller cannot be hot plugged."),
type);
goto cleanup;
}
if (controller->idx == -1)
controller->idx = virDomainControllerFindUnusedIndex(vm->def,
controller->type);
if (controller->opts.usbopts.ports == -1)
controller->opts.usbopts.ports = 8;
if (virDomainControllerFind(vm->def, controller->type, controller->idx) >= 0) {
virReportError(VIR_ERR_OPERATION_FAILED,
_("target %s:%d already exists"),
type, controller->idx);
goto cleanup;
}
if (VIR_REALLOC_N(vm->def->controllers, vm->def->ncontrollers + 1) < 0)
goto cleanup;
if (libxlMakeUSBController(controller, &usbctrl) < 0)
goto cleanup;
if (libxl_device_usbctrl_add(cfg->ctx, vm->def->id, &usbctrl, 0) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("libxenlight failed to attach USB controller"));
goto cleanup;
}
virDomainControllerInsertPreAlloced(vm->def, controller);
ret = 0;
cleanup:
virObjectUnref(cfg);
libxl_device_usbctrl_dispose(&usbctrl);
return ret;
}
static int
libxlDomainAttachHostUSBDevice(libxlDriverPrivatePtr driver,
virDomainObjPtr vm,
virDomainHostdevDefPtr hostdev)
{
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
libxl_device_usbdev usbdev;
virHostdevManagerPtr hostdev_mgr = driver->hostdevMgr;
int ret = -1;
size_t i;
int ports = 0, usbdevs = 0;
libxl_device_usbdev_init(&usbdev);
if (hostdev->mode != VIR_DOMAIN_HOSTDEV_MODE_SUBSYS ||
hostdev->source.subsys.type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB)
goto cleanup;
/* search for available controller:port */
for (i = 0; i < vm->def->ncontrollers; i++)
ports += vm->def->controllers[i]->opts.usbopts.ports;
for (i = 0; i < vm->def->nhostdevs; i++) {
if (hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS &&
hostdev->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB)
usbdevs++;
}
if (ports <= usbdevs) {
/* no free ports, we will create a new usb controller */
virDomainControllerDefPtr controller;
if (!(controller = virDomainControllerDefNew(VIR_DOMAIN_CONTROLLER_TYPE_USB)))
goto cleanup;
controller->model = VIR_DOMAIN_CONTROLLER_MODEL_USB_QUSB2;
controller->idx = -1;
controller->opts.usbopts.ports = 8;
if (libxlDomainAttachControllerDevice(driver, vm, controller) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("No available USB controller and port, and "
"failed to attach a new one"));
virDomainControllerDefFree(controller);
goto cleanup;
}
}
if (VIR_REALLOC_N(vm->def->hostdevs, vm->def->nhostdevs + 1) < 0)
goto cleanup;
if (virHostdevPrepareUSBDevices(hostdev_mgr, LIBXL_DRIVER_NAME,
vm->def->name, &hostdev, 1, 0) < 0)
goto cleanup;
if (libxlMakeUSB(hostdev, &usbdev) < 0)
goto reattach;
if (libxl_device_usbdev_add(cfg->ctx, vm->def->id, &usbdev, 0) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("libxenlight failed to attach usb device Busnum:%3x, Devnum:%3x"),
hostdev->source.subsys.u.usb.bus,
hostdev->source.subsys.u.usb.device);
goto reattach;
}
vm->def->hostdevs[vm->def->nhostdevs++] = hostdev;
ret = 0;
goto cleanup;
reattach:
virHostdevReAttachUSBDevices(hostdev_mgr, LIBXL_DRIVER_NAME,
vm->def->name, &hostdev, 1);
cleanup:
virObjectUnref(cfg);
libxl_device_usbdev_dispose(&usbdev);
return ret;
}
#endif
static int
libxlDomainAttachHostDevice(libxlDriverPrivatePtr driver,
virDomainObjPtr vm,
virDomainHostdevDefPtr hostdev)
{
if (hostdev->mode != VIR_DOMAIN_HOSTDEV_MODE_SUBSYS) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("hostdev mode '%s' not supported"),
virDomainHostdevModeTypeToString(hostdev->mode));
return -1;
}
switch (hostdev->source.subsys.type) {
case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI:
if (libxlDomainAttachHostPCIDevice(driver, vm, hostdev) < 0)
return -1;
break;
#ifdef LIBXL_HAVE_PVUSB
case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB:
if (libxlDomainAttachHostUSBDevice(driver, vm, hostdev) < 0)
return -1;
break;
#endif
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("hostdev subsys type '%s' not supported"),
virDomainHostdevSubsysTypeToString(hostdev->source.subsys.type));
return -1;
}
return 0;
}
static int
libxlDomainDetachDeviceDiskLive(virDomainObjPtr vm, virDomainDeviceDefPtr dev)
{
libxlDriverConfigPtr cfg = libxlDriverConfigGet(libxl_driver);
virDomainDiskDefPtr l_disk = NULL;
libxl_device_disk x_disk;
int idx;
int ret = -1;
switch (dev->data.disk->device) {
case VIR_DOMAIN_DISK_DEVICE_DISK:
if (dev->data.disk->bus == VIR_DOMAIN_DISK_BUS_XEN) {
if ((idx = virDomainDiskIndexByName(vm->def,
dev->data.disk->dst,
false)) < 0) {
virReportError(VIR_ERR_OPERATION_FAILED,
_("disk %s not found"), dev->data.disk->dst);
goto cleanup;
}
l_disk = vm->def->disks[idx];
if (libxlMakeDisk(l_disk, &x_disk) < 0)
goto cleanup;
if ((ret = libxl_device_disk_remove(cfg->ctx, vm->def->id,
&x_disk, NULL)) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("libxenlight failed to detach disk '%s'"),
l_disk->dst);
goto cleanup;
}
if (virDomainLockImageDetach(libxl_driver->lockManager,
vm, l_disk->src) < 0)
VIR_WARN("Unable to release lock on %s",
virDomainDiskGetSource(l_disk));
virDomainDiskRemove(vm->def, idx);
virDomainDiskDefFree(l_disk);
} else {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("disk bus '%s' cannot be hot unplugged."),
virDomainDiskBusTypeToString(dev->data.disk->bus));
}
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("device type '%s' cannot hot unplugged"),
virDomainDiskDeviceTypeToString(dev->data.disk->device));
break;
}
cleanup:
virObjectUnref(cfg);
return ret;
}
static int
libxlDomainAttachNetDevice(libxlDriverPrivatePtr driver,
virDomainObjPtr vm,
virDomainNetDefPtr net)
{
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainNetType actualType;
libxl_device_nic nic;
int ret = -1;
char mac[VIR_MAC_STRING_BUFLEN];
virConnectPtr conn = NULL;
virErrorPtr save_err = NULL;
libxl_device_nic_init(&nic);
/* preallocate new slot for device */
if (VIR_REALLOC_N(vm->def->nets, vm->def->nnets + 1) < 0)
goto cleanup;
/* If appropriate, grab a physical device from the configured
* network's pool of devices, or resolve bridge device name
* to the one defined in the network definition.
*/
if (net->type == VIR_DOMAIN_NET_TYPE_NETWORK) {
if (!(conn = virGetConnectNetwork()))
goto cleanup;
if (virDomainNetAllocateActualDevice(conn, vm->def, net) < 0)
goto cleanup;
}
/* final validation now that actual type is known */
if (virDomainActualNetDefValidate(net) < 0)
return -1;
actualType = virDomainNetGetActualType(net);
if (virDomainHasNet(vm->def, net)) {
virReportError(VIR_ERR_INVALID_ARG,
_("network device with mac %s already exists"),
virMacAddrFormat(&net->mac, mac));
goto cleanup;
}
if (actualType == VIR_DOMAIN_NET_TYPE_HOSTDEV) {
virDomainHostdevDefPtr hostdev = virDomainNetGetActualHostdev(net);
virDomainHostdevSubsysPCIPtr pcisrc = &hostdev->source.subsys.u.pci;
/* For those just allocated from a network pool whose backend is
* still VIR_DOMAIN_HOSTDEV_PCI_BACKEND_DEFAULT, we need to set
* backend correctly.
*/
if (hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS &&
hostdev->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI)
pcisrc->backend = VIR_DOMAIN_HOSTDEV_PCI_BACKEND_XEN;
/* This is really a "smart hostdev", so it should be attached
* as a hostdev (the hostdev code will reach over into the
* netdev-specific code as appropriate), then also added to
* the nets list if successful.
*/
ret = libxlDomainAttachHostDevice(driver, vm, hostdev);
goto cleanup;
}
if (libxlMakeNic(vm->def, net, &nic, true) < 0)
goto cleanup;
if (libxl_device_nic_add(cfg->ctx, vm->def->id, &nic, 0)) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("libxenlight failed to attach network device"));
goto cleanup;
}
ret = 0;
cleanup:
virErrorPreserveLast(&save_err);
libxl_device_nic_dispose(&nic);
if (!ret) {
vm->def->nets[vm->def->nnets++] = net;
} else {
virDomainNetRemoveHostdev(vm->def, net);
if (net->type == VIR_DOMAIN_NET_TYPE_NETWORK && conn)
virDomainNetReleaseActualDevice(conn, vm->def, net);
}
virObjectUnref(conn);
virObjectUnref(cfg);
virErrorRestore(&save_err);
return ret;
}
static int
libxlDomainAttachDeviceLive(libxlDriverPrivatePtr driver,
virDomainObjPtr vm,
virDomainDeviceDefPtr dev)
{
int ret = -1;
switch (dev->type) {
case VIR_DOMAIN_DEVICE_DISK:
ret = libxlDomainAttachDeviceDiskLive(vm, dev);
if (!ret)
dev->data.disk = NULL;
break;
#ifdef LIBXL_HAVE_PVUSB
case VIR_DOMAIN_DEVICE_CONTROLLER:
ret = libxlDomainAttachControllerDevice(driver, vm, dev->data.controller);
if (!ret)
dev->data.controller = NULL;
break;
#endif
case VIR_DOMAIN_DEVICE_NET:
ret = libxlDomainAttachNetDevice(driver, vm,
dev->data.net);
if (!ret)
dev->data.net = NULL;
break;
case VIR_DOMAIN_DEVICE_HOSTDEV:
ret = libxlDomainAttachHostDevice(driver, vm,
dev->data.hostdev);
if (!ret)
dev->data.hostdev = NULL;
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("device type '%s' cannot be attached"),
virDomainDeviceTypeToString(dev->type));
break;
}
return ret;
}
static int
libxlDomainAttachDeviceConfig(virDomainDefPtr vmdef, virDomainDeviceDefPtr dev)
{
virDomainDiskDefPtr disk;
virDomainNetDefPtr net;
virDomainHostdevDefPtr hostdev;
virDomainControllerDefPtr controller;
virDomainHostdevDefPtr found;
char mac[VIR_MAC_STRING_BUFLEN];
switch (dev->type) {
case VIR_DOMAIN_DEVICE_DISK:
disk = dev->data.disk;
if (virDomainDiskIndexByName(vmdef, disk->dst, true) >= 0) {
virReportError(VIR_ERR_INVALID_ARG,
_("target %s already exists."), disk->dst);
return -1;
}
if (virDomainDiskInsert(vmdef, disk) < 0)
return -1;
/* vmdef has the pointer. Generic codes for vmdef will do all jobs */
dev->data.disk = NULL;
break;
case VIR_DOMAIN_DEVICE_CONTROLLER:
controller = dev->data.controller;
if (controller->idx != -1 &&
virDomainControllerFind(vmdef, controller->type,
controller->idx) >= 0) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("Target already exists"));
return -1;
}
if (virDomainControllerInsert(vmdef, controller) < 0)
return -1;
dev->data.controller = NULL;
break;
case VIR_DOMAIN_DEVICE_NET:
net = dev->data.net;
if (virDomainHasNet(vmdef, net)) {
virReportError(VIR_ERR_INVALID_ARG,
_("network device with mac %s already exists"),
virMacAddrFormat(&net->mac, mac));
return -1;
}
if (virDomainNetInsert(vmdef, net))
return -1;
dev->data.net = NULL;
break;
case VIR_DOMAIN_DEVICE_HOSTDEV:
hostdev = dev->data.hostdev;
switch (hostdev->source.subsys.type) {
case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI:
#ifndef LIBXL_HAVE_PVUSB
case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB:
#endif
case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_LAST:
return -1;
}
if (virDomainHostdevFind(vmdef, hostdev, &found) >= 0) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("device is already in the domain configuration"));
return -1;
}
if (virDomainHostdevInsert(vmdef, hostdev) < 0)
return -1;
dev->data.hostdev = NULL;
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("persistent attach of device is not supported"));
return -1;
}
return 0;
}
static int
libxlComparePCIDevice(virDomainDefPtr def G_GNUC_UNUSED,
virDomainDeviceDefPtr device G_GNUC_UNUSED,
virDomainDeviceInfoPtr info1,
void *opaque)
{
virDomainDeviceInfoPtr info2 = opaque;
if (info1->type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI ||
info2->type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI)
return 0;
if (info1->addr.pci.domain == info2->addr.pci.domain &&
info1->addr.pci.bus == info2->addr.pci.bus &&
info1->addr.pci.slot == info2->addr.pci.slot &&
info1->addr.pci.function != info2->addr.pci.function)
return -1;
return 0;
}
static bool
libxlIsMultiFunctionDevice(virDomainDefPtr def,
virDomainDeviceInfoPtr dev)
{
if (virDomainDeviceInfoIterate(def, libxlComparePCIDevice, dev) < 0)
return true;
return false;
}
static int
libxlDomainDetachHostPCIDevice(libxlDriverPrivatePtr driver,
virDomainObjPtr vm,
virDomainHostdevDefPtr hostdev)
{
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainHostdevSubsysPtr subsys = &hostdev->source.subsys;
virDomainHostdevSubsysPCIPtr pcisrc = &subsys->u.pci;
libxl_device_pci pcidev;
virDomainHostdevDefPtr detach;
int idx;
