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libvirt/tests/testutilsqemu.c
Peter Krempa fd9aa4d17c qemuTestCapsCacheInsert: Rewrite caps cache insertion 
Until now we did 2 weird things when inserting the qemuCaps used for
individual test cases into the capability cache:

1) we inserted the same caps for all emulators
2) we always (expensively) copied them

Now when real capabilities are used we don't touch them at all just
simply inser them. This allows us one big optimization, by trading a
copy for just a virObjectRef as we can borrow the caps object to the
cache.

For fake caps we still copy them as we insert the fake machine types
into them, but second big optimization is to insert the capabilities
only for the architecture they belong to.

Additionally this commit also ensures that all other entries in the
cache for the binary are poisoned by empty caps so that it's obvious
that the test is doing the right thing.

Apart from this making actually more sense this shaves off more than 40%
of runtime from qemuxml2argvtest.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-01-07 09:25:14 +01:00

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#include <config.h>
#ifdef WITH_QEMU
# include "testutilsqemu.h"
# include "testutilshostcpus.h"
# include "testutils.h"
# include "viralloc.h"
# include "cpu_conf.h"
# include "qemu/qemu_driver.h"
# include "qemu/qemu_domain.h"
# define LIBVIRT_QEMU_CAPSPRIV_H_ALLOW
# include "qemu/qemu_capspriv.h"
# include "virstring.h"
# include "virfilecache.h"
# include "virutil.h"
# define VIR_FROM_THIS VIR_FROM_QEMU
virCPUDef *cpuDefault;
virCPUDef *cpuHaswell;
virCPUDef *cpuPower8;
virCPUDef *cpuPower9;
static const char *qemu_emulators[VIR_ARCH_LAST] = {
[VIR_ARCH_I686] = "/usr/bin/qemu-system-i386",
[VIR_ARCH_X86_64] = "/usr/bin/qemu-system-x86_64",
[VIR_ARCH_AARCH64] = "/usr/bin/qemu-system-aarch64",
[VIR_ARCH_ARMV7L] = "/usr/bin/qemu-system-arm",
[VIR_ARCH_PPC64] = "/usr/bin/qemu-system-ppc64",
[VIR_ARCH_PPC] = "/usr/bin/qemu-system-ppc",
[VIR_ARCH_RISCV32] = "/usr/bin/qemu-system-riscv32",
[VIR_ARCH_RISCV64] = "/usr/bin/qemu-system-riscv64",
[VIR_ARCH_S390X] = "/usr/bin/qemu-system-s390x",
[VIR_ARCH_SPARC] = "/usr/bin/qemu-system-sparc",
};
static const virArch arch_alias[VIR_ARCH_LAST] = {
[VIR_ARCH_PPC64LE] = VIR_ARCH_PPC64,
[VIR_ARCH_ARMV6L] = VIR_ARCH_ARMV7L,
};
static const char *const i386_machines[] = {
"pc", NULL
};
static const char *const x86_64_machines[] = {
"pc", "q35", NULL
};
static const char *const aarch64_machines[] = {
"virt", "virt-2.6", "versatilepb", NULL
};
static const char *const arm_machines[] = {
"vexpress-a9", "virt", NULL
};
static const char *const ppc64_machines[] = {
"pseries", NULL
};
static const char *const ppc_machines[] = {
"ppce500", NULL
};
static const char *const riscv32_machines[] = {
"virt", NULL
};
