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libvirt/tests/virhostdevtest.c

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/*
* Copyright (C) 2014 SUSE LINUX Products GmbH, Nuernberg, Germany.
* Copyright (C) 2014-2016 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"
#ifdef __linux__
# include <sys/types.h>
# include <sys/stat.h>
# include <sys/ioctl.h>
# include <fcntl.h>
# include "virlog.h"
# include "virhostdev.h"
# define VIR_FROM_THIS VIR_FROM_NONE
VIR_LOG_INIT("tests.hostdevtest");
# define CHECK_LIST_COUNT(list, cnt, cb) \
do { \
size_t actualCount; \
if ((actualCount = cb(list)) != cnt) { \
virReportError(VIR_ERR_INTERNAL_ERROR, \
"Unexpected count of items in " #list ": %zu, " \
"expecting %zu", actualCount, (size_t) cnt); \
return -1; \
} \
} while (0)
# define CHECK_PCI_LIST_COUNT(list, cnt) \
CHECK_LIST_COUNT(list, cnt, virPCIDeviceListCount)
# 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;
static void
myCleanup(void)
{
size_t i;
for (i = 0; i < nhostdevs; i++) {
virPCIDeviceFree(dev[i]);
virDomainHostdevDefFree(hostdevs[i]);
}
if (mgr) {
if (!getenv("LIBVIRT_SKIP_CLEANUP"))
virFileDeleteTree(mgr->stateDir);
virObjectUnref(mgr->activePCIHostdevs);
virObjectUnref(mgr->activeUSBHostdevs);
virObjectUnref(mgr->inactivePCIHostdevs);
virObjectUnref(mgr->activeSCSIHostdevs);
VIR_FREE(mgr->stateDir);
VIR_FREE(mgr);
}
}
static int
myInit(void)
{
size_t i;
for (i = 0; i < nhostdevs; i++) {
virDomainHostdevSubsys subsys;
hostdevs[i] = virDomainHostdevDefNew();
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_VFIO;
hostdevs[i]->source.subsys = subsys;
}
for (i = 0; i < nhostdevs; i++) {
if (!(dev[i] = virPCIDeviceNew(0, 0, i + 1, 0)))
goto cleanup;
virPCIDeviceSetStubDriver(dev[i], VIR_PCI_STUB_DRIVER_VFIO);
}
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;
mgr->stateDir = g_strdup(TEST_STATE_DIR);
if (virFileMakePath(mgr->stateDir) < 0)
goto cleanup;
return 0;
cleanup:
myCleanup();
return -1;
}
static int
testVirHostdevPreparePCIHostdevs_unmanaged(void)
{
size_t active_count, inactive_count, i;
for (i = 0; i < nhostdevs; i++)
hostdevs[i]->managed = false;
active_count = virPCIDeviceListCount(mgr->activePCIHostdevs);
inactive_count = virPCIDeviceListCount(mgr->inactivePCIHostdevs);
/* Test normal functionality */
VIR_TEST_DEBUG("Test 0 hostdevs");
if (virHostdevPreparePCIDevices(mgr, drv_name, dom_name, uuid,
NULL, 0, 0) < 0)
return -1;
CHECK_PCI_LIST_COUNT(mgr->activePCIHostdevs, active_count);
CHECK_PCI_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count);
/* Test unmanaged hostdevs */
VIR_TEST_DEBUG("Test >=1 unmanaged hostdevs");
if (virHostdevPreparePCIDevices(mgr, drv_name, dom_name, uuid,
hostdevs, nhostdevs, 0) < 0)
return -1;
CHECK_PCI_LIST_COUNT(mgr->activePCIHostdevs, active_count + nhostdevs);
CHECK_PCI_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count - nhostdevs);
/* Test conflict */
active_count = virPCIDeviceListCount(mgr->activePCIHostdevs);
inactive_count = virPCIDeviceListCount(mgr->inactivePCIHostdevs);
VIR_TEST_DEBUG("Test: prepare same hostdevs for same driver/domain again");
if (virHostdevPreparePCIDevices(mgr, drv_name, dom_name, uuid,
&hostdevs[0], 1, 0) == 0)
return -1;
virResetLastError();
CHECK_PCI_LIST_COUNT(mgr->activePCIHostdevs, active_count);
CHECK_PCI_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count);
VIR_TEST_DEBUG("Test: prepare same hostdevs for same driver, diff domain again");
