[libvirt] [v7 4/6] add unit test for hostdev common library
Chunyan Liu
cyliu at suse.com
Fri Dec 13 08:47:01 UTC 2013
Add unit test for hostdev common library. Current tests are based on virpcimock,
limited to pci related APIs only.
Signed-off-by: Chunyan Liu <cyliu at suse.com>
---
tests/Makefile.am | 5 +
tests/virhostdevtest.c | 481 ++++++++++++++++++++++++++++++++++++++++++++++++
tests/virpcimock.c | 45 +++++-
3 files changed, 530 insertions(+), 1 deletions(-)
create mode 100644 tests/virhostdevtest.c
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 568b7a0..3e66d8c 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -141,6 +141,7 @@ test_programs = virshtest sockettest \
virportallocatortest \
sysinfotest \
virstoragetest \
+ virhostdevtest \
$(NULL)
if WITH_REMOTE
@@ -754,6 +755,10 @@ vircgroupmock_la_CFLAGS = $(AM_CFLAGS)
vircgroupmock_la_LDFLAGS = -module -avoid-version \
-rpath /evil/libtool/hack/to/force/shared/lib/creation
+virhostdevtest_SOURCES = \
+ virhostdevtest.c testutils.h testutils.c
+virhostdevtest_LDADD = $(LDADDS)
+
virpcitest_SOURCES = \
virpcitest.c testutils.h testutils.c
virpcitest_LDADD = $(LDADDS)
diff --git a/tests/virhostdevtest.c b/tests/virhostdevtest.c
new file mode 100644
index 0000000..5b45548
--- /dev/null
+++ b/tests/virhostdevtest.c
@@ -0,0 +1,481 @@
+/*
+ * Copyright (C) 2013 SUSE LINUX Products GmbH, Nuernberg, Germany.
+ *
+ * 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/>.
+ *
+ * Author: Chunyan Liu <cyliu at suse.com>
+ */
+
+#include <config.h>
+
+#include "testutils.h"
+
+#ifdef __linux__
+
+# include <stdlib.h>
+# include <stdio.h>
+# include <sys/types.h>
+# include <sys/stat.h>
+# include <fcntl.h>
+# include <virhostdev.h>
+
+# define VIR_FROM_THIS VIR_FROM_NONE
+
+# define CHECK_LIST_COUNT(list, cnt) \
+ if ((count = virPCIDeviceListCount(list)) != cnt) { \
+ virReportError(VIR_ERR_INTERNAL_ERROR, \
+ "Unexpected count of items in " #list ": %d, " \
+ "expecting %zu", count, (size_t) cnt); \
+ goto cleanup; \
+ }
+
+#ifdef DEBUG
+#define DPRINTF(fmt, ...) printf(fmt, ## __VA_ARGS__)
+#else
+#define DPRINTF(fmt, ...) do { } while (0)
+#endif
+
+#define TEST_STATE_DIR abs_builddir "/hostdevmgr"
+static const char *drv_name = "test_driver";
+static const char *dom_name = "test_domain";
+static const unsigned char *uuid =
+ (unsigned char *)("f92360b0-2541-8791-fb32-d1f838811541");
+static int nhostdevs = 3;
+static virDomainHostdevDefPtr hostdevs[] = {NULL, NULL, NULL};
+static virPCIDevicePtr dev[] = {NULL, NULL, NULL};
+static virHostdevManagerPtr mgr = NULL;
+
+static void
+myCleanup(void)
+{
+ size_t i;
+ for (i = 0; i < nhostdevs; i++) {
+ virPCIDeviceFree(dev[i]);