static const char *const riscv64_machines[] = {
"virt", NULL
};
static const char *const s390x_machines[] = {
"s390-ccw-virtio", NULL
};
static const char *const sparc_machines[] = {
"SS-5", NULL
};
static const char *const *qemu_machines[VIR_ARCH_LAST] = {
[VIR_ARCH_I686] = i386_machines,
[VIR_ARCH_X86_64] = x86_64_machines,
[VIR_ARCH_AARCH64] = aarch64_machines,
[VIR_ARCH_ARMV7L] = arm_machines,
[VIR_ARCH_PPC64] = ppc64_machines,
[VIR_ARCH_PPC] = ppc_machines,
[VIR_ARCH_RISCV32] = riscv32_machines,
[VIR_ARCH_RISCV64] = riscv64_machines,
[VIR_ARCH_S390X] = s390x_machines,
[VIR_ARCH_SPARC] = sparc_machines,
};
static const char *const *kvm_machines[VIR_ARCH_LAST] = {
[VIR_ARCH_I686] = i386_machines,
[VIR_ARCH_X86_64] = x86_64_machines,
[VIR_ARCH_AARCH64] = aarch64_machines,
[VIR_ARCH_ARMV7L] = arm_machines,
[VIR_ARCH_PPC64] = ppc64_machines,
[VIR_ARCH_PPC] = ppc_machines,
[VIR_ARCH_RISCV32] = riscv32_machines,
[VIR_ARCH_RISCV64] = riscv64_machines,
[VIR_ARCH_S390X] = s390x_machines,
};
static const char *qemu_default_ram_id[VIR_ARCH_LAST] = {
[VIR_ARCH_I686] = "pc.ram",
[VIR_ARCH_X86_64] = "pc.ram",
[VIR_ARCH_AARCH64] = "mach-virt.ram",
[VIR_ARCH_ARMV7L] = "vexpress.highmem",
[VIR_ARCH_PPC64] = "ppc_spapr.ram",
[VIR_ARCH_PPC] = "ppc_spapr.ram",
[VIR_ARCH_S390X] = "s390.ram",
[VIR_ARCH_SPARC] = "sun4m.ram",
};
char *
virFindFileInPath(const char *file)
{
if (g_str_has_prefix(file, "qemu-system") ||
g_str_equal(file, "qemu-kvm")) {
return g_strdup_printf("/usr/bin/%s", file);
}
/* Nothing in tests should be relying on real files
* in host OS, so we return NULL to try to force
* an error in such a case
*/
return NULL;
}
virCapsHostNUMA *
virCapabilitiesHostNUMANewHost(void)
{
/*
* Build a NUMA topology with cell_id (NUMA node id
* being 3(0 + 3),4(1 + 3), 5 and 6
*/
return virTestCapsBuildNUMATopology(3);
}
void
virHostCPUX86GetCPUID(uint32_t leaf,
uint32_t extended,
uint32_t *eax,
uint32_t *ebx,
uint32_t *ecx,
uint32_t *edx)
{
if (eax)
*eax = 0;
if (ebx)
*ebx = 0;
if (ecx)
*ecx = 0;
if (edx)
*edx = 0;
if (leaf == 0x8000001F && extended == 0) {
if (ecx)
*ecx = 509;
if (edx)
*edx = 451;
}
}
static int
testQemuAddGuest(virCaps *caps,
virArch arch)
{
size_t nmachines;
virCapsGuestMachine **machines = NULL;
virCapsGuest *guest;
virArch emu_arch = arch;
if (arch_alias[arch] != VIR_ARCH_NONE)
emu_arch = arch_alias[arch];
if (qemu_emulators[emu_arch] == NULL)
return 0;
nmachines = g_strv_length((gchar **)qemu_machines[emu_arch]);
machines = virCapabilitiesAllocMachines(qemu_machines[emu_arch],
nmachines);
if (machines == NULL)
goto error;
guest = virCapabilitiesAddGuest(caps, VIR_DOMAIN_OSTYPE_HVM,
arch, qemu_emulators[emu_arch],
NULL, nmachines, machines);
machines = NULL;
nmachines = 0;
if (arch == VIR_ARCH_I686 ||
arch == VIR_ARCH_X86_64)
virCapabilitiesAddGuestFeature(guest, VIR_CAPS_GUEST_FEATURE_TYPE_CPUSELECTION);
