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libvirt/tests/domaincapstest.c

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/*
* 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
fillAll(virDomainCapsPtr domCaps,
void *opaque ATTRIBUTE_UNUSED)
{
virDomainCapsOSPtr os = &domCaps->os;
virDomainCapsLoaderPtr loader = &os->loader;
virDomainCapsDeviceDiskPtr disk = &domCaps->disk;
virDomainCapsDeviceHostdevPtr hostdev = &domCaps->hostdev;
domCaps->maxvcpus = 255;
os->device.supported = true;
loader->device.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;
disk->device.supported = true;
SET_ALL_BITS(disk->diskDevice);
SET_ALL_BITS(disk->bus);
hostdev->device.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;
}
#ifdef WITH_QEMU
# include "testutilsqemu.h"
struct fillQemuCapsData {
virQEMUCapsPtr qemuCaps;
virQEMUDriverConfigPtr cfg;
};
static int
fillQemuCaps(virDomainCapsPtr domCaps,
void *opaque)
{
struct fillQemuCapsData *data = (struct fillQemuCapsData *) opaque;
virQEMUCapsPtr qemuCaps = data->qemuCaps;
virQEMUDriverConfigPtr cfg = data->cfg;
virDomainCapsLoaderPtr loader = &domCaps->os.loader;
if (virQEMUCapsFillDomainCaps(domCaps, qemuCaps,
cfg->loader, cfg->nloader) < 0)
return -1;
/* 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);
/* Moreover, 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/OVMF/OVMF_CODE.fd",
NULL) < 0)
return -1;
return 0;
}
#endif /* WITH_QEMU */
static virDomainCapsPtr
buildVirDomainCaps(const char *emulatorbin,
const char *machine,
virArch arch,
virDomainVirtType type,
virDomainCapsFill fillFunc,
void *opaque)
{
virDomainCapsPtr domCaps, ret = NULL;
if (!(domCaps = virDomainCapsNew(emulatorbin, machine, arch, type)))
goto cleanup;
if (fillFunc && fillFunc(domCaps, opaque) < 0) {
virObjectUnref(domCaps);
domCaps = NULL;
}
ret = domCaps;
cleanup:
return ret;
}
struct test_virDomainCapsFormatData {
const char *filename;
const char *emulatorbin;
const char *machine;
virArch arch;
virDomainVirtType type;
virDomainCapsFill fillFunc;
void *opaque;
};
static int
test_virDomainCapsFormat(const void *opaque)
{
struct test_virDomainCapsFormatData *data =
(struct test_virDomainCapsFormatData *) opaque;
virDomainCapsPtr domCaps = NULL;
char *path = NULL;
char *domCapsXML = NULL;
char *domCapsFromFile = NULL;
int ret = -1;
if (virAsprintf(&path, "%s/domaincapsschemadata/domaincaps-%s.xml",
abs_srcdir, data->filename) < 0)
goto cleanup;
if (virFileReadAll(path, 8192, &domCapsFromFile) < 0)
goto cleanup;
if (!(domCaps = buildVirDomainCaps(data->emulatorbin, data->machine,
data->arch, data->type,
data->fillFunc, data->opaque)))
goto cleanup;
if (!(domCapsXML = virDomainCapsFormat(domCaps)))
goto cleanup;
if (STRNEQ(domCapsFromFile, domCapsXML)) {
virtTestDifference(stderr, domCapsFromFile, domCapsXML);
goto cleanup;
}
ret = 0;
cleanup:
VIR_FREE(domCapsFromFile);
VIR_FREE(domCapsXML);
VIR_FREE(path);
virObjectUnref(domCaps);
return ret;
}
static int
mymain(void)
{
int ret = 0;
#define DO_TEST(Filename, Emulatorbin, Machine, Arch, Type, ...) \
do { \
struct test_virDomainCapsFormatData data = {.filename = Filename, \
.emulatorbin = Emulatorbin, .machine = Machine, .arch = Arch, \
.type = Type, __VA_ARGS__}; \
if (virtTestRun(Filename, test_virDomainCapsFormat, &data) < 0) \
ret = -1; \
} while (0)
DO_TEST("basic", "/bin/emulatorbin", "my-machine-type",
VIR_ARCH_X86_64, VIR_DOMAIN_VIRT_UML);
DO_TEST("full", "/bin/emulatorbin", "my-machine-type",
VIR_ARCH_X86_64, VIR_DOMAIN_VIRT_KVM, .fillFunc = fillAll);
#ifdef WITH_QEMU
virQEMUDriverConfigPtr cfg = virQEMUDriverConfigNew(false);
if (!cfg)
return EXIT_FAILURE;
# define DO_TEST_QEMU(Filename, QemuCapsFile, Emulatorbin, Machine, Arch, Type, ...) \
do { \
const char *capsPath = abs_srcdir "/qemucapabilitiesdata/" QemuCapsFile ".caps"; \
virQEMUCapsPtr qemuCaps = qemuTestParseCapabilities(capsPath); \
struct fillQemuCapsData fillData = {.qemuCaps = qemuCaps, .cfg = cfg}; \
struct test_virDomainCapsFormatData data = {.filename = Filename, \
.emulatorbin = Emulatorbin, .machine = Machine, .arch = Arch, \
.type = Type, .fillFunc = fillQemuCaps, .opaque = &fillData}; \
if (!qemuCaps) { \
fprintf(stderr, "Unable to build qemu caps from %s\n", capsPath); \
ret = -1; \
} else if (virtTestRun(Filename, test_virDomainCapsFormat, &data) < 0) \
ret = -1; \
} while (0)
DO_TEST_QEMU("qemu_1.6.50-1", "caps_1.6.50-1", "/usr/bin/qemu-system-x86_64",
"pc-1.2", VIR_ARCH_X86_64, VIR_DOMAIN_VIRT_KVM);
virObjectUnref(cfg);
#endif /* WITH_QEMU */
return ret;
}
VIRT_TEST_MAIN(mymain)