+ virDomainHostdevDefFree(hostdevs[i]);
+ }
+
+ if (mgr) {
+ virObjectUnref(mgr->activePciHostdevs);
+ virObjectUnref(mgr->inactivePciHostdevs);
+ virObjectUnref(mgr->activeUsbHostdevs);
+ VIR_FREE(mgr->stateDir);
+ VIR_FREE(mgr);
+ }
+}
+
+static int
+myInit(void)
+{
+ size_t i;
+
+ for (i = 0; i < nhostdevs; i++) {
+ virDomainHostdevSubsys subsys;
+ hostdevs[i] = virDomainHostdevDefAlloc();
+ if (!hostdevs[i])
+ goto cleanup;
+ hostdevs[i]->mode = VIR_DOMAIN_HOSTDEV_MODE_SUBSYS;
+ subsys.type = VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI;
+ subsys.u.pci.addr.domain = 0;
+ subsys.u.pci.addr.bus = 0;
+ subsys.u.pci.addr.slot = i + 1;
+ subsys.u.pci.addr.function = 0;
+ subsys.u.pci.backend = VIR_DOMAIN_HOSTDEV_PCI_BACKEND_KVM;
+ hostdevs[i]->source.subsys = subsys;
+ }
+
+ for (i = 0; i < nhostdevs; i++) {
+ if (!(dev[i] = virPCIDeviceNew(0, 0, i + 1, 0)) ||
+ virPCIDeviceSetStubDriver(dev[i], "pci-stub") < 0)
+ goto cleanup;
+ }
+
+ if (VIR_ALLOC(mgr) < 0)
+ goto cleanup;
+ if ((mgr->activePciHostdevs = virPCIDeviceListNew()) == NULL)
+ goto cleanup;
+ if ((mgr->activeUsbHostdevs = virUSBDeviceListNew()) == NULL)
+ goto cleanup;
+ if ((mgr->inactivePciHostdevs = virPCIDeviceListNew()) == NULL)
+ goto cleanup;
+ if ((mgr->activeScsiHostdevs = virSCSIDeviceListNew()) == NULL)
+ goto cleanup;
+ if (VIR_STRDUP(mgr->stateDir, TEST_STATE_DIR) < 0)
+ goto cleanup;
+ if (virFileMakePath(mgr->stateDir) < 0) {
+ goto cleanup;
+ }
+
+ return 0;
+
+cleanup:
+ myCleanup();
+ return -1;
+}
+
+static int
+testVirHostdevPreparePciHostdevs_unmanaged(const void *oaque ATTRIBUTE_UNUSED)
+{
+ int ret = -1;
+ size_t i;
+ int count, count1, count2;
+
+ for (i = 0; i < nhostdevs; i++) {
+ hostdevs[i]->managed = false;
+ }
+
+ /* Test invalid args */
+ DPRINTF("Test hostdev mgr=NULL\n");
+ if (!virHostdevPreparePciHostdevs(NULL, drv_name, dom_name, uuid,
+ hostdevs, nhostdevs, 0))
+ goto cleanup;
+
+ count1 = virPCIDeviceListCount(mgr->activePciHostdevs);
+ count2 = virPCIDeviceListCount(mgr->inactivePciHostdevs);
+
+ /* Test normal functionality */
+ DPRINTF("Test 0 hostdevs\n");
+ if (virHostdevPreparePciHostdevs(mgr, drv_name, dom_name, uuid,
+ NULL, 0, 0) < 0)
+ goto cleanup;
+ CHECK_LIST_COUNT(mgr->activePciHostdevs, count1);
+
+ /* Test unmanaged hostdevs */
+ DPRINTF("Test >=1 unmanaged hostdevs\n");
+ if (virHostdevPreparePciHostdevs(mgr, drv_name, dom_name, uuid,
+ hostdevs, nhostdevs, 0) < 0)
+ goto cleanup;
+ CHECK_LIST_COUNT(mgr->activePciHostdevs, count1 + 3);
+ CHECK_LIST_COUNT(mgr->inactivePciHostdevs, count2 - 3);
+
+ /* Test conflict */
+ count1 = virPCIDeviceListCount(mgr->activePciHostdevs);
+ count2 = virPCIDeviceListCount(mgr->inactivePciHostdevs);