virCapabilitiesAddGuestDomain(guest, VIR_DOMAIN_VIRT_QEMU,
NULL, NULL, 0, NULL);
if (kvm_machines[emu_arch] != NULL) {
nmachines = g_strv_length((char **)kvm_machines[emu_arch]);
machines = virCapabilitiesAllocMachines(kvm_machines[emu_arch],
nmachines);
if (machines == NULL)
goto error;
virCapabilitiesAddGuestDomain(guest, VIR_DOMAIN_VIRT_KVM,
qemu_emulators[emu_arch],
NULL, nmachines, machines);
}
return 0;
error:
virCapabilitiesFreeMachines(machines, nmachines);
return -1;
}
virCaps *testQemuCapsInit(void)
{
virCaps *caps;
size_t i;
if (!(caps = virCapabilitiesNew(VIR_ARCH_X86_64, false, false)))
return NULL;
/* Add dummy 'none' security_driver. This is equal to setting
* security_driver = "none" in qemu.conf. */
caps->host.secModels = g_new0(virCapsHostSecModel, 1);
caps->host.nsecModels = 1;
caps->host.secModels[0].model = g_strdup("none");
caps->host.secModels[0].doi = g_strdup("0");
if (!(caps->host.numa = virCapabilitiesHostNUMANewHost()))
goto cleanup;
for (i = 0; i < VIR_ARCH_LAST; i++) {
if (testQemuAddGuest(caps, i) < 0)
goto cleanup;
}
if (virTestGetDebug()) {
g_autofree char *caps_str = NULL;
caps_str = virCapabilitiesFormatXML(caps);
if (!caps_str)
goto cleanup;
VIR_TEST_DEBUG("QEMU driver capabilities:\n%s", caps_str);
}
return caps;
cleanup:
caps->host.cpu = NULL;
virObjectUnref(caps);
return NULL;
}
void
qemuTestSetHostArch(virQEMUDriver *driver,
virArch arch)
{
if (arch == VIR_ARCH_NONE)
arch = VIR_ARCH_X86_64;
virTestHostArch = arch;
driver->hostarch = virArchFromHost();
driver->caps->host.arch = virArchFromHost();
qemuTestSetHostCPU(driver, arch, NULL);
}
void
qemuTestSetHostCPU(virQEMUDriver *driver,
virArch arch,
virCPUDef *cpu)
{
if (!cpu) {
if (ARCH_IS_X86(arch))
cpu = cpuDefault;
else if (ARCH_IS_PPC64(arch))
cpu = cpuPower8;
}
g_unsetenv("VIR_TEST_MOCK_FAKE_HOST_CPU");
if (cpu) {
if (cpu->model)
g_setenv("VIR_TEST_MOCK_FAKE_HOST_CPU", cpu->model, TRUE);
}
if (driver) {
if (cpu)
driver->caps->host.arch = cpu->arch;
driver->caps->host.cpu = cpu;
virCPUDefFree(driver->hostcpu);
if (cpu)
virCPUDefRef(cpu);
driver->hostcpu = cpu;
}
}
virQEMUCaps *
qemuTestParseCapabilitiesArch(virArch arch,
const char *capsFile)
{
g_autoptr(virQEMUCaps) qemuCaps = NULL;
g_autofree char *binary = g_strdup_printf("/usr/bin/qemu-system-%s",
virArchToString(arch));
if (!(qemuCaps = virQEMUCapsNewBinary(binary)) ||
virQEMUCapsLoadCache(arch, qemuCaps, capsFile, true) < 0)
return NULL;
return g_steal_pointer(&qemuCaps);
}
void qemuTestDriverFree(virQEMUDriver *driver)
{
virMutexDestroy(&driver->lock);
if (driver->config) {
virFileDeleteTree(driver->config->stateDir);
virFileDeleteTree(driver->config->configDir);
}
virObjectUnref(driver->qemuCapsCache);
virObjectUnref(driver->xmlopt);
virObjectUnref(driver->caps);
virObjectUnref(driver->config);
virObjectUnref(driver->securityManager);
virCPUDefFree(cpuDefault);
virCPUDefFree(cpuHaswell);