virHostdevManagerPtr hostdev_mgr = driver->hostdevMgr;
int ret = -1;
libxl_device_pci_init(&pcidev);
idx = virDomainHostdevFind(vm->def, hostdev, &detach);
if (idx < 0) {
virReportError(VIR_ERR_OPERATION_FAILED,
_("host pci device " VIR_PCI_DEVICE_ADDRESS_FMT
" not found"),
pcisrc->addr.domain, pcisrc->addr.bus,
pcisrc->addr.slot, pcisrc->addr.function);
goto cleanup;
}
if (libxlIsMultiFunctionDevice(vm->def, detach->info)) {
virReportError(VIR_ERR_OPERATION_FAILED,
_("cannot hot unplug multifunction PCI device: "
VIR_PCI_DEVICE_ADDRESS_FMT),
pcisrc->addr.domain, pcisrc->addr.bus,
pcisrc->addr.slot, pcisrc->addr.function);
goto error;
}
if (libxlMakePCI(detach, &pcidev) < 0)
goto error;
if (libxl_device_pci_remove(cfg->ctx, vm->def->id, &pcidev, 0) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("libxenlight failed to detach pci device "
VIR_PCI_DEVICE_ADDRESS_FMT),
pcisrc->addr.domain, pcisrc->addr.bus,
pcisrc->addr.slot, pcisrc->addr.function);
goto error;
}
virDomainHostdevRemove(vm->def, idx);
virHostdevReAttachPCIDevices(hostdev_mgr, LIBXL_DRIVER_NAME,
vm->def->name, &hostdev, 1, NULL);
ret = 0;
error:
virDomainHostdevDefFree(detach);
cleanup:
virObjectUnref(cfg);
libxl_device_pci_dispose(&pcidev);
return ret;
}
#ifdef LIBXL_HAVE_PVUSB
static int
libxlDomainDetachControllerDevice(libxlDriverPrivatePtr driver,
virDomainObjPtr vm,
virDomainDeviceDefPtr dev)
{
int idx, ret = -1;
virDomainControllerDefPtr detach = NULL;
virDomainControllerDefPtr controller = dev->data.controller;
const char *type = virDomainControllerTypeToString(controller->type);
libxl_device_usbctrl usbctrl;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
libxl_device_usbctrl_init(&usbctrl);
if (controller->type != VIR_DOMAIN_CONTROLLER_TYPE_USB) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
_("'%s' controller cannot be hot plugged."),
type);
goto cleanup;
}
if ((idx = virDomainControllerFind(vm->def,
controller->type,
controller->idx)) < 0) {
virReportError(VIR_ERR_OPERATION_FAILED,
_("controller %s:%d not found"),
type, controller->idx);
goto cleanup;
}
detach = vm->def->controllers[idx];
if (libxlMakeUSBController(controller, &usbctrl) < 0)
goto cleanup;
if (libxl_device_usbctrl_remove(cfg->ctx, vm->def->id, &usbctrl, 0) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("libxenlight failed to detach USB controller"));
goto cleanup;
}
virDomainControllerRemove(vm->def, idx);
ret = 0;
cleanup:
virDomainControllerDefFree(detach);
virObjectUnref(cfg);
libxl_device_usbctrl_dispose(&usbctrl);
return ret;
}
static int
libxlDomainDetachHostUSBDevice(libxlDriverPrivatePtr driver,
virDomainObjPtr vm,
virDomainHostdevDefPtr hostdev)
{
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainHostdevSubsysPtr subsys = &hostdev->source.subsys;
virDomainHostdevSubsysUSBPtr usbsrc = &subsys->u.usb;
virHostdevManagerPtr hostdev_mgr = driver->hostdevMgr;
libxl_device_usbdev usbdev;
libxl_device_usbdev *usbdevs = NULL;
int num = 0;
virDomainHostdevDefPtr detach;
int idx;
size_t i;
bool found = false;
int ret = -1;
libxl_device_usbdev_init(&usbdev);
idx = virDomainHostdevFind(vm->def, hostdev, &detach);
if (idx < 0) {
virReportError(VIR_ERR_OPERATION_FAILED,
_("host USB device Busnum: %3x, Devnum: %3x not found"),
usbsrc->bus, usbsrc->device);
goto cleanup;
}
usbdevs = libxl_device_usbdev_list(cfg->ctx, vm->def->id, &num);
for (i = 0; i < num; i++) {
if (usbdevs[i].u.hostdev.hostbus == usbsrc->bus &&
usbdevs[i].u.hostdev.hostaddr == usbsrc->device) {
libxl_device_usbdev_copy(cfg->ctx, &usbdev, &usbdevs[i]);
found = true;
break;
}
}
libxl_device_usbdev_list_free(usbdevs, num);
if (!found) {
virReportError(VIR_ERR_OPERATION_FAILED,
_("host USB device Busnum: %3x, Devnum: %3x not found"),
usbsrc->bus, usbsrc->device);
goto cleanup;
}
if (libxl_device_usbdev_remove(cfg->ctx, vm->def->id, &usbdev, 0) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("libxenlight failed to detach USB device "
"Busnum: %3x, Devnum: %3x"),
usbsrc->bus, usbsrc->device);
goto cleanup;
}
virDomainHostdevRemove(vm->def, idx);
virHostdevReAttachUSBDevices(hostdev_mgr, LIBXL_DRIVER_NAME,
vm->def->name, &hostdev, 1);
ret = 0;
cleanup:
virDomainHostdevDefFree(detach);
virObjectUnref(cfg);
libxl_device_usbdev_dispose(&usbdev);
return ret;
}
#endif
static int
libxlDomainDetachHostDevice(libxlDriverPrivatePtr driver,
virDomainObjPtr vm,
virDomainHostdevDefPtr hostdev)
{
virDomainHostdevSubsysPtr subsys = &hostdev->source.subsys;
if (hostdev->mode != VIR_DOMAIN_HOSTDEV_MODE_SUBSYS) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("hostdev mode '%s' not supported"),
virDomainHostdevModeTypeToString(hostdev->mode));
return -1;
}
switch (subsys->type) {
case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI:
return libxlDomainDetachHostPCIDevice(driver, vm, hostdev);
#ifdef LIBXL_HAVE_PVUSB
case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB:
return libxlDomainDetachHostUSBDevice(driver, vm, hostdev);
#endif
default:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unexpected hostdev type %d"), subsys->type);
break;
}
return -1;
}
static int
libxlDomainDetachNetDevice(libxlDriverPrivatePtr driver,
virDomainObjPtr vm,
virDomainNetDefPtr net)
{
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
int detachidx;
virDomainNetDefPtr detach = NULL;
libxl_device_nic nic;
char mac[VIR_MAC_STRING_BUFLEN];
int ret = -1;
virErrorPtr save_err = NULL;
libxl_device_nic_init(&nic);
if ((detachidx = virDomainNetFindIdx(vm->def, net)) < 0)
goto cleanup;
detach = vm->def->nets[detachidx];
if (virDomainNetGetActualType(detach) == VIR_DOMAIN_NET_TYPE_HOSTDEV) {
/* This is really a "smart hostdev", so it should be attached as a
* hostdev, then also removed from nets list (see out:) if successful.
*/
ret = libxlDomainDetachHostDevice(driver, vm,
virDomainNetGetActualHostdev(detach));
goto cleanup;
}
if (libxl_mac_to_device_nic(cfg->ctx, vm->def->id,
virMacAddrFormat(&detach->mac, mac), &nic))
goto cleanup;
if (libxl_device_nic_remove(cfg->ctx, vm->def->id, &nic, 0)) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("libxenlight failed to detach network device"));
goto cleanup;
}
ret = 0;
cleanup:
virErrorPreserveLast(&save_err);
libxl_device_nic_dispose(&nic);
if (!ret) {
if (detach->type == VIR_DOMAIN_NET_TYPE_NETWORK) {
virConnectPtr conn = virGetConnectNetwork();
if (conn) {
virDomainNetReleaseActualDevice(conn, vm->def, detach);
virObjectUnref(conn);
} else {
VIR_WARN("Unable to release network device '%s'", NULLSTR(detach->ifname));
}
}
virDomainNetRemove(vm->def, detachidx);
}
virObjectUnref(cfg);
virErrorRestore(&save_err);
return ret;
}
static int
libxlDomainDetachDeviceLive(libxlDriverPrivatePtr driver,
virDomainObjPtr vm,
virDomainDeviceDefPtr dev)
{
virDomainHostdevDefPtr hostdev;
int ret = -1;
switch (dev->type) {
case VIR_DOMAIN_DEVICE_DISK:
ret = libxlDomainDetachDeviceDiskLive(vm, dev);
break;
#ifdef LIBXL_HAVE_PVUSB
case VIR_DOMAIN_DEVICE_CONTROLLER:
ret = libxlDomainDetachControllerDevice(driver, vm, dev);
break;
#endif
case VIR_DOMAIN_DEVICE_NET:
ret = libxlDomainDetachNetDevice(driver, vm,
dev->data.net);
break;
case VIR_DOMAIN_DEVICE_HOSTDEV:
hostdev = dev->data.hostdev;
/* If this is a network hostdev, we need to use the higher-level
* detach function so that mac address / virtualport are reset
*/
if (hostdev->parentnet)
ret = libxlDomainDetachNetDevice(driver, vm,
hostdev->parentnet);
else
ret = libxlDomainDetachHostDevice(driver, vm, hostdev);
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("device type '%s' cannot be detached"),
virDomainDeviceTypeToString(dev->type));
break;
}
return ret;
}
static int
libxlDomainDetachDeviceConfig(virDomainDefPtr vmdef, virDomainDeviceDefPtr dev)
{
virDomainDiskDefPtr disk, detach;
virDomainHostdevDefPtr hostdev, det_hostdev;
virDomainControllerDefPtr cont, det_cont;
virDomainNetDefPtr net;
int idx;
switch (dev->type) {
case VIR_DOMAIN_DEVICE_DISK:
disk = dev->data.disk;
if (!(detach = virDomainDiskRemoveByName(vmdef, disk->dst))) {
virReportError(VIR_ERR_INVALID_ARG,
_("no target device %s"), disk->dst);
return -1;
}
virDomainDiskDefFree(detach);
break;
case VIR_DOMAIN_DEVICE_CONTROLLER:
cont = dev->data.controller;
if ((idx = virDomainControllerFind(vmdef, cont->type,
cont->idx)) < 0) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("device not present in domain configuration"));
return -1;
}
det_cont = virDomainControllerRemove(vmdef, idx);
virDomainControllerDefFree(det_cont);
break;
case VIR_DOMAIN_DEVICE_NET:
net = dev->data.net;
if ((idx = virDomainNetFindIdx(vmdef, net)) < 0)
return -1;
/* this is guaranteed to succeed */
virDomainNetDefFree(virDomainNetRemove(vmdef, idx));
break;
case VIR_DOMAIN_DEVICE_HOSTDEV: {
hostdev = dev->data.hostdev;
if ((idx = virDomainHostdevFind(vmdef, hostdev, &det_hostdev)) < 0) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("device not present in domain configuration"));
return -1;
}
virDomainHostdevRemove(vmdef, idx);
virDomainHostdevDefFree(det_hostdev);
break;
}
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("persistent detach of device is not supported"));
return -1;
}
return 0;
}
static int
libxlDomainUpdateDeviceLive(virDomainObjPtr vm, virDomainDeviceDefPtr dev)
{
virDomainDiskDefPtr disk;
int ret = -1;
switch (dev->type) {
case VIR_DOMAIN_DEVICE_DISK:
disk = dev->data.disk;
switch (disk->device) {
case VIR_DOMAIN_DISK_DEVICE_CDROM:
ret = libxlDomainChangeEjectableMedia(vm, disk);
if (ret == 0)
dev->data.disk = NULL;
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("disk bus '%s' cannot be updated."),
virDomainDiskBusTypeToString(disk->bus));
break;
}
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("device type '%s' cannot be updated"),
virDomainDeviceTypeToString(dev->type));
break;
}
return ret;
}
static int
libxlDomainUpdateDeviceConfig(virDomainDefPtr vmdef, virDomainDeviceDefPtr dev)
{
virDomainDiskDefPtr orig;
virDomainDiskDefPtr disk;
switch (dev->type) {
case VIR_DOMAIN_DEVICE_DISK:
disk = dev->data.disk;
if (!(orig = virDomainDiskByTarget(vmdef, disk->dst))) {
virReportError(VIR_ERR_INVALID_ARG,
_("target %s doesn't exist."), disk->dst);
return -1;
}
if (!(orig->device == VIR_DOMAIN_DISK_DEVICE_CDROM)) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("this disk doesn't support update"));
return -1;
}
if (virDomainDiskSetSource(orig, virDomainDiskGetSource(disk)) < 0)
return -1;
virDomainDiskSetType(orig, virDomainDiskGetType(disk));
virDomainDiskSetFormat(orig, virDomainDiskGetFormat(disk));
if (virDomainDiskSetDriver(orig, virDomainDiskGetDriver(disk)) < 0)
return -1;
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("persistent update of device is not supported"));
return -1;
}
return 0;
}
static int
libxlDomainAttachDeviceFlags(virDomainPtr dom, const char *xml,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainObjPtr vm = NULL;
virDomainDefPtr vmdef = NULL;
virDomainDeviceDefPtr dev = NULL;
int ret = -1;
virCheckFlags(VIR_DOMAIN_DEVICE_MODIFY_LIVE |
VIR_DOMAIN_DEVICE_MODIFY_CONFIG, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainAttachDeviceFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjUpdateModificationImpact(vm, &flags) < 0)
goto endjob;
if (flags & VIR_DOMAIN_DEVICE_MODIFY_CONFIG) {
if (!(dev = virDomainDeviceDefParse(xml, vm->def,
cfg->caps, driver->xmlopt, NULL,
VIR_DOMAIN_DEF_PARSE_INACTIVE)))
goto endjob;
/* Make a copy for updated domain. */
if (!(vmdef = virDomainObjCopyPersistentDef(vm, cfg->caps,
driver->xmlopt, NULL)))
goto endjob;
if (libxlDomainAttachDeviceConfig(vmdef, dev) < 0)
goto endjob;
}
if (flags & VIR_DOMAIN_DEVICE_MODIFY_LIVE) {
/* If dev exists it was created to modify the domain config. Free it. */
virDomainDeviceDefFree(dev);
if (!(dev = virDomainDeviceDefParse(xml, vm->def,
cfg->caps, driver->xmlopt, NULL,
VIR_DOMAIN_DEF_PARSE_INACTIVE)))
goto endjob;
if (libxlDomainAttachDeviceLive(driver, vm, dev) < 0)
goto endjob;
/*
* update domain status forcibly because the domain status may be
* changed even if we attach the device failed.
