libvirt/tests/qemucapabilitiestest.c
Jiri Denemark 25ba9c31f5 qemu: Enable KVM when probing capabilities
CPU related capabilities may differ depending on accelerator used when
probing. Let's use KVM if available when probing QEMU and fall back to
TCG. The created capabilities already contain all we need to distinguish
whether KVM or TCG was used:

    - KVM was used when probing capabilities:
        QEMU_CAPS_KVM is set
        QEMU_CAPS_ENABLE_KVM is not set

    - TCG was used and QEMU supports KVM, but it failed (e.g., missing
      kernel module or wrong /dev/kvm permissions)
        QEMU_CAPS_KVM is not set
        QEMU_CAPS_ENABLE_KVM is set

    - KVM was not used and QEMU does not support it
        QEMU_CAPS_KVM is not set
        QEMU_CAPS_ENABLE_KVM is not set

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2016-11-25 20:34:26 +01:00

186 lines
5.3 KiB
C

/*
* Copyright (C) 2011-2013 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*
*/
#include <config.h>
#include "testutils.h"
#include "testutilsqemu.h"
#include "qemumonitortestutils.h"
#define __QEMU_CAPSRIV_H_ALLOW__
#include "qemu/qemu_capspriv.h"
#define VIR_FROM_THIS VIR_FROM_NONE
typedef struct _testQemuData testQemuData;
typedef testQemuData *testQemuDataPtr;
struct _testQemuData {
virDomainXMLOptionPtr xmlopt;
const char *archName;
const char *base;
};
static int
testQemuCaps(const void *opaque)
{
int ret = -1;
const testQemuData *data = opaque;
char *repliesFile = NULL;
char *capsFile = NULL;
qemuMonitorTestPtr mon = NULL;
virQEMUCapsPtr capsActual = NULL;
char *actual = NULL;
if (virAsprintf(&repliesFile, "%s/qemucapabilitiesdata/%s.%s.replies",
abs_srcdir, data->base, data->archName) < 0 ||
virAsprintf(&capsFile, "%s/qemucapabilitiesdata/%s.%s.xml",
abs_srcdir, data->base, data->archName) < 0)
goto cleanup;
if (!(mon = qemuMonitorTestNewFromFile(repliesFile, data->xmlopt, false)))
goto cleanup;
if (!(capsActual = virQEMUCapsNew()) ||
virQEMUCapsInitQMPMonitor(capsActual,
qemuMonitorTestGetMonitor(mon)) < 0)
goto cleanup;
if (virQEMUCapsGet(capsActual, QEMU_CAPS_KVM) &&
virQEMUCapsInitQMPMonitorTCG(capsActual,
qemuMonitorTestGetMonitor(mon)) < 0)
goto cleanup;
if (!(actual = virQEMUCapsFormatCache(capsActual, 0, 0)))
goto cleanup;
if (virTestCompareToFile(actual, capsFile) < 0)
goto cleanup;
ret = 0;
cleanup:
VIR_FREE(repliesFile);
VIR_FREE(capsFile);
VIR_FREE(actual);
qemuMonitorTestFree(mon);
virObjectUnref(capsActual);
return ret;
}
static int
testQemuCapsCopy(const void *opaque)
{
int ret = -1;
const testQemuData *data = opaque;
char *capsFile = NULL;
virCapsPtr caps = NULL;
virQEMUCapsPtr orig = NULL;
virQEMUCapsPtr copy = NULL;
char *actual = NULL;
if (virAsprintf(&capsFile, "%s/qemucapabilitiesdata/%s.%s.xml",
abs_srcdir, data->base, data->archName) < 0)
goto cleanup;
if (!(caps = virCapabilitiesNew(virArchFromString(data->archName),
false, false)))
goto cleanup;
if (!(orig = qemuTestParseCapabilities(caps, capsFile)))
goto cleanup;
if (!(copy = virQEMUCapsNewCopy(orig)))
goto cleanup;
if (!(actual = virQEMUCapsFormatCache(copy, 0, 0)))
goto cleanup;
if (virTestCompareToFile(actual, capsFile) < 0)
goto cleanup;
ret = 0;
cleanup:
VIR_FREE(capsFile);
virObjectUnref(caps);
virObjectUnref(orig);
virObjectUnref(copy);
VIR_FREE(actual);
return ret;
}
static int
mymain(void)
{
int ret = 0;
virQEMUDriver driver;
testQemuData data;
#if !WITH_YAJL
fputs("libvirt not compiled with yajl, skipping this test\n", stderr);
return EXIT_AM_SKIP;
#endif
if (virThreadInitialize() < 0 ||
qemuTestDriverInit(&driver) < 0)
return EXIT_FAILURE;
virEventRegisterDefaultImpl();
data.xmlopt = driver.xmlopt;
#define DO_TEST(arch, name) \
do { \
data.archName = arch; \
data.base = name; \
if (virTestRun(name "(" arch ")", testQemuCaps, &data) < 0) \
ret = -1; \
if (virTestRun("copy " name "(" arch ")", \
testQemuCapsCopy, &data) < 0) \
ret = -1; \
} while (0)
DO_TEST("x86_64", "caps_1.2.2");
DO_TEST("x86_64", "caps_1.3.1");
DO_TEST("x86_64", "caps_1.4.2");
DO_TEST("x86_64", "caps_1.5.3");
DO_TEST("x86_64", "caps_1.6.0");
DO_TEST("x86_64", "caps_1.7.0");
DO_TEST("x86_64", "caps_2.1.1");
DO_TEST("x86_64", "caps_2.4.0");
DO_TEST("x86_64", "caps_2.5.0");
DO_TEST("x86_64", "caps_2.6.0");
DO_TEST("x86_64", "caps_2.7.0");
DO_TEST("aarch64", "caps_2.6.0-gicv2");
DO_TEST("aarch64", "caps_2.6.0-gicv3");
DO_TEST("ppc64le", "caps_2.6.0");
/*
* Run "tests/qemucapsprobe /path/to/qemu/binary >foo.replies"
* to generate updated or new *.replies data files.
*/
qemuTestDriverFree(&driver);
return (ret == 0) ? EXIT_SUCCESS : EXIT_FAILURE;
}
VIRT_TEST_MAIN(mymain)