virCPUDefFree(cpuPower8);
virCPUDefFree(cpuPower9);
}
static void
qemuTestCapsPopulateFakeMachines(virQEMUCaps *caps,
virArch arch)
{
size_t i;
const char *defaultRAMid = NULL;
/* default-ram-id appeared in QEMU 5.2.0. Reflect
* this in our capabilities, i.e. set it for new
* enough versions only. */
if (virQEMUCapsGetVersion(caps) >= 5002000)
defaultRAMid = qemu_default_ram_id[arch];
virQEMUCapsSetArch(caps, arch);
for (i = 0; qemu_machines[arch][i] != NULL; i++) {
virQEMUCapsAddMachine(caps,
VIR_DOMAIN_VIRT_QEMU,
qemu_machines[arch][i],
NULL,
NULL,
0,
false,
false,
true,
defaultRAMid,
false);
virQEMUCapsSet(caps, QEMU_CAPS_TCG);
}
if (kvm_machines[arch] != NULL) {
for (i = 0; kvm_machines[arch][i] != NULL; i++) {
virQEMUCapsAddMachine(caps,
VIR_DOMAIN_VIRT_KVM,
kvm_machines[arch][i],
NULL,
NULL,
0,
false,
false,
true,
defaultRAMid,
false);
virQEMUCapsSet(caps, QEMU_CAPS_KVM);
}
}
}
static int
qemuTestCapsCacheInsertData(virFileCache *cache,
const char *binary,
virQEMUCaps *caps)
{
if (virFileCacheInsertData(cache, binary, virObjectRef(caps)) < 0) {
virObjectUnref(caps);
return -1;
}
return 0;
}
int qemuTestCapsCacheInsert(virFileCache *cache,
virQEMUCaps *caps)
{
size_t i;
if (caps && virQEMUCapsGetArch(caps) != VIR_ARCH_NONE) {
/* for capabilities which have architecture set we populate only the
* given architecture and poison all other so that the test doesn't
* accidentally test a weird combination */
virArch arch = virQEMUCapsGetArch(caps);
g_autoptr(virQEMUCaps) emptyCaps = virQEMUCapsNew();
g_autoptr(virQEMUCaps) copyCaps = NULL;
virQEMUCaps *effCaps = caps;
if (!emptyCaps)
return -1;
if (arch_alias[arch] != VIR_ARCH_NONE)
arch = arch_alias[arch];
if (qemu_emulators[arch]) {
/* if we are dealing with fake caps we need to populate machine types */
if (!virQEMUCapsHasMachines(caps)) {
if (!(copyCaps = effCaps = virQEMUCapsNewCopy(caps)))
return -1;
qemuTestCapsPopulateFakeMachines(copyCaps, arch);
}
if (qemuTestCapsCacheInsertData(cache, qemu_emulators[arch], effCaps) < 0)
return -1;
}
for (i = 0; i < G_N_ELEMENTS(qemu_emulators); i++) {
if (!qemu_emulators[i])
continue;
if (i == arch)
continue;
if (qemuTestCapsCacheInsertData(cache, qemu_emulators[i], emptyCaps) < 0)
return -1;
}
} else {
/* in case when caps are missing or are missing architecture, we populate
* everything */
for (i = 0; i < G_N_ELEMENTS(qemu_emulators); i++) {
g_autoptr(virQEMUCaps) tmp = NULL;
if (qemu_emulators[i] == NULL)
continue;
if (caps)
tmp = virQEMUCapsNewCopy(caps);
else
tmp = virQEMUCapsNew();
if (!tmp)
return -1;
qemuTestCapsPopulateFakeMachines(tmp, i);
if (qemuTestCapsCacheInsertData(cache, qemu_emulators[i], tmp) < 0)
return -1;
}
}
return 0;
}
# define STATEDIRTEMPLATE abs_builddir "/qemustatedir-XXXXXX"
# define CONFIGDIRTEMPLATE abs_builddir "/qemuconfigdir-XXXXXX"
int qemuTestDriverInit(virQEMUDriver *driver)