*/
if (virDomainSaveStatus(driver->xmlopt, cfg->stateDir, vm, cfg->caps) < 0)
goto endjob;
}
ret = 0;
/* Finally, if no error until here, we can save config. */
if (flags & VIR_DOMAIN_DEVICE_MODIFY_CONFIG) {
ret = virDomainSaveConfig(cfg->configDir, cfg->caps, vmdef);
if (!ret) {
virDomainObjAssignDef(vm, vmdef, false, NULL);
vmdef = NULL;
}
}
endjob:
libxlDomainObjEndJob(driver, vm);
cleanup:
virDomainDefFree(vmdef);
virDomainDeviceDefFree(dev);
virDomainObjEndAPI(&vm);
virObjectUnref(cfg);
return ret;
}
static int
libxlDomainAttachDevice(virDomainPtr dom, const char *xml)
{
return libxlDomainAttachDeviceFlags(dom, xml,
VIR_DOMAIN_DEVICE_MODIFY_LIVE);
}
static int
libxlDomainDetachDeviceFlags(virDomainPtr dom, const char *xml,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainObjPtr vm = NULL;
virDomainDefPtr vmdef = NULL;
virDomainDeviceDefPtr dev = NULL;
int ret = -1;
virCheckFlags(VIR_DOMAIN_DEVICE_MODIFY_LIVE |
VIR_DOMAIN_DEVICE_MODIFY_CONFIG, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainDetachDeviceFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjUpdateModificationImpact(vm, &flags) < 0)
goto endjob;
if (flags & VIR_DOMAIN_DEVICE_MODIFY_CONFIG) {
if (!(dev = virDomainDeviceDefParse(xml, vm->def,
cfg->caps, driver->xmlopt, NULL,
VIR_DOMAIN_DEF_PARSE_INACTIVE |
VIR_DOMAIN_DEF_PARSE_SKIP_VALIDATE)))
goto endjob;
/* Make a copy for updated domain. */
if (!(vmdef = virDomainObjCopyPersistentDef(vm, cfg->caps,
driver->xmlopt, NULL)))
goto endjob;
if (libxlDomainDetachDeviceConfig(vmdef, dev) < 0)
goto endjob;
}
if (flags & VIR_DOMAIN_DEVICE_MODIFY_LIVE) {
/* If dev exists it was created to modify the domain config. Free it. */
virDomainDeviceDefFree(dev);
if (!(dev = virDomainDeviceDefParse(xml, vm->def,
cfg->caps, driver->xmlopt, NULL,
VIR_DOMAIN_DEF_PARSE_INACTIVE |
VIR_DOMAIN_DEF_PARSE_SKIP_VALIDATE)))
goto endjob;
if (libxlDomainDetachDeviceLive(driver, vm, dev) < 0)
goto endjob;
/*
* update domain status forcibly because the domain status may be
* changed even if we attach the device failed.
*/
if (virDomainSaveStatus(driver->xmlopt, cfg->stateDir, vm, cfg->caps) < 0)
goto endjob;
}
ret = 0;
/* Finally, if no error until here, we can save config. */
if (flags & VIR_DOMAIN_DEVICE_MODIFY_CONFIG) {
ret = virDomainSaveConfig(cfg->configDir, cfg->caps, vmdef);
if (!ret) {
virDomainObjAssignDef(vm, vmdef, false, NULL);
vmdef = NULL;
}
}
endjob:
libxlDomainObjEndJob(driver, vm);
cleanup:
virDomainDefFree(vmdef);
virDomainDeviceDefFree(dev);
virDomainObjEndAPI(&vm);
virObjectUnref(cfg);
return ret;
}
static int
libxlDomainDetachDevice(virDomainPtr dom, const char *xml)
{
return libxlDomainDetachDeviceFlags(dom, xml,
VIR_DOMAIN_DEVICE_MODIFY_LIVE);
}
static int
libxlDomainUpdateDeviceFlags(virDomainPtr dom, const char *xml,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainObjPtr vm = NULL;
virDomainDefPtr vmdef = NULL;
virDomainDeviceDefPtr dev = NULL;
int ret = -1;
virCheckFlags(VIR_DOMAIN_DEVICE_MODIFY_LIVE |
VIR_DOMAIN_DEVICE_MODIFY_CONFIG, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainUpdateDeviceFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (virDomainObjUpdateModificationImpact(vm, &flags) < 0)
goto cleanup;
if (flags & VIR_DOMAIN_DEVICE_MODIFY_CONFIG) {
if (!(dev = virDomainDeviceDefParse(xml, vm->def,
cfg->caps, driver->xmlopt, NULL,
VIR_DOMAIN_DEF_PARSE_INACTIVE)))
goto cleanup;
/* Make a copy for updated domain. */
if (!(vmdef = virDomainObjCopyPersistentDef(vm, cfg->caps,
driver->xmlopt, NULL)))
goto cleanup;
if ((ret = libxlDomainUpdateDeviceConfig(vmdef, dev)) < 0)
goto cleanup;
} else {
ret = 0;
}
if (flags & VIR_DOMAIN_DEVICE_MODIFY_LIVE) {
/* If dev exists it was created to modify the domain config. Free it. */
virDomainDeviceDefFree(dev);
if (!(dev = virDomainDeviceDefParse(xml, vm->def,
cfg->caps, driver->xmlopt, NULL,
VIR_DOMAIN_DEF_PARSE_INACTIVE)))
goto cleanup;
if ((ret = libxlDomainUpdateDeviceLive(vm, dev)) < 0)
goto cleanup;
/*
* update domain status forcibly because the domain status may be
* changed even if we attach the device failed.
*/
if (virDomainSaveStatus(driver->xmlopt, cfg->stateDir, vm, cfg->caps) < 0)
ret = -1;
}
/* Finally, if no error until here, we can save config. */
if (!ret && (flags & VIR_DOMAIN_DEVICE_MODIFY_CONFIG)) {
ret = virDomainSaveConfig(cfg->configDir, cfg->caps, vmdef);
if (!ret) {
virDomainObjAssignDef(vm, vmdef, false, NULL);
vmdef = NULL;
}
}
cleanup:
virDomainDefFree(vmdef);
virDomainDeviceDefFree(dev);
virDomainObjEndAPI(&vm);
virObjectUnref(cfg);
return ret;
}
static unsigned long long
libxlNodeGetFreeMemory(virConnectPtr conn)
{
libxl_physinfo phy_info;
libxlDriverPrivatePtr driver = conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
unsigned long long ret = 0;
libxl_physinfo_init(&phy_info);
if (virNodeGetFreeMemoryEnsureACL(conn) < 0)
goto cleanup;
if (libxl_get_physinfo(cfg->ctx, &phy_info)) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("libxl_get_physinfo_info failed"));
goto cleanup;
}
ret = phy_info.free_pages * cfg->verInfo->pagesize;
cleanup:
libxl_physinfo_dispose(&phy_info);
virObjectUnref(cfg);
return ret;
}
static int
libxlNodeGetCellsFreeMemory(virConnectPtr conn,
unsigned long long *freeMems,
int startCell,
int maxCells)
{
int n, lastCell, numCells;
int ret = -1, nr_nodes = 0;
libxl_numainfo *numa_info = NULL;
libxlDriverPrivatePtr driver = conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
if (virNodeGetCellsFreeMemoryEnsureACL(conn) < 0)
goto cleanup;
numa_info = libxl_get_numainfo(cfg->ctx, &nr_nodes);
if (numa_info == NULL || nr_nodes == 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("libxl_get_numainfo failed"));
goto cleanup;
}
/* Check/sanitize the cell range */
if (startCell >= nr_nodes) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("start cell %d out of range (0-%d)"),
startCell, nr_nodes - 1);
goto cleanup;
}
lastCell = startCell + maxCells - 1;
if (lastCell >= nr_nodes)
lastCell = nr_nodes - 1;
for (numCells = 0, n = startCell; n <= lastCell; n++) {
if (numa_info[n].size == LIBXL_NUMAINFO_INVALID_ENTRY)
freeMems[numCells++] = 0;
else
freeMems[numCells++] = numa_info[n].free;
}
ret = numCells;
cleanup:
libxl_numainfo_list_free(numa_info, nr_nodes);
virObjectUnref(cfg);
return ret;
}
static int
libxlConnectDomainEventRegister(virConnectPtr conn,
virConnectDomainEventCallback callback,
void *opaque,
virFreeCallback freecb)
{
libxlDriverPrivatePtr driver = conn->privateData;
if (virConnectDomainEventRegisterEnsureACL(conn) < 0)
return -1;
if (virDomainEventStateRegister(conn,
driver->domainEventState,
callback, opaque, freecb) < 0)
return -1;
return 0;
}
static int
libxlConnectDomainEventDeregister(virConnectPtr conn,
virConnectDomainEventCallback callback)
{
libxlDriverPrivatePtr driver = conn->privateData;
if (virConnectDomainEventDeregisterEnsureACL(conn) < 0)
return -1;
if (virDomainEventStateDeregister(conn,
driver->domainEventState,
callback) < 0)
return -1;
return 0;
}
static int
libxlDomainGetAutostart(virDomainPtr dom, int *autostart)
{
virDomainObjPtr vm;
int ret = -1;
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainGetAutostartEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
*autostart = vm->autostart;
ret = 0;
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
libxlDomainSetAutostart(virDomainPtr dom, int autostart)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainObjPtr vm;
char *configFile = NULL, *autostartLink = NULL;
int ret = -1;
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
LIBXL_CHECK_DOM0_GOTO(vm->def->name, cleanup);
if (virDomainSetAutostartEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
goto cleanup;
if (!vm->persistent) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("cannot set autostart for transient domain"));
goto endjob;
}
autostart = (autostart != 0);
if (vm->autostart != autostart) {
if (!(configFile = virDomainConfigFile(cfg->configDir, vm->def->name)))
goto endjob;
if (!(autostartLink = virDomainConfigFile(cfg->autostartDir, vm->def->name)))
goto endjob;
if (autostart) {
if (virFileMakePath(cfg->autostartDir) < 0) {
virReportSystemError(errno,
_("cannot create autostart directory %s"),
cfg->autostartDir);
goto endjob;
}
if (symlink(configFile, autostartLink) < 0) {
virReportSystemError(errno,
_("Failed to create symlink '%s to '%s'"),
autostartLink, configFile);
goto endjob;
}
} else {
if (unlink(autostartLink) < 0 && errno != ENOENT && errno != ENOTDIR) {
virReportSystemError(errno,
_("Failed to delete symlink '%s'"),
autostartLink);
goto endjob;
}
}
vm->autostart = autostart;
}
ret = 0;
endjob:
libxlDomainObjEndJob(driver, vm);
cleanup:
VIR_FREE(configFile);
VIR_FREE(autostartLink);
virDomainObjEndAPI(&vm);
virObjectUnref(cfg);
return ret;
}
static char *
libxlDomainGetSchedulerType(virDomainPtr dom, int *nparams)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainObjPtr vm;
char * ret = NULL;
const char *name = NULL;
libxl_scheduler sched_id;
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainGetSchedulerTypeEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto cleanup;
sched_id = libxl_get_scheduler(cfg->ctx);
if (nparams)
*nparams = 0;
switch ((int)sched_id) {
case LIBXL_SCHEDULER_SEDF:
name = "sedf";
break;
case LIBXL_SCHEDULER_CREDIT:
name = "credit";
if (nparams)
*nparams = XEN_SCHED_CREDIT_NPARAM;
break;
case LIBXL_SCHEDULER_CREDIT2:
name = "credit2";
break;
case LIBXL_SCHEDULER_ARINC653:
name = "arinc653";
break;
default:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to get scheduler id for domain '%d'"
" with libxenlight"), vm->def->id);
goto cleanup;
}
ret = g_strdup(name);
cleanup:
virDomainObjEndAPI(&vm);
virObjectUnref(cfg);
return ret;
}
static int