if (virHostdevPreparePCIDevices(mgr, drv_name, "test_domain1", uuid,
&hostdevs[1], 1, 0) == 0)
return -1;
virResetLastError();
CHECK_PCI_LIST_COUNT(mgr->activePCIHostdevs, active_count);
CHECK_PCI_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count);
VIR_TEST_DEBUG("Test: prepare same hostdevs for diff driver/domain again");
if (virHostdevPreparePCIDevices(mgr, "test_driver1", dom_name, uuid,
&hostdevs[2], 1, 0) == 0)
return -1;
virResetLastError();
CHECK_PCI_LIST_COUNT(mgr->activePCIHostdevs, active_count);
CHECK_PCI_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count);
return 0;
}
static int
testVirHostdevReAttachPCIHostdevs_unmanaged(void)
{
size_t active_count, inactive_count, i;
for (i = 0; i < nhostdevs; i++) {
if (hostdevs[i]->managed != false) {
VIR_TEST_DEBUG("invalid test");
return -1;
}
}
active_count = virPCIDeviceListCount(mgr->activePCIHostdevs);
inactive_count = virPCIDeviceListCount(mgr->inactivePCIHostdevs);
VIR_TEST_DEBUG("Test 0 hostdevs");
virHostdevReAttachPCIDevices(mgr, drv_name, dom_name, NULL, 0, NULL);
CHECK_PCI_LIST_COUNT(mgr->activePCIHostdevs, active_count);
CHECK_PCI_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count);
VIR_TEST_DEBUG("Test >=1 unmanaged hostdevs");
virHostdevReAttachPCIDevices(mgr, drv_name, dom_name,
hostdevs, nhostdevs, NULL);
CHECK_PCI_LIST_COUNT(mgr->activePCIHostdevs, active_count - nhostdevs);
CHECK_PCI_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count + nhostdevs);
return 0;
}
static int
testVirHostdevPreparePCIHostdevs_managed(bool mixed)
{
size_t active_count, inactive_count, i;
for (i = 0; i < nhostdevs; i++)
hostdevs[i]->managed = true;
active_count = virPCIDeviceListCount(mgr->activePCIHostdevs);
inactive_count = virPCIDeviceListCount(mgr->inactivePCIHostdevs);
/* Test normal functionality */
VIR_TEST_DEBUG("Test >=1 hostdevs");
if (virHostdevPreparePCIDevices(mgr, drv_name, dom_name, uuid,
hostdevs, nhostdevs, 0) < 0)
return -1;
CHECK_PCI_LIST_COUNT(mgr->activePCIHostdevs, active_count + nhostdevs);
/* If testing a mixed roundtrip, devices are already in the inactive list
* before we start and are removed from it as soon as we attach them to
* the guest */
if (mixed)
CHECK_PCI_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count - nhostdevs);
else
CHECK_PCI_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count);
/* Test conflict */
active_count = virPCIDeviceListCount(mgr->activePCIHostdevs);
inactive_count = virPCIDeviceListCount(mgr->inactivePCIHostdevs);
VIR_TEST_DEBUG("Test: prepare same hostdevs for same driver/domain again");
if (virHostdevPreparePCIDevices(mgr, drv_name, dom_name, uuid,
&hostdevs[0], 1, 0) == 0)
return -1;
virResetLastError();
CHECK_PCI_LIST_COUNT(mgr->activePCIHostdevs, active_count);
CHECK_PCI_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count);
VIR_TEST_DEBUG("Test: prepare same hostdevs for same driver, diff domain again");
if (virHostdevPreparePCIDevices(mgr, drv_name, "test_domain1", uuid,
&hostdevs[1], 1, 0) == 0)
return -1;
virResetLastError();
CHECK_PCI_LIST_COUNT(mgr->activePCIHostdevs, active_count);
CHECK_PCI_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count);
VIR_TEST_DEBUG("Test: prepare same hostdevs for diff driver/domain again");
if (virHostdevPreparePCIDevices(mgr, "test_driver1", dom_name, uuid,
&hostdevs[2], 1, 0) == 0)
return -1;
virResetLastError();
CHECK_PCI_LIST_COUNT(mgr->activePCIHostdevs, active_count);
