[libvirt] [PATCH v3 07/26] tests: Mock IOMMU groups
Andrea Bolognani
abologna at redhat.com
Fri Jun 23 15:03:09 UTC 2017
Later on we're going to need access to information about IOMMU
groups for host devices. Implement the support in virpcimock,
and start using that mock library in a few QEMU test cases.
Signed-off-by: Andrea Bolognani <abologna at redhat.com>
Reviewed-by: Laine Stump <laine at laine.org>
---
tests/qemumemlocktest.c | 21 ++++++++++++++++++++-
tests/qemuxml2argvtest.c | 25 ++++++++++++++++++++++---
tests/qemuxml2xmltest.c | 21 ++++++++++++++++++++-
tests/virpcimock.c | 43 +++++++++++++++++++++++++++++++++++++------
4 files changed, 99 insertions(+), 11 deletions(-)
diff --git a/tests/qemumemlocktest.c b/tests/qemumemlocktest.c
index 6cf17a4..c0f1dc3 100644
--- a/tests/qemumemlocktest.c
+++ b/tests/qemumemlocktest.c
@@ -56,11 +56,25 @@ testCompareMemLock(const void *data)
return ret;
}
+# define FAKEROOTDIRTEMPLATE abs_builddir "/fakerootdir-XXXXXX"
static int
mymain(void)
{
int ret = 0;
+ char *fakerootdir;
+
+ if (VIR_STRDUP_QUIET(fakerootdir, FAKEROOTDIRTEMPLATE) < 0) {
+ fprintf(stderr, "Out of memory\n");
+ abort();
+ }
+
+ if (!mkdtemp(fakerootdir)) {
+ fprintf(stderr, "Cannot create fakerootdir");
+ abort();
+ }
+
+ setenv("LIBVIRT_FAKE_ROOT_DIR", fakerootdir, 1);
abs_top_srcdir = getenv("abs_top_srcdir");
if (!abs_top_srcdir)
@@ -124,12 +138,17 @@ mymain(void)
DO_TEST("pseries-hardlimit+locked+hostdev", 2147483648);
DO_TEST("pseries-locked+hostdev", VIR_DOMAIN_MEMORY_PARAM_UNLIMITED);
+ if (getenv("LIBVIRT_SKIP_CLEANUP") == NULL)
+ virFileDeleteTree(fakerootdir);
+
qemuTestDriverFree(&driver);
+ VIR_FREE(fakerootdir);
return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
}
-VIR_TEST_MAIN(mymain)
+VIR_TEST_MAIN_PRELOAD(mymain,
+ abs_builddir "/.libs/virpcimock.so")
#else
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index 27eea70..01c0a65 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -534,13 +534,27 @@ testCompareXMLToArgv(const void *data)
return ret;
}
+# define FAKEROOTDIRTEMPLATE abs_builddir "/fakerootdir-XXXXXX"
static int
mymain(void)
{
int ret = 0;
+ char *fakerootdir;
bool skipLegacyCPUs = false;
+ if (VIR_STRDUP_QUIET(fakerootdir, FAKEROOTDIRTEMPLATE) < 0) {
+ fprintf(stderr, "Out of memory\n");
+ abort();
+ }
+
+ if (!mkdtemp(fakerootdir)) {
+ fprintf(stderr, "Cannot create fakerootdir");
+ abort();
+ }
+
+ setenv("LIBVIRT_FAKE_ROOT_DIR", fakerootdir, 1);
+
abs_top_srcdir = getenv("abs_top_srcdir");
if (!abs_top_srcdir)
abs_top_srcdir = abs_srcdir "/..";
@@ -2621,15 +2635,20 @@ mymain(void)
DO_TEST_PARSE_ERROR("cpu-cache-passthrough3", QEMU_CAPS_KVM);
DO_TEST_PARSE_ERROR("cpu-cache-passthrough-l3", QEMU_CAPS_KVM);
+ if (getenv("LIBVIRT_SKIP_CLEANUP") == NULL)
+ virFileDeleteTree(fakerootdir);
+
qemuTestDriverFree(&driver);
+ VIR_FREE(fakerootdir);
return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
}
VIR_TEST_MAIN_PRELOAD(mymain,
- abs_builddir "/.libs/qemuxml2argvmock.so",
- abs_builddir "/.libs/virrandommock.so",
- abs_builddir "/.libs/qemucpumock.so")
+ abs_builddir "/.libs/qemuxml2argvmock.so",
+ abs_builddir "/.libs/virrandommock.so",
+ abs_builddir "/.libs/qemucpumock.so",
+ abs_builddir "/.libs/virpcimock.so")
#else
diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c
index 1307299..c74614c 100644
--- a/tests/qemuxml2xmltest.c
+++ b/tests/qemuxml2xmltest.c
@@ -303,14 +303,28 @@ testInfoSet(struct testInfo *info,
return -1;
}
+# define FAKEROOTDIRTEMPLATE abs_builddir "/fakerootdir-XXXXXX"