libxlDomainGetSchedulerParametersFlags(virDomainPtr dom,
virTypedParameterPtr params,
int *nparams,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainObjPtr vm;
libxl_domain_sched_params sc_info;
libxl_scheduler sched_id;
int ret = -1;
virCheckFlags(VIR_TYPED_PARAM_STRING_OKAY, -1);
/* We don't return strings, and thus trivially support this flag. */
flags &= ~VIR_TYPED_PARAM_STRING_OKAY;
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainGetSchedulerParametersFlagsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto cleanup;
sched_id = libxl_get_scheduler(cfg->ctx);
if (sched_id != LIBXL_SCHEDULER_CREDIT) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Only 'credit' scheduler is supported"));
goto cleanup;
}
if (libxl_domain_sched_params_get(cfg->ctx, vm->def->id, &sc_info) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to get scheduler parameters for domain '%d'"
" with libxenlight"), vm->def->id);
goto cleanup;
}
if (virTypedParameterAssign(&params[0], VIR_DOMAIN_SCHEDULER_WEIGHT,
VIR_TYPED_PARAM_UINT, sc_info.weight) < 0)
goto cleanup;
if (*nparams > 1) {
if (virTypedParameterAssign(&params[1], VIR_DOMAIN_SCHEDULER_CAP,
VIR_TYPED_PARAM_UINT, sc_info.cap) < 0)
goto cleanup;
}
if (*nparams > XEN_SCHED_CREDIT_NPARAM)
*nparams = XEN_SCHED_CREDIT_NPARAM;
ret = 0;
cleanup:
virDomainObjEndAPI(&vm);
virObjectUnref(cfg);
return ret;
}
static int
libxlDomainGetSchedulerParameters(virDomainPtr dom, virTypedParameterPtr params,
int *nparams)
{
return libxlDomainGetSchedulerParametersFlags(dom, params, nparams, 0);
}
static int
libxlDomainSetSchedulerParametersFlags(virDomainPtr dom,
virTypedParameterPtr params,
int nparams,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainObjPtr vm;
libxl_domain_sched_params sc_info;
int sched_id;
size_t i;
int ret = -1;
virCheckFlags(0, -1);
if (virTypedParamsValidate(params, nparams,
VIR_DOMAIN_SCHEDULER_WEIGHT,
VIR_TYPED_PARAM_UINT,
VIR_DOMAIN_SCHEDULER_CAP,
VIR_TYPED_PARAM_UINT,
NULL) < 0)
return -1;
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainSetSchedulerParametersFlagsEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
sched_id = libxl_get_scheduler(cfg->ctx);
if (sched_id != LIBXL_SCHEDULER_CREDIT) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Only 'credit' scheduler is supported"));
goto endjob;
}
if (libxl_domain_sched_params_get(cfg->ctx, vm->def->id, &sc_info) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to get scheduler parameters for domain '%d'"
" with libxenlight"), vm->def->id);
goto endjob;
}
for (i = 0; i < nparams; ++i) {
virTypedParameterPtr param = &params[i];
if (STREQ(param->field, VIR_DOMAIN_SCHEDULER_WEIGHT))
sc_info.weight = params[i].value.ui;
else if (STREQ(param->field, VIR_DOMAIN_SCHEDULER_CAP))
sc_info.cap = params[i].value.ui;
}
if (libxl_domain_sched_params_set(cfg->ctx, vm->def->id, &sc_info) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to set scheduler parameters for domain '%d'"
" with libxenlight"), vm->def->id);
goto endjob;
}
ret = 0;
endjob:
libxlDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
virObjectUnref(cfg);
return ret;
}
static int
libxlDomainOpenConsole(virDomainPtr dom,
const char *dev_name,
virStreamPtr st,
unsigned int flags)
{
virDomainObjPtr vm = NULL;
int ret = -1;
virDomainChrDefPtr chr = NULL;
libxlDomainObjPrivatePtr priv;
virCheckFlags(VIR_DOMAIN_CONSOLE_FORCE, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
LIBXL_CHECK_DOM0_GOTO(vm->def->name, cleanup);
if (virDomainOpenConsoleEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto cleanup;
priv = vm->privateData;
if (dev_name) {
size_t i;
for (i = 0; !chr && i < vm->def->nserials; i++) {
if (STREQ(dev_name, vm->def->serials[i]->info.alias)) {
chr = vm->def->serials[i];
break;
}
}
} else if (vm->def->nconsoles) {
chr = vm->def->consoles[0];
if (chr->targetType == VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SERIAL)
chr = vm->def->serials[0];
}
if (!chr) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot find character device %s"),
NULLSTR(dev_name));
goto cleanup;
}
if (chr->source->type != VIR_DOMAIN_CHR_TYPE_PTY) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("character device %s is not using a PTY"),
dev_name ? dev_name : NULLSTR(chr->info.alias));
goto cleanup;
}
/* handle mutually exclusive access to console devices */
ret = virChrdevOpen(priv->devs,
chr->source,
st,
(flags & VIR_DOMAIN_CONSOLE_FORCE) != 0);
if (ret == 1) {
virReportError(VIR_ERR_OPERATION_FAILED, "%s",
_("Active console session exists for this domain"));
ret = -1;
}
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
libxlDomainSetSchedulerParameters(virDomainPtr dom, virTypedParameterPtr params,
int nparams)
{
return libxlDomainSetSchedulerParametersFlags(dom, params, nparams, 0);
}
/* NUMA node affinity information is available through libxl
* starting from Xen 4.3. */
#ifdef LIBXL_HAVE_DOMAIN_NODEAFFINITY
/* Number of Xen NUMA parameters */
# define LIBXL_NUMA_NPARAM 2
static int
libxlDomainGetNumaParameters(virDomainPtr dom,
virTypedParameterPtr params,
int *nparams,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
virDomainObjPtr vm;
libxl_bitmap nodemap;
virBitmapPtr nodes = NULL;
char *nodeset = NULL;
int rc, ret = -1;
size_t i, j;
/* In Xen 4.3, it is possible to query the NUMA node affinity of a domain
* via libxl, but not to change it. We therefore only allow AFFECT_LIVE. */
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_TYPED_PARAM_STRING_OKAY, -1);
/* We blindly return a string, and let libvirt.c and remote_driver.c do
* the filtering on behalf of older clients that can't parse it. */
flags &= ~VIR_TYPED_PARAM_STRING_OKAY;
libxl_bitmap_init(&nodemap);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainGetNumaParametersEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto cleanup;
if ((*nparams) == 0) {
*nparams = LIBXL_NUMA_NPARAM;
ret = 0;
goto cleanup;
}
for (i = 0; i < LIBXL_NUMA_NPARAM && i < *nparams; i++) {
virMemoryParameterPtr param = &params[i];
int numnodes;
switch (i) {
case 0:
/* NUMA mode */
/* Xen implements something that is really close to numactl's
* 'interleave' policy (see `man 8 numactl' for details). */
if (virTypedParameterAssign(param, VIR_DOMAIN_NUMA_MODE,
VIR_TYPED_PARAM_INT,
VIR_DOMAIN_NUMATUNE_MEM_INTERLEAVE) < 0)
goto cleanup;
break;
case 1:
/* Node affinity */
/* Let's allocate both libxl and libvirt bitmaps */
numnodes = libxl_get_max_nodes(cfg->ctx);
if (numnodes <= 0)
goto cleanup;
if (libxl_node_bitmap_alloc(cfg->ctx, &nodemap, 0)) {
virReportOOMError();
goto cleanup;
}
if (!(nodes = virBitmapNew(numnodes)))
goto cleanup;
rc = libxl_domain_get_nodeaffinity(cfg->ctx,
vm->def->id,
&nodemap);
if (rc != 0) {
virReportSystemError(-rc, "%s",
_("unable to get numa affinity"));
goto cleanup;
}
/* First, we convert libxl_bitmap into virBitmap. After that,
* we format virBitmap as a string that can be returned. */
virBitmapClearAll(nodes);
libxl_for_each_set_bit(j, nodemap) {
if (virBitmapSetBit(nodes, j)) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Node %zu out of range"), j);
goto cleanup;
}
}
if (!(nodeset = virBitmapFormat(nodes)))
goto cleanup;
if (virTypedParameterAssign(param, VIR_DOMAIN_NUMA_NODESET,
VIR_TYPED_PARAM_STRING, nodeset) < 0)
goto cleanup;
nodeset = NULL;
break;
}
}
if (*nparams > LIBXL_NUMA_NPARAM)
*nparams = LIBXL_NUMA_NPARAM;
ret = 0;
cleanup:
VIR_FREE(nodeset);
virBitmapFree(nodes);
libxl_bitmap_dispose(&nodemap);
virDomainObjEndAPI(&vm);
virObjectUnref(cfg);
return ret;
}
#endif
static int
libxlDomainIsActive(virDomainPtr dom)
{
virDomainObjPtr obj;
int ret = -1;
if (!(obj = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainIsActiveEnsureACL(dom->conn, obj->def) < 0)
goto cleanup;
ret = virDomainObjIsActive(obj);
cleanup:
virDomainObjEndAPI(&obj);
return ret;
}
static int
libxlDomainIsPersistent(virDomainPtr dom)
{
virDomainObjPtr obj;
int ret = -1;
if (!(obj = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainIsPersistentEnsureACL(dom->conn, obj->def) < 0)
goto cleanup;
ret = obj->persistent;
cleanup:
virDomainObjEndAPI(&obj);
return ret;
}
static int
libxlDomainIsUpdated(virDomainPtr dom)
{
virDomainObjPtr vm;
int ret = -1;
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainIsUpdatedEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
ret = vm->updated;
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
libxlDomainInterfaceStats(virDomainPtr dom,
const char *device,
virDomainInterfaceStatsPtr stats)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr vm;
virDomainNetDefPtr net = NULL;
int ret = -1;
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainInterfaceStatsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_QUERY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (!(net = virDomainNetFind(vm->def, device)))
goto endjob;
if (virNetDevTapInterfaceStats(net->ifname, stats,
!virDomainNetTypeSharesHostView(net)) < 0)
goto endjob;
ret = 0;
endjob:
libxlDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
libxlDomainGetTotalCPUStats(libxlDriverPrivatePtr driver,
virDomainObjPtr vm,
virTypedParameterPtr params,
unsigned int nparams)
{
libxlDriverConfigPtr cfg;
libxl_dominfo d_info;
int ret = -1;
if (nparams == 0)
return LIBXL_NB_TOTAL_CPU_STAT_PARAM;
libxl_dominfo_init(&d_info);
cfg = libxlDriverConfigGet(driver);
if (libxl_domain_info(cfg->ctx, &d_info, vm->def->id) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("libxl_domain_info failed for domain '%d'"),
vm->def->id);
goto cleanup;
}
if (virTypedParameterAssign(&params[0], VIR_DOMAIN_CPU_STATS_CPUTIME,
VIR_TYPED_PARAM_ULLONG, d_info.cpu_time) < 0)
goto cleanup;
ret = nparams;
cleanup:
libxl_dominfo_dispose(&d_info);
virObjectUnref(cfg);
return ret;
}
static int
