libvirt/tests/domaincapstest.c
Jiri Denemark 14319c81a0 Show host model in domain capabilities
The domain capabilities XML is capable of showing whether each guest CPU
mode is supported or not with a possibility to provide additional
details. This patch enhances host-model capability to advertise the
exact CPU model which will be used as a host-model:

    <cpu>
        ...
        <mode name='host-model' supported='yes'>
            <model fallback='allow'>Broadwell</model>
            <vendor>Intel</vendor>
            <feature policy='disable' name='aes'/>
            <feature policy='require' name='vmx'/>
        </mode>
        ...
    </cpu>

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2016-09-22 15:40:08 +02:00

461 lines
14 KiB
C

/*
* Copyright (C) Red Hat, Inc. 2014
*
* 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:
* Michal Privoznik <mprivozn@redhat.com>
*/
#include <config.h>
#include <stdlib.h>
#include "testutils.h"
#include "domain_capabilities.h"
#define VIR_FROM_THIS VIR_FROM_NONE
typedef int (*virDomainCapsFill)(virDomainCapsPtr domCaps,
void *opaque);
#define SET_ALL_BITS(x) \
memset(&(x.values), 0xff, sizeof(x.values))
static int ATTRIBUTE_SENTINEL
fillStringValues(virDomainCapsStringValuesPtr values, ...)
{
int ret = 0;
va_list list;
const char *str;
va_start(list, values);
while ((str = va_arg(list, const char *))) {
if (VIR_REALLOC_N(values->values, values->nvalues + 1) < 0 ||
VIR_STRDUP(values->values[values->nvalues], str) < 0) {
ret = -1;
break;
}
values->nvalues++;
}
va_end(list);
return ret;
}
static int
fillAllCaps(virDomainCapsPtr domCaps)
{
virDomainCapsOSPtr os = &domCaps->os;
virDomainCapsLoaderPtr loader = &os->loader;
virDomainCapsCPUPtr cpu = &domCaps->cpu;
virDomainCapsDeviceDiskPtr disk = &domCaps->disk;
virDomainCapsDeviceGraphicsPtr graphics = &domCaps->graphics;
virDomainCapsDeviceVideoPtr video = &domCaps->video;
virDomainCapsDeviceHostdevPtr hostdev = &domCaps->hostdev;
virCPUDef host = {
VIR_CPU_TYPE_HOST, 0, 0,
VIR_ARCH_X86_64, (char *) "host",
NULL, 0, (char *) "CPU Vendorrr",
0, 0, 0, 0, 0, NULL,
};
domCaps->maxvcpus = 255;
os->supported = true;
loader->supported = true;
SET_ALL_BITS(loader->type);
SET_ALL_BITS(loader->readonly);
if (fillStringValues(&loader->values,
"/foo/bar",
"/tmp/my_path",
NULL) < 0)
return -1;
cpu->hostPassthrough = true;
cpu->hostModel = virCPUDefCopy(&host);
if (!(cpu->custom = virDomainCapsCPUModelsNew(3)) ||
virDomainCapsCPUModelsAdd(cpu->custom, "Model1", -1,
VIR_DOMCAPS_CPU_USABLE_UNKNOWN) < 0 ||
virDomainCapsCPUModelsAdd(cpu->custom, "Model2", -1,
VIR_DOMCAPS_CPU_USABLE_NO) < 0 ||
virDomainCapsCPUModelsAdd(cpu->custom, "Model3", -1,
VIR_DOMCAPS_CPU_USABLE_YES) < 0)
return -1;
disk->supported = true;
SET_ALL_BITS(disk->diskDevice);
SET_ALL_BITS(disk->bus);
graphics->supported = true;
SET_ALL_BITS(graphics->type);
video->supported = true;
SET_ALL_BITS(video->modelType);
hostdev->supported = true;
SET_ALL_BITS(hostdev->mode);
SET_ALL_BITS(hostdev->startupPolicy);
SET_ALL_BITS(hostdev->subsysType);
SET_ALL_BITS(hostdev->capsType);
SET_ALL_BITS(hostdev->pciBackend);
return 0;
}
#if WITH_QEMU
# include "testutilsqemu.h"
static virCPUDef aarch64Cpu = {
0, 0, 0, 0, NULL, NULL, 0, NULL, 1, 1, 1, 0, 0, NULL,
};
static virCPUDef ppc64leCpu = {
VIR_CPU_TYPE_HOST, 0, 0,
VIR_ARCH_PPC64LE, (char *) "POWER8",
NULL, 0, NULL, 1, 1, 1, 0, 0, NULL,
};
static virCPUDef x86Cpu = {
VIR_CPU_TYPE_HOST, 0, 0,
