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qemu: Implement virConnectGetDomainCapabilities

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So far only information on disks and host devices are exposed in the
capabilities XML. Well, at least something. Even a new test is
introduced. The qemu capabilities are stolen from already existing
qemucapabilities test. There's one tricky point though. Functions that
checks host's KVM and VFIO capabilities, are impossible to mock
currently. So in the test, we are setting the capabilities by hand.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
Michal Privoznik
2014-06-25 18:39:29 +02:00
parent cb01d2b5b1
commit 94e3f23e8a
7 changed files with 291 additions and 0 deletions
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5
tests/Makefile.am
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@@ -835,6 +835,11 @@ domaincapstest_SOURCES = \
domaincapstest.c testutils.h testutils.c
domaincapstest_LDADD = $(LDADDS)
if WITH_QEMU
domaincapstest_SOURCES += testutilsqemu.c testutilsqemu.h
domaincapstest_LDADD += $(qemu_LDADDS)
endif WITH_QEMU
if WITH_LIBVIRTD
libvirtdconftest_SOURCES = \
libvirtdconftest.c testutils.h testutils.c \

45
tests/domaincapsschemadata/domaincaps-qemu_1.6.50-1.xml Normal file
View File

@@ -0,0 +1,45 @@
<domainCapabilities>
<path>/usr/bin/qemu-system-x86_64</path>
<domain>kvm</domain>
<machine>pc-1.2</machine>
<arch>x86_64</arch>
<devices>
<disk supported='yes'>
<enum name='diskDevice'>
<value>disk</value>
<value>cdrom</value>
<value>floppy</value>
<value>lun</value>
</enum>
<enum name='bus'>
<value>ide</value>
<value>fdc</value>
<value>scsi</value>
<value>virtio</value>
<value>usb</value>
</enum>
</disk>
<hostdev supported='yes'>
<enum name='mode'>
<value>subsystem</value>
</enum>
<enum name='startupPolicy'>
<value>default</value>
<value>mandatory</value>
<value>requisite</value>
<value>optional</value>
</enum>
<enum name='subsysType'>
<value>usb</value>
<value>pci</value>
<value>scsi</value>
</enum>
<enum name='capsType'/>
<enum name='pciBackend'>
<value>default</value>
<value>kvm</value>
<value>vfio</value>
</enum>
</hostdev>
</devices>
</domainCapabilities>

45
tests/domaincapstest.c
View File

@@ -54,6 +54,30 @@ fillAll(virDomainCapsPtr domCaps,
SET_ALL_BITS(hostdev->pciBackend);
}
#ifdef WITH_QEMU
# include "testutilsqemu.h"
static void
fillQemuCaps(virDomainCapsPtr domCaps,
void *opaque)
{
virQEMUCapsPtr qemuCaps = (virQEMUCapsPtr) opaque;
virQEMUCapsFillDomainCaps(domCaps, qemuCaps);
/* The function above tries to query host's KVM & VFIO capabilities by
* calling qemuHostdevHostSupportsPassthroughLegacy() and
* qemuHostdevHostSupportsPassthroughVFIO() which, however, can't be
* successfully mocked as they are not exposed as internal APIs. Therefore,
* instead of mocking set the expected values here by hand. */
VIR_DOMAIN_CAPS_ENUM_SET(domCaps->hostdev.pciBackend,
VIR_DOMAIN_HOSTDEV_PCI_BACKEND_DEFAULT,
VIR_DOMAIN_HOSTDEV_PCI_BACKEND_KVM,
VIR_DOMAIN_HOSTDEV_PCI_BACKEND_VFIO);
}
#endif /* WITH_QEMU */
static virDomainCapsPtr
buildVirDomainCaps(const char *emulatorbin,
const char *machine,
@@ -143,6 +167,27 @@ mymain(void)
DO_TEST("full", "/bin/emulatorbin", "my-machine-type",
VIR_ARCH_X86_64, VIR_DOMAIN_VIRT_KVM, .fillFunc = fillAll);
#ifdef WITH_QEMU
# define DO_TEST_QEMU(Filename, QemuCapsFile, Emulatorbin, Machine, Arch, Type, ...) \
do { \
const char *capsPath = abs_srcdir "/qemucapabilitiesdata/" QemuCapsFile ".caps"; \
virQEMUCapsPtr qemuCaps = qemuTestParseCapabilities(capsPath); \
struct test_virDomainCapsFormatData data = {.filename = Filename, \
.emulatorbin = Emulatorbin, .machine = Machine, .arch = Arch, \
.type = Type, .fillFunc = fillQemuCaps, .opaque = qemuCaps}; \
if (!qemuCaps) { \
fprintf(stderr, "Unable to build qemu caps from %s\n", capsPath); \
ret = -1; \
} else if (virtTestRun(Filename, test_virDomainCapsFormat, &data) < 0) \
ret = -1; \
} while (0)
DO_TEST_QEMU("qemu_1.6.50-1", "caps_1.6.50-1", "/usr/bin/qemu-system-x86_64",
"pc-1.2", VIR_ARCH_X86_64, VIR_DOMAIN_VIRT_KVM);
#endif /* WITH_QEMU */
return ret;
}