libxlDomainGetPerCPUStats(libxlDriverPrivatePtr driver,
virDomainObjPtr vm,
virTypedParameterPtr params,
unsigned int nparams,
int start_cpu,
unsigned int ncpus)
{
libxl_vcpuinfo *vcpuinfo;
int maxcpu, hostcpus;
size_t i;
libxlDriverConfigPtr cfg;
int ret = -1;
if (nparams == 0 && ncpus != 0)
return LIBXL_NB_TOTAL_CPU_STAT_PARAM;
else if (nparams == 0)
return virDomainDefGetVcpusMax(vm->def);
cfg = libxlDriverConfigGet(driver);
if ((vcpuinfo = libxl_list_vcpu(cfg->ctx, vm->def->id, &maxcpu,
&hostcpus)) == NULL) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to list vcpus for domain '%d' with libxenlight"),
vm->def->id);
goto cleanup;
}
for (i = start_cpu; i < maxcpu && i < ncpus; ++i) {
if (virTypedParameterAssign(&params[(i-start_cpu)],
VIR_DOMAIN_CPU_STATS_CPUTIME,
VIR_TYPED_PARAM_ULLONG,
vcpuinfo[i].vcpu_time) < 0)
goto cleanup;
}
ret = nparams;
cleanup:
if (vcpuinfo)
libxl_vcpuinfo_list_free(vcpuinfo, maxcpu);
virObjectUnref(cfg);
return ret;
}
static int
libxlDomainGetCPUStats(virDomainPtr dom,
virTypedParameterPtr params,
unsigned int nparams,
int start_cpu,
unsigned int ncpus,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr vm = NULL;
int ret = -1;
virCheckFlags(VIR_TYPED_PARAM_STRING_OKAY, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainGetCPUStatsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto cleanup;
if (start_cpu == -1)
ret = libxlDomainGetTotalCPUStats(driver, vm, params, nparams);
else
ret = libxlDomainGetPerCPUStats(driver, vm, params, nparams,
start_cpu, ncpus);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
#define LIBXL_SET_MEMSTAT(TAG, VAL) \
if (i < nr_stats) { \
stats[i].tag = TAG; \
stats[i].val = VAL; \
i++; \
}
static int
libxlDomainMemoryStats(virDomainPtr dom,
virDomainMemoryStatPtr stats,
unsigned int nr_stats,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDriverConfigPtr cfg;
virDomainObjPtr vm;
libxl_dominfo d_info;
unsigned mem, maxmem;
size_t i = 0;
int ret = -1;
virCheckFlags(0, -1);
libxl_dominfo_init(&d_info);
cfg = libxlDriverConfigGet(driver);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainMemoryStatsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_QUERY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
if (libxl_domain_info(cfg->ctx, &d_info, vm->def->id) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("libxl_domain_info failed for domain '%d'"),
vm->def->id);
goto endjob;
}
mem = d_info.current_memkb;
maxmem = virDomainDefGetMemoryTotal(vm->def);
LIBXL_SET_MEMSTAT(VIR_DOMAIN_MEMORY_STAT_ACTUAL_BALLOON, mem);
LIBXL_SET_MEMSTAT(VIR_DOMAIN_MEMORY_STAT_AVAILABLE, maxmem);
ret = i;
endjob:
libxlDomainObjEndJob(driver, vm);
cleanup:
libxl_dominfo_dispose(&d_info);
virDomainObjEndAPI(&vm);
virObjectUnref(cfg);
return ret;
}
#undef LIBXL_SET_MEMSTAT
static int
libxlDomainGetJobInfo(virDomainPtr dom,
virDomainJobInfoPtr info)
{
libxlDomainObjPrivatePtr priv;
virDomainObjPtr vm;
int ret = -1;
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainGetJobInfoEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
priv = vm->privateData;
if (!priv->job.active) {
memset(info, 0, sizeof(*info));
info->type = VIR_DOMAIN_JOB_NONE;
ret = 0;
goto cleanup;
}
/* In libxl we don't have an estimated completion time
* thus we always set to unbounded and update time
* for the active job. */
if (libxlDomainJobUpdateTime(&priv->job) < 0)
goto cleanup;
memcpy(info, priv->job.current, sizeof(virDomainJobInfo));
ret = 0;
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
libxlDomainGetJobStats(virDomainPtr dom,
int *type,
virTypedParameterPtr *params,
int *nparams,
unsigned int flags)
{
libxlDomainObjPrivatePtr priv;
virDomainObjPtr vm;
virDomainJobInfoPtr jobInfo;
int ret = -1;
int maxparams = 0;
/* VIR_DOMAIN_JOB_STATS_COMPLETED not supported yet */
virCheckFlags(0, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainGetJobStatsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
priv = vm->privateData;
jobInfo = priv->job.current;
if (!priv->job.active) {
*type = VIR_DOMAIN_JOB_NONE;
*params = NULL;
*nparams = 0;
ret = 0;
goto cleanup;
}
/* In libxl we don't have an estimated completion time
* thus we always set to unbounded and update time
* for the active job. */
if (libxlDomainJobUpdateTime(&priv->job) < 0)
goto cleanup;
if (virTypedParamsAddULLong(params, nparams, &maxparams,
VIR_DOMAIN_JOB_TIME_ELAPSED,
jobInfo->timeElapsed) < 0)
goto cleanup;
*type = jobInfo->type;
ret = 0;
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
#ifdef __linux__
static int
libxlDiskPathToID(const char *virtpath)
{
static char const* drive_prefix[] = {"xvd", "hd", "sd"};
int disk, partition, chrused;
int fmt, id;
size_t i;
fmt = id = -1;
/* Find any disk prefixes we know about */
for (i = 0; i < G_N_ELEMENTS(drive_prefix); i++) {
if (STRPREFIX(virtpath, drive_prefix[i]) &&
!virDiskNameParse(virtpath, &disk, &partition)) {
fmt = i;
break;
}
}
/* Handle it same way as xvd */
if (fmt < 0 &&
(sscanf(virtpath, "d%ip%i%n", &disk, &partition, &chrused) >= 2
&& chrused == strlen(virtpath)))
fmt = 0;
/* Test indexes ranges and calculate the device id */
switch (fmt) {
case 0: /* xvd */
if (disk <= 15 && partition <= 15)
id = (202 << 8) | (disk << 4) | partition;
else if ((disk <= ((1<<20)-1)) || partition <= 255)
id = (1 << 28) | (disk << 8) | partition;
break;
case 1: /* hd */
if (disk <= 3 && partition <= 63)
id = ((disk < 2 ? 3 : 22) << 8) | ((disk & 1) << 6) | partition;
break;
case 2: /* sd */
if (disk <= 15 && (partition <= 15))
id = (8 << 8) | (disk << 4) | partition;
break;
default: /* invalid */
break;
}
return id;
}
# define LIBXL_VBD_SECTOR_SIZE 512
static int
libxlDiskSectorSize(int domid, int devno)
{
char *path, *val;
struct xs_handle *handle;
int ret = LIBXL_VBD_SECTOR_SIZE;
unsigned int len;
handle = xs_daemon_open_readonly();
if (!handle) {
VIR_WARN("cannot read sector size");
return ret;
}
path = val = NULL;
path = g_strdup_printf("/local/domain/%d/device/vbd/%d/backend", domid, devno);
if ((val = xs_read(handle, XBT_NULL, path, &len)) == NULL)
goto cleanup;
VIR_FREE(path);
path = g_strdup_printf("%s/physical-sector-size", val);
VIR_FREE(val);
if ((val = xs_read(handle, XBT_NULL, path, &len)) == NULL)
goto cleanup;
if (sscanf(val, "%d", &ret) != 1)
ret = LIBXL_VBD_SECTOR_SIZE;
cleanup:
VIR_FREE(val);
VIR_FREE(path);
xs_daemon_close(handle);
return ret;
}
static int
libxlDomainBlockStatsVBD(virDomainObjPtr vm,
const char *dev,
libxlBlockStatsPtr stats)
{
int ret = -1;
int devno = libxlDiskPathToID(dev);
int size;
char *path, *name, *val;
unsigned long long status;
path = name = val = NULL;
if (devno < 0) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("cannot find device number"));
return ret;
}
size = libxlDiskSectorSize(vm->def->id, devno);
stats->backend = g_strdup("vbd");
path = g_strdup_printf("/sys/bus/xen-backend/devices/vbd-%d-%d/statistics",
vm->def->id, devno);
if (!virFileExists(path)) {
virReportError(VIR_ERR_OPERATION_FAILED,
"%s", _("cannot open bus path"));
goto cleanup;
}
# define LIBXL_SET_VBDSTAT(FIELD, VAR, MUL) \
name = g_strdup_printf("%s/"FIELD, path); \
if ((virFileReadAll(name, 256, &val) < 0) || \
(sscanf(val, "%llu", &status) != 1)) { \
virReportError(VIR_ERR_OPERATION_FAILED, \
_("cannot read %s"), name); \
goto cleanup; \
} \
VAR += (status * MUL); \
VIR_FREE(name); \
VIR_FREE(val);
LIBXL_SET_VBDSTAT("f_req", stats->f_req, 1)
LIBXL_SET_VBDSTAT("wr_req", stats->wr_req, 1)
LIBXL_SET_VBDSTAT("rd_req", stats->rd_req, 1)
LIBXL_SET_VBDSTAT("wr_sect", stats->wr_bytes, size)
LIBXL_SET_VBDSTAT("rd_sect", stats->rd_bytes, size)
LIBXL_SET_VBDSTAT("ds_req", stats->u.vbd.ds_req, size)
LIBXL_SET_VBDSTAT("oo_req", stats->u.vbd.oo_req, 1)
ret = 0;
cleanup:
VIR_FREE(name);
VIR_FREE(path);
VIR_FREE(val);
# undef LIBXL_SET_VBDSTAT
return ret;
}
#else
static int
libxlDomainBlockStatsVBD(virDomainObjPtr vm G_GNUC_UNUSED,
const char *dev G_GNUC_UNUSED,
libxlBlockStatsPtr stats G_GNUC_UNUSED)
{
virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
"%s", _("platform unsupported"));
return -1;
}
#endif
static int
libxlDomainBlockStatsGatherSingle(virDomainObjPtr vm,
const char *path,
libxlBlockStatsPtr stats)
{
virDomainDiskDefPtr disk;
const char *disk_drv;
int ret = -1, disk_fmt;
if (!(disk = virDomainDiskByName(vm->def, path, false))) {
virReportError(VIR_ERR_OPERATION_INVALID,
_("invalid path: %s"), path);
return ret;
}
disk_fmt = virDomainDiskGetFormat(disk);
if (!(disk_drv = virDomainDiskGetDriver(disk)))
disk_drv = "qemu";
if (STREQ(disk_drv, "phy")) {
if (disk_fmt != VIR_STORAGE_FILE_RAW) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
_("unsupported format %s"),
virStorageFileFormatTypeToString(disk_fmt));
return ret;
}
ret = libxlDomainBlockStatsVBD(vm, disk->dst, stats);
} else {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
_("unsupported disk driver %s"),
disk_drv);
}
return ret;
}
static int
libxlDomainBlockStatsGather(virDomainObjPtr vm,
const char *path,
libxlBlockStatsPtr stats)
{
int ret = -1;
if (*path) {
if (libxlDomainBlockStatsGatherSingle(vm, path, stats) < 0)
return ret;
} else {
size_t i;
for (i = 0; i < vm->def->ndisks; ++i) {
if (libxlDomainBlockStatsGatherSingle(vm, vm->def->disks[i]->dst,
stats) < 0)
return ret;
}
}
return 0;
}
static int
libxlDomainBlockStats(virDomainPtr dom,
const char *path,
virDomainBlockStatsPtr stats)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr vm;
libxlBlockStats blkstats;
int ret = -1;
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainBlockStatsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_QUERY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
memset(&blkstats, 0, sizeof(libxlBlockStats));
if ((ret = libxlDomainBlockStatsGather(vm, path, &blkstats)) < 0)
goto endjob;
