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127e0b53ec
libvirt/tests/testutilsqemu.c
Jiri Denemark 127e0b53ec testutilsqemu: Helpers for changing host CPU and arch 
Changing a host architecture or a CPU is not as easy as assigning a new
value to the appropriate element in virCaps since there is a relation
between the CPU and host architecture (we don't really want to test
anything on an AArch64 host with core2duo CPU). This patch introduces
qemuTestSetHostArch and qemuTestSetHostCPU helpers which will make sure
the host architecture matches the host CPU.

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

625 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;
static virCPUFeatureDef cpuDefaultFeatures[] = {
{ (char *) "lahf_lm", -1 },
{ (char *) "xtpr", -1 },
{ (char *) "cx16", -1 },
{ (char *) "tm2", -1 },
{ (char *) "est", -1 },
{ (char *) "vmx", -1 },
{ (char *) "ds_cpl", -1 },
{ (char *) "pbe", -1 },
{ (char *) "tm", -1 },
{ (char *) "ht", -1 },
{ (char *) "ss", -1 },
{ (char *) "acpi", -1 },
{ (char *) "ds", -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 *) "lahf_lm", -1 },
{ (char *) "invtsc", -1 },
{ (char *) "abm", -1 },
{ (char *) "pdpe1gb", -1 },
{ (char *) "cmt", -1 },
{ (char *) "rdrand", -1 },
{ (char *) "f16c", -1 },
{ (char *) "osxsave", -1 },
{ (char *) "pdcm", -1 },
{ (char *) "xtpr", -1 },
{ (char *) "tm2", -1 },
{ (char *) "est", -1 },
{ (char *) "smx", -1 },
{ (char *) "vmx", -1 },
{ (char *) "ds_cpl", -1 },
{ (char *) "monitor", -1 },
{ (char *) "dtes64", -1 },
{ (char *) "pbe", -1 },
{ (char *) "tm", -1 },
{ (char *) "ht", -1 },
{ (char *) "ss", -1 },
{ (char *) "acpi", -1 },
{ (char *) "ds", -1 },
{ (char *) "vme", -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 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)))
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);
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;
}
if (cpu)
caps->host.arch = cpu->arch;
caps->host.cpu = cpu;
}
virQEMUCapsPtr
qemuTestParseCapabilities(const char *capsFile)
{
virQEMUCapsPtr qemuCaps = NULL;
time_t qemuctime;
time_t selfctime;
unsigned long version;
if (!(qemuCaps = virQEMUCapsNew()) ||
virQEMUCapsLoadCache(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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