CHECK_PCI_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count);
return 0;
}
static int
testVirHostdevReAttachPCIHostdevs_managed(bool mixed)
{
size_t active_count, inactive_count, i;
for (i = 0; i < nhostdevs; i++) {
if (hostdevs[i]->managed != true) {
VIR_TEST_DEBUG("invalid test");
return -1;
}
}
active_count = virPCIDeviceListCount(mgr->activePCIHostdevs);
inactive_count = virPCIDeviceListCount(mgr->inactivePCIHostdevs);
VIR_TEST_DEBUG("Test 0 hostdevs");
virHostdevReAttachPCIDevices(mgr, drv_name, dom_name, NULL, 0, NULL);
CHECK_PCI_LIST_COUNT(mgr->activePCIHostdevs, active_count);
CHECK_PCI_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count);
VIR_TEST_DEBUG("Test >=1 hostdevs");
virHostdevReAttachPCIDevices(mgr, drv_name, dom_name,
hostdevs, nhostdevs, NULL);
CHECK_PCI_LIST_COUNT(mgr->activePCIHostdevs, active_count - nhostdevs);
/* If testing a mixed roundtrip, devices are added back to the inactive
* list as soon as we detach from the guest */
if (mixed)
CHECK_PCI_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count + nhostdevs);
else
CHECK_PCI_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count);
return 0;
}
static int
testVirHostdevDetachPCINodeDevice(void)
{
size_t active_count, inactive_count, i;
for (i = 0; i < nhostdevs; i++) {
active_count = virPCIDeviceListCount(mgr->activePCIHostdevs);
inactive_count = virPCIDeviceListCount(mgr->inactivePCIHostdevs);
if (virHostdevPCINodeDeviceDetach(mgr, dev[i]) < 0)
return -1;
CHECK_PCI_LIST_COUNT(mgr->activePCIHostdevs, active_count);
CHECK_PCI_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count + 1);
}
return 0;
}
static int
testVirHostdevResetPCINodeDevice(void)
{
size_t active_count, inactive_count, i;
for (i = 0; i < nhostdevs; i++) {
active_count = virPCIDeviceListCount(mgr->activePCIHostdevs);
inactive_count = virPCIDeviceListCount(mgr->inactivePCIHostdevs);
if (virHostdevPCINodeDeviceReset(mgr, dev[i]) < 0)
return -1;
CHECK_PCI_LIST_COUNT(mgr->activePCIHostdevs, active_count);
CHECK_PCI_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count);
}
return 0;
}
static int
testVirHostdevReAttachPCINodeDevice(void)
{
size_t active_count, inactive_count, i;
for (i = 0; i < nhostdevs; i++) {
active_count = virPCIDeviceListCount(mgr->activePCIHostdevs);
inactive_count = virPCIDeviceListCount(mgr->inactivePCIHostdevs);
if (virHostdevPCINodeDeviceReAttach(mgr, dev[i]) < 0)
return -1;
CHECK_PCI_LIST_COUNT(mgr->activePCIHostdevs, active_count);
CHECK_PCI_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count - 1);
}
return 0;
}
static int
testVirHostdevUpdateActivePCIHostdevs(void)
{
size_t active_count, inactive_count;
active_count = virPCIDeviceListCount(mgr->activePCIHostdevs);
inactive_count = virPCIDeviceListCount(mgr->inactivePCIHostdevs);
VIR_TEST_DEBUG("Test 0 hostdevs");
if (virHostdevUpdateActivePCIDevices(mgr, NULL, 0,
drv_name, dom_name) < 0)
return -1;
CHECK_PCI_LIST_COUNT(mgr->activePCIHostdevs, active_count);
CHECK_PCI_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count);
VIR_TEST_DEBUG("Test >=1 hostdevs");
if (virHostdevUpdateActivePCIDevices(mgr, hostdevs, nhostdevs,
drv_name, dom_name) < 0)
return -1;
CHECK_PCI_LIST_COUNT(mgr->activePCIHostdevs, active_count + nhostdevs);
CHECK_PCI_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count);
return 0;
}
/**
* testVirHostdevRoundtripNoGuest:
* @opaque: unused
*
* Perform a roundtrip without ever assigning devices to the guest.