{
virSecurityManager *mgr = NULL;
char statedir[] = STATEDIRTEMPLATE;
char configdir[] = CONFIGDIRTEMPLATE;
memset(driver, 0, sizeof(*driver));
if (!(cpuDefault = virCPUDefCopy(&cpuDefaultData)) ||
!(cpuHaswell = virCPUDefCopy(&cpuHaswellData)) ||
!(cpuPower8 = virCPUDefCopy(&cpuPower8Data)) ||
!(cpuPower9 = virCPUDefCopy(&cpuPower9Data)))
return -1;
if (virMutexInit(&driver->lock) < 0)
return -1;
driver->hostarch = virArchFromHost();
driver->config = virQEMUDriverConfigNew(false, NULL);
if (!driver->config)
goto error;
/* Do this early so that qemuTestDriverFree() doesn't see (unlink) the real
* dirs. */
VIR_FREE(driver->config->stateDir);
VIR_FREE(driver->config->configDir);
/* Overwrite some default paths so it's consistent for tests. */
VIR_FREE(driver->config->libDir);
VIR_FREE(driver->config->channelTargetDir);
driver->config->libDir = g_strdup("/tmp/lib");
driver->config->channelTargetDir = g_strdup("/tmp/channel");
if (!g_mkdtemp(statedir)) {
fprintf(stderr, "Cannot create fake stateDir");
goto error;
}
driver->config->stateDir = g_strdup(statedir);
if (!g_mkdtemp(configdir)) {
fprintf(stderr, "Cannot create fake configDir");
goto error;
}
driver->config->configDir = g_strdup(configdir);
driver->caps = testQemuCapsInit();
if (!driver->caps)
goto error;
/* Using /dev/null for libDir and cacheDir automatically produces errors
* upon attempt to use any of them */
driver->qemuCapsCache = virQEMUCapsCacheNew("/dev/null", "/dev/null", 0, 0);
if (!driver->qemuCapsCache)
goto error;
driver->xmlopt = virQEMUDriverCreateXMLConf(driver, "none");
if (!driver->xmlopt)
goto error;
if (qemuTestCapsCacheInsert(driver->qemuCapsCache, NULL) < 0)
goto error;
if (!(mgr = virSecurityManagerNew("none", "qemu",
VIR_SECURITY_MANAGER_PRIVILEGED)))
goto error;
if (!(driver->securityManager = virSecurityManagerNewStack(mgr)))
goto error;
qemuTestSetHostCPU(driver, driver->hostarch, NULL);
return 0;
error:
virObjectUnref(mgr);
qemuTestDriverFree(driver);
return -1;
}
int
testQemuCapsSetGIC(virQEMUCaps *qemuCaps,
int gic)
{
virGICCapability *gicCapabilities = NULL;
size_t ngicCapabilities = 0;
gicCapabilities = g_new0(virGICCapability, 2);
# define IMPL_BOTH \
VIR_GIC_IMPLEMENTATION_KERNEL|VIR_GIC_IMPLEMENTATION_EMULATED
if (gic & GIC_V2) {
gicCapabilities[ngicCapabilities].version = VIR_GIC_VERSION_2;
gicCapabilities[ngicCapabilities].implementation = IMPL_BOTH;
ngicCapabilities++;
}
if (gic & GIC_V3) {
gicCapabilities[ngicCapabilities].version = VIR_GIC_VERSION_3;
gicCapabilities[ngicCapabilities].implementation = IMPL_BOTH;
ngicCapabilities++;
}
# undef IMPL_BOTH
virQEMUCapsSetGICCapabilities(qemuCaps,
gicCapabilities, ngicCapabilities);
return 0;
}
#endif
char *
testQemuGetLatestCapsForArch(const char *arch,
const char *suffix)
{
struct dirent *ent;
g_autoptr(DIR) dir = NULL;
int rc;
g_autofree char *fullsuffix = NULL;