stats->rd_req = blkstats.rd_req;
stats->rd_bytes = blkstats.rd_bytes;
stats->wr_req = blkstats.wr_req;
stats->wr_bytes = blkstats.wr_bytes;
if (STREQ_NULLABLE(blkstats.backend, "vbd"))
stats->errs = blkstats.u.vbd.oo_req;
else
stats->errs = -1;
endjob:
libxlDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
libxlDomainBlockStatsFlags(virDomainPtr dom,
const char *path,
virTypedParameterPtr params,
int *nparams,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr vm;
libxlBlockStats blkstats;
int nstats;
int ret = -1;
virCheckFlags(VIR_TYPED_PARAM_STRING_OKAY, -1);
flags &= ~VIR_TYPED_PARAM_STRING_OKAY;
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainBlockStatsFlagsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_QUERY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto endjob;
/* return count of supported stats */
if (*nparams == 0) {
*nparams = LIBXL_NB_TOTAL_BLK_STAT_PARAM;
ret = 0;
goto endjob;
}
memset(&blkstats, 0, sizeof(libxlBlockStats));
if ((ret = libxlDomainBlockStatsGather(vm, path, &blkstats)) < 0)
goto endjob;
nstats = 0;
#define LIBXL_BLKSTAT_ASSIGN_PARAM(VAR, NAME) \
if (nstats < *nparams && (blkstats.VAR) != -1) { \
if (virTypedParameterAssign(params + nstats, NAME, \
VIR_TYPED_PARAM_LLONG, (blkstats.VAR)) < 0) \
goto endjob; \
nstats++; \
}
LIBXL_BLKSTAT_ASSIGN_PARAM(wr_bytes, VIR_DOMAIN_BLOCK_STATS_WRITE_BYTES);
LIBXL_BLKSTAT_ASSIGN_PARAM(wr_req, VIR_DOMAIN_BLOCK_STATS_WRITE_REQ);
LIBXL_BLKSTAT_ASSIGN_PARAM(rd_bytes, VIR_DOMAIN_BLOCK_STATS_READ_BYTES);
LIBXL_BLKSTAT_ASSIGN_PARAM(rd_req, VIR_DOMAIN_BLOCK_STATS_READ_REQ);
LIBXL_BLKSTAT_ASSIGN_PARAM(f_req, VIR_DOMAIN_BLOCK_STATS_FLUSH_REQ);
if (STREQ_NULLABLE(blkstats.backend, "vbd"))
LIBXL_BLKSTAT_ASSIGN_PARAM(u.vbd.oo_req, VIR_DOMAIN_BLOCK_STATS_ERRS);
*nparams = nstats;
#undef LIBXL_BLKSTAT_ASSIGN_PARAM
endjob:
libxlDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int
libxlConnectDomainEventRegisterAny(virConnectPtr conn, virDomainPtr dom, int eventID,
virConnectDomainEventGenericCallback callback,
void *opaque, virFreeCallback freecb)
{
libxlDriverPrivatePtr driver = conn->privateData;
int ret;
if (virConnectDomainEventRegisterAnyEnsureACL(conn) < 0)
return -1;
if (virDomainEventStateRegisterID(conn,
driver->domainEventState,
dom, eventID, callback, opaque,
freecb, &ret) < 0)
ret = -1;
return ret;
}
static int
libxlConnectDomainEventDeregisterAny(virConnectPtr conn, int callbackID)
{
libxlDriverPrivatePtr driver = conn->privateData;
if (virConnectDomainEventDeregisterAnyEnsureACL(conn) < 0)
return -1;
if (virObjectEventStateDeregisterID(conn,
driver->domainEventState,
callbackID, true) < 0)
return -1;
return 0;
}
static int
libxlConnectIsAlive(virConnectPtr conn G_GNUC_UNUSED)
{
return 1;
}
static int
libxlConnectListAllDomains(virConnectPtr conn,
virDomainPtr **domains,
unsigned int flags)
{
libxlDriverPrivatePtr driver = conn->privateData;
virCheckFlags(VIR_CONNECT_LIST_DOMAINS_FILTERS_ALL, -1);
if (virConnectListAllDomainsEnsureACL(conn) < 0)
return -1;
return virDomainObjListExport(driver->domains, conn, domains,
virConnectListAllDomainsCheckACL, flags);
}
/* Which features are supported by this driver? */
static int
libxlConnectSupportsFeature(virConnectPtr conn, int feature)
{
if (virConnectSupportsFeatureEnsureACL(conn) < 0)
return -1;
switch ((virDrvFeature) feature) {
case VIR_DRV_FEATURE_MIGRATION_V3:
case VIR_DRV_FEATURE_TYPED_PARAM_STRING:
case VIR_DRV_FEATURE_MIGRATION_PARAMS:
case VIR_DRV_FEATURE_MIGRATION_P2P:
return 1;
case VIR_DRV_FEATURE_FD_PASSING:
case VIR_DRV_FEATURE_MIGRATE_CHANGE_PROTECTION:
case VIR_DRV_FEATURE_MIGRATION_DIRECT:
case VIR_DRV_FEATURE_MIGRATION_OFFLINE:
case VIR_DRV_FEATURE_MIGRATION_V1:
case VIR_DRV_FEATURE_MIGRATION_V2:
case VIR_DRV_FEATURE_PROGRAM_KEEPALIVE:
case VIR_DRV_FEATURE_REMOTE:
case VIR_DRV_FEATURE_REMOTE_CLOSE_CALLBACK:
case VIR_DRV_FEATURE_REMOTE_EVENT_CALLBACK:
case VIR_DRV_FEATURE_XML_MIGRATABLE:
default:
return 0;
}
}
static int
libxlNodeDeviceGetPCIInfo(virNodeDeviceDefPtr def,
unsigned *domain,
unsigned *bus,
unsigned *slot,
unsigned *function)
{
virNodeDevCapsDefPtr cap;
cap = def->caps;
while (cap) {
if (cap->data.type == VIR_NODE_DEV_CAP_PCI_DEV) {
*domain = cap->data.pci_dev.domain;
*bus = cap->data.pci_dev.bus;
*slot = cap->data.pci_dev.slot;
*function = cap->data.pci_dev.function;
break;
}
cap = cap->next;
}
if (!cap) {
virReportError(VIR_ERR_INVALID_ARG,
_("device %s is not a PCI device"), def->name);
return -1;
}
return 0;
}
static int
libxlNodeDeviceDetachFlags(virNodeDevicePtr dev,
const char *driverName,
unsigned int flags)
{
virPCIDevicePtr pci = NULL;
unsigned domain = 0, bus = 0, slot = 0, function = 0;
int ret = -1;
virNodeDeviceDefPtr def = NULL;
char *xml = NULL;
libxlDriverPrivatePtr driver = dev->conn->privateData;
virHostdevManagerPtr hostdev_mgr = driver->hostdevMgr;
virCheckFlags(0, -1);
xml = virNodeDeviceGetXMLDesc(dev, 0);
if (!xml)
goto cleanup;
def = virNodeDeviceDefParseString(xml, EXISTING_DEVICE, NULL);
if (!def)
goto cleanup;
if (virNodeDeviceDetachFlagsEnsureACL(dev->conn, def) < 0)
goto cleanup;
if (libxlNodeDeviceGetPCIInfo(def, &domain, &bus, &slot, &function) < 0)
goto cleanup;
pci = virPCIDeviceNew(domain, bus, slot, function);
if (!pci)
goto cleanup;
if (!driverName || STREQ(driverName, "xen")) {
virPCIDeviceSetStubDriver(pci, VIR_PCI_STUB_DRIVER_XEN);
} else {
virReportError(VIR_ERR_INVALID_ARG,
_("unsupported driver name '%s'"), driverName);
goto cleanup;
}
if (virHostdevPCINodeDeviceDetach(hostdev_mgr, pci) < 0)
goto cleanup;
ret = 0;
cleanup:
virPCIDeviceFree(pci);
virNodeDeviceDefFree(def);
VIR_FREE(xml);
return ret;
}
static int
libxlNodeDeviceDettach(virNodeDevicePtr dev)
{
return libxlNodeDeviceDetachFlags(dev, NULL, 0);
}
static int
libxlNodeDeviceReAttach(virNodeDevicePtr dev)
{
virPCIDevicePtr pci = NULL;
unsigned domain = 0, bus = 0, slot = 0, function = 0;
int ret = -1;
virNodeDeviceDefPtr def = NULL;
char *xml = NULL;
libxlDriverPrivatePtr driver = dev->conn->privateData;
virHostdevManagerPtr hostdev_mgr = driver->hostdevMgr;
xml = virNodeDeviceGetXMLDesc(dev, 0);
if (!xml)
goto cleanup;
def = virNodeDeviceDefParseString(xml, EXISTING_DEVICE, NULL);
if (!def)
goto cleanup;
if (virNodeDeviceReAttachEnsureACL(dev->conn, def) < 0)
goto cleanup;
if (libxlNodeDeviceGetPCIInfo(def, &domain, &bus, &slot, &function) < 0)
goto cleanup;
pci = virPCIDeviceNew(domain, bus, slot, function);
if (!pci)
goto cleanup;
if (virHostdevPCINodeDeviceReAttach(hostdev_mgr, pci) < 0)
goto cleanup;
ret = 0;
cleanup:
virPCIDeviceFree(pci);
virNodeDeviceDefFree(def);
VIR_FREE(xml);
return ret;
}
static int
libxlNodeDeviceReset(virNodeDevicePtr dev)
{
virPCIDevicePtr pci = NULL;
unsigned domain = 0, bus = 0, slot = 0, function = 0;
int ret = -1;
virNodeDeviceDefPtr def = NULL;
char *xml = NULL;
libxlDriverPrivatePtr driver = dev->conn->privateData;
virHostdevManagerPtr hostdev_mgr = driver->hostdevMgr;
xml = virNodeDeviceGetXMLDesc(dev, 0);
if (!xml)
goto cleanup;
def = virNodeDeviceDefParseString(xml, EXISTING_DEVICE, NULL);
if (!def)
goto cleanup;
if (virNodeDeviceResetEnsureACL(dev->conn, def) < 0)
goto cleanup;
if (libxlNodeDeviceGetPCIInfo(def, &domain, &bus, &slot, &function) < 0)
goto cleanup;
pci = virPCIDeviceNew(domain, bus, slot, function);
if (!pci)
goto cleanup;
if (virHostdevPCINodeDeviceReset(hostdev_mgr, pci) < 0)
goto cleanup;
ret = 0;
cleanup:
virPCIDeviceFree(pci);
virNodeDeviceDefFree(def);
VIR_FREE(xml);
return ret;
}
static char *
libxlDomainMigrateBegin3Params(virDomainPtr domain,
virTypedParameterPtr params,
int nparams,
char **cookieout,
int *cookieoutlen,
unsigned int flags)
{
const char *xmlin = NULL;
virDomainObjPtr vm = NULL;
char *xmlout = NULL;
#ifdef LIBXL_HAVE_NO_SUSPEND_RESUME
virReportUnsupportedError();
return NULL;
#endif
virCheckFlags(LIBXL_MIGRATION_FLAGS, NULL);
if (virTypedParamsValidate(params, nparams, LIBXL_MIGRATION_PARAMETERS) < 0)
return NULL;
if (virTypedParamsGetString(params, nparams,
VIR_MIGRATE_PARAM_DEST_XML,
&xmlin) < 0)
return NULL;
if (!(vm = libxlDomObjFromDomain(domain)))
return NULL;
if (STREQ_NULLABLE(vm->def->name, "Domain-0")) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("Domain-0 cannot be migrated"));
goto cleanup;
}
if (virDomainMigrateBegin3ParamsEnsureACL(domain->conn, vm->def) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto cleanup;
xmlout = libxlDomainMigrationSrcBegin(domain->conn, vm, xmlin,
cookieout, cookieoutlen);
cleanup:
virDomainObjEndAPI(&vm);
return xmlout;
}
static int
libxlDomainMigratePrepareTunnel3Params(virConnectPtr dconn,
virStreamPtr st,
virTypedParameterPtr params,
int nparams,
const char *cookiein,
int cookieinlen,
char **cookieout G_GNUC_UNUSED,
int *cookieoutlen G_GNUC_UNUSED,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dconn->privateData;
virDomainDefPtr def = NULL;
const char *dom_xml = NULL;
const char *dname = NULL;
const char *uri_in = NULL;
#ifdef LIBXL_HAVE_NO_SUSPEND_RESUME
virReportUnsupportedError();
return -1;
#endif
virCheckFlags(LIBXL_MIGRATION_FLAGS, -1);
if (virTypedParamsValidate(params, nparams, LIBXL_MIGRATION_PARAMETERS) < 0)
goto error;
if (virTypedParamsGetString(params, nparams,
VIR_MIGRATE_PARAM_DEST_XML,
&dom_xml) < 0 ||
virTypedParamsGetString(params, nparams,
VIR_MIGRATE_PARAM_DEST_NAME,
&dname) < 0 ||
virTypedParamsGetString(params, nparams,
VIR_MIGRATE_PARAM_URI,
&uri_in) < 0)
goto error;
if (!(def = libxlDomainMigrationDstPrepareDef(driver, dom_xml, dname)))
goto error;
if (virDomainMigratePrepareTunnel3ParamsEnsureACL(dconn, def) < 0)
goto error;
if (libxlDomainMigrationDstPrepareTunnel3(dconn, st, &def, cookiein,
cookieinlen, flags) < 0)
goto error;
return 0;
error:
virDomainDefFree(def);
return -1;
}
static int
