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tests: Introduce QEMU memory locking limit tests

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These tests cover a number of scenarios where we care about
the memory locking limit being set correctly for the guest
to work properly.
This commit is contained in:
Andrea Bolognani 2017-03-23 14:06:57 +01:00
parent 94918e2035
commit 8cfe7d977a
20 changed files with 445 additions and 0 deletions
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9
tests/Makefile.am
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@ -127,6 +127,7 @@ EXTRA_DIST = \
qemumonitorjsondata \
qemuxml2argvdata \
qemuxml2xmloutdata \
qemumemlockdata \
secretxml2xmlin \
securityselinuxhelperdata \
securityselinuxlabeldata \
@ -277,6 +278,7 @@ test_programs += qemuxml2argvtest qemuxml2xmltest \
qemuargv2xmltest qemuhelptest domainsnapshotxml2xmltest \
qemumonitortest qemumonitorjsontest qemuhotplugtest \
qemuagenttest qemucapabilitiestest qemucaps2xmltest \
qemumemlocktest \
qemucommandutiltest
test_helpers += qemucapsprobe
test_libraries += libqemumonitortestutils.la \
@ -659,6 +661,12 @@ domainsnapshotxml2xmltest_SOURCES = \
domainsnapshotxml2xmltest.c testutilsqemu.c testutilsqemu.h \
testutils.c testutils.h
domainsnapshotxml2xmltest_LDADD = $(qemu_LDADDS) $(LDADDS)
qemumemlocktest_SOURCES = \
qemumemlocktest.c \
testutilsqemu.c testutilsqemu.h \
testutils.c testutils.h
qemumemlocktest_LDADD = $(qemu_LDADDS) $(LDADDS)
else ! WITH_QEMU
EXTRA_DIST += qemuxml2argvtest.c qemuxml2xmltest.c qemuargv2xmltest.c \
qemuhelptest.c domainsnapshotxml2xmltest.c \
@ -666,6 +674,7 @@ EXTRA_DIST += qemuxml2argvtest.c qemuxml2xmltest.c qemuargv2xmltest.c \
qemumonitorjsontest.c qemuhotplugtest.c \
qemuagenttest.c qemucapabilitiestest.c \
qemucaps2xmltest.c qemucommandutiltest.c \
qemumemlocktest.c \
$(QEMUMONITORTESTUTILS_SOURCES)
endif ! WITH_QEMU

20
tests/qemumemlockdata/qemumemlock-pc-hardlimit+hostdev.xml Normal file
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@ -0,0 +1,20 @@
<domain type='kvm'>
<name>guest</name>
<memory unit='KiB'>1048576</memory>
<memtune>
<hard_limit unit='KiB'>2097152</hard_limit>
</memtune>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='x86_64' machine='pc'>hvm</type>
</os>
<devices>
<emulator>/usr/bin/qemu-system-x86_64</emulator>
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address domain='0x0000' bus='0x04' slot='0x02' function='0x0'/>
</source>
</hostdev>
</devices>
</domain>

23
tests/qemumemlockdata/qemumemlock-pc-hardlimit+locked+hostdev.xml Normal file
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@ -0,0 +1,23 @@
<domain type='kvm'>
<name>guest</name>
<memory unit='KiB'>1048576</memory>
<memtune>
<hard_limit unit='KiB'>2097152</hard_limit>
</memtune>
<memoryBacking>
<locked/>
</memoryBacking>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='x86_64' machine='pc'>hvm</type>
</os>
<devices>
<emulator>/usr/bin/qemu-system-x86_64</emulator>
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address domain='0x0000' bus='0x04' slot='0x02' function='0x0'/>
</source>
</hostdev>
</devices>
</domain>

17
tests/qemumemlockdata/qemumemlock-pc-hardlimit+locked.xml Normal file
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@ -0,0 +1,17 @@
<domain type='kvm'>
<name>guest</name>
<memory unit='KiB'>1048576</memory>
<memtune>
<hard_limit unit='KiB'>2097152</hard_limit>
</memtune>
<memoryBacking>
<locked/>
</memoryBacking>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='x86_64' machine='pc'>hvm</type>
</os>
<devices>
<emulator>/usr/bin/qemu-system-x86_64</emulator>
</devices>
</domain>