unsigned long maxver = 0;
unsigned long ver;
g_autofree char *maxname = NULL;
fullsuffix = g_strdup_printf("%s.%s", arch, suffix);
if (virDirOpen(&dir, TEST_QEMU_CAPS_PATH) < 0)
return NULL;
while ((rc = virDirRead(dir, &ent, TEST_QEMU_CAPS_PATH)) > 0) {
g_autofree char *tmp = NULL;
tmp = g_strdup(STRSKIP(ent->d_name, "caps_"));
if (!tmp)
continue;
if (!virStringStripSuffix(tmp, fullsuffix))
continue;
if (virParseVersionString(tmp, &ver, false) < 0) {
VIR_TEST_DEBUG("skipping caps file '%s'", ent->d_name);
continue;
}
if (ver > maxver) {
g_free(maxname);
maxname = g_strdup(ent->d_name);
maxver = ver;
}
}
if (rc < 0)
return NULL;
if (!maxname) {
VIR_TEST_VERBOSE("failed to find capabilities for '%s' in '%s'",
arch, TEST_QEMU_CAPS_PATH);
return NULL;
}
return g_strdup_printf("%s/%s", TEST_QEMU_CAPS_PATH, maxname);
}
GHashTable *
testQemuGetLatestCaps(void)
{
const char *archs[] = {
"aarch64",
"ppc64",
"riscv64",
"s390x",
"x86_64",
};
g_autoptr(GHashTable) capslatest = virHashNew(g_free);
size_t i;
VIR_TEST_VERBOSE("");
for (i = 0; i < G_N_ELEMENTS(archs); ++i) {
char *cap = testQemuGetLatestCapsForArch(archs[i], "xml");
if (!cap || virHashAddEntry(capslatest, archs[i], cap) < 0)
return NULL;
VIR_TEST_VERBOSE("latest caps for %s: %s", archs[i], cap);
}
VIR_TEST_VERBOSE("");
return g_steal_pointer(&capslatest);
}
int
testQemuCapsIterate(const char *suffix,
testQemuCapsIterateCallback callback,
void *opaque)
{
struct dirent *ent;
g_autoptr(DIR) dir = NULL;
int rc;
bool fail = false;
if (!callback)
return 0;
/* Validate suffix */
if (!STRPREFIX(suffix, ".")) {
VIR_TEST_VERBOSE("malformed suffix '%s'", suffix);
return -1;
}
if (virDirOpen(&dir, TEST_QEMU_CAPS_PATH) < 0)
return -1;
while ((rc = virDirRead(dir, &ent, TEST_QEMU_CAPS_PATH)) > 0) {
g_autofree char *tmp = g_strdup(ent->d_name);
char *version = NULL;
char *archName = NULL;
/* Strip the trailing suffix, moving on if it's not present */
if (!virStringStripSuffix(tmp, suffix))
continue;
/* Strip the leading prefix */
if (!(version = STRSKIP(tmp, "caps_"))) {
VIR_TEST_VERBOSE("malformed file name '%s'", ent->d_name);
return -1;
}
/* Find the last dot */
if (!(archName = strrchr(tmp, '.'))) {
VIR_TEST_VERBOSE("malformed file name '%s'", ent->d_name);
return -1;
}
/* The version number and the architecture name are separated by
* a dot: overwriting that dot with \0 results in both being usable
* as independent, null-terminated strings */
archName[0] = '\0';
archName++;
/* Run the user-provided callback.
*
* We skip the dot that, as verified earlier, starts the suffix
* to make it nicer to rebuild the original file name from inside
* the callback.
*/
if (callback(TEST_QEMU_CAPS_PATH, "caps", version,
archName, suffix + 1, opaque) < 0)
fail = true;
}
if (rc < 0 || fail)
return -1;
return 0;
}
void
testQemuInfoSetArgs(struct testQemuInfo *info,
struct testQemuConf *conf, ...)
