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libvirt/src/libxl/libxl_driver.c
Osier Yang bc95be5dea cleanup: Remove the duplicate header 
Detected by a simple Shell script:

for i in $(git ls-files -- '*.[ch]'); do
    awk 'BEGIN {
        fail=0
    }
    /# *include.*\.h/{
        match($0, /["<][^">]*[">]/)
        arr[substr($0, RSTART+1, RLENGTH-2)]++
    }
    END {
        for (key in arr) {
            if (arr[key] > 1) {
                fail=1
                printf("%d %s\n", arr[key], key)
            }
        }
        if (fail == 1)
            exit 1
    }' $i

    if test $? != 0; then
        echo "Duplicate header(s) in $i"
    fi
done;

A later patch will add the syntax-check to avoid duplicate
headers.
2013-04-17 15:49:35 +08:00

4291 lines
124 KiB
C
Raw Blame History

/*---------------------------------------------------------------------------*/
/* Copyright (C) 2006-2012 Red Hat, Inc.
* Copyright (C) 2011-2013 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/>.
*
* Authors:
* Jim Fehlig <jfehlig@novell.com>
* Markus Groß <gross@univention.de>
* Daniel P. Berrange <berrange@redhat.com>
*/
/*---------------------------------------------------------------------------*/
#include <config.h>
#include <math.h>
#include <libxl.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 "vircommand.h"
#include "libxl_driver.h"
#include "libxl_conf.h"
#include "xen_xm.h"
#include "virtypedparam.h"
#include "viruri.h"
#define VIR_FROM_THIS VIR_FROM_LIBXL
#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_CONFIG_FORMAT_XM "xen-xm"
/* Number of Xen scheduler parameters */
#define XEN_SCHED_CREDIT_NPARAM 2
/* Append an event registration to the list of registrations */
#define LIBXL_EV_REG_APPEND(head, add) \
do { \
libxlEventHookInfoPtr temp; \
if (head) { \
temp = head; \
while (temp->next) \
temp = temp->next; \
temp->next = add; \
} else { \
head = add; \
} \
} while (0)
/* Remove an event registration from the list of registrations */
#define LIBXL_EV_REG_REMOVE(head, del) \
do { \
libxlEventHookInfoPtr temp; \
if (head == del) { \
head = head->next; \
} else { \
temp = head; \
while (temp->next && temp->next != del) \
temp = temp->next; \
if (temp->next) { \
temp->next = del->next; \
} \
} \
} while (0)
/* Object used to store info related to libxl event registrations */
struct _libxlEventHookInfo {
libxlEventHookInfoPtr next;
libxlDomainObjPrivatePtr priv;
void *xl_priv;
int id;
};
static virClassPtr libxlDomainObjPrivateClass;
static libxlDriverPrivatePtr libxl_driver = NULL;
/* Function declarations */
static int
libxlDomainManagedSaveLoad(virDomainObjPtr vm,
void *opaque);
static int
libxlVmStart(libxlDriverPrivatePtr driver, virDomainObjPtr vm,
bool start_paused, int restore_fd);
/* Function definitions */
static int
libxlDomainObjPrivateOnceInit(void)
{
if (!(libxlDomainObjPrivateClass = virClassNew(virClassForObjectLockable(),
"libxlDomainObjPrivate",
sizeof(libxlDomainObjPrivate),
NULL)))
return -1;
return 0;
}
VIR_ONCE_GLOBAL_INIT(libxlDomainObjPrivate)
static void
libxlDriverLock(libxlDriverPrivatePtr driver)
{
virMutexLock(&driver->lock);
}
static void
libxlDriverUnlock(libxlDriverPrivatePtr driver)
{
virMutexUnlock(&driver->lock);
}
static void
libxlEventHookInfoFree(void *obj)
{
libxlEventHookInfoPtr info = obj;
/* Drop reference on libxlDomainObjPrivate */
virObjectUnref(info->priv);
VIR_FREE(info);
}
static void
libxlFDEventCallback(int watch ATTRIBUTE_UNUSED,
int fd,
int vir_events,
void *fd_info)
{
libxlEventHookInfoPtr info = fd_info;
int events = 0;
virObjectLock(info->priv);
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;
virObjectUnlock(info->priv);
libxl_osevent_occurred_fd(info->priv->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;
libxlEventHookInfoPtr info;
if (VIR_ALLOC(info) < 0) {
virReportOOMError();
return -1;
}
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, libxlEventHookInfoFree);
if (info->id < 0) {
VIR_FREE(info);
return -1;
}
info->priv = priv;
/*
* Take a reference on the domain object. Reference is dropped in
* libxlEventHookInfoFree, ensuring the domain object outlives the fd
* event objects.
*/
virObjectRef(info->priv);
info->xl_priv = xl_priv;
*hndp = info;
return 0;
}
static int
libxlFDModifyEventHook(void *priv ATTRIBUTE_UNUSED,
int fd ATTRIBUTE_UNUSED,
void **hndp,
short events)
{
libxlEventHookInfoPtr info = *hndp;
int vir_events = VIR_EVENT_HANDLE_ERROR;
virObjectLock(info->priv);
if (events & POLLIN)
vir_events |= VIR_EVENT_HANDLE_READABLE;
if (events & POLLOUT)
vir_events |= VIR_EVENT_HANDLE_WRITABLE;
virEventUpdateHandle(info->id, vir_events);
virObjectUnlock(info->priv);
return 0;
}
static void
libxlFDDeregisterEventHook(void *priv ATTRIBUTE_UNUSED,
int fd ATTRIBUTE_UNUSED,
void *hnd)
{
libxlEventHookInfoPtr info = hnd;
libxlDomainObjPrivatePtr p = info->priv;
virObjectLock(p);
virEventRemoveHandle(info->id);
virObjectUnlock(p);
}
static void
libxlTimerCallback(int timer ATTRIBUTE_UNUSED, void *timer_info)
{
libxlEventHookInfoPtr info = timer_info;
libxlDomainObjPrivatePtr p = info->priv;
virObjectLock(p);
/*
* 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);
virObjectUnlock(p);
libxl_osevent_occurred_timeout(p->ctx, info->xl_priv);
virObjectLock(p);
/*
* Timeout could have been freed while the lock was dropped.
* Only remove it from the list if it still exists.
*/
if (virEventRemoveTimeout(info->id) == 0)
LIBXL_EV_REG_REMOVE(p->timerRegistrations, info);
virObjectUnlock(p);
}
static int
libxlTimeoutRegisterEventHook(void *priv,
void **hndp,
struct timeval abs_t,
void *xl_priv)
{
libxlEventHookInfoPtr info;
struct timeval now;
struct timeval res;
static struct timeval zero;
int timeout;
if (VIR_ALLOC(info) < 0) {
virReportOOMError();
return -1;
}
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, libxlEventHookInfoFree);
if (info->id < 0) {
VIR_FREE(info);
return -1;
}
info->priv = priv;
/*
* Also take a reference on the domain object. Reference is dropped in
* libxlEventHookInfoFree, ensuring the domain object outlives the timeout
* event objects.
*/
virObjectRef(info->priv);
virObjectLock(info->priv);
LIBXL_EV_REG_APPEND(info->priv->timerRegistrations, info);
virObjectUnlock(info->priv);
info->xl_priv = xl_priv;
*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 ATTRIBUTE_UNUSED,
void **hndp,
struct timeval abs_t ATTRIBUTE_UNUSED)
{
libxlEventHookInfoPtr info = *hndp;
virObjectLock(info->priv);
/* Make the timeout fire */
virEventUpdateTimeout(info->id, 0);
virObjectUnlock(info->priv);
return 0;
}
static void
libxlTimeoutDeregisterEventHook(void *priv ATTRIBUTE_UNUSED,
void *hnd)
{
libxlEventHookInfoPtr info = hnd;
libxlDomainObjPrivatePtr p = info->priv;
virObjectLock(p);
/*
* Only remove the timeout from the list if removal from the
* event loop is successful.
*/
if (virEventRemoveTimeout(info->id) == 0)
LIBXL_EV_REG_REMOVE(p->timerRegistrations, info);
virObjectUnlock(p);
}
static void
libxlRegisteredTimeoutsCleanup(libxlDomainObjPrivatePtr priv)
{
libxlEventHookInfoPtr info;
virObjectLock(priv);
info = priv->timerRegistrations;
while (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(priv->ctx, info->xl_priv);
virEventRemoveTimeout(info->id);
info = info->next;
}
priv->timerRegistrations = NULL;
virObjectUnlock(priv);
}
static const libxl_osevent_hooks libxl_event_callbacks = {
.fd_register = libxlFDRegisterEventHook,
.fd_modify = libxlFDModifyEventHook,
.fd_deregister = libxlFDDeregisterEventHook,
.timeout_register = libxlTimeoutRegisterEventHook,
.timeout_modify = libxlTimeoutModifyEventHook,
.timeout_deregister = libxlTimeoutDeregisterEventHook,
};
static void *
libxlDomainObjPrivateAlloc(void)
{
libxlDomainObjPrivatePtr priv;
if (libxlDomainObjPrivateInitialize() < 0)
return NULL;
if (!(priv = virObjectLockableNew(libxlDomainObjPrivateClass)))
return NULL;
if (libxl_ctx_alloc(&priv->ctx, LIBXL_VERSION, 0, libxl_driver->logger)) {
VIR_ERROR(_("Failed libxl context initialization"));
virObjectUnref(priv);
return NULL;
}
libxl_osevent_register_hooks(priv->ctx, &libxl_event_callbacks, priv);
return priv;
}
static void
libxlDomainObjPrivateFree(void *data)
{
libxlDomainObjPrivatePtr priv = data;
if (priv->deathW)
libxl_evdisable_domain_death(priv->ctx, priv->deathW);
libxl_ctx_free(priv->ctx);
virObjectUnref(priv);
}
virDomainXMLPrivateDataCallbacks libxlDomainXMLPrivateDataCallbacks = {
.alloc = libxlDomainObjPrivateAlloc,
.free = libxlDomainObjPrivateFree,
};
static int
libxlDomainDeviceDefPostParse(virDomainDeviceDefPtr dev,
virDomainDefPtr def,
virCapsPtr caps ATTRIBUTE_UNUSED,
void *opaque ATTRIBUTE_UNUSED)
{
if (dev->type == VIR_DOMAIN_DEVICE_CHR &&
dev->data.chr->deviceType == VIR_DOMAIN_CHR_DEVICE_TYPE_CONSOLE &&
dev->data.chr->targetType == VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_NONE &&
STRNEQ(def->os.type, "hvm"))
dev->data.chr->targetType = VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_XEN;
return 0;
}
virDomainDefParserConfig libxlDomainDefParserConfig = {
.macPrefix = { 0x00, 0x16, 0x3e },
.devicesPostParseCallback = libxlDomainDeviceDefPostParse,
};
/* driver must be locked before calling */
static void
libxlDomainEventQueue(libxlDriverPrivatePtr driver, virDomainEventPtr event)
{
virDomainEventStateQueue(driver->domainEventState, event);
}
static int
libxlAutostartDomain(virDomainObjPtr vm,
void *opaque)
{
libxlDriverPrivatePtr driver = opaque;
virErrorPtr err;
int ret = -1;
virObjectLock(vm);
virResetLastError();
if (vm->autostart && !virDomainObjIsActive(vm) &&
libxlVmStart(driver, vm, false, -1) < 0) {
err = virGetLastError();
VIR_ERROR(_("Failed to autostart VM '%s': %s"),
vm->def->name,
err ? err->message : _("unknown error"));
goto cleanup;
}
ret = 0;
cleanup:
virObjectUnlock(vm);
return ret;
}
static int
libxlDoNodeGetInfo(libxlDriverPrivatePtr driver, virNodeInfoPtr info)
{
libxl_physinfo phy_info;
const libxl_version_info* ver_info;
virArch hostarch = virArchFromHost();
if (libxl_get_physinfo(driver->ctx, &phy_info)) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("libxl_get_physinfo_info failed"));
return -1;
}
if ((ver_info = libxl_get_version_info(driver->ctx)) == NULL) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("libxl_get_version_info failed"));
return -1;
}
if (virStrcpyStatic(info->model, virArchToString(hostarch)) == NULL) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("machine type %s too big for destination"),
virArchToString(hostarch));
return -1;
}
info->memory = phy_info.total_pages * (ver_info->pagesize / 1024);
info->cpus = phy_info.nr_cpus;
info->nodes = phy_info.nr_nodes;
info->cores = phy_info.cores_per_socket;
info->threads = phy_info.threads_per_core;
info->sockets = 1;
info->mhz = phy_info.cpu_khz / 1000;
return 0;
}
static char *
libxlDomainManagedSavePath(libxlDriverPrivatePtr driver, virDomainObjPtr vm) {
char *ret;
if (virAsprintf(&ret, "%s/%s.save", driver->saveDir, vm->def->name) < 0) {
virReportOOMError();
return NULL;
}
return ret;
}
/* This internal function expects the driver lock to already be held on
* entry. */
static int ATTRIBUTE_NONNULL(3) ATTRIBUTE_NONNULL(4)
libxlSaveImageOpen(libxlDriverPrivatePtr driver, const char *from,
virDomainDefPtr *ret_def, libxlSavefileHeaderPtr ret_hdr)
{
int fd;
virDomainDefPtr def = NULL;
libxlSavefileHeader hdr;
char *xml = NULL;
if ((fd = virFileOpenAs(from, O_RDONLY, 0, -1, -1, 0)) < 0) {
virReportError(VIR_ERR_OPERATION_FAILED,
"%s", _("cannot read domain image"));
goto error;
}
if (saferead(fd, &hdr, sizeof(hdr)) != sizeof(hdr)) {
virReportError(VIR_ERR_OPERATION_FAILED,
"%s", _("failed to read libxl header"));
goto error;
}
if (memcmp(hdr.magic, LIBXL_SAVE_MAGIC, sizeof(hdr.magic))) {
virReportError(VIR_ERR_INVALID_ARG, "%s", _("image magic is incorrect"));
goto error;
}
if (hdr.version > LIBXL_SAVE_VERSION) {
virReportError(VIR_ERR_OPERATION_FAILED,
_("image version is not supported (%d > %d)"),
hdr.version, LIBXL_SAVE_VERSION);
goto error;
}
if (hdr.xmlLen <= 0) {
virReportError(VIR_ERR_OPERATION_FAILED,
_("invalid XML length: %d"), hdr.xmlLen);
goto error;
}
if (VIR_ALLOC_N(xml, hdr.xmlLen) < 0) {
virReportOOMError();
goto error;
}
if (saferead(fd, xml, hdr.xmlLen) != hdr.xmlLen) {
virReportError(VIR_ERR_OPERATION_FAILED, "%s", _("failed to read XML"));
goto error;
}
if (!(def = virDomainDefParseString(xml, driver->caps, driver->xmlopt,
1 << VIR_DOMAIN_VIRT_XEN,
VIR_DOMAIN_XML_INACTIVE)))
goto error;
VIR_FREE(xml);
*ret_def = def;
*ret_hdr = hdr;
return fd;
error:
VIR_FREE(xml);
virDomainDefFree(def);
VIR_FORCE_CLOSE(fd);
return -1;
}
/*
* Cleanup function for domain that has reached shutoff state.