14
tests/qemumemlockdata/qemumemlock-pc-hardlimit.xml Normal file
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@ -0,0 +1,14 @@
<domain type='kvm'>
<name>guest</name>
<memory unit='KiB'>1048576</memory>
<memtune>
<hard_limit unit='KiB'>2097152</hard_limit>
</memtune>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='x86_64' machine='pc'>hvm</type>
</os>
<devices>
<emulator>/usr/bin/qemu-system-x86_64</emulator>
</devices>
</domain>

17
tests/qemumemlockdata/qemumemlock-pc-hostdev.xml Normal file
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@ -0,0 +1,17 @@
<domain type='kvm'>
<name>guest</name>
<memory unit='KiB'>1048576</memory>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='x86_64' machine='pc'>hvm</type>
</os>
<devices>
<emulator>/usr/bin/qemu-system-x86_64</emulator>
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address domain='0x0000' bus='0x04' slot='0x02' function='0x0'/>
</source>
</hostdev>
</devices>
</domain>

11
tests/qemumemlockdata/qemumemlock-pc-kvm.xml Normal file
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@ -0,0 +1,11 @@
<domain type='kvm'>
<name>guest</name>
<memory unit='KiB'>1048576</memory>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='x86_64' machine='pc'>hvm</type>
</os>
<devices>
<emulator>/usr/bin/qemu-system-x86_64</emulator>
</devices>
</domain>

20
tests/qemumemlockdata/qemumemlock-pc-locked+hostdev.xml Normal file
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@ -0,0 +1,20 @@
<domain type='kvm'>
<name>guest</name>
<memory unit='KiB'>1048576</memory>
<memoryBacking>
<locked/>
</memoryBacking>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='x86_64' machine='pc'>hvm</type>
</os>
<devices>
<emulator>/usr/bin/qemu-system-x86_64</emulator>
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address domain='0x0000' bus='0x04' slot='0x02' function='0x0'/>
</source>
</hostdev>
</devices>
</domain>

14
tests/qemumemlockdata/qemumemlock-pc-locked.xml Normal file
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@ -0,0 +1,14 @@
<domain type='kvm'>
<name>guest</name>
<memory unit='KiB'>1048576</memory>
<memoryBacking>
<locked/>
</memoryBacking>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='x86_64' machine='pc'>hvm</type>
</os>
<devices>
<emulator>/usr/bin/qemu-system-x86_64</emulator>
</devices>
</domain>

11
tests/qemumemlockdata/qemumemlock-pc-tcg.xml Normal file
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@ -0,0 +1,11 @@
<domain type='qemu'>
<name>guest</name>
<memory unit='KiB'>1048576</memory>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='x86_64' machine='pc'>hvm</type>
</os>
<devices>
<emulator>/usr/bin/qemu-system-x86_64</emulator>
</devices>
</domain>

20
tests/qemumemlockdata/qemumemlock-pseries-hardlimit+hostdev.xml Normal file
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@ -0,0 +1,20 @@
<domain type='kvm'>
<name>guest</name>
<memory unit='KiB'>1048576</memory>
<memtune>
<hard_limit unit='KiB'>2097152</hard_limit>
</memtune>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='ppc64' machine='pseries'>hvm</type>
</os>
<devices>
<emulator>/usr/bin/qemu-system-ppc64</emulator>
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address domain='0x0000' bus='0x04' slot='0x02' function='0x0'/>
</source>
</hostdev>
</devices>
</domain>

23
tests/qemumemlockdata/qemumemlock-pseries-hardlimit+locked+hostdev.xml Normal file
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@ -0,0 +1,23 @@
<domain type='kvm'>
<name>guest</name>
<memory unit='KiB'>1048576</memory>
<memtune>
<hard_limit unit='KiB'>2097152</hard_limit>
</memtune>
<memoryBacking>
<locked/>
</memoryBacking>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='ppc64' machine='pseries'>hvm</type>
</os>
<devices>
<emulator>/usr/bin/qemu-system-ppc64</emulator>
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address domain='0x0000' bus='0x04' slot='0x02' function='0x0'/>
</source>
</hostdev>
</devices>
</domain>

17
tests/qemumemlockdata/qemumemlock-pseries-hardlimit+locked.xml Normal file
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@ -0,0 +1,17 @@
<domain type='kvm'>
<name>guest</name>
<memory unit='KiB'>1048576</memory>
<memtune>
<hard_limit unit='KiB'>2097152</hard_limit>
</memtune>
<memoryBacking>
<locked/>
</memoryBacking>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='ppc64' machine='pseries'>hvm</type>
</os>
<devices>
<emulator>/usr/bin/qemu-system-ppc64</emulator>
</devices>
</domain>