{
va_list argptr;
testQemuInfoArgName argname;
int flag;
if (!(info->args.fakeCaps = virQEMUCapsNew()))
abort();
info->conf = conf;
info->args.newargs = true;
va_start(argptr, conf);
while ((argname = va_arg(argptr, testQemuInfoArgName)) != ARG_END) {
switch (argname) {
case ARG_QEMU_CAPS:
info->args.fakeCapsUsed = true;
while ((flag = va_arg(argptr, int)) < QEMU_CAPS_LAST)
virQEMUCapsSet(info->args.fakeCaps, flag);
break;
case ARG_GIC:
info->args.gic = va_arg(argptr, int);
break;
case ARG_MIGRATE_FROM:
info->migrateFrom = va_arg(argptr, char *);
break;
case ARG_MIGRATE_FD:
info->migrateFd = va_arg(argptr, int);
break;
case ARG_FLAGS:
info->flags = va_arg(argptr, int);
break;
case ARG_PARSEFLAGS:
info->parseFlags = va_arg(argptr, int);
break;
case ARG_CAPS_ARCH:
info->args.capsarch = va_arg(argptr, char *);
break;
case ARG_CAPS_VER:
info->args.capsver = va_arg(argptr, char *);
break;
case ARG_END:
default:
info->args.invalidarg = true;
break;
}
if (info->args.invalidarg)
break;
}
va_end(argptr);
}
int
testQemuInfoInitArgs(struct testQemuInfo *info)
{
g_autofree char *capsfile = NULL;
if (!info->args.newargs)
return 0;
info->args.newargs = false;
if (info->args.invalidarg) {
fprintf(stderr, "Invalid argument encountered by 'testQemuInfoSetArgs'\n");
return -1;
}
if (!!info->args.capsarch ^ !!info->args.capsver) {
fprintf(stderr, "ARG_CAPS_ARCH and ARG_CAPS_VER must be specified together.\n");
return -1;
}
if (info->args.capsarch && info->args.capsver) {
bool stripmachinealiases = false;
virQEMUCaps *cachedcaps = NULL;
info->arch = virArchFromString(info->args.capsarch);
if (STREQ(info->args.capsver, "latest")) {
capsfile = g_strdup(virHashLookup(info->conf->capslatest, info->args.capsarch));
if (!capsfile) {
fprintf(stderr, "'latest' caps for '%s' were not found\n", info->args.capsarch);
return -1;
}
stripmachinealiases = true;
} else {
capsfile = g_strdup_printf("%s/caps_%s.%s.xml",
TEST_QEMU_CAPS_PATH,
info->args.capsver,
info->args.capsarch);
}
if (!g_hash_table_lookup_extended(info->conf->capscache, capsfile, NULL, (void **) &cachedcaps)) {
if (!(cachedcaps = qemuTestParseCapabilitiesArch(info->arch, capsfile)))
return -1;
g_hash_table_insert(info->conf->capscache, g_strdup(capsfile), cachedcaps);
}
if (!(info->qemuCaps = virQEMUCapsNewCopy(cachedcaps)))
return -1;
if (info->args.fakeCapsUsed) {
size_t i;
for (i = 0; i < QEMU_CAPS_LAST; i++) {
if (virQEMUCapsGet(info->args.fakeCaps, i)) {
virQEMUCapsSet(info->qemuCaps, i);
}
}
}
if (stripmachinealiases)
virQEMUCapsStripMachineAliases(info->qemuCaps);
info->flags |= FLAG_REAL_CAPS;
/* provide path to the replies file for schema testing */
capsfile[strlen(capsfile) - 3] = '\0';
info->schemafile = g_strdup_printf("%sreplies", capsfile);
} else {
info->qemuCaps = g_steal_pointer(&info->args.fakeCaps);
}
if (info->args.gic != GIC_NONE &&
testQemuCapsSetGIC(info->qemuCaps, info->args.gic) < 0)
return -1;
return 0;
}
void
testQemuInfoClear(struct testQemuInfo *info)
{
VIR_FREE(info->infile);
VIR_FREE(info->outfile);
VIR_FREE(info->schemafile);
VIR_FREE(info->errfile);
virObjectUnref(info->qemuCaps);
g_clear_pointer(&info->args.fakeCaps, virObjectUnref);
}
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