*
* virDomainObjPtr should be locked on invocation
*/
static void
libxlVmCleanup(libxlDriverPrivatePtr driver,
virDomainObjPtr vm,
virDomainShutoffReason reason)
{
libxlDomainObjPrivatePtr priv = vm->privateData;
int vnc_port;
char *file;
int i;
if (priv->deathW) {
libxl_evdisable_domain_death(priv->ctx, priv->deathW);
priv->deathW = NULL;
}
if (vm->persistent) {
vm->def->id = -1;
virDomainObjSetState(vm, VIR_DOMAIN_SHUTOFF, reason);
}
driver->nactive--;
if (!driver->nactive && driver->inhibitCallback)
driver->inhibitCallback(false, driver->inhibitOpaque);
if ((vm->def->ngraphics == 1) &&
vm->def->graphics[0]->type == VIR_DOMAIN_GRAPHICS_TYPE_VNC &&
vm->def->graphics[0]->data.vnc.autoport) {
vnc_port = vm->def->graphics[0]->data.vnc.port;
if (vnc_port >= LIBXL_VNC_PORT_MIN) {
if (virPortAllocatorRelease(driver->reservedVNCPorts,
vnc_port) < 0)
VIR_DEBUG("Could not mark port %d as unused", vnc_port);
}
}
/* Remove any cputune settings */
if (vm->def->cputune.nvcpupin) {
for (i = 0; i < vm->def->cputune.nvcpupin; ++i) {
VIR_FREE(vm->def->cputune.vcpupin[i]->cpumask);
VIR_FREE(vm->def->cputune.vcpupin[i]);
}
VIR_FREE(vm->def->cputune.vcpupin);
vm->def->cputune.nvcpupin = 0;
}
if (virAsprintf(&file, "%s/%s.xml", driver->stateDir, vm->def->name) > 0) {
if (unlink(file) < 0 && errno != ENOENT && errno != ENOTDIR)
VIR_DEBUG("Failed to remove domain XML for %s", vm->def->name);
VIR_FREE(file);
}
if (vm->newDef) {
virDomainDefFree(vm->def);
vm->def = vm->newDef;
vm->def->id = -1;
vm->newDef = NULL;
}
libxlRegisteredTimeoutsCleanup(priv);
}
/*
* Reap a domain from libxenlight.
*
* virDomainObjPtr should be locked on invocation
*/
static int
libxlVmReap(libxlDriverPrivatePtr driver,
virDomainObjPtr vm,
virDomainShutoffReason reason)
{
libxlDomainObjPrivatePtr priv = vm->privateData;
if (libxl_domain_destroy(priv->ctx, vm->def->id, NULL) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Unable to cleanup domain %d"), vm->def->id);
return -1;
}
libxlVmCleanup(driver, vm, reason);
return 0;
}
/*
* Handle previously registered event notification from libxenlight
*/
static void
libxlEventHandler(void *data ATTRIBUTE_UNUSED, const libxl_event *event)
{
libxlDriverPrivatePtr driver = libxl_driver;
virDomainObjPtr vm = NULL;
virDomainEventPtr dom_event = NULL;
libxl_shutdown_reason xl_reason = event->u.domain_shutdown.shutdown_reason;
if (event->type == LIBXL_EVENT_TYPE_DOMAIN_SHUTDOWN) {
virDomainShutoffReason reason;
/*
* Similar to the xl implementation, ignore SUSPEND. Any actions needed
* after calling libxl_domain_suspend() are handled by it's callers.
*/
if (xl_reason == LIBXL_SHUTDOWN_REASON_SUSPEND)
goto cleanup;
libxlDriverLock(driver);
vm = virDomainObjListFindByID(driver->domains, event->domid);
libxlDriverUnlock(driver);
if (!vm)
goto cleanup;
switch (xl_reason) {
case LIBXL_SHUTDOWN_REASON_POWEROFF:
case LIBXL_SHUTDOWN_REASON_CRASH:
if (xl_reason == LIBXL_SHUTDOWN_REASON_CRASH) {
dom_event = virDomainEventNewFromObj(vm,
VIR_DOMAIN_EVENT_STOPPED,
VIR_DOMAIN_EVENT_STOPPED_CRASHED);
reason = VIR_DOMAIN_SHUTOFF_CRASHED;
} else {
reason = VIR_DOMAIN_SHUTOFF_SHUTDOWN;
}
libxlVmReap(driver, vm, reason);
if (!vm->persistent) {
virDomainObjListRemove(driver->domains, vm);
vm = NULL;
}
break;
case LIBXL_SHUTDOWN_REASON_REBOOT:
libxlVmReap(driver, vm, VIR_DOMAIN_SHUTOFF_SHUTDOWN);
libxlVmStart(driver, vm, 0, -1);
break;
default:
VIR_INFO("Unhandled shutdown_reason %d", xl_reason);
break;
}
}
cleanup:
if (vm)
virObjectUnlock(vm);
if (dom_event) {
libxlDriverLock(driver);
libxlDomainEventQueue(driver, dom_event);
libxlDriverUnlock(driver);
}
}
static const struct libxl_event_hooks ev_hooks = {
.event_occurs_mask = LIBXL_EVENTMASK_ALL,
.event_occurs = libxlEventHandler,
.disaster = NULL,
};
/*
* Register domain events with libxenlight and insert event handles
* in libvirt's event loop.
*/
static int
libxlCreateDomEvents(virDomainObjPtr vm)
{
libxlDomainObjPrivatePtr priv = vm->privateData;
libxl_event_register_callbacks(priv->ctx, &ev_hooks, vm);
if (libxl_evenable_domain_death(priv->ctx, vm->def->id, 0, &priv->deathW))
goto error;
return 0;
error:
if (priv->deathW) {
libxl_evdisable_domain_death(priv->ctx, priv->deathW);
priv->deathW = NULL;
}
return -1;
}
static int
libxlDomainSetVcpuAffinities(libxlDriverPrivatePtr driver, virDomainObjPtr vm)
{
libxlDomainObjPrivatePtr priv = vm->privateData;
virDomainDefPtr def = vm->def;
libxl_bitmap map;
uint8_t *cpumask = NULL;
uint8_t *cpumap = NULL;
virNodeInfo nodeinfo;
size_t cpumaplen;
int vcpu, i;
int ret = -1;
if (libxlDoNodeGetInfo(driver, &nodeinfo) < 0)
goto cleanup;
cpumaplen = VIR_CPU_MAPLEN(VIR_NODEINFO_MAXCPUS(nodeinfo));
for (vcpu = 0; vcpu < def->cputune.nvcpupin; ++vcpu) {
if (vcpu != def->cputune.vcpupin[vcpu]->vcpuid)
continue;
if (VIR_ALLOC_N(cpumap, cpumaplen) < 0) {
virReportOOMError();
goto cleanup;
}
cpumask = (uint8_t*) def->cputune.vcpupin[vcpu]->cpumask;
for (i = 0; i < VIR_DOMAIN_CPUMASK_LEN; ++i) {
if (cpumask[i])
VIR_USE_CPU(cpumap, i);
}
map.size = cpumaplen;
map.map = cpumap;
if (libxl_set_vcpuaffinity(priv->ctx, def->id, vcpu, &map) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to pin vcpu '%d' with libxenlight"), vcpu);
goto cleanup;
}
VIR_FREE(cpumap);
}
ret = 0;
cleanup:
VIR_FREE(cpumap);
return ret;
}
static int
libxlFreeMem(libxlDomainObjPrivatePtr priv, libxl_domain_config *d_config)
{
uint32_t needed_mem;
uint32_t free_mem;
int i;
int ret = -1;
int tries = 3;
int wait_secs = 10;
if ((ret = libxl_domain_need_memory(priv->ctx, &d_config->b_info,
&needed_mem)) >= 0) {
for (i = 0; i < tries; ++i) {
if ((ret = libxl_get_free_memory(priv->ctx, &free_mem)) < 0)
break;
if (free_mem >= needed_mem) {
ret = 0;
break;
}
if ((ret = libxl_set_memory_target(priv->ctx, 0,
free_mem - needed_mem,
/* relative */ 1, 0)) < 0)
break;
ret = libxl_wait_for_free_memory(priv->ctx, 0, needed_mem,
wait_secs);
if (ret == 0 || ret != ERROR_NOMEM)
break;
if ((ret = libxl_wait_for_memory_target(priv->ctx, 0, 1)) < 0)
break;
}
}
return ret;
}
/*
* Start a domain through libxenlight.