+ DPRINTF("Test: prepare same hostdevs for same driver/domain again\n");
+ if (!virHostdevPreparePciHostdevs(mgr, drv_name, dom_name, uuid,
+ &hostdevs[0], 1, 0))
+ goto cleanup;
+ CHECK_LIST_COUNT(mgr->activePciHostdevs, count1);
+ CHECK_LIST_COUNT(mgr->inactivePciHostdevs, count2);
+
+ DPRINTF("Test: prepare same hostdevs for same driver, diff domain again\n");
+ if (!virHostdevPreparePciHostdevs(mgr, drv_name, "test_domain1", uuid,
+ &hostdevs[1], 1, 0))
+ goto cleanup;
+ CHECK_LIST_COUNT(mgr->activePciHostdevs, count1);
+ CHECK_LIST_COUNT(mgr->inactivePciHostdevs, count2);
+
+ DPRINTF("Test: prepare same hostdevs for diff driver/domain again\n");
+ if (!virHostdevPreparePciHostdevs(mgr, "test_driver1", dom_name, uuid,
+ &hostdevs[2], 1, 0))
+ goto cleanup;
+ CHECK_LIST_COUNT(mgr->activePciHostdevs, count1);
+ CHECK_LIST_COUNT(mgr->inactivePciHostdevs, count2);
+
+ ret = 0;
+
+cleanup:
+ return ret;
+
+}
+
+static int
+testVirHostdevReAttachPciHostdevs_unmanaged(const void *oaque ATTRIBUTE_UNUSED)
+{
+ int ret = -1;
+ size_t i;
+ int count, count1, count2;
+
+ for (i = 0; i < nhostdevs; i++) {
+ if (hostdevs[i]->managed != false) {
+ DPRINTF("invalid test\n");
+ return -1;
+ }
+ }
+
+ DPRINTF("Test hostdev mgr=NULL\n");
+ virHostdevReAttachPciHostdevs(NULL, drv_name, dom_name,
+ hostdevs, nhostdevs);
+
+ count1 = virPCIDeviceListCount(mgr->activePciHostdevs);
+ count2 = virPCIDeviceListCount(mgr->inactivePciHostdevs);
+
+ DPRINTF("Test 0 hostdevs\n");
+ virHostdevReAttachPciHostdevs(mgr, drv_name, dom_name, NULL, 0);
+ CHECK_LIST_COUNT(mgr->activePciHostdevs, count1);
+
+ DPRINTF("Test >=1 unmanaged hostdevs\n");
+ virHostdevReAttachPciHostdevs(mgr, drv_name, dom_name, hostdevs, nhostdevs);
+ CHECK_LIST_COUNT(mgr->activePciHostdevs, count1 - 3);
+ CHECK_LIST_COUNT(mgr->inactivePciHostdevs, count2 + 3);
+
+ ret = 0;
+
+cleanup:
+ return ret;
+
+}
+
+static int
+testVirHostdevPreparePciHostdevs_managed(const void *oaque ATTRIBUTE_UNUSED)
+{
+ int ret = -1;
+ size_t i;
+ int count, count1;
+
+ for (i = 0; i < nhostdevs; i++) {
+ hostdevs[i]->managed = true;
+ }
+
+ count1 = virPCIDeviceListCount(mgr->activePciHostdevs);
+
+ /* Test normal functionality */
+ DPRINTF("Test >=1 hostdevs\n");
+ if (virHostdevPreparePciHostdevs(mgr, drv_name, dom_name, uuid,
+ hostdevs, nhostdevs, 0) < 0)
+ goto cleanup;
+ CHECK_LIST_COUNT(mgr->activePciHostdevs, count1 + 3);
+
+ /* Test conflict */
+ count1 = virPCIDeviceListCount(mgr->activePciHostdevs);
+ DPRINTF("Test: prepare same hostdevs for same driver/domain again\n");
+ if (!virHostdevPreparePciHostdevs(mgr, drv_name, dom_name, uuid,
+ &hostdevs[0], 1, 0))
+ goto cleanup;
