libvirt/tests/qemumemlocktest.c

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#include <config.h>
#include <unistd.h>
#include <sys/types.h>
#include <fcntl.h>
#include "testutils.h"
#ifdef WITH_QEMU
# include "datatypes.h"
# include "internal.h"
# include "virstring.h"
# include "conf/domain_conf.h"
# include "qemu/qemu_domain.h"
# include "testutilsqemu.h"
# define VIR_FROM_THIS VIR_FROM_QEMU
static virQEMUDriver driver;
struct testInfo {
const char *name;
unsigned long long memlock;
};
static int
testCompareMemLock(const void *data)
{
const struct testInfo *info = data;
g_autoptr(virDomainDef) def = NULL;
g_autofree char *xml = NULL;
xml = g_strdup_printf("%s/qemumemlockdata/qemumemlock-%s.xml", abs_srcdir,
info->name);
if (!(def = virDomainDefParseFile(xml, driver.xmlopt, NULL,
VIR_DOMAIN_DEF_PARSE_INACTIVE))) {
return -1;
}
return virTestCompareToULL(info->memlock, qemuDomainGetMemLockLimitBytes(def, false));
}
# define FAKEROOTDIRTEMPLATE abs_builddir "/fakerootdir-XXXXXX"
static int
mymain(void)
{
int ret = 0;
g_autofree char *fakerootdir = NULL;
g_autoptr(virQEMUCaps) qemuCaps = NULL;
fakerootdir = g_strdup(FAKEROOTDIRTEMPLATE);
if (!g_mkdtemp(fakerootdir)) {
fprintf(stderr, "Cannot create fakerootdir");
abort();
}
g_setenv("LIBVIRT_FAKE_ROOT_DIR", fakerootdir, TRUE);
if (qemuTestDriverInit(&driver) < 0)
return EXIT_FAILURE;
driver.privileged = true;
# define DO_TEST(name, memlock) \
do { \
static struct testInfo info = { \
name, memlock \
}; \
if (virTestRun("QEMU MEMLOCK " name, testCompareMemLock, &info) < 0) \
ret = -1; \
} while (0)
/* The tests below make sure that the memory locking limit is being
* calculated correctly in a number of situations. Each test is
* performed both on x86_64/pc and ppc64/pseries in order to account
* for some architecture-specific details.
*
* kvm: simple KMV guest
* tcg: simple TCG guest
*
* hardlimit: guest where <memtune><hard_limit> has been configured
* locked: guest where <memoryBacking><locked> has been enabled
* hostdev: guest that has some hostdev assigned
*
* The remaining tests cover different combinations of the above to
* ensure settings are prioritized as expected.
*/
qemuTestSetHostArch(&driver, VIR_ARCH_X86_64);
DO_TEST("pc-kvm", 0);
DO_TEST("pc-tcg", 0);
if (!(qemuCaps = virQEMUCapsNew())) {
ret = -1;
goto cleanup;
}
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DEVICE_VFIO_PCI);
if (qemuTestCapsCacheInsert(driver.qemuCapsCache, qemuCaps) < 0) {
ret = -1;
goto cleanup;
};
DO_TEST("pc-hardlimit", 2147483648);
DO_TEST("pc-locked", VIR_DOMAIN_MEMORY_PARAM_UNLIMITED);
DO_TEST("pc-hostdev", 2147483648);
DO_TEST("pc-hardlimit+locked", 2147483648);
DO_TEST("pc-hardlimit+hostdev", 2147483648);
DO_TEST("pc-hardlimit+locked+hostdev", 2147483648);
DO_TEST("pc-locked+hostdev", VIR_DOMAIN_MEMORY_PARAM_UNLIMITED);
qemuTestSetHostArch(&driver, VIR_ARCH_PPC64);
virQEMUCapsSet(qemuCaps, QEMU_CAPS_DEVICE_SPAPR_PCI_HOST_BRIDGE);
if (qemuTestCapsCacheInsert(driver.qemuCapsCache, qemuCaps) < 0) {
ret = -1;
goto cleanup;
};
DO_TEST("pseries-kvm", 20971520);
DO_TEST("pseries-tcg", 0);
DO_TEST("pseries-hardlimit", 2147483648);
DO_TEST("pseries-locked", VIR_DOMAIN_MEMORY_PARAM_UNLIMITED);
DO_TEST("pseries-hostdev", 4320133120);
DO_TEST("pseries-hardlimit+locked", 2147483648);
DO_TEST("pseries-hardlimit+hostdev", 2147483648);
DO_TEST("pseries-hardlimit+locked+hostdev", 2147483648);
DO_TEST("pseries-locked+hostdev", VIR_DOMAIN_MEMORY_PARAM_UNLIMITED);
cleanup:
if (getenv("LIBVIRT_SKIP_CLEANUP") == NULL)
virFileDeleteTree(fakerootdir);
qemuTestDriverFree(&driver);
return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
}
VIR_TEST_MAIN_PRELOAD(mymain,
VIR_TEST_MOCK("virpci"),
VIR_TEST_MOCK("domaincaps"))
#else
int
main(void)
{
return EXIT_AM_SKIP;
}
#endif /* WITH_QEMU */