*
* virDomainObjPtr should be locked on invocation
*/
static int
libxlVmStart(libxlDriverPrivatePtr driver, virDomainObjPtr vm,
bool start_paused, int restore_fd)
{
libxl_domain_config d_config;
virDomainDefPtr def = NULL;
virDomainEventPtr event = NULL;
libxlSavefileHeader hdr;
int ret;
uint32_t domid = 0;
char *dom_xml = NULL;
char *managed_save_path = NULL;
int managed_save_fd = -1;
libxlDomainObjPrivatePtr priv = vm->privateData;
/* If there is a managed saved state restore it instead of starting
* from scratch. The old state is removed once the restoring succeeded. */
if (restore_fd < 0) {
managed_save_path = libxlDomainManagedSavePath(driver, vm);
if (managed_save_path == NULL)
goto error;
if (virFileExists(managed_save_path)) {
managed_save_fd = libxlSaveImageOpen(driver, managed_save_path,
&def, &hdr);
if (managed_save_fd < 0)
goto error;
restore_fd = managed_save_fd;
if (STRNEQ(vm->def->name, def->name) ||
memcmp(vm->def->uuid, def->uuid, VIR_UUID_BUFLEN)) {
char vm_uuidstr[VIR_UUID_STRING_BUFLEN];
char def_uuidstr[VIR_UUID_STRING_BUFLEN];
virUUIDFormat(vm->def->uuid, vm_uuidstr);
virUUIDFormat(def->uuid, def_uuidstr);
virReportError(VIR_ERR_OPERATION_FAILED,
_("cannot restore domain '%s' uuid %s from a file"
" which belongs to domain '%s' uuid %s"),
vm->def->name, vm_uuidstr, def->name, def_uuidstr);
goto error;
}
virDomainObjAssignDef(vm, def, true, NULL);
def = NULL;
if (unlink(managed_save_path) < 0) {
VIR_WARN("Failed to remove the managed state %s",
managed_save_path);
}
vm->hasManagedSave = false;
}
VIR_FREE(managed_save_path);
}
libxl_domain_config_init(&d_config);
if (libxlBuildDomainConfig(driver, vm->def, &d_config) < 0)
goto error;
if (libxlFreeMem(priv, &d_config) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("libxenlight failed to get free memory for domain '%s'"),
d_config.c_info.name);
goto error;
}
/* use as synchronous operations => ao_how = NULL and no intermediate reports => ao_progress = NULL */
if (restore_fd < 0)
ret = libxl_domain_create_new(priv->ctx, &d_config,
&domid, NULL, NULL);
else
ret = libxl_domain_create_restore(priv->ctx, &d_config, &domid,
restore_fd, NULL, NULL);
if (ret) {
if (restore_fd < 0)
virReportError(VIR_ERR_INTERNAL_ERROR,
_("libxenlight failed to create new domain '%s'"),
d_config.c_info.name);
else
virReportError(VIR_ERR_INTERNAL_ERROR,
_("libxenlight failed to restore domain '%s'"),
d_config.c_info.name);
goto error;
}
vm->def->id = domid;
if ((dom_xml = virDomainDefFormat(vm->def, 0)) == NULL)
goto error;
if (libxl_userdata_store(priv->ctx, domid, "libvirt-xml",
(uint8_t *)dom_xml, strlen(dom_xml) + 1)) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("libxenlight failed to store userdata"));
goto error;
}
if (libxlCreateDomEvents(vm) < 0)
goto error;
if (libxlDomainSetVcpuAffinities(driver, vm) < 0)
goto error;
if (!start_paused) {
libxl_domain_unpause(priv->ctx, domid);
virDomainObjSetState(vm, VIR_DOMAIN_RUNNING, VIR_DOMAIN_RUNNING_BOOTED);
} else {
virDomainObjSetState(vm, VIR_DOMAIN_PAUSED, VIR_DOMAIN_PAUSED_USER);
}
if (virDomainSaveStatus(driver->xmlopt, driver->stateDir, vm) < 0)
goto error;
if (!driver->nactive && driver->inhibitCallback)
driver->inhibitCallback(true, driver->inhibitOpaque);
driver->nactive++;
event = virDomainEventNewFromObj(vm, VIR_DOMAIN_EVENT_STARTED,
restore_fd < 0 ?
VIR_DOMAIN_EVENT_STARTED_BOOTED :
VIR_DOMAIN_EVENT_STARTED_RESTORED);
if (event)
libxlDomainEventQueue(driver, event);
libxl_domain_config_dispose(&d_config);
VIR_FREE(dom_xml);
VIR_FORCE_CLOSE(managed_save_fd);
return 0;
error:
if (domid > 0) {
libxl_domain_destroy(priv->ctx, domid, NULL);
vm->def->id = -1;
virDomainObjSetState(vm, VIR_DOMAIN_SHUTOFF, VIR_DOMAIN_SHUTOFF_FAILED);
}
libxl_domain_config_dispose(&d_config);
VIR_FREE(dom_xml);
VIR_FREE(managed_save_path);
virDomainDefFree(def);
VIR_FORCE_CLOSE(managed_save_fd);
return -1;
}
/*
* Reconnect to running domains that were previously started/created
* with libxenlight driver.
*/
static int
libxlReconnectDomain(virDomainObjPtr vm,
void *opaque)
{
libxlDriverPrivatePtr driver = opaque;
int rc;
libxl_dominfo d_info;
int len;
uint8_t *data = NULL;
virObjectLock(vm);
/* Does domain still exist? */
rc = libxl_domain_info(driver->ctx, &d_info, vm->def->id);
if (rc == ERROR_INVAL) {
goto out;
} else if (rc != 0) {
VIR_DEBUG("libxl_domain_info failed (code %d), ignoring domain %d",
rc, vm->def->id);
goto out;
}
/* Is this a domain that was under libvirt control? */
if (libxl_userdata_retrieve(driver->ctx, vm->def->id,
"libvirt-xml", &data, &len)) {
VIR_DEBUG("libxl_userdata_retrieve failed, ignoring domain %d", vm->def->id);
goto out;
}
/* Update domid in case it changed (e.g. reboot) while we were gone? */
vm->def->id = d_info.domid;
virDomainObjSetState(vm, VIR_DOMAIN_RUNNING, VIR_DOMAIN_RUNNING_UNKNOWN);
if (!driver->nactive && driver->inhibitCallback)
driver->inhibitCallback(true, driver->inhibitOpaque);
driver->nactive++;
/* Recreate domain death et. al. events */
libxlCreateDomEvents(vm);
virObjectUnlock(vm);
return 0;
out:
libxlVmCleanup(driver, vm, VIR_DOMAIN_SHUTOFF_UNKNOWN);
if (!vm->persistent)
virDomainObjListRemove(driver->domains, vm);
else
virObjectUnlock(vm);
return -1;
}
static void
libxlReconnectDomains(libxlDriverPrivatePtr driver)
{
virDomainObjListForEach(driver->domains, libxlReconnectDomain, driver);
}
static int
libxlShutdown(void)
{
if (!libxl_driver)
return -1;
libxlDriverLock(libxl_driver);
virObjectUnref(libxl_driver->caps);
virObjectUnref(libxl_driver->xmlopt);
virObjectUnref(libxl_driver->domains);
libxl_ctx_free(libxl_driver->ctx);
xtl_logger_destroy(libxl_driver->logger);
if (libxl_driver->logger_file)
VIR_FORCE_FCLOSE(libxl_driver->logger_file);
virObjectUnref(libxl_driver->reservedVNCPorts);
VIR_FREE(libxl_driver->configDir);
VIR_FREE(libxl_driver->autostartDir);
VIR_FREE(libxl_driver->logDir);
VIR_FREE(libxl_driver->stateDir);
VIR_FREE(libxl_driver->libDir);
VIR_FREE(libxl_driver->saveDir);
virDomainEventStateFree(libxl_driver->domainEventState);
libxlDriverUnlock(libxl_driver);
virMutexDestroy(&libxl_driver->lock);
VIR_FREE(libxl_driver);
return 0;
}
static int
libxlStartup(bool privileged,
virStateInhibitCallback callback ATTRIBUTE_UNUSED,
void *opaque ATTRIBUTE_UNUSED)
{
const libxl_version_info *ver_info;
char *log_file = NULL;
virCommandPtr cmd;
int status, ret = 0;
char ebuf[1024];
/* Disable libxl driver if non-root */
if (!privileged) {
VIR_INFO("Not running privileged, disabling libxenlight driver");
return 0;
}
/* Disable driver if legacy xen toolstack (xend) is in use */
cmd = virCommandNewArgList("/usr/sbin/xend", "status", NULL);
if (virCommandRun(cmd, &status) == 0 && status == 0) {
VIR_INFO("Legacy xen tool stack seems to be in use, disabling "
"libxenlight driver.");
virCommandFree(cmd);
return 0;
}
virCommandFree(cmd);
if (VIR_ALLOC(libxl_driver) < 0)
return -1;
if (virMutexInit(&libxl_driver->lock) < 0) {
VIR_ERROR(_("cannot initialize mutex"));
VIR_FREE(libxl_driver);
return -1;
}
libxlDriverLock(libxl_driver);
/* Allocate bitmap for vnc port reservation */
if (!(libxl_driver->reservedVNCPorts =
virPortAllocatorNew(LIBXL_VNC_PORT_MIN,
LIBXL_VNC_PORT_MAX)))
goto error;
if (!(libxl_driver->domains = virDomainObjListNew()))
goto error;
if (virAsprintf(&libxl_driver->configDir,
"%s", LIBXL_CONFIG_DIR) == -1)
goto out_of_memory;
if (virAsprintf(&libxl_driver->autostartDir,
"%s", LIBXL_AUTOSTART_DIR) == -1)
goto out_of_memory;
if (virAsprintf(&libxl_driver->logDir,
"%s", LIBXL_LOG_DIR) == -1)
goto out_of_memory;
if (virAsprintf(&libxl_driver->stateDir,
"%s", LIBXL_STATE_DIR) == -1)
goto out_of_memory;
if (virAsprintf(&libxl_driver->libDir,
"%s", LIBXL_LIB_DIR) == -1)
goto out_of_memory;
if (virAsprintf(&libxl_driver->saveDir,
"%s", LIBXL_SAVE_DIR) == -1)
goto out_of_memory;
if (virFileMakePath(libxl_driver->logDir) < 0) {
VIR_ERROR(_("Failed to create log dir '%s': %s"),
libxl_driver->logDir, virStrerror(errno, ebuf, sizeof(ebuf)));
goto error;
}
if (virFileMakePath(libxl_driver->stateDir) < 0) {
VIR_ERROR(_("Failed to create state dir '%s': %s"),
libxl_driver->stateDir, virStrerror(errno, ebuf, sizeof(ebuf)));
goto error;
}
if (virFileMakePath(libxl_driver->libDir) < 0) {
VIR_ERROR(_("Failed to create lib dir '%s': %s"),
libxl_driver->libDir, virStrerror(errno, ebuf, sizeof(ebuf)));
goto error;
}
if (virFileMakePath(libxl_driver->saveDir) < 0) {
VIR_ERROR(_("Failed to create save dir '%s': %s"),
libxl_driver->saveDir, virStrerror(errno, ebuf, sizeof(ebuf)));
goto error;
}
if (virAsprintf(&log_file, "%s/libxl.log", libxl_driver->logDir) < 0) {
goto out_of_memory;
}
if ((libxl_driver->logger_file = fopen(log_file, "a")) == NULL) {
virReportSystemError(errno,
_("failed to create logfile %s"),
log_file);
goto error;
}
VIR_FREE(log_file);
libxl_driver->domainEventState = virDomainEventStateNew();
if (!libxl_driver->domainEventState)
goto error;
libxl_driver->logger =
(xentoollog_logger *)xtl_createlogger_stdiostream(libxl_driver->logger_file, XTL_DEBUG, 0);
if (!libxl_driver->logger) {
VIR_INFO("cannot create logger for libxenlight, disabling driver");
goto fail;
}
if (libxl_ctx_alloc(&libxl_driver->ctx,
LIBXL_VERSION, 0,
libxl_driver->logger)) {
VIR_INFO("cannot initialize libxenlight context, probably not running in a Xen Dom0, disabling driver");
goto fail;
}
if ((ver_info = libxl_get_version_info(libxl_driver->ctx)) == NULL) {
VIR_INFO("cannot version information from libxenlight, disabling driver");
goto fail;
}
libxl_driver->version = (ver_info->xen_version_major * 1000000) +
(ver_info->xen_version_minor * 1000);
if ((libxl_driver->caps =
libxlMakeCapabilities(libxl_driver->ctx)) == NULL) {
