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libvirt/src/bhyve/bhyve_capabilities.c
Roman Bogorodskiy 32b675456e bhyve: add config file support 
Introduce config file support for the bhyve driver. The only available
setting at present is 'firmware_dir' for specifying a directory with
UEFI firmware files.
2017-03-14 20:46:05 +04:00

344 lines
8.7 KiB
C
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/*
* bhyve_capabilities.c: bhyve capabilities module
*
* Copyright (C) 2014 Roman Bogorodskiy
* Copyright (C) 2014 Semihalf
* Copyright (C) 2016 Fabian Freyer
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*
*/
#include <config.h>
#include <sys/utsname.h>
#include <dirent.h>
#include <stdio.h>
#include <sys/types.h>
#include "viralloc.h"
#include "virfile.h"
#include "virlog.h"
#include "virstring.h"
#include "cpu/cpu.h"
#include "nodeinfo.h"
#include "domain_conf.h"
#include "vircommand.h"
#include "bhyve_capabilities.h"
#include "bhyve_conf.h"
#define VIR_FROM_THIS VIR_FROM_BHYVE
VIR_LOG_INIT("bhyve.bhyve_capabilities");
static int
virBhyveCapsInitCPU(virCapsPtr caps,
virArch arch)
{
virNodeInfo nodeinfo;
if (nodeGetInfo(&nodeinfo))
return -1;
if (!(caps->host.cpu = virCPUGetHost(arch, VIR_CPU_TYPE_HOST,
&nodeinfo, NULL, 0)))
return -1;
return 0;
}
virCapsPtr
virBhyveCapsBuild(void)
{
virCapsPtr caps;
virCapsGuestPtr guest;
if ((caps = virCapabilitiesNew(virArchFromHost(),
false, false)) == NULL)
return NULL;
if ((guest = virCapabilitiesAddGuest(caps, VIR_DOMAIN_OSTYPE_HVM,
VIR_ARCH_X86_64,
"bhyve",
NULL, 0, NULL)) == NULL)
goto error;
if (virCapabilitiesAddGuestDomain(guest, VIR_DOMAIN_VIRT_BHYVE,
NULL, NULL, 0, NULL) == NULL)
goto error;
if (virBhyveCapsInitCPU(caps, virArchFromHost()) < 0)
VIR_WARN("Failed to get host CPU: %s", virGetLastErrorMessage());
return caps;
error:
virObjectUnref(caps);
return NULL;
}
virDomainCapsPtr
virBhyveDomainCapsBuild(bhyveConnPtr conn,
const char *emulatorbin,
const char *machine,
virArch arch,
virDomainVirtType virttype)
{
virDomainCapsPtr caps = NULL;
unsigned int bhyve_caps = 0;
DIR *dir;
struct dirent *entry;
size_t firmwares_alloc = 0;
virBhyveDriverConfigPtr cfg = virBhyveDriverGetConfig(conn);
const char *firmware_dir = cfg->firmwareDir;
if (!(caps = virDomainCapsNew(emulatorbin, machine, arch, virttype)))
goto cleanup;
if (virBhyveProbeCaps(&bhyve_caps)) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("failed probing capabilities"));
goto cleanup;
}
caps->os.supported = true;
caps->os.loader.supported = true;
VIR_DOMAIN_CAPS_ENUM_SET(caps->os.loader.type,
VIR_DOMAIN_LOADER_TYPE_PFLASH);
VIR_DOMAIN_CAPS_ENUM_SET(caps->os.loader.readonly,
VIR_TRISTATE_BOOL_YES);
if (virDirOpenIfExists(&dir, firmware_dir) > 0) {
while ((virDirRead(dir, &entry, firmware_dir)) > 0) {
if (VIR_RESIZE_N(caps->os.loader.values.values,
firmwares_alloc, caps->os.loader.values.nvalues, 2) < 0)
goto cleanup;
if (virAsprintf(
&caps->os.loader.values.values[caps->os.loader.values.nvalues],
"%s/%s", firmware_dir, entry->d_name) < 0)
goto cleanup;
caps->os.loader.values.nvalues++;
}
} else {
VIR_WARN("Cannot open firmware directory %s", firmware_dir);
}
caps->disk.supported = true;
VIR_DOMAIN_CAPS_ENUM_SET(caps->disk.diskDevice,
VIR_DOMAIN_DISK_DEVICE_DISK,
VIR_DOMAIN_DISK_DEVICE_CDROM);
VIR_DOMAIN_CAPS_ENUM_SET(caps->disk.bus,
VIR_DOMAIN_DISK_BUS_SATA,
VIR_DOMAIN_DISK_BUS_VIRTIO);
if (bhyve_caps & BHYVE_CAP_FBUF) {
caps->graphics.supported = true;
caps->video.supported = true;
VIR_DOMAIN_CAPS_ENUM_SET(caps->graphics.type, VIR_DOMAIN_GRAPHICS_TYPE_VNC);