+ CHECK_LIST_COUNT(mgr->activePciHostdevs, count1);
+
+ DPRINTF("Test: prepare same hostdevs for same driver, diff domain again\n");
+ if (!virHostdevPreparePciHostdevs(mgr, drv_name, "test_domain1", uuid,
+ &hostdevs[1], 1, 0))
+ goto cleanup;
+ CHECK_LIST_COUNT(mgr->activePciHostdevs, count1);
+
+ DPRINTF("Test: prepare same hostdevs for diff driver/domain again\n");
+ if (!virHostdevPreparePciHostdevs(mgr, "test_driver1", dom_name, uuid,
+ &hostdevs[2], 1, 0))
+ goto cleanup;
+ CHECK_LIST_COUNT(mgr->activePciHostdevs, count1);
+
+ ret = 0;
+
+cleanup:
+ return ret;
+
+}
+
+static int
+testVirHostdevReAttachPciHostdevs_managed(const void *oaque ATTRIBUTE_UNUSED)
+{
+ int ret = -1;
+ size_t i;
+ int count, count1;
+
+ for (i = 0; i < nhostdevs; i++) {
+ if (hostdevs[i]->managed != true) {
+ DPRINTF("invalid test\n");
+ return -1;
+ }
+ }
+
+ DPRINTF("Test hostdev mgr=NULL\n");
+ virHostdevReAttachPciHostdevs(NULL, drv_name, dom_name,
+ hostdevs, nhostdevs);
+
+ count1 = virPCIDeviceListCount(mgr->activePciHostdevs);
+
+ DPRINTF("Test 0 hostdevs\n");
+ virHostdevReAttachPciHostdevs(mgr, drv_name, dom_name, NULL, 0);
+ CHECK_LIST_COUNT(mgr->activePciHostdevs, count1);
+
+ DPRINTF("Test >=1 hostdevs\n");
+ virHostdevReAttachPciHostdevs(mgr, drv_name, dom_name, hostdevs, nhostdevs);
+ CHECK_LIST_COUNT(mgr->activePciHostdevs, count1 - 3);
+
+ ret = 0;
+
+cleanup:
+ return ret;
+
+}
+
+static int
+testVirHostdevDetachPciNodeDevice(const void *oaque ATTRIBUTE_UNUSED)
+{
+ int ret = -1;
+ size_t i;
+ int count, count1;
+
+ if (!virHostdevPciNodeDeviceDetach(NULL, dev[0]))
+ goto cleanup;
+
+ if (!virHostdevPciNodeDeviceDetach(mgr, NULL))
+ goto cleanup;
+
+ for (i = 0; i < nhostdevs; i++) {
+ count1 = virPCIDeviceListCount(mgr->inactivePciHostdevs);
+ if (virHostdevPciNodeDeviceDetach(mgr, dev[i]) < 0)
+ goto cleanup;
+ CHECK_LIST_COUNT(mgr->inactivePciHostdevs, count1 + 1);
+ }
+
+ ret = 0;
+
+cleanup:
+ return ret;
+}
+static int
+testVirHostdevResetPciNodeDevice(const void *oaque ATTRIBUTE_UNUSED)
+{
+ int ret = -1;
+ size_t i;
+
+ if (!virHostdevPciNodeDeviceReset(NULL, dev[0]))
+ goto cleanup;
+
+ if (!virHostdevPciNodeDeviceReAttach(mgr, NULL))
+ goto cleanup;
+
+ for (i = 0; i < nhostdevs; i++) {
+ if (virHostdevPciNodeDeviceReset(mgr, dev[i]) < 0)
+ goto cleanup;
+ }
+
+ ret = 0;
+
+cleanup:
+ return ret;
+
+}
+
+static int
+testVirHostdevReAttachPciNodeDevice(const void *oaque ATTRIBUTE_UNUSED)
+{
+ int ret = -1;
+ size_t i;
+ int count, count1;
+
+ if (!virHostdevPciNodeDeviceReAttach(NULL, dev[0]))
+ goto cleanup;
+
+ if (!virHostdevPciNodeDeviceReAttach(mgr, NULL))
+ goto cleanup;
+
+ for (i = 0; i < nhostdevs; i++) {