VIR_ERROR(_("cannot create capabilities for libxenlight"));
goto error;
}
if (!(libxl_driver->xmlopt = virDomainXMLOptionNew(&libxlDomainDefParserConfig,
&libxlDomainXMLPrivateDataCallbacks,
NULL)))
goto error;
/* Load running domains first. */
if (virDomainObjListLoadAllConfigs(libxl_driver->domains,
libxl_driver->stateDir,
libxl_driver->autostartDir,
1,
libxl_driver->caps,
libxl_driver->xmlopt,
1 << VIR_DOMAIN_VIRT_XEN,
NULL, NULL) < 0)
goto error;
libxlReconnectDomains(libxl_driver);
/* Then inactive persistent configs */
if (virDomainObjListLoadAllConfigs(libxl_driver->domains,
libxl_driver->configDir,
libxl_driver->autostartDir,
0,
libxl_driver->caps,
libxl_driver->xmlopt,
1 << VIR_DOMAIN_VIRT_XEN,
NULL, NULL) < 0)
goto error;
virDomainObjListForEach(libxl_driver->domains, libxlAutostartDomain,
libxl_driver);
virDomainObjListForEach(libxl_driver->domains, libxlDomainManagedSaveLoad,
libxl_driver);
libxlDriverUnlock(libxl_driver);
return 0;
out_of_memory:
virReportOOMError();
error:
ret = -1;
fail:
VIR_FREE(log_file);
if (libxl_driver)
libxlDriverUnlock(libxl_driver);
libxlShutdown();
return ret;
}
static int
libxlReload(void)
{
if (!libxl_driver)
return 0;
libxlDriverLock(libxl_driver);
virDomainObjListLoadAllConfigs(libxl_driver->domains,
libxl_driver->configDir,
libxl_driver->autostartDir,
1,
libxl_driver->caps,
libxl_driver->xmlopt,
1 << VIR_DOMAIN_VIRT_XEN,
NULL, libxl_driver);
virDomainObjListForEach(libxl_driver->domains, libxlAutostartDomain,
libxl_driver);
libxlDriverUnlock(libxl_driver);
return 0;
}
static virDrvOpenStatus
libxlOpen(virConnectPtr conn,
virConnectAuthPtr auth ATTRIBUTE_UNUSED,
unsigned int flags)
{
virCheckFlags(VIR_CONNECT_RO, VIR_DRV_OPEN_ERROR);
if (conn->uri == NULL) {
if (libxl_driver == NULL)
return VIR_DRV_OPEN_DECLINED;
if (!(conn->uri = virURIParse("xen:///")))
return VIR_DRV_OPEN_ERROR;
} else {
/* Only xen scheme */
if (conn->uri->scheme == NULL || STRNEQ(conn->uri->scheme, "xen"))
return VIR_DRV_OPEN_DECLINED;
/* If server name is given, its for remote driver */
if (conn->uri->server != NULL)
return VIR_DRV_OPEN_DECLINED;
/* 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 (conn->uri->path &&
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:///"),
NULLSTR(conn->uri->path));
return VIR_DRV_OPEN_ERROR;
}
}
conn->privateData = libxl_driver;
return VIR_DRV_OPEN_SUCCESS;
};
static int
libxlClose(virConnectPtr conn ATTRIBUTE_UNUSED)
{
conn->privateData = NULL;
return 0;
}
static const char *
libxlGetType(virConnectPtr conn ATTRIBUTE_UNUSED)
{
return "xenlight";
}
static int
libxlGetVersion(virConnectPtr conn, unsigned long *version)
{
libxlDriverPrivatePtr driver = conn->privateData;
libxlDriverLock(driver);
*version = driver->version;
libxlDriverUnlock(driver);
return 0;
}
static int
libxlGetMaxVcpus(virConnectPtr conn, const char *type ATTRIBUTE_UNUSED)
{
int ret;
libxlDriverPrivatePtr driver = conn->privateData;
ret = libxl_get_max_cpus(driver->ctx);
/* libxl_get_max_cpus() will return 0 if there were any failures,
e.g. xc_physinfo() failing */
if (ret == 0)
return -1;
return ret;
}
static int
libxlNodeGetInfo(virConnectPtr conn, virNodeInfoPtr info)
{
return libxlDoNodeGetInfo(conn->privateData, info);
}
static char *
libxlGetCapabilities(virConnectPtr conn)
{
libxlDriverPrivatePtr driver = conn->privateData;
char *xml;
libxlDriverLock(driver);
if ((xml = virCapabilitiesFormatXML(driver->caps)) == NULL)
virReportOOMError();
libxlDriverUnlock(driver);
return xml;
}
static int
libxlListDomains(virConnectPtr conn, int *ids, int nids)
{
libxlDriverPrivatePtr driver = conn->privateData;
int n;
libxlDriverLock(driver);
n = virDomainObjListGetActiveIDs(driver->domains, ids, nids);
libxlDriverUnlock(driver);
return n;
}
static int
libxlNumDomains(virConnectPtr conn)
{
libxlDriverPrivatePtr driver = conn->privateData;
int n;
libxlDriverLock(driver);
n = virDomainObjListNumOfDomains(driver->domains, 1);
libxlDriverUnlock(driver);
return n;
}
static virDomainPtr
libxlDomainCreateXML(virConnectPtr conn, const char *xml,
unsigned int flags)
{
libxlDriverPrivatePtr driver = conn->privateData;
virDomainDefPtr def;
virDomainObjPtr vm = NULL;
virDomainPtr dom = NULL;
virCheckFlags(VIR_DOMAIN_START_PAUSED, NULL);
libxlDriverLock(driver);
if (!(def = virDomainDefParseString(xml, driver->caps, driver->xmlopt,
1 << VIR_DOMAIN_VIRT_XEN,
VIR_DOMAIN_XML_INACTIVE)))
goto cleanup;
if (!(vm = virDomainObjListAdd(driver->domains, def,
driver->xmlopt,
VIR_DOMAIN_OBJ_LIST_ADD_CHECK_LIVE,
NULL)))
goto cleanup;
def = NULL;
if (libxlVmStart(driver, vm, (flags & VIR_DOMAIN_START_PAUSED) != 0,
-1) < 0) {
virDomainObjListRemove(driver->domains, vm);
vm = NULL;
goto cleanup;
}
dom = virGetDomain(conn, vm->def->name, vm->def->uuid);
if (dom)
dom->id = vm->def->id;
cleanup:
virDomainDefFree(def);
if (vm)
virObjectUnlock(vm);
libxlDriverUnlock(driver);
return dom;
}
static virDomainPtr
libxlDomainLookupByID(virConnectPtr conn, int id)
{
libxlDriverPrivatePtr driver = conn->privateData;
virDomainObjPtr vm;
virDomainPtr dom = NULL;
libxlDriverLock(driver);
vm = virDomainObjListFindByID(driver->domains, id);
libxlDriverUnlock(driver);
if (!vm) {
virReportError(VIR_ERR_NO_DOMAIN, NULL);
goto cleanup;
}
dom = virGetDomain(conn, vm->def->name, vm->def->uuid);
if (dom)
dom->id = vm->def->id;
cleanup:
if (vm)
virObjectUnlock(vm);
return dom;
}
static virDomainPtr
libxlDomainLookupByUUID(virConnectPtr conn, const unsigned char *uuid)
{
libxlDriverPrivatePtr driver = conn->privateData;
virDomainObjPtr vm;
virDomainPtr dom = NULL;
libxlDriverLock(driver);
vm = virDomainObjListFindByUUID(driver->domains, uuid);
libxlDriverUnlock(driver);
if (!vm) {
virReportError(VIR_ERR_NO_DOMAIN, NULL);
goto cleanup;
}
dom = virGetDomain(conn, vm->def->name, vm->def->uuid);
if (dom)
dom->id = vm->def->id;
cleanup:
if (vm)
virObjectUnlock(vm);
return dom;
}
static virDomainPtr
libxlDomainLookupByName(virConnectPtr conn, const char *name)
{
libxlDriverPrivatePtr driver = conn->privateData;
virDomainObjPtr vm;
virDomainPtr dom = NULL;
libxlDriverLock(driver);
vm = virDomainObjListFindByName(driver->domains, name);
libxlDriverUnlock(driver);
if (!vm) {
virReportError(VIR_ERR_NO_DOMAIN, NULL);
goto cleanup;
}
dom = virGetDomain(conn, vm->def->name, vm->def->uuid);
if (dom)
dom->id = vm->def->id;
cleanup:
if (vm)
virObjectUnlock(vm);
return dom;
}
static int
libxlDomainSuspend(virDomainPtr dom)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr vm;
libxlDomainObjPrivatePtr priv;
virDomainEventPtr event = NULL;
int ret = -1;
libxlDriverLock(driver);
vm = virDomainObjListFindByUUID(driver->domains, dom->uuid);
libxlDriverUnlock(driver);
if (!vm) {
char uuidstr[VIR_UUID_STRING_BUFLEN];
virUUIDFormat(dom->uuid, uuidstr);
virReportError(VIR_ERR_NO_DOMAIN,
_("No domain with matching uuid '%s'"), uuidstr);
goto cleanup;
}
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s", _("Domain is not running"));
goto cleanup;
}
priv = vm->privateData;
if (virDomainObjGetState(vm, NULL) != VIR_DOMAIN_PAUSED) {
if (libxl_domain_pause(priv->ctx, dom->id) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to suspend domain '%d' with libxenlight"),
dom->id);
goto cleanup;
}
virDomainObjSetState(vm, VIR_DOMAIN_PAUSED, VIR_DOMAIN_PAUSED_USER);
event = virDomainEventNewFromObj(vm, VIR_DOMAIN_EVENT_SUSPENDED,
VIR_DOMAIN_EVENT_SUSPENDED_PAUSED);
}
if (virDomainSaveStatus(driver->xmlopt, driver->stateDir, vm) < 0)
goto cleanup;
ret = 0;
cleanup:
if (vm)
virObjectUnlock(vm);
if (event) {
libxlDriverLock(driver);
libxlDomainEventQueue(driver, event);
libxlDriverUnlock(driver);
}
return ret;
}
static int
libxlDomainResume(virDomainPtr dom)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr vm;
libxlDomainObjPrivatePtr priv;
virDomainEventPtr event = NULL;
int ret = -1;
libxlDriverLock(driver);
vm = virDomainObjListFindByUUID(driver->domains, dom->uuid);
libxlDriverUnlock(driver);
if (!vm) {
char uuidstr[VIR_UUID_STRING_BUFLEN];
virUUIDFormat(dom->uuid, uuidstr);
virReportError(VIR_ERR_NO_DOMAIN,
_("No domain with matching uuid '%s'"), uuidstr);
goto cleanup;
}
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s", _("Domain is not running"));
goto cleanup;
}
priv = vm->privateData;
if (virDomainObjGetState(vm, NULL) == VIR_DOMAIN_PAUSED) {
if (libxl_domain_unpause(priv->ctx, dom->id) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to resume domain '%d' with libxenlight"),
dom->id);
goto cleanup;
}
virDomainObjSetState(vm, VIR_DOMAIN_RUNNING,
VIR_DOMAIN_RUNNING_UNPAUSED);
event = virDomainEventNewFromObj(vm, VIR_DOMAIN_EVENT_RESUMED,
VIR_DOMAIN_EVENT_RESUMED_UNPAUSED);
}
if (virDomainSaveStatus(driver->xmlopt, driver->stateDir, vm) < 0)
goto cleanup;
ret = 0;
cleanup:
if (vm)
virObjectUnlock(vm);
if (event) {
libxlDriverLock(driver);
libxlDomainEventQueue(driver, event);
libxlDriverUnlock(driver);
}
return ret;
}
static int
libxlDomainShutdownFlags(virDomainPtr dom, unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
libxlDomainObjPrivatePtr priv;
virCheckFlags(0, -1);
libxlDriverLock(driver);
vm = virDomainObjListFindByUUID(driver->domains, dom->uuid);
if (!vm) {
char uuidstr[VIR_UUID_STRING_BUFLEN];
virUUIDFormat(dom->uuid, uuidstr);
virReportError(VIR_ERR_NO_DOMAIN,
_("No domain with matching uuid '%s'"), uuidstr);
goto cleanup;
}
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("Domain is not running"));
goto cleanup;
}
priv = vm->privateData;
if (libxl_domain_shutdown(priv->ctx, dom->id) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to shutdown domain '%d' with libxenlight"),
dom->id);
goto cleanup;
}
/* vm is marked shutoff (or removed from domains list if not persistent)
* in shutdown event handler.