*
* 1. Detach devices from the host
* 2. Reattach devices to the host
*/
static int
testVirHostdevRoundtripNoGuest(const void *opaque G_GNUC_UNUSED)
{
if (testVirHostdevDetachPCINodeDevice() < 0)
return -1;
if (testVirHostdevReAttachPCINodeDevice() < 0)
return -1;
return 0;
}
/**
* testVirHostdevRoundtripUnmanaged:
* @opaque: unused
*
* Perform a roundtrip with unmanaged devices.
*
* 1. Detach devices from the host
* 2. Attach devices to the guest as unmanaged
* 3. Detach devices from the guest as unmanaged
* 4. Reattach devices to the host
*/
static int
testVirHostdevRoundtripUnmanaged(const void *opaque G_GNUC_UNUSED)
{
if (testVirHostdevDetachPCINodeDevice() < 0)
return -1;
if (testVirHostdevPreparePCIHostdevs_unmanaged() < 0)
return -1;
if (testVirHostdevReAttachPCIHostdevs_unmanaged() < 0)
return -1;
if (testVirHostdevReAttachPCINodeDevice() < 0)
return -1;
return 0;
}
/**
* testVirHostdevRoundtripManaged:
* @opaque: unused
*
* Perform a roundtrip with managed devices.
*
* 1. Attach devices to the guest as managed
* 2. Detach devices from the guest as managed
*/
static int
testVirHostdevRoundtripManaged(const void *opaque G_GNUC_UNUSED)
{
if (testVirHostdevPreparePCIHostdevs_managed(false) < 0)
return -1;
if (testVirHostdevReAttachPCIHostdevs_managed(false) < 0)
return -1;
return 0;
}
/**
* testVirHostdevRoundtripMixed:
* @opaque: unused
*
* Perform a roundtrip with managed devices but manually detach the devices
* from the host first.
*
* 1. Detach devices from the host
* 2. Attach devices to the guest as managed
* 3. Detach devices from the guest as managed
* 4. Reattach devices to the host
*/
static int
testVirHostdevRoundtripMixed(const void *opaque G_GNUC_UNUSED)
{
if (testVirHostdevDetachPCINodeDevice() < 0)
return -1;
if (testVirHostdevPreparePCIHostdevs_managed(true) < 0)
return -1;
if (testVirHostdevReAttachPCIHostdevs_managed(true) < 0)
return -1;
if (testVirHostdevReAttachPCINodeDevice() < 0)
return -1;
return 0;
}
/**
* testVirHostdevOther:
* @opaque: unused
*
* Perform other operations on devices.
*
* 1. Reset devices
* 2. Update list of active devices
*/
static int
testVirHostdevOther(const void *opaque G_GNUC_UNUSED)
{
if (testVirHostdevResetPCINodeDevice() < 0)
return -1;
if (testVirHostdevUpdateActivePCIHostdevs() < 0)
return -1;
return 0;
}
# define FAKEROOTDIRTEMPLATE abs_builddir "/fakerootdir-XXXXXX"
static int
mymain(void)
{
int ret = 0;
g_autofree char *fakerootdir = NULL;
fakerootdir = g_strdup(FAKEROOTDIRTEMPLATE);
if (!mkdtemp(fakerootdir)) {
fprintf(stderr, "Cannot create fakerootdir");
abort();
}
setenv("LIBVIRT_FAKE_ROOT_DIR", fakerootdir, 1);
# define DO_TEST(fnc) \
do { \
if (virTestRun(#fnc, fnc, NULL) < 0) \
ret = -1; \
} while (0)
if (myInit() < 0) {
fprintf(stderr, "Init data structures failed.");
virFileDeleteTree(fakerootdir);
return EXIT_FAILURE;
}
DO_TEST(testVirHostdevRoundtripNoGuest);
DO_TEST(testVirHostdevRoundtripUnmanaged);
DO_TEST(testVirHostdevRoundtripManaged);
DO_TEST(testVirHostdevRoundtripMixed);
DO_TEST(testVirHostdevOther);
myCleanup();
if (getenv("LIBVIRT_SKIP_CLEANUP") == NULL)
virFileDeleteTree(fakerootdir);
return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
}
VIR_TEST_MAIN_PRELOAD(mymain, VIR_TEST_MOCK("virpci"))
#else
int
main(void)
{
return EXIT_AM_SKIP;
}
#endif
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