+ count1 = virPCIDeviceListCount(mgr->inactivePciHostdevs);
+ if (virHostdevPciNodeDeviceReAttach(mgr, dev[i]) < 0)
+ goto cleanup;
+ CHECK_LIST_COUNT(mgr->inactivePciHostdevs, count1 - 1);
+ }
+
+ ret = 0;
+
+cleanup:
+ return ret;
+
+}
+
+static int
+testVirHostdevUpdateActivePciHostdevs(const void *oaque ATTRIBUTE_UNUSED)
+{
+ int ret = -1;
+ int count, count1;
+
+ DPRINTF("Test hostdev mgr=NULL\n");
+ if (!virHostdevUpdateActivePciHostdevs(NULL, hostdevs, nhostdevs,
+ drv_name, dom_name))
+ goto cleanup;
+
+ count1 = virPCIDeviceListCount(mgr->activePciHostdevs);
+
+ DPRINTF("Test 0 hostdevs\n");
+ if (virHostdevUpdateActivePciHostdevs(mgr, NULL, 0,
+ drv_name, dom_name) < 0)
+ goto cleanup;
+ CHECK_LIST_COUNT(mgr->activePciHostdevs, count1);
+
+ DPRINTF("Test >=1 hostdevs\n");
+ if (virHostdevUpdateActivePciHostdevs(mgr, hostdevs, nhostdevs,
+ drv_name, dom_name) < 0)
+ goto cleanup;
+ CHECK_LIST_COUNT(mgr->activePciHostdevs, count1 + 3);
+
+ ret = 0;
+
+cleanup:
+ return ret;
+}
+
+# define FAKESYSFSDIRTEMPLATE abs_builddir "/fakesysfsdir-XXXXXX"
+
+static int
+mymain(void)
+{
+ int ret = 0;
+ char *fakesysfsdir;
+
+ if (VIR_STRDUP_QUIET(fakesysfsdir, FAKESYSFSDIRTEMPLATE) < 0) {
+ fprintf(stderr, "Out of memory\n");
+ abort();
+ }
+
+ if (!mkdtemp(fakesysfsdir)) {
+ fprintf(stderr, "Cannot create fakesysfsdir");
+ abort();
+ }
+
+ setenv("LIBVIRT_FAKE_SYSFS_DIR", fakesysfsdir, 1);
+
+# define DO_TEST(fnc) \
+ do { \
+ DPRINTF("\nTesting: %s", #fnc); \
+ if (virtTestRun(#fnc, fnc, NULL) < 0) \
+ ret = -1; \
+ } while (0)
+
+ if (myInit() < 0)
+ fprintf(stderr, "Init data structures failed.");
+
+ DO_TEST(testVirHostdevDetachPciNodeDevice);
+ if (virHostdevHostSupportsPassthroughKVM()) {
+ /* following tests would check KVM support */
+ DO_TEST(testVirHostdevPreparePciHostdevs_unmanaged);
+ DO_TEST(testVirHostdevReAttachPciHostdevs_unmanaged);
+ }
+ DO_TEST(testVirHostdevResetPciNodeDevice);
+ DO_TEST(testVirHostdevReAttachPciNodeDevice);
+ if (virHostdevHostSupportsPassthroughKVM()) {
+ /* following tests would check KVM support */
+ DO_TEST(testVirHostdevPreparePciHostdevs_managed);
+ DO_TEST(testVirHostdevReAttachPciHostdevs_managed);
+ }
+ DO_TEST(testVirHostdevUpdateActivePciHostdevs);
+
+ myCleanup();
+
+ if (getenv("LIBVIRT_SKIP_CLEANUP") == NULL)
+ virFileDeleteTree(fakesysfsdir);
+
+ VIR_FREE(fakesysfsdir);
+
+ return ret==0 ? EXIT_SUCCESS : EXIT_FAILURE;
+}
+
+VIRT_TEST_MAIN_PRELOAD(mymain, abs_builddir "/.libs/virpcimock.so")
+#else
+int
+main(void)
+{
+ return EXIT_AM_SKIP;
+}
+#endif
diff --git a/tests/virpcimock.c b/tests/virpcimock.c
index a5cef46..147eec0 100644
--- a/tests/virpcimock.c
+++ b/tests/virpcimock.c
@@ -29,6 +29,8 @@