*/
ret = 0;
cleanup:
if (vm)
virObjectUnlock(vm);
libxlDriverUnlock(driver);
return ret;
}
static int
libxlDomainShutdown(virDomainPtr dom)
{
return libxlDomainShutdownFlags(dom, 0);
}
static int
libxlDomainReboot(virDomainPtr dom, unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
libxlDomainObjPrivatePtr priv;
virCheckFlags(0, -1);
libxlDriverLock(driver);
vm = virDomainObjListFindByUUID(driver->domains, dom->uuid);
if (!vm) {
char uuidstr[VIR_UUID_STRING_BUFLEN];
virUUIDFormat(dom->uuid, uuidstr);
virReportError(VIR_ERR_NO_DOMAIN,
_("No domain with matching uuid '%s'"), uuidstr);
goto cleanup;
}
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("Domain is not running"));
goto cleanup;
}
priv = vm->privateData;
if (libxl_domain_reboot(priv->ctx, dom->id) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to reboot domain '%d' with libxenlight"),
dom->id);
goto cleanup;
}
ret = 0;
cleanup:
if (vm)
virObjectUnlock(vm);
libxlDriverUnlock(driver);
return ret;
}
static int
libxlDomainDestroyFlags(virDomainPtr dom,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
virDomainEventPtr event = NULL;
virCheckFlags(0, -1);
libxlDriverLock(driver);
vm = virDomainObjListFindByUUID(driver->domains, dom->uuid);
if (!vm) {
char uuidstr[VIR_UUID_STRING_BUFLEN];
virUUIDFormat(dom->uuid, uuidstr);
virReportError(VIR_ERR_NO_DOMAIN,
_("No domain with matching uuid '%s'"), uuidstr);
goto cleanup;
}
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("Domain is not running"));
goto cleanup;
}
event = virDomainEventNewFromObj(vm,VIR_DOMAIN_EVENT_STOPPED,
VIR_DOMAIN_EVENT_STOPPED_DESTROYED);
if (libxlVmReap(driver, vm, VIR_DOMAIN_SHUTOFF_DESTROYED) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to destroy domain '%d'"), dom->id);
goto cleanup;
}
if (!vm->persistent) {
virDomainObjListRemove(driver->domains, vm);
vm = NULL;
}
ret = 0;
cleanup:
if (vm)
virObjectUnlock(vm);
if (event)
libxlDomainEventQueue(driver, event);
libxlDriverUnlock(driver);
return ret;
}
static int
libxlDomainDestroy(virDomainPtr dom)
{
return libxlDomainDestroyFlags(dom, 0);
}
static char *
libxlDomainGetOSType(virDomainPtr dom)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr vm;
char *type = NULL;
libxlDriverLock(driver);
vm = virDomainObjListFindByUUID(driver->domains, dom->uuid);
libxlDriverUnlock(driver);
if (!vm) {
char uuidstr[VIR_UUID_STRING_BUFLEN];
virUUIDFormat(dom->uuid, uuidstr);
virReportError(VIR_ERR_NO_DOMAIN,
_("No domain with matching uuid '%s'"), uuidstr);
goto cleanup;
}
if (!(type = strdup(vm->def->os.type)))
virReportOOMError();
cleanup:
if (vm)
virObjectUnlock(vm);
return type;
}
static unsigned long long
libxlDomainGetMaxMemory(virDomainPtr dom)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr vm;
unsigned long long ret = 0;
libxlDriverLock(driver);
vm = virDomainObjListFindByUUID(driver->domains, dom->uuid);
libxlDriverUnlock(driver);
if (!vm) {
virReportError(VIR_ERR_NO_DOMAIN, "%s", _("no domain with matching uuid"));
goto cleanup;
}
ret = vm->def->mem.max_balloon;
cleanup:
if (vm)
virObjectUnlock(vm);
return ret;
}
static int
libxlDomainSetMemoryFlags(virDomainPtr dom, unsigned long newmem,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDomainObjPrivatePtr priv;
virDomainObjPtr vm;
virDomainDefPtr persistentDef = NULL;
bool isActive;
int ret = -1;
virCheckFlags(VIR_DOMAIN_MEM_LIVE |
VIR_DOMAIN_MEM_CONFIG |
VIR_DOMAIN_MEM_MAXIMUM, -1);
libxlDriverLock(driver);
vm = virDomainObjListFindByUUID(driver->domains, dom->uuid);
libxlDriverUnlock(driver);
if (!vm) {
virReportError(VIR_ERR_NO_DOMAIN, "%s", _("no domain with matching uuid"));
goto cleanup;
}
isActive = virDomainObjIsActive(vm);
if (flags == VIR_DOMAIN_MEM_CURRENT) {
if (isActive)
flags = VIR_DOMAIN_MEM_LIVE;
else
flags = VIR_DOMAIN_MEM_CONFIG;
}
if (flags == VIR_DOMAIN_MEM_MAXIMUM) {
if (isActive)
flags = VIR_DOMAIN_MEM_LIVE | VIR_DOMAIN_MEM_MAXIMUM;
else
flags = VIR_DOMAIN_MEM_CONFIG | VIR_DOMAIN_MEM_MAXIMUM;
}
if (!isActive && (flags & VIR_DOMAIN_MEM_LIVE)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot set memory on an inactive domain"));
goto cleanup;
}
if (flags & VIR_DOMAIN_MEM_CONFIG) {
if (!vm->persistent) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot change persistent config of a transient domain"));
goto cleanup;
}
if (!(persistentDef = virDomainObjGetPersistentDef(driver->caps,
driver->xmlopt,
vm)))
goto cleanup;
}
if (flags & VIR_DOMAIN_MEM_MAXIMUM) {
/* resize the maximum memory */
if (flags & VIR_DOMAIN_MEM_LIVE) {
priv = vm->privateData;
if (libxl_domain_setmaxmem(priv->ctx, dom->id, newmem) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to set maximum memory for domain '%d'"
" with libxenlight"), dom->id);
goto cleanup;
}
}
if (flags & VIR_DOMAIN_MEM_CONFIG) {
/* Help clang 2.8 decipher the logic flow. */
sa_assert(persistentDef);
persistentDef->mem.max_balloon = newmem;
if (persistentDef->mem.cur_balloon > newmem)
persistentDef->mem.cur_balloon = newmem;
ret = virDomainSaveConfig(driver->configDir, persistentDef);
goto cleanup;
}
} else {
/* resize the current memory */
if (newmem > vm->def->mem.max_balloon) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("cannot set memory higher than max memory"));
goto cleanup;
}
if (flags & VIR_DOMAIN_MEM_LIVE) {
priv = vm->privateData;
if (libxl_set_memory_target(priv->ctx, dom->id, newmem, 0,
/* force */ 1) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to set memory for domain '%d'"
" with libxenlight"), dom->id);
goto cleanup;
}
}
if (flags & VIR_DOMAIN_MEM_CONFIG) {
sa_assert(persistentDef);
persistentDef->mem.cur_balloon = newmem;
ret = virDomainSaveConfig(driver->configDir, persistentDef);
goto cleanup;
}
}
ret = 0;
cleanup:
if (vm)
virObjectUnlock(vm);
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;
virDomainObjPtr vm;
libxl_dominfo d_info;
int ret = -1;
libxlDriverLock(driver);
vm = virDomainObjListFindByUUID(driver->domains, dom->uuid);
libxlDriverUnlock(driver);
if (!vm) {
virReportError(VIR_ERR_NO_DOMAIN, "%s",
_("no domain with matching uuid"));
goto cleanup;
}
if (!virDomainObjIsActive(vm)) {
info->cpuTime = 0;
info->memory = vm->def->mem.cur_balloon;
info->maxMem = vm->def->mem.max_balloon;
} else {
if (libxl_domain_info(driver->ctx, &d_info, dom->id) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("libxl_domain_info failed for domain '%d'"), dom->id);
goto cleanup;
}
info->cpuTime = d_info.cpu_time;
info->memory = d_info.current_memkb;
info->maxMem = d_info.max_memkb;
}
info->state = virDomainObjGetState(vm, NULL);
info->nrVirtCpu = vm->def->vcpus;
ret = 0;
cleanup:
if (vm)
virObjectUnlock(vm);
return ret;
}
static int
libxlDomainGetState(virDomainPtr dom,
int *state,
int *reason,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
virCheckFlags(0, -1);
libxlDriverLock(driver);
vm = virDomainObjListFindByUUID(driver->domains, dom->uuid);
libxlDriverUnlock(driver);
if (!vm) {
virReportError(VIR_ERR_NO_DOMAIN, "%s",
_("no domain with matching uuid"));
goto cleanup;
}
*state = virDomainObjGetState(vm, reason);
ret = 0;
cleanup:
if (vm)
virObjectUnlock(vm);
return ret;
}
/* This internal function expects the driver lock to already be held on
* entry and the vm must be active. */
static int
libxlDoDomainSave(libxlDriverPrivatePtr driver, virDomainObjPtr vm,
const char *to)
{
libxlDomainObjPrivatePtr priv = vm->privateData;
libxlSavefileHeader hdr;
virDomainEventPtr 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, 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;
}
if (libxl_domain_suspend(priv->ctx, vm->def->id, fd, 0, NULL) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to save domain '%d' with libxenlight"),
vm->def->id);
goto cleanup;
}
event = virDomainEventNewFromObj(vm, VIR_DOMAIN_EVENT_STOPPED,
VIR_DOMAIN_EVENT_STOPPED_SAVED);
if (libxlVmReap(driver, vm, VIR_DOMAIN_SHUTOFF_SAVED) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to destroy domain '%d'"), vm->def->id);
goto cleanup;
}
vm->hasManagedSave = true;
ret = 0;
cleanup:
VIR_FREE(xml);
if (VIR_CLOSE(fd) < 0)
virReportSystemError(errno, "%s", _("cannot close file"));
if (event)
libxlDomainEventQueue(driver, event);
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;
virCheckFlags(0, -1);
if (dxml) {
virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
_("xml modification unsupported"));
return -1;
}
libxlDriverLock(driver);
vm = virDomainObjListFindByUUID(driver->domains, dom->uuid);
if (!vm) {
char uuidstr[VIR_UUID_STRING_BUFLEN];
virUUIDFormat(dom->uuid, uuidstr);
virReportError(VIR_ERR_NO_DOMAIN,
_("No domain with matching uuid '%s'"), uuidstr);
goto cleanup;
}
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s", _("Domain is not running"));
goto cleanup;
}
if (libxlDoDomainSave(driver, vm, to) < 0)
goto cleanup;
if (!vm->persistent) {
virDomainObjListRemove(driver->domains, vm);
vm = NULL;
}
ret = 0;
cleanup:
if (vm)
virObjectUnlock(vm);
libxlDriverUnlock(driver);
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;
virDomainObjPtr vm = NULL;
virDomainDefPtr def = NULL;
libxlSavefileHeader hdr;
int fd = -1;
int ret = -1;
virCheckFlags(0, -1);
if (dxml) {
virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
_("xml modification unsupported"));
return -1;
}
libxlDriverLock(driver);
fd = libxlSaveImageOpen(driver, from, &def, &hdr);
if (fd < 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 ((ret = libxlVmStart(driver, vm, false, fd)) < 0 &&
!vm->persistent) {
virDomainObjListRemove(driver->domains, vm);
vm = NULL;
}
cleanup:
if (VIR_CLOSE(fd) < 0)
virReportSystemError(errno, "%s", _("cannot close file"));
virDomainDefFree(def);
if (vm)
virObjectUnlock(vm);
libxlDriverUnlock(driver);
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;
libxlDomainObjPrivatePtr priv;
virDomainObjPtr vm;
virDomainEventPtr event = NULL;
bool paused = false;
int ret = -1;
virCheckFlags(VIR_DUMP_LIVE | VIR_DUMP_CRASH, -1);
libxlDriverLock(driver);
vm = virDomainObjListFindByUUID(driver->domains, dom->uuid);
libxlDriverUnlock(driver);
if (!vm) {
char uuidstr[VIR_UUID_STRING_BUFLEN];
virUUIDFormat(dom->uuid, uuidstr);
virReportError(VIR_ERR_NO_DOMAIN,
_("No domain with matching uuid '%s'"), uuidstr);
goto cleanup;
}
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s", _("Domain is not running"));
goto cleanup;
}
priv = vm->privateData;
if (!(flags & VIR_DUMP_LIVE) &&
virDomainObjGetState(vm, NULL) == VIR_DOMAIN_RUNNING) {
if (libxl_domain_pause(priv->ctx, dom->id) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Before dumping core, failed to suspend domain '%d'"
" with libxenlight"),
dom->id);
goto cleanup;
}
virDomainObjSetState(vm, VIR_DOMAIN_PAUSED, VIR_DOMAIN_PAUSED_DUMP);
paused = true;
}
if (libxl_domain_core_dump(priv->ctx, dom->id, to, NULL) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to dump core of domain '%d' with libxenlight"),
dom->id);
goto cleanup_unpause;
}
libxlDriverLock(driver);
if (flags & VIR_DUMP_CRASH) {
if (libxlVmReap(driver, vm, VIR_DOMAIN_SHUTOFF_CRASHED) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to destroy domain '%d'"), dom->id);
goto cleanup_unlock;
}
event = virDomainEventNewFromObj(vm, VIR_DOMAIN_EVENT_STOPPED,
VIR_DOMAIN_EVENT_STOPPED_CRASHED);
}
if ((flags & VIR_DUMP_CRASH) && !vm->persistent) {
virDomainObjListRemove(driver->domains, vm);
vm = NULL;
}
ret = 0;
cleanup_unlock:
libxlDriverUnlock(driver);
cleanup_unpause:
if (virDomainObjIsActive(vm) && paused) {
if (libxl_domain_unpause(priv->ctx, dom->id) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("After dumping core, failed to resume domain '%d' with"
" libxenlight"), dom->id);
} else {
virDomainObjSetState(vm, VIR_DOMAIN_RUNNING,
VIR_DOMAIN_RUNNING_UNPAUSED);
}
}
cleanup:
if (vm)
virObjectUnlock(vm);
if (event) {
libxlDriverLock(driver);
libxlDomainEventQueue(driver, event);
libxlDriverUnlock(driver);
}
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);
libxlDriverLock(driver);
