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libvirt/tests/testutilsqemu.c
Jiri Denemark 68c7011856 qemu: Store host-model CPU in qemu capabilities 
Host capabilities provide libvirt's view of the host CPU, but for a
useful support for host-model CPUs we really need a hypervisor's view of
the CPU. And since the view can be differ with emulator, qemu
capabilities is the best place to store the host CPU model.

This patch just copies the CPU model from host capabilities, but this
will change in the future.

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

640 lines
18 KiB
C
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#include <config.h>
#ifdef WITH_QEMU
# include <stdlib.h>
# include "testutilsqemu.h"
# include "testutils.h"
# include "viralloc.h"
# include "cpu_conf.h"
# include "qemu/qemu_driver.h"
# include "qemu/qemu_domain.h"
# define __QEMU_CAPSRIV_H_ALLOW__
# include "qemu/qemu_capspriv.h"
# include "virstring.h"
# define VIR_FROM_THIS VIR_FROM_QEMU
virCPUDefPtr cpuDefault;
virCPUDefPtr cpuHaswell;
virCPUDefPtr cpuPower8;
static virCPUFeatureDef cpuDefaultFeatures[] = {
{ (char *) "ds", -1 },
{ (char *) "acpi", -1 },
{ (char *) "ss", -1 },
{ (char *) "ht", -1 },
{ (char *) "tm", -1 },
{ (char *) "pbe", -1 },
{ (char *) "ds_cpl", -1 },
{ (char *) "vmx", -1 },
{ (char *) "est", -1 },
{ (char *) "tm2", -1 },
{ (char *) "cx16", -1 },
{ (char *) "xtpr", -1 },
{ (char *) "lahf_lm", -1 },
};
static virCPUDef cpuDefaultData = {
VIR_CPU_TYPE_HOST, /* type */
0, /* mode */
0, /* match */
VIR_ARCH_X86_64, /* arch */
(char *) "core2duo", /* model */
NULL, /* vendor_id */
0, /* fallback */
(char *) "Intel", /* vendor */
1, /* sockets */
2, /* cores */
1, /* threads */
ARRAY_CARDINALITY(cpuDefaultFeatures), /* nfeatures */
ARRAY_CARDINALITY(cpuDefaultFeatures), /* nfeatures_max */
cpuDefaultFeatures, /* features */
};
static virCPUFeatureDef cpuHaswellFeatures[] = {
{ (char *) "vme", -1 },
{ (char *) "ds", -1 },
{ (char *) "acpi", -1 },
{ (char *) "ss", -1 },
{ (char *) "ht", -1 },
{ (char *) "tm", -1 },
{ (char *) "pbe", -1 },
{ (char *) "dtes64", -1 },
{ (char *) "monitor", -1 },
{ (char *) "ds_cpl", -1 },
{ (char *) "vmx", -1 },
{ (char *) "smx", -1 },
{ (char *) "est", -1 },
{ (char *) "tm2", -1 },
{ (char *) "xtpr", -1 },
{ (char *) "pdcm", -1 },
{ (char *) "osxsave", -1 },
{ (char *) "f16c", -1 },
{ (char *) "rdrand", -1 },
{ (char *) "cmt", -1 },
{ (char *) "pdpe1gb", -1 },
{ (char *) "abm", -1 },
{ (char *) "invtsc", -1 },
{ (char *) "lahf_lm", -1 },
};
static virCPUDef cpuHaswellData = {
VIR_CPU_TYPE_HOST, /* type */
0, /* mode */
0, /* match */
VIR_ARCH_X86_64, /* arch */
(char *) "Haswell", /* model */
NULL, /* vendor_id */
0, /* fallback */
(char *) "Intel", /* vendor */
1, /* sockets */
2, /* cores */
2, /* threads */
ARRAY_CARDINALITY(cpuHaswellFeatures), /* nfeatures */
ARRAY_CARDINALITY(cpuHaswellFeatures), /* nfeatures_max */
cpuHaswellFeatures, /* features */
};
static virCPUDef cpuPower8Data = {
.type = VIR_CPU_TYPE_HOST,
.arch = VIR_ARCH_PPC64,
.model = (char *) "POWER8",
.sockets = 1,
.cores = 8,
.threads = 8,
};
static virCapsGuestMachinePtr *testQemuAllocMachines(int *nmachines)
{
virCapsGuestMachinePtr *machines;
static const char *const x86_machines[] = {
"pc", "isapc"
};
machines = virCapabilitiesAllocMachines(x86_machines,
ARRAY_CARDINALITY(x86_machines));
if (machines == NULL)
return NULL;
*nmachines = ARRAY_CARDINALITY(x86_machines);
return machines;
}
/* Newer versions of qemu have versioned machine types to allow
* compatibility with older releases.