# include <fcntl.h>
# include <sys/stat.h>
# include <stdarg.h>
+# include <sys/types.h>
+# include <dirent.h>
# include "viralloc.h"
# include "virstring.h"
# include "virfile.h"
@@ -42,6 +44,7 @@ static int (*real__xstat)(int ver, const char *path, struct stat *sb);
static char *(*realcanonicalize_file_name)(const char *path);
static int (*realopen)(const char *path, int flags, ...);
static int (*realclose)(int fd);
+static DIR *(*realopendir)(const char *name);
/* Don't make static, since it causes problems with clang
* when passed as an arg to virAsprintf()
@@ -146,7 +149,7 @@ static int pci_driver_handle_bind(const char *path);
static int pci_driver_handle_unbind(const char *path);
static int pci_driver_handle_new_id(const char *path);
static int pci_driver_handle_remove_id(const char *path);
-
+static int pci_handle_drivers_probe(const char *path);
/*
* Helper functions
@@ -578,6 +581,8 @@ pci_driver_handle_change(int fd ATTRIBUTE_UNUSED, const char *path)
} else if (STREQ(file, "remove_id")) {
/* handle write to remove_id */
ret = pci_driver_handle_remove_id(path);
+ } else if (STREQ(file, "drivers_probe")) {
+ ret = pci_handle_drivers_probe(path);
} else {
/* yet not handled write */
ABORT("Not handled write to: %s", path);
@@ -717,6 +722,16 @@ cleanup:
return ret;
}
+static int
+pci_handle_drivers_probe(const char *path)
+{
+ struct pciDevice *dev = pci_device_find_by_content(path);
+
+ if (pci_device_autobind(dev) < 0)
+ ABORT("Unable to do driver reprobe.");
+
+ return 0;
+}
/*
* Functions to load the symbols and init the environment
@@ -746,12 +761,16 @@ init_syms(void)
LOAD_SYM_ALT(stat, __xstat);
LOAD_SYM(canonicalize_file_name);
LOAD_SYM(open);
+ LOAD_SYM(opendir);
LOAD_SYM(close);
}
static void
init_env(void)
{
+ int fd = -1;
+ char *filepath;
+
if (fakesysfsdir)
return;
@@ -776,6 +795,12 @@ init_env(void)
MAKE_PCI_DEVICE("0000:00:01.0", 0x8086, 0x0044);
MAKE_PCI_DEVICE("0000:00:02.0", 0x8086, 0x0046);
MAKE_PCI_DEVICE("0000:00:03.0", 0x8086, 0x0048);
+
+ /* make file drivers_probe */
+ if (virAsprintfQuiet(&filepath, "%s/drivers_probe", fakesysfsdir) < 0)
+ ABORT_OOM();
+ if ((fd = realopen(filepath, O_CREAT|O_WRONLY, 0200)) < 0)
+ ABORT("Unable to create: %s", filepath);
}
@@ -899,6 +924,24 @@ canonicalize_file_name(const char *path)
return ret;
}
+DIR *
+opendir(const char *path)
+{
+ DIR *dir = NULL;
+ char *newpath = NULL;
+
+ init_syms();
+
+ if (STRPREFIX(path, PCI_SYSFS_PREFIX) &&
+ getrealpath(&newpath, path) < 0)
+ return -1;
+
+ dir = realopendir(newpath ? newpath : path);
+ VIR_FREE(newpath);
+ return dir;
+}
+
+
int
open(const char *path, int flags, ...)
{
--
1.6.0.2
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