14
tests/qemumemlockdata/qemumemlock-pseries-hardlimit.xml Normal file
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@ -0,0 +1,14 @@
<domain type='kvm'>
<name>guest</name>
<memory unit='KiB'>1048576</memory>
<memtune>
<hard_limit unit='KiB'>2097152</hard_limit>
</memtune>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='ppc64' machine='pseries'>hvm</type>
</os>
<devices>
<emulator>/usr/bin/qemu-system-ppc64</emulator>
</devices>
</domain>

17
tests/qemumemlockdata/qemumemlock-pseries-hostdev.xml Normal file
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@ -0,0 +1,17 @@
<domain type='kvm'>
<name>guest</name>
<memory unit='KiB'>1048576</memory>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='ppc64' machine='pseries'>hvm</type>
</os>
<devices>
<emulator>/usr/bin/qemu-system-ppc64</emulator>
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address domain='0x0000' bus='0x04' slot='0x02' function='0x0'/>
</source>
</hostdev>
</devices>
</domain>

11
tests/qemumemlockdata/qemumemlock-pseries-kvm.xml Normal file
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@ -0,0 +1,11 @@
<domain type='kvm'>
<name>guest</name>
<memory unit='KiB'>1048576</memory>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='ppc64' machine='pseries'>hvm</type>
</os>
<devices>
<emulator>/usr/bin/qemu-system-ppc64</emulator>
</devices>
</domain>

20
tests/qemumemlockdata/qemumemlock-pseries-locked+hostdev.xml Normal file
View File

@ -0,0 +1,20 @@
<domain type='kvm'>
<name>guest</name>
<memory unit='KiB'>1048576</memory>
<memoryBacking>
<locked/>
</memoryBacking>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='ppc64' machine='pseries'>hvm</type>
</os>
<devices>
<emulator>/usr/bin/qemu-system-ppc64</emulator>
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address domain='0x0000' bus='0x04' slot='0x02' function='0x0'/>
</source>
</hostdev>
</devices>
</domain>

14
tests/qemumemlockdata/qemumemlock-pseries-locked.xml Normal file
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@ -0,0 +1,14 @@
<domain type='kvm'>
<name>guest</name>
<memory unit='KiB'>1048576</memory>
<memoryBacking>
<locked/>
</memoryBacking>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='ppc64' machine='pseries'>hvm</type>
</os>
<devices>
<emulator>/usr/bin/qemu-system-ppc64</emulator>
</devices>
</domain>

11
tests/qemumemlockdata/qemumemlock-pseries-tcg.xml Normal file
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@ -0,0 +1,11 @@
<domain type='qemu'>
<name>guest</name>
<memory unit='KiB'>1048576</memory>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='ppc64' machine='pseries'>hvm</type>
</os>
<devices>
<emulator>/usr/bin/qemu-system-ppc64</emulator>
</devices>
</domain>

142
tests/qemumemlocktest.c Normal file
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@ -0,0 +1,142 @@
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.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 const char *abs_top_srcdir;
static virQEMUDriver driver;
struct testInfo {
const char *name;
unsigned long long memlock;
};
static int
testCompareMemLock(const void *data)
{
const struct testInfo *info = data;
virDomainDefPtr def = NULL;
char *xml = NULL;
int ret = -1;
if (virAsprintf(&xml, "%s/qemumemlockdata/qemumemlock-%s.xml",
abs_srcdir, info->name) < 0)
goto cleanup;
if (!(def = virDomainDefParseFile(xml, driver.caps, driver.xmlopt, NULL,
VIR_DOMAIN_DEF_PARSE_INACTIVE))) {
goto cleanup;
}
ret = virTestCompareToULL(info->memlock, qemuDomainGetMemLockLimitBytes(def));
cleanup:
virObjectUnref(def);
VIR_FREE(xml);
return ret;
}
static int
mymain(void)
{
int ret = 0;
abs_top_srcdir = getenv("abs_top_srcdir");
if (!abs_top_srcdir)
abs_top_srcdir = abs_srcdir "/..";
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.caps, VIR_ARCH_X86_64);
DO_TEST("pc-kvm", 0);
DO_TEST("pc-tcg", 0);
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.caps, VIR_ARCH_PPC64);
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", 2168455168);
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);
qemuTestDriverFree(&driver);
return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
}
VIRT_TEST_MAIN(mymain)
#else
int
main(void)
{
return EXIT_AM_SKIP;
}
#endif /* WITH_QEMU */