* The 'pc' machine type is an alias of the newest machine type.
*/
static virCapsGuestMachinePtr *testQemuAllocNewerMachines(int *nmachines)
{
virCapsGuestMachinePtr *machines;
char *canonical;
static const char *const x86_machines[] = {
"pc-0.11", "pc", "pc-0.10", "isapc"
};
if (VIR_STRDUP(canonical, x86_machines[0]) < 0)
return NULL;
machines = virCapabilitiesAllocMachines(x86_machines,
ARRAY_CARDINALITY(x86_machines));
if (machines == NULL) {
VIR_FREE(canonical);
return NULL;
}
machines[1]->canonical = canonical;
*nmachines = ARRAY_CARDINALITY(x86_machines);
return machines;
}
static int testQemuAddPPC64Guest(virCapsPtr caps)
{
static const char *machine[] = { "pseries" };
virCapsGuestMachinePtr *machines = NULL;
virCapsGuestPtr guest;
machines = virCapabilitiesAllocMachines(machine, 1);
if (!machines)
goto error;
guest = virCapabilitiesAddGuest(caps, VIR_DOMAIN_OSTYPE_HVM, VIR_ARCH_PPC64,
"/usr/bin/qemu-system-ppc64", NULL,
1, machines);
if (!guest)
goto error;
if (!virCapabilitiesAddGuestDomain(guest, VIR_DOMAIN_VIRT_QEMU, NULL, NULL, 0, NULL))
goto error;
return 0;
error:
/* No way to free a guest? */
virCapabilitiesFreeMachines(machines, 1);
return -1;
}
static int testQemuAddPPC64LEGuest(virCapsPtr caps)
{
static const char *machine[] = { "pseries" };
virCapsGuestMachinePtr *machines = NULL;
virCapsGuestPtr guest;
machines = virCapabilitiesAllocMachines(machine, 1);
if (!machines)
goto error;
guest = virCapabilitiesAddGuest(caps, VIR_DOMAIN_OSTYPE_HVM, VIR_ARCH_PPC64LE,
"/usr/bin/qemu-system-ppc64", NULL,
1, machines);
if (!guest)
goto error;
if (!virCapabilitiesAddGuestDomain(guest, VIR_DOMAIN_VIRT_QEMU, NULL, NULL, 0, NULL))
goto error;
return 0;
error:
/* No way to free a guest? */
virCapabilitiesFreeMachines(machines, 1);
return -1;
}
static int testQemuAddPPCGuest(virCapsPtr caps)
{
static const char *machine[] = { "g3beige",
"mac99",
"prep",
"ppce500" };
virCapsGuestMachinePtr *machines = NULL;
virCapsGuestPtr guest;
machines = virCapabilitiesAllocMachines(machine, 1);
if (!machines)
goto error;
guest = virCapabilitiesAddGuest(caps, VIR_DOMAIN_OSTYPE_HVM, VIR_ARCH_PPC,
"/usr/bin/qemu-system-ppc", NULL,
1, machines);
if (!guest)
goto error;
if (!virCapabilitiesAddGuestDomain(guest, VIR_DOMAIN_VIRT_QEMU, NULL, NULL, 0, NULL))
goto error;
return 0;
error:
/* No way to free a guest? */
virCapabilitiesFreeMachines(machines, 1);
return -1;
}
static int testQemuAddS390Guest(virCapsPtr caps)
{
static const char *s390_machines[] = { "s390-virtio",
"s390-ccw-virtio" };
virCapsGuestMachinePtr *machines = NULL;
virCapsGuestPtr guest;
machines = virCapabilitiesAllocMachines(s390_machines,
ARRAY_CARDINALITY(s390_machines));
if (!machines)
goto error;
guest = virCapabilitiesAddGuest(caps, VIR_DOMAIN_OSTYPE_HVM, VIR_ARCH_S390X,
"/usr/bin/qemu-system-s390x", NULL,
ARRAY_CARDINALITY(s390_machines),
machines);
if (!guest)
goto error;
if (!virCapabilitiesAddGuestDomain(guest, VIR_DOMAIN_VIRT_QEMU, NULL, NULL, 0, NULL))
goto error;
return 0;
error:
virCapabilitiesFreeMachines(machines, ARRAY_CARDINALITY(s390_machines));
return -1;
}
static int testQemuAddArmGuest(virCapsPtr caps)
{
static const char *machines[] = { "vexpress-a9",
"vexpress-a15",
"versatilepb" };
virCapsGuestMachinePtr *capsmachines = NULL;
virCapsGuestPtr guest;
capsmachines = virCapabilitiesAllocMachines(machines,
ARRAY_CARDINALITY(machines));