libxlDomainMigratePrepare3Params(virConnectPtr dconn,
virTypedParameterPtr params,
int nparams,
const char *cookiein,
int cookieinlen,
char **cookieout G_GNUC_UNUSED,
int *cookieoutlen G_GNUC_UNUSED,
char **uri_out,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dconn->privateData;
virDomainDefPtr def = NULL;
const char *dom_xml = NULL;
const char *dname = NULL;
const char *uri_in = NULL;
#ifdef LIBXL_HAVE_NO_SUSPEND_RESUME
virReportUnsupportedError();
return -1;
#endif
virCheckFlags(LIBXL_MIGRATION_FLAGS, -1);
if (virTypedParamsValidate(params, nparams, LIBXL_MIGRATION_PARAMETERS) < 0)
goto error;
if (virTypedParamsGetString(params, nparams,
VIR_MIGRATE_PARAM_DEST_XML,
&dom_xml) < 0 ||
virTypedParamsGetString(params, nparams,
VIR_MIGRATE_PARAM_DEST_NAME,
&dname) < 0 ||
virTypedParamsGetString(params, nparams,
VIR_MIGRATE_PARAM_URI,
&uri_in) < 0)
goto error;
if (!(def = libxlDomainMigrationDstPrepareDef(driver, dom_xml, dname)))
goto error;
if (virDomainMigratePrepare3ParamsEnsureACL(dconn, def) < 0)
goto error;
if (libxlDomainMigrationDstPrepare(dconn, &def, uri_in, uri_out,
cookiein, cookieinlen, flags) < 0)
goto error;
return 0;
error:
virDomainDefFree(def);
return -1;
}
static int
libxlDomainMigratePerform3Params(virDomainPtr dom,
const char *dconnuri,
virTypedParameterPtr params,
int nparams,
const char *cookiein G_GNUC_UNUSED,
int cookieinlen G_GNUC_UNUSED,
char **cookieout G_GNUC_UNUSED,
int *cookieoutlen G_GNUC_UNUSED,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr vm = NULL;
const char *dom_xml = NULL;
const char *dname = NULL;
const char *uri = NULL;
int ret = -1;
#ifdef LIBXL_HAVE_NO_SUSPEND_RESUME
virReportUnsupportedError();
return -1;
#endif
virCheckFlags(LIBXL_MIGRATION_FLAGS, -1);
if (virTypedParamsValidate(params, nparams, LIBXL_MIGRATION_PARAMETERS) < 0)
goto cleanup;
if (virTypedParamsGetString(params, nparams,
VIR_MIGRATE_PARAM_DEST_XML,
&dom_xml) < 0 ||
virTypedParamsGetString(params, nparams,
VIR_MIGRATE_PARAM_DEST_NAME,
&dname) < 0 ||
virTypedParamsGetString(params, nparams,
VIR_MIGRATE_PARAM_URI,
&uri) < 0)
goto cleanup;
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainMigratePerform3ParamsEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if ((flags & (VIR_MIGRATE_TUNNELLED | VIR_MIGRATE_PEER2PEER))) {
if (libxlDomainMigrationSrcPerformP2P(driver, vm, dom->conn, dom_xml,
dconnuri, uri, dname, flags) < 0)
goto cleanup;
} else {
if (libxlDomainMigrationSrcPerform(driver, vm, dom_xml, dconnuri,
uri, dname, flags) < 0)
goto cleanup;
}
ret = 0;
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static virDomainPtr
libxlDomainMigrateFinish3Params(virConnectPtr dconn,
virTypedParameterPtr params,
int nparams,
const char *cookiein G_GNUC_UNUSED,
int cookieinlen G_GNUC_UNUSED,
char **cookieout G_GNUC_UNUSED,
int *cookieoutlen G_GNUC_UNUSED,
unsigned int flags,
int cancelled)
{
libxlDriverPrivatePtr driver = dconn->privateData;
virDomainObjPtr vm = NULL;
const char *dname = NULL;
virDomainPtr ret = NULL;
#ifdef LIBXL_HAVE_NO_SUSPEND_RESUME
virReportUnsupportedError();
return NULL;
#endif
virCheckFlags(LIBXL_MIGRATION_FLAGS, NULL);
if (virTypedParamsValidate(params, nparams, LIBXL_MIGRATION_PARAMETERS) < 0)
return NULL;
if (virTypedParamsGetString(params, nparams,
VIR_MIGRATE_PARAM_DEST_NAME,
&dname) < 0)
return NULL;
if (!dname ||
!(vm = virDomainObjListFindByName(driver->domains, dname))) {
/* Migration obviously failed if the domain doesn't exist */
virReportError(VIR_ERR_OPERATION_FAILED,
_("Migration failed. No domain on destination host "
"with matching name '%s'"),
NULLSTR(dname));
return NULL;
}
if (virDomainMigrateFinish3ParamsEnsureACL(dconn, vm->def) < 0) {
virDomainObjEndAPI(&vm);
return NULL;
}
ret = libxlDomainMigrationDstFinish(dconn, vm, flags, cancelled);
virDomainObjEndAPI(&vm);
return ret;
}
static int
libxlDomainMigrateConfirm3Params(virDomainPtr domain,
virTypedParameterPtr params,
int nparams,
const char *cookiein G_GNUC_UNUSED,
int cookieinlen G_GNUC_UNUSED,
unsigned int flags,
int cancelled)
{
libxlDriverPrivatePtr driver = domain->conn->privateData;
virDomainObjPtr vm = NULL;
int ret = -1;
#ifdef LIBXL_HAVE_NO_SUSPEND_RESUME
virReportUnsupportedError();
return -1;
#endif
virCheckFlags(LIBXL_MIGRATION_FLAGS, -1);
if (virTypedParamsValidate(params, nparams, LIBXL_MIGRATION_PARAMETERS) < 0)
return -1;
if (!(vm = libxlDomObjFromDomain(domain)))
return -1;
if (virDomainMigrateConfirm3ParamsEnsureACL(domain->conn, vm->def) < 0)
goto cleanup;
ret = libxlDomainMigrationSrcConfirm(driver, vm, flags, cancelled);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static int libxlNodeGetSecurityModel(virConnectPtr conn,
virSecurityModelPtr secmodel)
{
memset(secmodel, 0, sizeof(*secmodel));
if (virNodeGetSecurityModelEnsureACL(conn) < 0)
return -1;
/*
* Currently the libxl driver does not support security model.
* Similar to the qemu driver, treat this as success and simply
* return no data in secmodel. Avoids spamming the libvirt log
* with "this function is not supported by the connection driver:
* virNodeGetSecurityModel"
*/
return 0;
}
static int
libxlGetDHCPInterfaces(virDomainPtr dom,
virDomainObjPtr vm,
virDomainInterfacePtr **ifaces)
{
int rv = -1;
int n_leases = 0;
size_t i, j;
size_t ifaces_count = 0;
virNetworkPtr network = NULL;
char macaddr[VIR_MAC_STRING_BUFLEN];
virDomainInterfacePtr iface = NULL;
virNetworkDHCPLeasePtr *leases = NULL;
virDomainInterfacePtr *ifaces_ret = NULL;
if (!dom->conn->networkDriver ||
!dom->conn->networkDriver->networkGetDHCPLeases) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Network driver does not support DHCP lease query"));
return -1;
}
for (i = 0; i < vm->def->nnets; i++) {
if (vm->def->nets[i]->type != VIR_DOMAIN_NET_TYPE_NETWORK)
continue;
virMacAddrFormat(&(vm->def->nets[i]->mac), macaddr);
virObjectUnref(network);
network = virNetworkLookupByName(dom->conn,
vm->def->nets[i]->data.network.name);
if ((n_leases = virNetworkGetDHCPLeases(network, macaddr,
&leases, 0)) < 0)
goto error;
if (n_leases) {
if (VIR_EXPAND_N(ifaces_ret, ifaces_count, 1) < 0)
goto error;
if (VIR_ALLOC(ifaces_ret[ifaces_count - 1]) < 0)
goto error;
iface = ifaces_ret[ifaces_count - 1];
/* Assuming each lease corresponds to a separate IP */
iface->naddrs = n_leases;
if (VIR_ALLOC_N(iface->addrs, iface->naddrs) < 0)
goto error;
iface->name = g_strdup(vm->def->nets[i]->ifname);
iface->hwaddr = g_strdup(macaddr);
}
for (j = 0; j < n_leases; j++) {
virNetworkDHCPLeasePtr lease = leases[j];
virDomainIPAddressPtr ip_addr = &iface->addrs[j];
ip_addr->addr = g_strdup(lease->ipaddr);
ip_addr->type = lease->type;
ip_addr->prefix = lease->prefix;
}
for (j = 0; j < n_leases; j++)
virNetworkDHCPLeaseFree(leases[j]);
VIR_FREE(leases);
}
*ifaces = ifaces_ret;
ifaces_ret = NULL;
rv = ifaces_count;
cleanup:
virObjectUnref(network);
if (leases) {
for (i = 0; i < n_leases; i++)
virNetworkDHCPLeaseFree(leases[i]);
}
VIR_FREE(leases);
return rv;
error:
if (ifaces_ret) {
for (i = 0; i < ifaces_count; i++)
virDomainInterfaceFree(ifaces_ret[i]);
}
VIR_FREE(ifaces_ret);
goto cleanup;
}
static int
libxlDomainInterfaceAddresses(virDomainPtr dom,
virDomainInterfacePtr **ifaces,
unsigned int source,
unsigned int flags)
{
virDomainObjPtr vm = NULL;
int ret = -1;
virCheckFlags(0, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
goto cleanup;
if (virDomainInterfaceAddressesEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0)
goto cleanup;
switch (source) {
case VIR_DOMAIN_INTERFACE_ADDRESSES_SRC_LEASE:
ret = libxlGetDHCPInterfaces(dom, vm, ifaces);
break;
default:
virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED,
_("Unsupported IP address data source %d"),
source);
break;
}
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static char *
libxlConnectGetDomainCapabilities(virConnectPtr conn,
const char *emulatorbin,
const char *arch_str,
const char *machine,
const char *virttype_str,
unsigned int flags)
{
libxlDriverPrivatePtr driver = conn->privateData;
libxlDriverConfigPtr cfg;
char *ret = NULL;
int virttype = VIR_DOMAIN_VIRT_XEN;
virDomainCapsPtr domCaps = NULL;
int arch = virArchFromHost(); /* virArch */
virCheckFlags(0, ret);
if (virConnectGetDomainCapabilitiesEnsureACL(conn) < 0)
return ret;
cfg = libxlDriverConfigGet(driver);
if (virttype_str &&
(virttype = virDomainVirtTypeFromString(virttype_str)) < 0) {
virReportError(VIR_ERR_INVALID_ARG,
_("unknown virttype: %s"),
virttype_str);
goto cleanup;
}
if (virttype != VIR_DOMAIN_VIRT_XEN) {
virReportError(VIR_ERR_INVALID_ARG,
_("unknown virttype: %s"),
virttype_str);
goto cleanup;
}
if (arch_str && (arch = virArchFromString(arch_str)) == VIR_ARCH_NONE) {
virReportError(VIR_ERR_INVALID_ARG,
_("unknown architecture: %s"),
arch_str);
goto cleanup;
}
if (emulatorbin == NULL)
emulatorbin = "/usr/bin/qemu-system-x86_64";
if (machine) {
if (STRNEQ(machine, "xenpv") &&
STRNEQ(machine, "xenpvh") &&
STRNEQ(machine, "xenfv")) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("Xen only supports 'xenpv', 'xenpvh' and 'xenfv' machines"));
goto cleanup;
}
} else {
machine = "xenpv";
}
if (!(domCaps = virDomainCapsNew(emulatorbin, machine, arch, virttype)))
goto cleanup;
if (libxlMakeDomainCapabilities(domCaps, cfg->firmwares,
cfg->nfirmwares) < 0)
goto cleanup;
ret = virDomainCapsFormat(domCaps);
cleanup:
virObjectUnref(domCaps);
virObjectUnref(cfg);
return ret;
}
static int
libxlConnectCompareCPU(virConnectPtr conn,
const char *xmlDesc,
unsigned int flags)
{
libxlDriverPrivatePtr driver = conn->privateData;
libxlDriverConfigPtr cfg;
int ret = VIR_CPU_COMPARE_ERROR;
bool failIncompatible;
virCheckFlags(VIR_CONNECT_COMPARE_CPU_FAIL_INCOMPATIBLE,
VIR_CPU_COMPARE_ERROR);
if (virConnectCompareCPUEnsureACL(conn) < 0)
return ret;