VIR_ARCH_X86_64, (char *) "Broadwell",
NULL, 0, NULL, 1, 1, 1, 0, 0, NULL,
};
static int
fakeHostCPU(virCapsPtr caps,
virArch arch)
{
virCPUDefPtr cpu;
switch (arch) {
case VIR_ARCH_AARCH64:
cpu = &aarch64Cpu;
break;
case VIR_ARCH_PPC64LE:
cpu = &ppc64leCpu;
break;
case VIR_ARCH_X86_64:
cpu = &x86Cpu;
break;
default:
virReportError(VIR_ERR_INTERNAL_ERROR,
"cannot fake host CPU for arch %s",
virArchToString(arch));
return -1;
}
if (!(caps->host.cpu = virCPUDefCopy(cpu)))
return -1;
return 0;
}
static int
fillQemuCaps(virDomainCapsPtr domCaps,
const char *name,
const char *arch,
const char *machine,
virQEMUDriverConfigPtr cfg)
{
int ret = -1;
char *path = NULL;
virCapsPtr caps = NULL;
virQEMUCapsPtr qemuCaps = NULL;
virDomainCapsLoaderPtr loader = &domCaps->os.loader;
if (!(caps = virCapabilitiesNew(domCaps->arch, false, false)) ||
fakeHostCPU(caps, domCaps->arch) < 0)
goto cleanup;
if (virAsprintf(&path, "%s/qemucapabilitiesdata/%s.%s.xml",
abs_srcdir, name, arch) < 0 ||
!(qemuCaps = qemuTestParseCapabilities(caps, path)))
goto cleanup;
if (machine &&
VIR_STRDUP(domCaps->machine,
virQEMUCapsGetCanonicalMachine(qemuCaps, machine)) < 0)
goto cleanup;
if (!domCaps->machine &&
VIR_STRDUP(domCaps->machine,
virQEMUCapsGetDefaultMachine(qemuCaps)) < 0)
goto cleanup;
if (virQEMUCapsFillDomainCaps(caps, domCaps, qemuCaps,
cfg->firmwares,
cfg->nfirmwares) < 0)
goto cleanup;
/* The function above tries to query host's KVM & VFIO capabilities by
* calling qemuHostdevHostSupportsPassthroughLegacy() and
* qemuHostdevHostSupportsPassthroughVFIO() which, however, can't be
* successfully mocked as they are not exposed as internal APIs. Therefore,
* instead of mocking set the expected values here by hand. */
VIR_DOMAIN_CAPS_ENUM_SET(domCaps->hostdev.pciBackend,
VIR_DOMAIN_HOSTDEV_PCI_BACKEND_DEFAULT,
VIR_DOMAIN_HOSTDEV_PCI_BACKEND_KVM,
VIR_DOMAIN_HOSTDEV_PCI_BACKEND_VFIO);
/* As of f05b6a918e28 we are expecting to see OVMF_CODE.fd file which
* may not exists everywhere. */
while (loader->values.nvalues)
VIR_FREE(loader->values.values[--loader->values.nvalues]);
if (fillStringValues(&loader->values,
"/usr/share/AAVMF/AAVMF_CODE.fd",
"/usr/share/OVMF/OVMF_CODE.fd",
NULL) < 0)
goto cleanup;
ret = 0;
cleanup:
virObjectUnref(caps);
virObjectUnref(qemuCaps);
VIR_FREE(path);
return ret;
}
#endif /* WITH_QEMU */
#ifdef WITH_LIBXL
# include "testutilsxen.h"
static int
fillXenCaps(virDomainCapsPtr domCaps)
{
virFirmwarePtr *firmwares;
int ret = -1;
if (VIR_ALLOC_N(firmwares, 2) < 0)
return ret;
if (VIR_ALLOC(firmwares[0]) < 0 || VIR_ALLOC(firmwares[1]) < 0)
goto cleanup;
if (VIR_STRDUP(firmwares[0]->name, "/usr/lib/xen/boot/hvmloader") < 0 ||
VIR_STRDUP(firmwares[1]->name, "/usr/lib/xen/boot/ovmf.bin") < 0)
goto cleanup;
if (libxlMakeDomainCapabilities(domCaps, firmwares, 2) < 0)
goto cleanup;
ret = 0;
cleanup:
virFirmwareFreeList(firmwares, 2);
return ret;
}
#endif /* WITH_LIBXL */
enum testCapsType {
CAPS_NONE,
CAPS_ALL,
CAPS_QEMU,
CAPS_LIBXL,
};
struct testData {
const char *name;
const char *emulator;
const char *machine;
const char *arch;
virDomainVirtType type;
enum testCapsType capsType;
const char *capsName;
void *capsOpaque;
};
static int
test_virDomainCapsFormat(const void *opaque)
{
const struct testData *data = opaque;
virDomainCapsPtr domCaps = NULL;
char *path = NULL;
char *domCapsXML = NULL;
int ret = -1;
if (virAsprintf(&path, "%s/domaincapsschemadata/%s.xml",
abs_srcdir, data->name) < 0)
goto cleanup;