if (!capsmachines)
goto error;
guest = virCapabilitiesAddGuest(caps, VIR_DOMAIN_OSTYPE_HVM, VIR_ARCH_ARMV7L,
"/usr/bin/qemu-system-arm", NULL,
ARRAY_CARDINALITY(machines),
capsmachines);
if (!guest)
goto error;
if (!virCapabilitiesAddGuestDomain(guest, VIR_DOMAIN_VIRT_QEMU, NULL, NULL, 0, NULL))
goto error;
return 0;
error:
virCapabilitiesFreeMachines(capsmachines, ARRAY_CARDINALITY(machines));
return -1;
}
static int testQemuAddAARCH64Guest(virCapsPtr caps)
{
static const char *machines[] = { "virt"};
virCapsGuestMachinePtr *capsmachines = NULL;
virCapsGuestPtr guest;
capsmachines = virCapabilitiesAllocMachines(machines,
ARRAY_CARDINALITY(machines));
if (!capsmachines)
goto error;
guest = virCapabilitiesAddGuest(caps, VIR_DOMAIN_OSTYPE_HVM, VIR_ARCH_AARCH64,
"/usr/bin/qemu-system-aarch64", NULL,
ARRAY_CARDINALITY(machines),
capsmachines);
if (!guest)
goto error;
if (!virCapabilitiesAddGuestDomain(guest, VIR_DOMAIN_VIRT_QEMU, NULL, NULL, 0, NULL))
goto error;
return 0;
error:
virCapabilitiesFreeMachines(capsmachines, ARRAY_CARDINALITY(machines));
return -1;
}
virCapsPtr testQemuCapsInit(void)
{
virCapsPtr caps;
virCapsGuestPtr guest;
virCapsGuestMachinePtr *machines = NULL;
int nmachines = 0;
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. */
if (VIR_ALLOC_N(caps->host.secModels, 1) < 0)
goto cleanup;
caps->host.nsecModels = 1;
if (VIR_STRDUP(caps->host.secModels[0].model, "none") < 0 ||
VIR_STRDUP(caps->host.secModels[0].doi, "0") < 0)
goto cleanup;
if (!(cpuDefault = virCPUDefCopy(&cpuDefaultData)) ||
!(cpuHaswell = virCPUDefCopy(&cpuHaswellData)) ||
!(cpuPower8 = virCPUDefCopy(&cpuPower8Data)))
goto cleanup;
qemuTestSetHostCPU(caps, NULL);
caps->host.nnumaCell_max = 4;
if ((machines = testQemuAllocMachines(&nmachines)) == NULL)
goto cleanup;
if ((guest = virCapabilitiesAddGuest(caps, VIR_DOMAIN_OSTYPE_HVM, VIR_ARCH_I686,
"/usr/bin/qemu", NULL,
nmachines, machines)) == NULL ||
!virCapabilitiesAddGuestFeature(guest, "cpuselection", true, false))
goto cleanup;
machines = NULL;
if (virCapabilitiesAddGuestDomain(guest,
VIR_DOMAIN_VIRT_QEMU,
NULL,
NULL,
0,
NULL) == NULL)
goto cleanup;
if ((machines = testQemuAllocMachines(&nmachines)) == NULL)
goto cleanup;
if (virCapabilitiesAddGuestDomain(guest,
VIR_DOMAIN_VIRT_KVM,
"/usr/bin/qemu-kvm",
NULL,
nmachines,
machines) == NULL)
goto cleanup;
machines = NULL;
if ((machines = testQemuAllocNewerMachines(&nmachines)) == NULL)
goto cleanup;
if ((guest = virCapabilitiesAddGuest(caps, VIR_DOMAIN_OSTYPE_HVM, VIR_ARCH_X86_64,
"/usr/bin/qemu-system-x86_64", NULL,
nmachines, machines)) == NULL ||
!virCapabilitiesAddGuestFeature(guest, "cpuselection", true, false))
goto cleanup;
machines = NULL;
if (virCapabilitiesAddGuestDomain(guest,
VIR_DOMAIN_VIRT_QEMU,
NULL,
NULL,
0,
NULL) == NULL)
goto cleanup;
if ((machines = testQemuAllocMachines(&nmachines)) == NULL)
goto cleanup;
if (virCapabilitiesAddGuestDomain(guest,
VIR_DOMAIN_VIRT_KVM,
"/usr/bin/kvm",
NULL,
nmachines,
machines) == NULL)
goto cleanup;
machines = NULL;
if (virCapabilitiesAddGuestDomain(guest,
VIR_DOMAIN_VIRT_KVM,
"/usr/bin/kvm",
NULL,
0,
NULL) == NULL)
goto cleanup;
if (testQemuAddPPC64Guest(caps))
goto cleanup;
if (testQemuAddPPC64LEGuest(caps))
goto cleanup;
if (testQemuAddPPCGuest(caps))
goto cleanup;
if (testQemuAddS390Guest(caps))
goto cleanup;
if (testQemuAddArmGuest(caps))
goto cleanup;
if (testQemuAddAARCH64Guest(caps))
