#include #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", "isapc", NULL }; /** * Oldest supported qemu-2.11 supports machine types back to pc-0.10. */ static const char *const x86_64_machines[] = { "pc", "isapc", "q35", "pc-1.0", "pc-1.2", "pc-i440fx-1.4", "pc-i440fx-2.1", "pc-i440fx-2.3", "pc-i440fx-2.5", "pc-i440fx-2.6", "pc-i440fx-2.9", "pc-i440fx-2.12", "pc-q35-2.3", "pc-q35-2.4", "pc-q35-2.5", "pc-q35-2.7", "pc-q35-2.10", NULL }; static const char *const aarch64_machines[] = { "virt", "virt-2.6", "versatilepb", NULL }; static const char *const arm_machines[] = { "vexpress-a9", "vexpress-a15", "versatilepb", "virt", NULL }; static const char *const ppc64_machines[] = { "pseries", NULL }; static const char *const ppc_machines[] = { "g3beige", "mac99", "prep", "ppce500", NULL }; static const char *const riscv32_machines[] = { "spike_v1.10", "spike_v1.9.1", "sifive_e", "virt", "sifive_u", NULL }; static const char *const riscv64_machines[] = { "spike_v1.10", "spike_v1.9.1", "sifive_e", "virt", "sifive_u", NULL }; static const char *const s390x_machines[] = { "s390-ccw-virtio", NULL }; static const char *const sparc_machines[] = { "SS-5", "LX", "SPARCClassic", "SPARCbook", "SS-10", "SS-20", "SS-4", "SS-600MP", "Voyager", "leon3_generic", 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); } int qemuTestCapsCacheInsert(virFileCache *cache, virQEMUCaps *caps) { size_t i, j; for (i = 0; i < G_N_ELEMENTS(qemu_emulators); i++) { virQEMUCaps *tmpCaps; if (qemu_emulators[i] == NULL) continue; if (caps) { tmpCaps = virQEMUCapsNewCopy(caps); } else { tmpCaps = virQEMUCapsNew(); } if (!tmpCaps) return -1; if (!virQEMUCapsHasMachines(tmpCaps)) { 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(tmpCaps) >= 5002000) defaultRAMid = qemu_default_ram_id[i]; virQEMUCapsSetArch(tmpCaps, i); for (j = 0; qemu_machines[i][j] != NULL; j++) { virQEMUCapsAddMachine(tmpCaps, VIR_DOMAIN_VIRT_QEMU, qemu_machines[i][j], NULL, NULL, 0, false, false, true, defaultRAMid, false); virQEMUCapsSet(tmpCaps, QEMU_CAPS_TCG); } if (kvm_machines[i] != NULL) { for (j = 0; kvm_machines[i][j] != NULL; j++) { virQEMUCapsAddMachine(tmpCaps, VIR_DOMAIN_VIRT_KVM, kvm_machines[i][j], NULL, NULL, 0, false, false, true, defaultRAMid, false); virQEMUCapsSet(tmpCaps, QEMU_CAPS_KVM); } } } if (virFileCacheInsertData(cache, qemu_emulators[i], tmpCaps) < 0) { virObjectUnref(tmpCaps); 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; if (info->args.fakeCapsUsed) { fprintf(stderr, "ARG_QEMU_CAPS can not be combined with ARG_CAPS_ARCH or ARG_CAPS_VER\n"); return -1; } 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 (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); }