VIR_DOMAIN_CAPS_ENUM_SET(caps->video.modelType, VIR_DOMAIN_VIDEO_TYPE_GOP);
}
cleanup:
VIR_DIR_CLOSE(dir);
virObjectUnref(cfg);
return caps;
}
int
virBhyveProbeGrubCaps(virBhyveGrubCapsFlags *caps)
{
char *binary, *help;
virCommandPtr cmd;
int ret, exit;
ret = 0;
*caps = 0;
cmd = NULL;
help = NULL;
binary = virFindFileInPath("grub-bhyve");
if (binary == NULL)
goto out;
if (!virFileIsExecutable(binary))
goto out;
cmd = virCommandNew(binary);
virCommandAddArg(cmd, "--help");
virCommandSetOutputBuffer(cmd, &help);
if (virCommandRun(cmd, &exit) < 0) {
ret = -1;
goto out;
}
if (strstr(help, "--cons-dev") != NULL)
*caps |= BHYVE_GRUB_CAP_CONSDEV;
out:
VIR_FREE(help);
virCommandFree(cmd);
VIR_FREE(binary);
return ret;
}
static int
bhyveProbeCapsRTC_UTC(unsigned int *caps, char *binary)
{
char *help;
virCommandPtr cmd = NULL;
int ret = 0, exit;
cmd = virCommandNew(binary);
virCommandAddArg(cmd, "-h");
virCommandSetErrorBuffer(cmd, &help);
if (virCommandRun(cmd, &exit) < 0) {
ret = -1;
goto out;
}
if (strstr(help, "-u:") != NULL)
*caps |= BHYVE_CAP_RTC_UTC;
out:
VIR_FREE(help);
virCommandFree(cmd);
return ret;
}
static int
bhyveProbeCapsAHCI32Slot(unsigned int *caps, char *binary)
{
char *error;
virCommandPtr cmd = NULL;
int ret = 0, exit;
cmd = virCommandNew(binary);
virCommandAddArgList(cmd, "-s", "0,ahci", NULL);
virCommandSetErrorBuffer(cmd, &error);
if (virCommandRun(cmd, &exit) < 0) {
ret = -1;
goto out;
}
if (strstr(error, "pci slot 0:0: unknown device \"ahci\"") == NULL)
*caps |= BHYVE_CAP_AHCI32SLOT;
out:
VIR_FREE(error);
virCommandFree(cmd);
return ret;
}
static int
bhyveProbeCapsNetE1000(unsigned int *caps, char *binary)
{
char *error;
virCommandPtr cmd = NULL;
int ret = -1, exit;
cmd = virCommandNew(binary);
virCommandAddArgList(cmd, "-s", "0,e1000", NULL);
virCommandSetErrorBuffer(cmd, &error);
if (virCommandRun(cmd, &exit) < 0)
goto cleanup;
if (strstr(error, "pci slot 0:0: unknown device \"e1000\"") == NULL)
*caps |= BHYVE_CAP_NET_E1000;
ret = 0;
cleanup:
VIR_FREE(error);
virCommandFree(cmd);
return ret;
}
static int
bhyveProbeCapsLPC_Bootrom(unsigned int *caps, char *binary)
{
char *error;
virCommandPtr cmd = NULL;
int ret = -1, exit;
cmd = virCommandNew(binary);
virCommandAddArgList(cmd, "-l", "bootrom", NULL);
virCommandSetErrorBuffer(cmd, &error);
if (virCommandRun(cmd, &exit) < 0)
goto cleanup;
if (strstr(error, "bhyve: invalid lpc device configuration 'bootrom'") == NULL)
*caps |= BHYVE_CAP_LPC_BOOTROM;
ret = 0;
cleanup:
VIR_FREE(error);
virCommandFree(cmd);
return ret;
}
static int
bhyveProbeCapsFramebuffer(unsigned int *caps, char *binary)
{
char *error;
virCommandPtr cmd = NULL;
int ret = -1, exit;
cmd = virCommandNew(binary);
virCommandAddArgList(cmd, "-s", "0,fbuf", NULL);
virCommandSetErrorBuffer(cmd, &error);
if (virCommandRun(cmd, &exit) < 0)
goto cleanup;
if (strstr(error, "pci slot 0:0: unknown device \"fbuf\"") == NULL)
*caps |= BHYVE_CAP_FBUF;
ret = 0;
cleanup:
VIR_FREE(error);
virCommandFree(cmd);
return ret;
}
int
virBhyveProbeCaps(unsigned int *caps)
{
char *binary;
int ret = 0;
binary = virFindFileInPath("bhyve");
if (binary == NULL)
goto out;
if (!virFileIsExecutable(binary))
goto out;
if ((ret = bhyveProbeCapsRTC_UTC(caps, binary)))
goto out;
if ((ret = bhyveProbeCapsAHCI32Slot(caps, binary)))
goto out;
if ((ret = bhyveProbeCapsNetE1000(caps, binary)))
goto out;
if ((ret = bhyveProbeCapsLPC_Bootrom(caps, binary)))
goto out;
if ((ret = bhyveProbeCapsFramebuffer(caps, binary)))
goto out;
out:
VIR_FREE(binary);
return ret;
}
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