goto cleanup;
if (virTestGetDebug()) {
char *caps_str;
caps_str = virCapabilitiesFormatXML(caps);
if (!caps_str)
goto cleanup;
VIR_TEST_DEBUG("QEMU driver capabilities:\n%s", caps_str);
VIR_FREE(caps_str);
}
return caps;
cleanup:
virCapabilitiesFreeMachines(machines, nmachines);
caps->host.cpu = NULL;
virCPUDefFree(cpuDefault);
virCPUDefFree(cpuHaswell);
virCPUDefFree(cpuPower8);
virObjectUnref(caps);
return NULL;
}
void
qemuTestSetHostArch(virCapsPtr caps,
virArch arch)
{
if (arch == VIR_ARCH_NONE)
arch = VIR_ARCH_X86_64;
caps->host.arch = arch;
qemuTestSetHostCPU(caps, NULL);
}
void
qemuTestSetHostCPU(virCapsPtr caps,
virCPUDefPtr cpu)
{
virArch arch = caps->host.arch;
if (!cpu) {
if (ARCH_IS_X86(arch))
cpu = cpuDefault;
else if (ARCH_IS_PPC64(arch))
cpu = cpuPower8;
}
if (cpu)
caps->host.arch = cpu->arch;
caps->host.cpu = cpu;
}
virQEMUCapsPtr
qemuTestParseCapabilities(virCapsPtr caps,
const char *capsFile)
{
virQEMUCapsPtr qemuCaps = NULL;
time_t qemuctime;
time_t selfctime;
unsigned long version;
if (!(qemuCaps = virQEMUCapsNew()) ||
virQEMUCapsLoadCache(caps, qemuCaps, capsFile,
&qemuctime, &selfctime, &version) < 0)
goto error;
return qemuCaps;
error:
virObjectUnref(qemuCaps);
return NULL;
}
void qemuTestDriverFree(virQEMUDriver *driver)
{
virMutexDestroy(&driver->lock);
virQEMUCapsCacheFree(driver->qemuCapsCache);
virObjectUnref(driver->xmlopt);
virObjectUnref(driver->caps);
virObjectUnref(driver->config);
virObjectUnref(driver->securityManager);
}
int qemuTestCapsCacheInsert(virQEMUCapsCachePtr cache, const char *binary,
virQEMUCapsPtr caps)
{
int ret;
if (caps) {
/* Our caps were created artificially, so we don't want
* virQEMUCapsCacheFree() to attempt to deallocate them */
virObjectRef(caps);
} else {
caps = virQEMUCapsNew();
if (!caps)
return -ENOMEM;
}
/* We can have repeating names for our test data sets,
* so make sure there's no old copy */
virHashRemoveEntry(cache->binaries, binary);
ret = virHashAddEntry(cache->binaries, binary, caps);
if (ret < 0)
virObjectUnref(caps);
else
qemuTestCapsName = binary;
return ret;
}
int qemuTestDriverInit(virQEMUDriver *driver)
{
virSecurityManagerPtr mgr = NULL;
memset(driver, 0, sizeof(*driver));
if (virMutexInit(&driver->lock) < 0)
return -1;
driver->config = virQEMUDriverConfigNew(false);
if (!driver->config)
goto error;
/* Overwrite some default paths so it's consistent for tests. */
VIR_FREE(driver->config->libDir);
VIR_FREE(driver->config->channelTargetDir);
if (VIR_STRDUP(driver->config->libDir, "/tmp/lib") < 0 ||
VIR_STRDUP(driver->config->channelTargetDir, "/tmp/channel") < 0)
goto error;
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);
if (!driver->xmlopt)
goto error;
if (qemuTestCapsCacheInsert(driver->qemuCapsCache, "empty", NULL) < 0)
goto error;
if (!(mgr = virSecurityManagerNew("none", "qemu",
VIR_SECURITY_MANAGER_PRIVILEGED)))
goto error;
if (!(driver->securityManager = virSecurityManagerNewStack(mgr)))
goto error;
return 0;
error:
virObjectUnref(mgr);
qemuTestDriverFree(driver);
return -1;
}
int
testQemuCapsSetGIC(virQEMUCapsPtr qemuCaps,
int gic)
{
virGICCapability *gicCapabilities = NULL;
size_t ngicCapabilities = 0;
int ret = -1;
if (VIR_ALLOC_N(gicCapabilities, 2) < 0)
goto out;
# 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);
ret = 0;
out:
return ret;
}
#endif
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