vm = virDomainObjListFindByUUID(driver->domains, dom->uuid);
if (!vm) {
char uuidstr[VIR_UUID_STRING_BUFLEN];
virUUIDFormat(dom->uuid, uuidstr);
virReportError(VIR_ERR_NO_DOMAIN,
_("No domain with matching uuid '%s'"), uuidstr);
goto cleanup;
}
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s", _("Domain is not running"));
goto cleanup;
}
if (!vm->persistent) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot do managed save for transient domain"));
goto cleanup;
}
name = libxlDomainManagedSavePath(driver, vm);
if (name == NULL)
goto cleanup;
VIR_INFO("Saving state to %s", name);
if (libxlDoDomainSave(driver, vm, name) < 0)
goto cleanup;
if (!vm->persistent) {
virDomainObjListRemove(driver->domains, vm);
vm = NULL;
}
ret = 0;
cleanup:
if (vm)
virObjectUnlock(vm);
libxlDriverUnlock(driver);
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)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr vm = NULL;
int ret = -1;
virCheckFlags(0, -1);
libxlDriverLock(driver);
vm = virDomainObjListFindByUUID(driver->domains, dom->uuid);
if (!vm) {
char uuidstr[VIR_UUID_STRING_BUFLEN];
virUUIDFormat(dom->uuid, uuidstr);
virReportError(VIR_ERR_NO_DOMAIN,
_("No domain with matching uuid '%s'"), uuidstr);
goto cleanup;
}
ret = vm->hasManagedSave;
cleanup:
if (vm)
virObjectUnlock(vm);
libxlDriverUnlock(driver);
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);
libxlDriverLock(driver);
vm = virDomainObjListFindByUUID(driver->domains, dom->uuid);
if (!vm) {
char uuidstr[VIR_UUID_STRING_BUFLEN];
virUUIDFormat(dom->uuid, uuidstr);
virReportError(VIR_ERR_NO_DOMAIN,
_("No domain with matching uuid '%s'"), uuidstr);
goto cleanup;
}
name = libxlDomainManagedSavePath(driver, vm);
if (name == NULL)
goto cleanup;
ret = unlink(name);
vm->hasManagedSave = false;
cleanup:
VIR_FREE(name);
if (vm)
virObjectUnlock(vm);
libxlDriverUnlock(driver);
return ret;
}
static int
libxlDomainSetVcpusFlags(virDomainPtr dom, unsigned int nvcpus,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDomainObjPrivatePtr priv;
virDomainDefPtr def;
virDomainObjPtr vm;
libxl_bitmap map;
uint8_t *bitmask = NULL;
unsigned int maplen;
unsigned int i, 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;
}
libxlDriverLock(driver);
vm = virDomainObjListFindByUUID(driver->domains, dom->uuid);
libxlDriverUnlock(driver);
if (!vm) {
virReportError(VIR_ERR_NO_DOMAIN, "%s", _("no domain with matching uuid"));
goto cleanup;
}
if (!virDomainObjIsActive(vm) && (flags & VIR_DOMAIN_VCPU_LIVE)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot set vcpus on an inactive domain"));
goto cleanup;
}
if (!vm->persistent && (flags & VIR_DOMAIN_VCPU_CONFIG)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot change persistent config of a transient domain"));
goto cleanup;
}
if ((max = libxlGetMaxVcpus(dom->conn, NULL)) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("could not determine max vcpus for the domain"));
goto cleanup;
}
if (!(flags & VIR_DOMAIN_VCPU_MAXIMUM) && vm->def->maxvcpus < max) {
max = vm->def->maxvcpus;
}
if (nvcpus > max) {
virReportError(VIR_ERR_INVALID_ARG,
_("requested vcpus is greater than max allowable"
" vcpus for the domain: %d > %d"), nvcpus, max);
goto cleanup;
}
priv = vm->privateData;
if (!(def = virDomainObjGetPersistentDef(driver->caps, driver->xmlopt, vm)))
goto cleanup;
maplen = VIR_CPU_MAPLEN(nvcpus);
if (VIR_ALLOC_N(bitmask, maplen) < 0) {
virReportOOMError();
goto cleanup;
}
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:
def->maxvcpus = nvcpus;
if (nvcpus < def->vcpus)
def->vcpus = nvcpus;
break;
case VIR_DOMAIN_VCPU_CONFIG:
def->vcpus = nvcpus;
break;
case VIR_DOMAIN_VCPU_LIVE:
if (libxl_set_vcpuonline(priv->ctx, dom->id, &map) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to set vcpus for domain '%d'"
" with libxenlight"), dom->id);
goto cleanup;
}
break;
case VIR_DOMAIN_VCPU_LIVE | VIR_DOMAIN_VCPU_CONFIG:
if (libxl_set_vcpuonline(priv->ctx, dom->id, &map) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to set vcpus for domain '%d'"
" with libxenlight"), dom->id);
goto cleanup;
}
def->vcpus = nvcpus;
break;
}
ret = 0;
if (flags & VIR_DOMAIN_VCPU_CONFIG)
ret = virDomainSaveConfig(driver->configDir, def);
cleanup:
VIR_FREE(bitmask);
if (vm)
virObjectUnlock(vm);
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)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr vm;
virDomainDefPtr def;
int ret = -1;
bool active;
virCheckFlags(VIR_DOMAIN_VCPU_LIVE |
VIR_DOMAIN_VCPU_CONFIG |
VIR_DOMAIN_VCPU_MAXIMUM, -1);
libxlDriverLock(driver);
vm = virDomainObjListFindByUUID(driver->domains, dom->uuid);
libxlDriverUnlock(driver);
if (!vm) {
virReportError(VIR_ERR_NO_DOMAIN, "%s", _("no domain with matching uuid"));
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;
}
ret = (flags & VIR_DOMAIN_VCPU_MAXIMUM) ? def->maxvcpus : def->vcpus;
cleanup:
if (vm)
virObjectUnlock(vm);
return ret;
}
static int
libxlDomainPinVcpu(virDomainPtr dom, unsigned int vcpu, unsigned char *cpumap,
int maplen)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDomainObjPrivatePtr priv;
virDomainObjPtr vm;
int ret = -1;
libxl_bitmap map;
libxlDriverLock(driver);
vm = virDomainObjListFindByUUID(driver->domains, dom->uuid);
libxlDriverUnlock(driver);
if (!vm) {
virReportError(VIR_ERR_NO_DOMAIN, "%s", _("no domain with matching uuid"));
goto cleanup;
}
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("cannot pin vcpus on an inactive domain"));
goto cleanup;
}
priv = vm->privateData;
map.size = maplen;
map.map = cpumap;
if (libxl_set_vcpuaffinity(priv->ctx, dom->id, vcpu, &map) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to pin vcpu '%d' with libxenlight"), vcpu);
goto cleanup;
}
if (!vm->def->cputune.vcpupin) {
if (VIR_ALLOC(vm->def->cputune.vcpupin) < 0) {
virReportOOMError();
goto cleanup;
}
vm->def->cputune.nvcpupin = 0;
}
if (virDomainVcpuPinAdd(&vm->def->cputune.vcpupin,
&vm->def->cputune.nvcpupin,
cpumap,
maplen,
vcpu) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("failed to update or add vcpupin xml"));
goto cleanup;
}
if (virDomainSaveStatus(driver->xmlopt, driver->stateDir, vm) < 0)
goto cleanup;
ret = 0;
cleanup:
if (vm)
virObjectUnlock(vm);
return ret;
}
static int
libxlDomainGetVcpus(virDomainPtr dom, virVcpuInfoPtr info, int maxinfo,
unsigned char *cpumaps, int maplen)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDomainObjPrivatePtr priv;
virDomainObjPtr vm;
int ret = -1;
libxl_vcpuinfo *vcpuinfo;
int maxcpu, hostcpus;
unsigned int i;
unsigned char *cpumap;
libxlDriverLock(driver);
vm = virDomainObjListFindByUUID(driver->domains, dom->uuid);
libxlDriverUnlock(driver);
if (!vm) {
virReportError(VIR_ERR_NO_DOMAIN, "%s", _("no domain with matching uuid"));
goto cleanup;
}
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s", _("Domain is not running"));
goto cleanup;
}
priv = vm->privateData;
if ((vcpuinfo = libxl_list_vcpu(priv->ctx, dom->id, &maxcpu,
&hostcpus)) == NULL) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to list vcpus for domain '%d' with libxenlight"),
dom->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:
if (vm)
virObjectUnlock(vm);
return ret;
}
static char *
libxlDomainGetXMLDesc(virDomainPtr dom, unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr vm;
char *ret = NULL;
/* Flags checked by virDomainDefFormat */
libxlDriverLock(driver);
vm = virDomainObjListFindByUUID(driver->domains, dom->uuid);
libxlDriverUnlock(driver);
if (!vm) {
virReportError(VIR_ERR_NO_DOMAIN, "%s",
_("no domain with matching uuid"));
goto cleanup;
}
ret = virDomainDefFormat(vm->def, flags);
cleanup:
if (vm)
virObjectUnlock(vm);
return ret;
}
static char *
libxlDomainXMLFromNative(virConnectPtr conn, const char * nativeFormat,
const char * nativeConfig,
unsigned int flags)
{
libxlDriverPrivatePtr driver = conn->privateData;
const libxl_version_info *ver_info;
virDomainDefPtr def = NULL;
virConfPtr conf = NULL;
char *xml = NULL;
virCheckFlags(0, NULL);
if (STRNEQ(nativeFormat, LIBXL_CONFIG_FORMAT_XM)) {
virReportError(VIR_ERR_INVALID_ARG,
_("unsupported config type %s"), nativeFormat);
goto cleanup;
}
if ((ver_info = libxl_get_version_info(driver->ctx)) == NULL) {
VIR_ERROR(_("cannot get version information from libxenlight"));
goto cleanup;
}
if (!(conf = virConfReadMem(nativeConfig, strlen(nativeConfig), 0)))
goto cleanup;
if (!(def = xenParseXM(conf, ver_info->xen_version_major, driver->caps))) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("parsing xm config failed"));
goto cleanup;
}
xml = virDomainDefFormat(def, VIR_DOMAIN_XML_INACTIVE);
cleanup:
virDomainDefFree(def);
if (conf)
virConfFree(conf);
return xml;
}
#define MAX_CONFIG_SIZE (1024 * 65)
static char *
libxlDomainXMLToNative(virConnectPtr conn, const char * nativeFormat,
const char * domainXml,
unsigned int flags)
{
libxlDriverPrivatePtr driver = conn->privateData;
const libxl_version_info *ver_info;
virDomainDefPtr def = NULL;
virConfPtr conf = NULL;
int len = MAX_CONFIG_SIZE;
char *ret = NULL;
virCheckFlags(0, NULL);
if (STRNEQ(nativeFormat, LIBXL_CONFIG_FORMAT_XM)) {
virReportError(VIR_ERR_INVALID_ARG,
_("unsupported config type %s"), nativeFormat);
goto cleanup;
}
if ((ver_info = libxl_get_version_info(driver->ctx)) == NULL) {
VIR_ERROR(_("cannot get version information from libxenlight"));
goto cleanup;
}
if (!(def = virDomainDefParseString(domainXml,
driver->caps, driver->xmlopt,
1 << VIR_DOMAIN_VIRT_XEN, 0)))
goto cleanup;
if (!(conf = xenFormatXM(conn, def, ver_info->xen_version_major)))
goto cleanup;
if (VIR_ALLOC_N(ret, len) < 0) {
virReportOOMError();
goto cleanup;
}
if (virConfWriteMem(ret, &len, conf) < 0) {
VIR_FREE(ret);
goto cleanup;
}
cleanup:
virDomainDefFree(def);
if (conf)
virConfFree(conf);
return ret;
}
static int
libxlListDefinedDomains(virConnectPtr conn,
char **const names, int nnames)
{
libxlDriverPrivatePtr driver = conn->privateData;
int n;
libxlDriverLock(driver);
n = virDomainObjListGetInactiveNames(driver->domains, names, nnames);
libxlDriverUnlock(driver);
return n;
}
static int
libxlNumDefinedDomains(virConnectPtr conn)
{
libxlDriverPrivatePtr driver = conn->privateData;
int n;
libxlDriverLock(driver);
n = virDomainObjListNumOfDomains(driver->domains, 0);
libxlDriverUnlock(driver);
return n;
}
static int
libxlDomainCreateWithFlags(virDomainPtr dom,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
virCheckFlags(VIR_DOMAIN_START_PAUSED, -1);
libxlDriverLock(driver);
vm = virDomainObjListFindByUUID(driver->domains, dom->uuid);
if (!vm) {
char uuidstr[VIR_UUID_STRING_BUFLEN];
virUUIDFormat(dom->uuid, uuidstr);
virReportError(VIR_ERR_NO_DOMAIN,
_("No domain with matching uuid '%s'"), uuidstr);
goto cleanup;
}
if (virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("Domain is already running"));
goto cleanup;
}
ret = libxlVmStart(driver, vm, (flags & VIR_DOMAIN_START_PAUSED) != 0, -1);
cleanup:
if (vm)
virObjectUnlock(vm);
libxlDriverUnlock(driver);
return ret;
}
static int
libxlDomainCreate(virDomainPtr dom)
{
return libxlDomainCreateWithFlags(dom, 0);
}
static virDomainPtr
libxlDomainDefineXML(virConnectPtr conn, const char *xml)
{
libxlDriverPrivatePtr driver = conn->privateData;
virDomainDefPtr def = NULL;
virDomainObjPtr vm = NULL;
virDomainPtr dom = NULL;
virDomainEventPtr event = NULL;
virDomainDefPtr oldDef = NULL;
libxlDriverLock(driver);
if (!(def = virDomainDefParseString(xml, driver->caps, driver->xmlopt,
1 << VIR_DOMAIN_VIRT_XEN,
VIR_DOMAIN_XML_INACTIVE)))
goto cleanup;
if (!(vm = virDomainObjListAdd(driver->domains, def,
driver->xmlopt,
0,
&oldDef)))
goto cleanup;
def = NULL;
vm->persistent = 1;
if (virDomainSaveConfig(driver->configDir,
vm->newDef ? vm->newDef : vm->def) < 0) {
virDomainObjListRemove(driver->domains, vm);
vm = NULL;
goto cleanup;
}
dom = virGetDomain(conn, vm->def->name, vm->def->uuid);
if (dom)
dom->id = vm->def->id;
event = virDomainEventNewFromObj(vm, VIR_DOMAIN_EVENT_DEFINED,
!oldDef ?