static int
mymain(void)
{
int ret = 0;
+ char *fakerootdir;
struct testInfo info;
virQEMUDriverConfigPtr cfg = NULL;
+ if (VIR_STRDUP_QUIET(fakerootdir, FAKEROOTDIRTEMPLATE) < 0) {
+ fprintf(stderr, "Out of memory\n");
+ abort();
+ }
+
+ if (!mkdtemp(fakerootdir)) {
+ fprintf(stderr, "Cannot create fakerootdir");
+ abort();
+ }
+
+ setenv("LIBVIRT_FAKE_ROOT_DIR", fakerootdir, 1);
+
memset(&info, 0, sizeof(info));
if (qemuTestDriverInit(&driver) < 0)
@@ -1145,12 +1159,17 @@ mymain(void)
DO_TEST("cpu-check-default-partial", NONE);
DO_TEST("cpu-check-default-partial2", NONE);
+ if (getenv("LIBVIRT_SKIP_CLEANUP") == NULL)
+ virFileDeleteTree(fakerootdir);
+
qemuTestDriverFree(&driver);
+ VIR_FREE(fakerootdir);
return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
}
-VIR_TEST_MAIN(mymain)
+VIR_TEST_MAIN_PRELOAD(mymain,
+ abs_builddir "/.libs/virpcimock.so")
#else
diff --git a/tests/virpcimock.c b/tests/virpcimock.c
index e9408aa..19b10f4 100644
--- a/tests/virpcimock.c
+++ b/tests/virpcimock.c
@@ -127,6 +127,7 @@ struct pciDevice {
int vendor;
int device;
int class;
+ int iommuGroup;
struct pciDriver *driver; /* Driver attached. NULL if attached to no driver */
};
@@ -190,6 +191,22 @@ make_file(const char *path,
VIR_FREE(filepath);
}
+static void
+make_symlink(const char *path,
+ const char *name,
+ const char *target)
+{
+ char *filepath = NULL;
+
+ if (virAsprintfQuiet(&filepath, "%s/%s", path, name) < 0)
+ ABORT_OOM();
+
+ if (symlink(target, filepath) < 0)
+ ABORT("Unable to create symlink filepath -> target");
+
+ VIR_FREE(filepath);
+}
+
static int
pci_read_file(const char *path,
char *buf,
@@ -322,7 +339,7 @@ pci_device_new_from_stub(const struct pciDevice *data)
char *id;
char *c;
char *configSrc;
- char tmp[32];
+ char tmp[256];
struct stat sb;
if (VIR_STRDUP_QUIET(id, data->id) < 0)
@@ -386,6 +403,20 @@ pci_device_new_from_stub(const struct pciDevice *data)
ABORT("@tmp overflow");
make_file(devpath, "class", tmp, -1);
+ if (snprintf(tmp, sizeof(tmp),
+ "%s/../../../kernel/iommu_groups/%d",
+ devpath, dev->iommuGroup) < 0) {
+ ABORT("@tmp overflow");
+ }
+ if (virFileMakePath(tmp) < 0)
+ ABORT("Unable to create %s", tmp);
+
+ if (snprintf(tmp, sizeof(tmp),
+ "../../../kernel/iommu_groups/%d", dev->iommuGroup) < 0) {
+ ABORT("@tmp overflow");
+ }
+ make_symlink(devpath, "iommu_group", tmp);
+
if (pci_device_autobind(dev) < 0)
ABORT("Unable to bind: %s", data->id);
@@ -821,12 +852,12 @@ init_env(void)
MAKE_PCI_DEVICE("0000:00:02.0", 0x8086, 0x0046);
MAKE_PCI_DEVICE("0000:00:03.0", 0x8086, 0x0048);
MAKE_PCI_DEVICE("0001:00:00.0", 0x1014, 0x03b9, .class = 0x060400);
- MAKE_PCI_DEVICE("0001:01:00.0", 0x8086, 0x105e);
- MAKE_PCI_DEVICE("0001:01:00.1", 0x8086, 0x105e);
+ MAKE_PCI_DEVICE("0001:01:00.0", 0x8086, 0x105e, .iommuGroup = 2);
+ MAKE_PCI_DEVICE("0001:01:00.1", 0x8086, 0x105e, .iommuGroup = 2);
MAKE_PCI_DEVICE("0005:80:00.0", 0x10b5, 0x8112, .class = 0x060400);
- MAKE_PCI_DEVICE("0005:90:01.0", 0x1033, 0x0035);
- MAKE_PCI_DEVICE("0005:90:01.1", 0x1033, 0x0035);
- MAKE_PCI_DEVICE("0005:90:01.2", 0x1033, 0x00e0);
+ MAKE_PCI_DEVICE("0005:90:01.0", 0x1033, 0x0035, .iommuGroup = 3);
+ MAKE_PCI_DEVICE("0005:90:01.1", 0x1033, 0x0035, .iommuGroup = 3);
+ MAKE_PCI_DEVICE("0005:90:01.2", 0x1033, 0x00e0, .iommuGroup = 3);
MAKE_PCI_DEVICE("0000:0a:01.0", 0x8086, 0x0047);
MAKE_PCI_DEVICE("0000:0a:02.0", 0x8286, 0x0048);
MAKE_PCI_DEVICE("0000:0a:03.0", 0x8386, 0x0048);
--
2.7.5
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