failIncompatible = !!(flags & VIR_CONNECT_COMPARE_CPU_FAIL_INCOMPATIBLE);
cfg = libxlDriverConfigGet(driver);
ret = virCPUCompareXML(cfg->caps->host.arch, cfg->caps->host.cpu,
xmlDesc, failIncompatible);
virObjectUnref(cfg);
return ret;
}
static char *
libxlConnectBaselineCPU(virConnectPtr conn,
const char **xmlCPUs,
unsigned int ncpus,
unsigned int flags)
{
virCPUDefPtr *cpus = NULL;
virCPUDefPtr cpu = NULL;
char *cpustr = NULL;
virCheckFlags(VIR_CONNECT_BASELINE_CPU_EXPAND_FEATURES |
VIR_CONNECT_BASELINE_CPU_MIGRATABLE, NULL);
if (virConnectBaselineCPUEnsureACL(conn) < 0)
goto cleanup;
if (!(cpus = virCPUDefListParse(xmlCPUs, ncpus, VIR_CPU_TYPE_HOST)))
goto cleanup;
if (!(cpu = virCPUBaseline(VIR_ARCH_NONE, cpus, ncpus, NULL, NULL,
!!(flags & VIR_CONNECT_BASELINE_CPU_MIGRATABLE))))
goto cleanup;
if ((flags & VIR_CONNECT_BASELINE_CPU_EXPAND_FEATURES) &&
virCPUExpandFeatures(cpus[0]->arch, cpu) < 0)
goto cleanup;
cpustr = virCPUDefFormat(cpu, NULL);
cleanup:
virCPUDefListFree(cpus);
virCPUDefFree(cpu);
return cpustr;
}
static int
libxlDomainSetMetadata(virDomainPtr dom,
int type,
const char *metadata,
const char *key,
const char *uri,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
g_autoptr(libxlDriverConfig) cfg = libxlDriverConfigGet(driver);
virDomainObjPtr vm = NULL;
int ret = -1;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG, -1);
if (!(vm = libxlDomObjFromDomain(dom)))
return -1;
if (virDomainSetMetadataEnsureACL(dom->conn, vm->def, flags) < 0)
goto cleanup;
if (libxlDomainObjBeginJob(driver, vm, LIBXL_JOB_MODIFY) < 0)
goto cleanup;
ret = virDomainObjSetMetadata(vm, type, metadata, key, uri, cfg->caps,
driver->xmlopt, cfg->stateDir,
cfg->configDir, flags);
if (ret == 0) {
virObjectEventPtr ev = NULL;
ev = virDomainEventMetadataChangeNewFromObj(vm, type, uri);
virObjectEventStateQueue(driver->domainEventState, ev);
}
libxlDomainObjEndJob(driver, vm);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static char *
libxlDomainGetMetadata(virDomainPtr dom,
int type,
const char *uri,
unsigned int flags)
{
virDomainObjPtr vm;
char *ret = NULL;
if (!(vm = libxlDomObjFromDomain(dom)))
return NULL;
if (virDomainGetMetadataEnsureACL(dom->conn, vm->def) < 0)
goto cleanup;
ret = virDomainObjGetMetadata(vm, type, uri, flags);
cleanup:
virDomainObjEndAPI(&vm);
return ret;
}
static virHypervisorDriver libxlHypervisorDriver = {
.name = LIBXL_DRIVER_NAME,
.connectURIProbe = libxlConnectURIProbe,
.connectOpen = libxlConnectOpen, /* 0.9.0 */
.connectClose = libxlConnectClose, /* 0.9.0 */
.connectGetType = libxlConnectGetType, /* 0.9.0 */
.connectGetVersion = libxlConnectGetVersion, /* 0.9.0 */
.connectGetHostname = libxlConnectGetHostname, /* 0.9.0 */
.connectGetSysinfo = libxlConnectGetSysinfo, /* 1.1.0 */
.connectGetMaxVcpus = libxlConnectGetMaxVcpus, /* 0.9.0 */
.nodeGetInfo = libxlNodeGetInfo, /* 0.9.0 */
.connectGetCapabilities = libxlConnectGetCapabilities, /* 0.9.0 */
.connectListDomains = libxlConnectListDomains, /* 0.9.0 */
.connectNumOfDomains = libxlConnectNumOfDomains, /* 0.9.0 */
.connectListAllDomains = libxlConnectListAllDomains, /* 0.9.13 */
.domainCreateXML = libxlDomainCreateXML, /* 0.9.0 */
.domainLookupByID = libxlDomainLookupByID, /* 0.9.0 */
.domainLookupByUUID = libxlDomainLookupByUUID, /* 0.9.0 */
.domainLookupByName = libxlDomainLookupByName, /* 0.9.0 */
.domainSuspend = libxlDomainSuspend, /* 0.9.0 */
.domainResume = libxlDomainResume, /* 0.9.0 */
.domainShutdown = libxlDomainShutdown, /* 0.9.0 */
.domainShutdownFlags = libxlDomainShutdownFlags, /* 0.9.10 */
.domainReboot = libxlDomainReboot, /* 0.9.0 */
.domainDestroy = libxlDomainDestroy, /* 0.9.0 */
.domainDestroyFlags = libxlDomainDestroyFlags, /* 0.9.4 */
#ifdef LIBXL_HAVE_DOMAIN_SUSPEND_ONLY
.domainPMSuspendForDuration = libxlDomainPMSuspendForDuration, /* 4.8.0 */
#endif
.domainPMWakeup = libxlDomainPMWakeup, /* 4.8.0 */
.domainGetOSType = libxlDomainGetOSType, /* 0.9.0 */
.domainGetMaxMemory = libxlDomainGetMaxMemory, /* 0.9.0 */
.domainSetMaxMemory = libxlDomainSetMaxMemory, /* 0.9.2 */
.domainSetMemory = libxlDomainSetMemory, /* 0.9.0 */
.domainSetMemoryFlags = libxlDomainSetMemoryFlags, /* 0.9.0 */
.domainGetInfo = libxlDomainGetInfo, /* 0.9.0 */
.domainGetState = libxlDomainGetState, /* 0.9.2 */
.domainSave = libxlDomainSave, /* 0.9.2 */
.domainSaveFlags = libxlDomainSaveFlags, /* 0.9.4 */
.domainRestore = libxlDomainRestore, /* 0.9.2 */
.domainRestoreFlags = libxlDomainRestoreFlags, /* 0.9.4 */
.domainCoreDump = libxlDomainCoreDump, /* 0.9.2 */
.domainSetVcpus = libxlDomainSetVcpus, /* 0.9.0 */
.domainSetVcpusFlags = libxlDomainSetVcpusFlags, /* 0.9.0 */
.domainGetVcpusFlags = libxlDomainGetVcpusFlags, /* 0.9.0 */
.domainGetMaxVcpus = libxlDomainGetMaxVcpus, /* 3.0.0 */
.domainPinVcpu = libxlDomainPinVcpu, /* 0.9.0 */
.domainPinVcpuFlags = libxlDomainPinVcpuFlags, /* 1.2.1 */
.domainGetVcpus = libxlDomainGetVcpus, /* 0.9.0 */
.domainGetVcpuPinInfo = libxlDomainGetVcpuPinInfo, /* 1.2.1 */
.domainGetXMLDesc = libxlDomainGetXMLDesc, /* 0.9.0 */
.connectDomainXMLFromNative = libxlConnectDomainXMLFromNative, /* 0.9.0 */
.connectDomainXMLToNative = libxlConnectDomainXMLToNative, /* 0.9.0 */
.connectListDefinedDomains = libxlConnectListDefinedDomains, /* 0.9.0 */
.connectNumOfDefinedDomains = libxlConnectNumOfDefinedDomains, /* 0.9.0 */
.domainCreate = libxlDomainCreate, /* 0.9.0 */
.domainCreateWithFlags = libxlDomainCreateWithFlags, /* 0.9.0 */
.domainDefineXML = libxlDomainDefineXML, /* 0.9.0 */
.domainDefineXMLFlags = libxlDomainDefineXMLFlags, /* 1.2.12 */
.domainUndefine = libxlDomainUndefine, /* 0.9.0 */
.domainUndefineFlags = libxlDomainUndefineFlags, /* 0.9.4 */
.domainAttachDevice = libxlDomainAttachDevice, /* 0.9.2 */
.domainAttachDeviceFlags = libxlDomainAttachDeviceFlags, /* 0.9.2 */
.domainDetachDevice = libxlDomainDetachDevice, /* 0.9.2 */
.domainDetachDeviceFlags = libxlDomainDetachDeviceFlags, /* 0.9.2 */
.domainUpdateDeviceFlags = libxlDomainUpdateDeviceFlags, /* 0.9.2 */
.domainGetAutostart = libxlDomainGetAutostart, /* 0.9.0 */
.domainSetAutostart = libxlDomainSetAutostart, /* 0.9.0 */
.domainGetSchedulerType = libxlDomainGetSchedulerType, /* 0.9.0 */
.domainGetSchedulerParameters = libxlDomainGetSchedulerParameters, /* 0.9.0 */
.domainGetSchedulerParametersFlags = libxlDomainGetSchedulerParametersFlags, /* 0.9.2 */
.domainSetSchedulerParameters = libxlDomainSetSchedulerParameters, /* 0.9.0 */
.domainSetSchedulerParametersFlags = libxlDomainSetSchedulerParametersFlags, /* 0.9.2 */
#ifdef LIBXL_HAVE_DOMAIN_NODEAFFINITY
.domainGetNumaParameters = libxlDomainGetNumaParameters, /* 1.1.1 */
#endif
.nodeGetFreeMemory = libxlNodeGetFreeMemory, /* 0.9.0 */
.nodeGetCellsFreeMemory = libxlNodeGetCellsFreeMemory, /* 1.1.1 */
.domainGetJobInfo = libxlDomainGetJobInfo, /* 1.3.1 */
.domainGetJobStats = libxlDomainGetJobStats, /* 1.3.1 */
.domainMemoryStats = libxlDomainMemoryStats, /* 1.3.0 */
.domainGetCPUStats = libxlDomainGetCPUStats, /* 1.3.0 */
.domainInterfaceStats = libxlDomainInterfaceStats, /* 1.3.2 */
.domainBlockStats = libxlDomainBlockStats, /* 2.1.0 */
.domainBlockStatsFlags = libxlDomainBlockStatsFlags, /* 2.1.0 */
.connectDomainEventRegister = libxlConnectDomainEventRegister, /* 0.9.0 */
.connectDomainEventDeregister = libxlConnectDomainEventDeregister, /* 0.9.0 */
.domainManagedSave = libxlDomainManagedSave, /* 0.9.2 */
.domainHasManagedSaveImage = libxlDomainHasManagedSaveImage, /* 0.9.2 */
.domainManagedSaveRemove = libxlDomainManagedSaveRemove, /* 0.9.2 */
.domainOpenConsole = libxlDomainOpenConsole, /* 1.1.2 */
.domainIsActive = libxlDomainIsActive, /* 0.9.0 */
.domainIsPersistent = libxlDomainIsPersistent, /* 0.9.0 */
.domainIsUpdated = libxlDomainIsUpdated, /* 0.9.0 */
.connectDomainEventRegisterAny = libxlConnectDomainEventRegisterAny, /* 0.9.0 */
.connectDomainEventDeregisterAny = libxlConnectDomainEventDeregisterAny, /* 0.9.0 */
.connectIsAlive = libxlConnectIsAlive, /* 0.9.8 */
.connectSupportsFeature = libxlConnectSupportsFeature, /* 1.1.1 */
.nodeDeviceDettach = libxlNodeDeviceDettach, /* 1.2.3 */
.nodeDeviceDetachFlags = libxlNodeDeviceDetachFlags, /* 1.2.3 */
.nodeDeviceReAttach = libxlNodeDeviceReAttach, /* 1.2.3 */
.nodeDeviceReset = libxlNodeDeviceReset, /* 1.2.3 */
.domainMigrateBegin3Params = libxlDomainMigrateBegin3Params, /* 1.2.6 */
.domainMigratePrepare3Params = libxlDomainMigratePrepare3Params, /* 1.2.6 */
.domainMigratePrepareTunnel3Params = libxlDomainMigratePrepareTunnel3Params, /* 3.1.0 */
.domainMigratePerform3Params = libxlDomainMigratePerform3Params, /* 1.2.6 */
.domainMigrateFinish3Params = libxlDomainMigrateFinish3Params, /* 1.2.6 */
.domainMigrateConfirm3Params = libxlDomainMigrateConfirm3Params, /* 1.2.6 */
.nodeGetSecurityModel = libxlNodeGetSecurityModel, /* 1.2.16 */
.domainInterfaceAddresses = libxlDomainInterfaceAddresses, /* 1.3.5 */
.connectGetDomainCapabilities = libxlConnectGetDomainCapabilities, /* 2.0.0 */
.connectCompareCPU = libxlConnectCompareCPU, /* 2.3.0 */
.connectBaselineCPU = libxlConnectBaselineCPU, /* 2.3.0 */
.domainSetMetadata = libxlDomainSetMetadata, /* 5.7.0 */
.domainGetMetadata = libxlDomainGetMetadata, /* 5.7.0 */
};
static virConnectDriver libxlConnectDriver = {
.localOnly = true,
.uriSchemes = (const char *[]){ "xen", NULL },
.hypervisorDriver = &libxlHypervisorDriver,
};
static virStateDriver libxlStateDriver = {
.name = "LIBXL",
.stateInitialize = libxlStateInitialize,
.stateCleanup = libxlStateCleanup,
.stateReload = libxlStateReload,
};
int
libxlRegister(void)
{
if (virRegisterConnectDriver(&libxlConnectDriver,
true) < 0)
return -1;
if (virRegisterStateDriver(&libxlStateDriver) < 0)
return -1;
return 0;
}
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