VIR_DOMAIN_EVENT_DEFINED_ADDED :
VIR_DOMAIN_EVENT_DEFINED_UPDATED);
cleanup:
virDomainDefFree(def);
virDomainDefFree(oldDef);
if (vm)
virObjectUnlock(vm);
if (event)
libxlDomainEventQueue(driver, event);
libxlDriverUnlock(driver);
return dom;
}
static int
libxlDomainUndefineFlags(virDomainPtr dom,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr vm;
virDomainEventPtr event = NULL;
char *name = NULL;
int ret = -1;
virCheckFlags(VIR_DOMAIN_UNDEFINE_MANAGED_SAVE, -1);
libxlDriverLock(driver);
vm = virDomainObjListFindByUUID(driver->domains, dom->uuid);
if (!vm) {
char uuidstr[VIR_UUID_STRING_BUFLEN];
virUUIDFormat(dom->uuid, uuidstr);
virReportError(VIR_ERR_NO_DOMAIN,
_("no domain with matching uuid '%s'"), uuidstr);
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(driver->configDir,
driver->autostartDir,
vm) < 0)
goto cleanup;
event = virDomainEventNewFromObj(vm, VIR_DOMAIN_EVENT_UNDEFINED,
VIR_DOMAIN_EVENT_UNDEFINED_REMOVED);
if (virDomainObjIsActive(vm)) {
vm->persistent = 0;
} else {
virDomainObjListRemove(driver->domains, vm);
vm = NULL;
}
ret = 0;
cleanup:
VIR_FREE(name);
if (vm)
virObjectUnlock(vm);
if (event)
libxlDomainEventQueue(driver, event);
libxlDriverUnlock(driver);
return ret;
}
static int
libxlDomainUndefine(virDomainPtr dom)
{
return libxlDomainUndefineFlags(dom, 0);
}
static int
libxlDomainChangeEjectableMedia(libxlDomainObjPrivatePtr priv,
virDomainObjPtr vm, virDomainDiskDefPtr disk)
{
virDomainDiskDefPtr origdisk = NULL;
libxl_device_disk x_disk;
int 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(priv->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;
}
VIR_FREE(origdisk->src);
origdisk->src = disk->src;
disk->src = NULL;
origdisk->type = disk->type;
virDomainDiskDefFree(disk);
ret = 0;
cleanup:
return ret;
}
static int
libxlDomainAttachDeviceDiskLive(libxlDomainObjPrivatePtr priv,
virDomainObjPtr vm, virDomainDeviceDefPtr dev)
{
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(priv, 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 (!l_disk->src) {
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) {
virReportOOMError();
goto cleanup;
}
if (libxlMakeDisk(l_disk, &x_disk) < 0)
goto cleanup;
if ((ret = libxl_device_disk_add(priv->ctx, vm->def->id,
&x_disk, NULL)) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("libxenlight failed to attach disk '%s'"),
l_disk->dst);
goto cleanup;
}
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:
return ret;
}
static int
libxlDomainDetachDeviceDiskLive(libxlDomainObjPrivatePtr priv,
virDomainObjPtr vm, virDomainDeviceDefPtr dev)
{
virDomainDiskDefPtr l_disk = NULL;
libxl_device_disk x_disk;
int i;
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 ((i = 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[i];
if (libxlMakeDisk(l_disk, &x_disk) < 0)
goto cleanup;
if ((ret = libxl_device_disk_remove(priv->ctx, vm->def->id,
&x_disk, NULL)) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("libxenlight failed to detach disk '%s'"),
l_disk->dst);
goto cleanup;
}
virDomainDiskRemove(vm->def, i);
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:
return ret;
}
static int
libxlDomainAttachDeviceLive(libxlDomainObjPrivatePtr priv, virDomainObjPtr vm,
virDomainDeviceDefPtr dev)
{
int ret = -1;
switch (dev->type) {
case VIR_DOMAIN_DEVICE_DISK:
ret = libxlDomainAttachDeviceDiskLive(priv, vm, dev);
if (!ret)
dev->data.disk = 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;
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)) {
virReportOOMError();
return -1;
}
/* vmdef has the pointer. Generic codes for vmdef will do all jobs */
dev->data.disk = NULL;
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("persistent attach of device is not supported"));
return -1;
}
return 0;
}
static int
libxlDomainDetachDeviceLive(libxlDomainObjPrivatePtr priv, virDomainObjPtr vm,
virDomainDeviceDefPtr dev)
{
int ret = -1;
switch (dev->type) {
case VIR_DOMAIN_DEVICE_DISK:
ret = libxlDomainDetachDeviceDiskLive(priv, vm, dev);
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;
int ret = -1;
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);
break;
}
virDomainDiskDefFree(detach);
ret = 0;
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("persistent detach of device is not supported"));
break;
}
return ret;
}
static int
libxlDomainUpdateDeviceLive(libxlDomainObjPrivatePtr priv,
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(priv, 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;
int i;
int ret = -1;
switch (dev->type) {
case VIR_DOMAIN_DEVICE_DISK:
disk = dev->data.disk;
if ((i = virDomainDiskIndexByName(vmdef, disk->dst, false)) < 0) {
virReportError(VIR_ERR_INVALID_ARG,
_("target %s doesn't exist."), disk->dst);
goto cleanup;
}
orig = vmdef->disks[i];
if (!(orig->device == VIR_DOMAIN_DISK_DEVICE_CDROM)) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("this disk doesn't support update"));
goto cleanup;
}
VIR_FREE(orig->src);
orig->src = disk->src;
orig->type = disk->type;
if (disk->driverName) {
VIR_FREE(orig->driverName);
orig->driverName = disk->driverName;
disk->driverName = NULL;
}
orig->format = disk->format;
disk->src = NULL;
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("persistent update of device is not supported"));
goto cleanup;
}
ret = 0;
cleanup:
return ret;
}
/* Actions for libxlDomainModifyDeviceFlags */
enum {
LIBXL_DEVICE_ATTACH,
LIBXL_DEVICE_DETACH,
LIBXL_DEVICE_UPDATE,
};
static int
libxlDomainModifyDeviceFlags(virDomainPtr dom, const char *xml,
unsigned int flags, int action)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr vm = NULL;
virDomainDefPtr vmdef = NULL;
virDomainDeviceDefPtr dev = NULL;
libxlDomainObjPrivatePtr priv;
int ret = -1;
virCheckFlags(VIR_DOMAIN_DEVICE_MODIFY_LIVE |
VIR_DOMAIN_DEVICE_MODIFY_CONFIG, -1);
libxlDriverLock(driver);
vm = virDomainObjListFindByUUID(driver->domains, dom->uuid);
if (!vm) {
virReportError(VIR_ERR_NO_DOMAIN, "%s", _("no domain with matching uuid"));
goto cleanup;
}
if (virDomainObjIsActive(vm)) {
if (flags == VIR_DOMAIN_DEVICE_MODIFY_CURRENT)
flags |= VIR_DOMAIN_DEVICE_MODIFY_LIVE;
} else {
if (flags == VIR_DOMAIN_DEVICE_MODIFY_CURRENT)
flags |= VIR_DOMAIN_DEVICE_MODIFY_CONFIG;
/* check consistency between flags and the vm state */
if (flags & VIR_DOMAIN_DEVICE_MODIFY_LIVE) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("Domain is not running"));
goto cleanup;
}
}
if ((flags & VIR_DOMAIN_DEVICE_MODIFY_CONFIG) && !vm->persistent) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("cannot modify device on transient domain"));
goto cleanup;
}
priv = vm->privateData;
if (flags & VIR_DOMAIN_DEVICE_MODIFY_CONFIG) {
if (!(dev = virDomainDeviceDefParse(xml, vm->def,
driver->caps, driver->xmlopt,
VIR_DOMAIN_XML_INACTIVE)))
goto cleanup;
/* Make a copy for updated domain. */
if (!(vmdef = virDomainObjCopyPersistentDef(vm, driver->caps,
driver->xmlopt)))
goto cleanup;
switch (action) {
case LIBXL_DEVICE_ATTACH:
ret = libxlDomainAttachDeviceConfig(vmdef, dev);
break;
case LIBXL_DEVICE_DETACH:
ret = libxlDomainDetachDeviceConfig(vmdef, dev);
break;
case LIBXL_DEVICE_UPDATE:
ret = libxlDomainUpdateDeviceConfig(vmdef, dev);
break;
default:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unknown domain modify action %d"), action);
break;
}
} 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,
driver->caps, driver->xmlopt,
VIR_DOMAIN_XML_INACTIVE)))
goto cleanup;
switch (action) {
case LIBXL_DEVICE_ATTACH:
ret = libxlDomainAttachDeviceLive(priv, vm, dev);
break;
case LIBXL_DEVICE_DETACH:
ret = libxlDomainDetachDeviceLive(priv, vm, dev);
break;
case LIBXL_DEVICE_UPDATE:
ret = libxlDomainUpdateDeviceLive(priv, vm, dev);
break;
default:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unknown domain modify action %d"), action);
break;
}
/*
* update domain status forcibly because the domain status may be
* changed even if we attach the device failed.