if (!(domCaps = virDomainCapsNew(data->emulator, data->machine,
virArchFromString(data->arch),
data->type)))
goto cleanup;
switch (data->capsType) {
case CAPS_NONE:
break;
case CAPS_ALL:
if (fillAllCaps(domCaps) < 0)
goto cleanup;
break;
case CAPS_QEMU:
#if WITH_QEMU
if (fillQemuCaps(domCaps, data->capsName, data->arch, data->machine,
data->capsOpaque) < 0)
goto cleanup;
#endif
break;
case CAPS_LIBXL:
#if WITH_LIBXL
if (fillXenCaps(domCaps) < 0)
goto cleanup;
#endif
break;
}
if (!(domCapsXML = virDomainCapsFormat(domCaps)))
goto cleanup;
if (virTestCompareToFile(domCapsXML, path) < 0)
goto cleanup;
ret = 0;
cleanup:
VIR_FREE(domCapsXML);
VIR_FREE(path);
virObjectUnref(domCaps);
return ret;
}
static int
mymain(void)
{
int ret = 0;
#if WITH_QEMU
virQEMUDriverConfigPtr cfg = virQEMUDriverConfigNew(false);
if (!cfg)
return EXIT_FAILURE;
#endif
#define DO_TEST(Name, Emulator, Machine, Arch, Type, CapsType) \
do { \
struct testData data = { \
.name = Name, \
.emulator = Emulator, \
.machine = Machine, \
.arch = Arch, \
.type = Type, \
.capsType = CapsType, \
}; \
if (virTestRun(Name, test_virDomainCapsFormat, &data) < 0) \
ret = -1; \
} while (0)
#define DO_TEST_QEMU(Name, CapsName, Emulator, Machine, Arch, Type) \
do { \
char *name = NULL; \
if (virAsprintf(&name, "qemu_%s%s%s.%s", \
Name, \
Machine ? "-" : "", Machine ? Machine : "", \
Arch) < 0) { \
ret = -1; \
break; \
} \
struct testData data = { \
.name = name, \
.emulator = Emulator, \
.machine = Machine, \
.arch = Arch, \
.type = Type, \
.capsType = CAPS_QEMU, \
.capsName = CapsName, \
.capsOpaque = cfg, \
}; \
if (virTestRun(name, test_virDomainCapsFormat, &data) < 0) \
ret = -1; \
VIR_FREE(name); \
} while (0)
#define DO_TEST_LIBXL(Name, Emulator, Machine, Arch, Type) \
do { \
struct testData data = { \
.name = Name, \
.emulator = Emulator, \
.machine = Machine, \
.arch = Arch, \
.type = Type, \
.capsType = CAPS_LIBXL, \
}; \
if (virTestRun(Name, test_virDomainCapsFormat, &data) < 0) \
ret = -1; \
} while (0)
DO_TEST("basic", "/bin/emulatorbin", "my-machine-type",
"x86_64", VIR_DOMAIN_VIRT_UML, CAPS_NONE);
DO_TEST("full", "/bin/emulatorbin", "my-machine-type",
"x86_64", VIR_DOMAIN_VIRT_KVM, CAPS_ALL);
#if WITH_QEMU
DO_TEST_QEMU("1.7.0", "caps_1.7.0",
"/usr/bin/qemu-system-x86_64", NULL,
"x86_64", VIR_DOMAIN_VIRT_KVM);
DO_TEST_QEMU("2.6.0", "caps_2.6.0",
"/usr/bin/qemu-system-x86_64", NULL,
"x86_64", VIR_DOMAIN_VIRT_KVM);
DO_TEST_QEMU("2.6.0", "caps_2.6.0-gicv2",
"/usr/bin/qemu-system-aarch64", NULL,
"aarch64", VIR_DOMAIN_VIRT_KVM);
DO_TEST_QEMU("2.6.0-gicv2", "caps_2.6.0-gicv2",
"/usr/bin/qemu-system-aarch64", "virt",
"aarch64", VIR_DOMAIN_VIRT_KVM);
DO_TEST_QEMU("2.6.0-gicv3", "caps_2.6.0-gicv3",
"/usr/bin/qemu-system-aarch64", "virt",
"aarch64", VIR_DOMAIN_VIRT_KVM);
DO_TEST_QEMU("2.6.0", "caps_2.6.0",
"/usr/bin/qemu-system-ppc64", NULL,
"ppc64le", VIR_DOMAIN_VIRT_KVM);
#endif /* WITH_QEMU */
#if WITH_LIBXL
# ifdef LIBXL_HAVE_PVUSB
# define LIBXL_XENPV_CAPS "libxl-xenpv-usb"
# define LIBXL_XENFV_CAPS "libxl-xenfv-usb"
# else
# define LIBXL_XENPV_CAPS "libxl-xenpv"
# define LIBXL_XENFV_CAPS "libxl-xenfv"
# endif
DO_TEST_LIBXL(LIBXL_XENPV_CAPS, "/usr/bin/qemu-system-x86_64",
"xenpv", "x86_64", VIR_DOMAIN_VIRT_XEN);
DO_TEST_LIBXL(LIBXL_XENFV_CAPS, "/usr/bin/qemu-system-x86_64",
"xenfv", "x86_64", VIR_DOMAIN_VIRT_XEN);
#endif /* WITH_LIBXL */
return ret;
}
VIRT_TEST_MAIN_PRELOAD(mymain, abs_builddir "/.libs/domaincapsmock.so")