*/
if (virDomainSaveStatus(driver->xmlopt, driver->stateDir, vm) < 0)
ret = -1;
}
/* Finally, if no error until here, we can save config. */
if (!ret && (flags & VIR_DOMAIN_DEVICE_MODIFY_CONFIG)) {
ret = virDomainSaveConfig(driver->configDir, vmdef);
if (!ret) {
virDomainObjAssignDef(vm, vmdef, false, NULL);
vmdef = NULL;
}
}
cleanup:
virDomainDefFree(vmdef);
virDomainDeviceDefFree(dev);
if (vm)
virObjectUnlock(vm);
libxlDriverUnlock(driver);
return ret;
}
static int
libxlDomainAttachDeviceFlags(virDomainPtr dom, const char *xml,
unsigned int flags)
{
return libxlDomainModifyDeviceFlags(dom, xml, flags, LIBXL_DEVICE_ATTACH);
}
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)
{
return libxlDomainModifyDeviceFlags(dom, xml, flags, LIBXL_DEVICE_DETACH);
}
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)
{
return libxlDomainModifyDeviceFlags(dom, xml, flags, LIBXL_DEVICE_UPDATE);
}
static unsigned long long
libxlNodeGetFreeMemory(virConnectPtr conn)
{
libxl_physinfo phy_info;
const libxl_version_info* ver_info;
libxlDriverPrivatePtr driver = conn->privateData;
if (libxl_get_physinfo(driver->ctx, &phy_info)) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("libxl_get_physinfo_info failed"));
return 0;
}
if ((ver_info = libxl_get_version_info(driver->ctx)) == NULL) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("libxl_get_version_info failed"));
return 0;
}
return phy_info.free_pages * ver_info->pagesize;
}
static int
libxlDomainEventRegister(virConnectPtr conn,
virConnectDomainEventCallback callback, void *opaque,
virFreeCallback freecb)
{
libxlDriverPrivatePtr driver = conn->privateData;
int ret;
libxlDriverLock(driver);
ret = virDomainEventStateRegister(conn,
driver->domainEventState,
callback, opaque, freecb);
libxlDriverUnlock(driver);
return ret;
}
static int
libxlDomainEventDeregister(virConnectPtr conn,
virConnectDomainEventCallback callback)
{
libxlDriverPrivatePtr driver = conn->privateData;
int ret;
libxlDriverLock(driver);
ret = virDomainEventStateDeregister(conn,
driver->domainEventState,
callback);
libxlDriverUnlock(driver);
return ret;
}
static int
libxlDomainGetAutostart(virDomainPtr dom, int *autostart)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
libxlDriverLock(driver);
vm = virDomainObjListFindByUUID(driver->domains, dom->uuid);
libxlDriverUnlock(driver);
if (!vm) {
char uuidstr[VIR_UUID_STRING_BUFLEN];
virUUIDFormat(dom->uuid, uuidstr);
virReportError(VIR_ERR_NO_DOMAIN,
_("No domain with matching uuid '%s'"), uuidstr);
goto cleanup;
}
*autostart = vm->autostart;
ret = 0;
cleanup:
if (vm)
virObjectUnlock(vm);
return ret;
}
static int
libxlDomainSetAutostart(virDomainPtr dom, int autostart)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr vm;
char *configFile = NULL, *autostartLink = NULL;
int ret = -1;
libxlDriverLock(driver);
vm = virDomainObjListFindByUUID(driver->domains, dom->uuid);
if (!vm) {
char uuidstr[VIR_UUID_STRING_BUFLEN];
virUUIDFormat(dom->uuid, uuidstr);
virReportError(VIR_ERR_NO_DOMAIN,
_("No domain with matching uuid '%s'"), uuidstr);
goto cleanup;
}
if (!vm->persistent) {
virReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("cannot set autostart for transient domain"));
goto cleanup;
}
autostart = (autostart != 0);
if (vm->autostart != autostart) {
if (!(configFile = virDomainConfigFile(driver->configDir, vm->def->name)))
goto cleanup;
if (!(autostartLink = virDomainConfigFile(driver->autostartDir, vm->def->name)))
goto cleanup;
if (autostart) {
if (virFileMakePath(driver->autostartDir) < 0) {
virReportSystemError(errno,
_("cannot create autostart directory %s"),
driver->autostartDir);
goto cleanup;
}
if (symlink(configFile, autostartLink) < 0) {
virReportSystemError(errno,
_("Failed to create symlink '%s to '%s'"),
autostartLink, configFile);
goto cleanup;
}
} else {
if (unlink(autostartLink) < 0 && errno != ENOENT && errno != ENOTDIR) {
virReportSystemError(errno,
_("Failed to delete symlink '%s'"),
autostartLink);
goto cleanup;
}
}
vm->autostart = autostart;
}
ret = 0;
cleanup:
VIR_FREE(configFile);
VIR_FREE(autostartLink);
if (vm)
virObjectUnlock(vm);
libxlDriverUnlock(driver);
return ret;
}
static char *
libxlDomainGetSchedulerType(virDomainPtr dom, int *nparams)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDomainObjPrivatePtr priv;
virDomainObjPtr vm;
char * ret = NULL;
libxl_scheduler sched_id;
libxlDriverLock(driver);
vm = virDomainObjListFindByUUID(driver->domains, dom->uuid);
libxlDriverUnlock(driver);
if (!vm) {
virReportError(VIR_ERR_NO_DOMAIN, "%s", _("no domain with matching uuid"));
goto cleanup;
}
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s", _("Domain is not running"));
goto cleanup;
}
priv = vm->privateData;
sched_id = libxl_get_scheduler(priv->ctx);
if (nparams)
*nparams = 0;
switch (sched_id) {
case LIBXL_SCHEDULER_SEDF:
ret = strdup("sedf");
break;
case LIBXL_SCHEDULER_CREDIT:
ret = strdup("credit");
if (nparams)
*nparams = XEN_SCHED_CREDIT_NPARAM;
break;
case LIBXL_SCHEDULER_CREDIT2:
ret = strdup("credit2");
break;
case LIBXL_SCHEDULER_ARINC653:
ret = strdup("arinc653");
break;
default:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to get scheduler id for domain '%d'"
" with libxenlight"), dom->id);
goto cleanup;
}
if (!ret)
virReportOOMError();
cleanup:
if (vm)
virObjectUnlock(vm);
return ret;
}
static int
libxlDomainGetSchedulerParametersFlags(virDomainPtr dom,
virTypedParameterPtr params,
int *nparams,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
libxlDomainObjPrivatePtr priv;
virDomainObjPtr vm;
libxl_domain_sched_params sc_info;
libxl_scheduler sched_id;
int ret = -1;
virCheckFlags(0, -1);
libxlDriverLock(driver);
vm = virDomainObjListFindByUUID(driver->domains, dom->uuid);
libxlDriverUnlock(driver);
if (!vm) {
virReportError(VIR_ERR_NO_DOMAIN, "%s",
_("no domain with matching uuid"));
goto cleanup;
}
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("Domain is not running"));
goto cleanup;
}
priv = vm->privateData;
sched_id = libxl_get_scheduler(priv->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(priv->ctx, dom->id, &sc_info) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to get scheduler parameters for domain '%d'"
" with libxenlight"), dom->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[0], 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:
if (vm)
virObjectUnlock(vm);
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;
libxlDomainObjPrivatePtr priv;
virDomainObjPtr vm;
libxl_domain_sched_params sc_info;
int sched_id;
int i;
int ret = -1;
virCheckFlags(0, -1);
if (virTypedParameterArrayValidate(params, nparams,
VIR_DOMAIN_SCHEDULER_WEIGHT,
VIR_TYPED_PARAM_UINT,
VIR_DOMAIN_SCHEDULER_CAP,
VIR_TYPED_PARAM_UINT,
NULL) < 0)
return -1;
libxlDriverLock(driver);
vm = virDomainObjListFindByUUID(driver->domains, dom->uuid);
libxlDriverUnlock(driver);
if (!vm) {
virReportError(VIR_ERR_NO_DOMAIN, "%s", _("no domain with matching uuid"));
goto cleanup;
}
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s", _("Domain is not running"));
goto cleanup;
}
priv = vm->privateData;
sched_id = libxl_get_scheduler(priv->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(priv->ctx, dom->id, &sc_info) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to get scheduler parameters for domain '%d'"
" with libxenlight"), dom->id);
goto cleanup;
}
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(priv->ctx, dom->id, &sc_info) != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to set scheduler parameters for domain '%d'"
" with libxenlight"), dom->id);
goto cleanup;
}
ret = 0;
cleanup:
if (vm)
virObjectUnlock(vm);
return ret;
}
static int
libxlDomainSetSchedulerParameters(virDomainPtr dom, virTypedParameterPtr params,
int nparams)
{
return libxlDomainSetSchedulerParametersFlags(dom, params, nparams, 0);
}
static int
libxlDomainIsActive(virDomainPtr dom)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr obj;
int ret = -1;
libxlDriverLock(driver);
obj = virDomainObjListFindByUUID(driver->domains, dom->uuid);
libxlDriverUnlock(driver);
if (!obj) {
virReportError(VIR_ERR_NO_DOMAIN, NULL);
goto cleanup;
}
ret = virDomainObjIsActive(obj);
cleanup:
if (obj)
virObjectUnlock(obj);
return ret;
}
static int
libxlDomainIsPersistent(virDomainPtr dom)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr obj;
int ret = -1;
libxlDriverLock(driver);
obj = virDomainObjListFindByUUID(driver->domains, dom->uuid);
libxlDriverUnlock(driver);
if (!obj) {
virReportError(VIR_ERR_NO_DOMAIN, NULL);
goto cleanup;
}
ret = obj->persistent;
cleanup:
if (obj)
virObjectUnlock(obj);
return ret;
}
static int
libxlDomainIsUpdated(virDomainPtr dom)
{
libxlDriverPrivatePtr driver = dom->conn->privateData;
virDomainObjPtr vm;
int ret = -1;
libxlDriverLock(driver);
vm = virDomainObjListFindByUUID(driver->domains, dom->uuid);
libxlDriverUnlock(driver);
if (!vm) {
virReportError(VIR_ERR_NO_DOMAIN, NULL);
goto cleanup;
}
ret = vm->updated;
cleanup:
if (vm)
virObjectUnlock(vm);
return ret;
}
static int
libxlDomainEventRegisterAny(virConnectPtr conn, virDomainPtr dom, int eventID,
virConnectDomainEventGenericCallback callback,
void *opaque, virFreeCallback freecb)
{
libxlDriverPrivatePtr driver = conn->privateData;
int ret;
libxlDriverLock(driver);
if (virDomainEventStateRegisterID(conn,
driver->domainEventState,
dom, eventID, callback, opaque,
freecb, &ret) < 0)
ret = -1;
libxlDriverUnlock(driver);
return ret;
}
static int
libxlDomainEventDeregisterAny(virConnectPtr conn, int callbackID)
{
libxlDriverPrivatePtr driver = conn->privateData;
int ret;
libxlDriverLock(driver);
ret = virDomainEventStateDeregisterID(conn,
driver->domainEventState,
callbackID);
libxlDriverUnlock(driver);
return ret;
}
static int
libxlIsAlive(virConnectPtr conn ATTRIBUTE_UNUSED)
{
return 1;
}
static int
libxlListAllDomains(virConnectPtr conn,
virDomainPtr **domains,
unsigned int flags)
{
libxlDriverPrivatePtr driver = conn->privateData;
int ret = -1;
virCheckFlags(VIR_CONNECT_LIST_DOMAINS_FILTERS_ALL, -1);
libxlDriverLock(driver);
ret = virDomainObjListExport(driver->domains, conn, domains, flags);
libxlDriverUnlock(driver);
return ret;
}
static virDriver libxlDriver = {
.no = VIR_DRV_LIBXL,
.name = "xenlight",
.open = libxlOpen, /* 0.9.0 */
.close = libxlClose, /* 0.9.0 */
.type = libxlGetType, /* 0.9.0 */
.version = libxlGetVersion, /* 0.9.0 */
.getHostname = virGetHostname, /* 0.9.0 */
.getMaxVcpus = libxlGetMaxVcpus, /* 0.9.0 */
.nodeGetInfo = libxlNodeGetInfo, /* 0.9.0 */
.getCapabilities = libxlGetCapabilities, /* 0.9.0 */
.listDomains = libxlListDomains, /* 0.9.0 */
.numOfDomains = libxlNumDomains, /* 0.9.0 */
.listAllDomains = libxlListAllDomains, /* 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 */
.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 */
.domainPinVcpu = libxlDomainPinVcpu, /* 0.9.0 */
.domainGetVcpus = libxlDomainGetVcpus, /* 0.9.0 */
.domainGetXMLDesc = libxlDomainGetXMLDesc, /* 0.9.0 */
.domainXMLFromNative = libxlDomainXMLFromNative, /* 0.9.0 */
.domainXMLToNative = libxlDomainXMLToNative, /* 0.9.0 */
.listDefinedDomains = libxlListDefinedDomains, /* 0.9.0 */
.numOfDefinedDomains = libxlNumDefinedDomains, /* 0.9.0 */
.domainCreate = libxlDomainCreate, /* 0.9.0 */
.domainCreateWithFlags = libxlDomainCreateWithFlags, /* 0.9.0 */
.domainDefineXML = libxlDomainDefineXML, /* 0.9.0 */
.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 */
.nodeGetFreeMemory = libxlNodeGetFreeMemory, /* 0.9.0 */
.domainEventRegister = libxlDomainEventRegister, /* 0.9.0 */
.domainEventDeregister = libxlDomainEventDeregister, /* 0.9.0 */
.domainManagedSave = libxlDomainManagedSave, /* 0.9.2 */
.domainHasManagedSaveImage = libxlDomainHasManagedSaveImage, /* 0.9.2 */
.domainManagedSaveRemove = libxlDomainManagedSaveRemove, /* 0.9.2 */
.domainIsActive = libxlDomainIsActive, /* 0.9.0 */
.domainIsPersistent = libxlDomainIsPersistent, /* 0.9.0 */
.domainIsUpdated = libxlDomainIsUpdated, /* 0.9.0 */
.domainEventRegisterAny = libxlDomainEventRegisterAny, /* 0.9.0 */
.domainEventDeregisterAny = libxlDomainEventDeregisterAny, /* 0.9.0 */
.isAlive = libxlIsAlive, /* 0.9.8 */
};
static virStateDriver libxlStateDriver = {
.name = "LIBXL",
.initialize = libxlStartup,
.cleanup = libxlShutdown,
.reload = libxlReload,
};
int
libxlRegister(void)
{
if (virRegisterDriver(&libxlDriver) < 0)
return -1;
if (virRegisterStateDriver(&libxlStateDriver) < 0)
return -1;
return 0;
}
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