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libvirt/tests/virhostdevtest.c
Daniel P. Berrangé 600462834f Remove all Author(s): lines from source file headers 
In many files there are header comments that contain an Author:
statement, supposedly reflecting who originally wrote the code.
In a large collaborative project like libvirt, any non-trivial
file will have been modified by a large number of different
contributors. IOW, the Author: comments are quickly out of date,
omitting people who have made significant contribitions.

In some places Author: lines have been added despite the person
merely being responsible for creating the file by moving existing
code out of another file. IOW, the Author: lines give an incorrect
record of authorship.

With this all in mind, the comments are useless as a means to identify
who to talk to about code in a particular file. Contributors will always
be better off using 'git log' and 'git blame' if they need to  find the
author of a particular bit of code.

This commit thus deletes all Author: comments from the source and adds
a rule to prevent them reappearing.

The Copyright headers are similarly misleading and inaccurate, however,
we cannot delete these as they have legal meaning, despite being largely
inaccurate. In addition only the copyright holder is permitted to change
their respective copyright statement.

Reviewed-by: Erik Skultety <eskultet@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-12-13 16:08:38 +00:00

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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) \
do { \
size_t actualCount; \
if ((actualCount = virPCIDeviceListCount(list)) != cnt) { \
virReportError(VIR_ERR_INTERNAL_ERROR, \
"Unexpected count of items in " #list ": %zu, " \
"expecting %zu", actualCount, (size_t) cnt); \
goto cleanup; \
} \
} while (0)
# 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_KVM;
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_KVM);
}
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;
}
# if HAVE_LINUX_KVM_H
# include <linux/kvm.h>
static bool
virHostdevHostSupportsPassthroughKVM(void)
{
int kvmfd = -1;
bool ret = false;
if ((kvmfd = open("/dev/kvm", O_RDONLY)) < 0)
goto cleanup;
# ifdef KVM_CAP_IOMMU
if ((ioctl(kvmfd, KVM_CHECK_EXTENSION, KVM_CAP_IOMMU)) <= 0)
goto cleanup;
ret = true;
# endif
cleanup:
VIR_FORCE_CLOSE(kvmfd);
return ret;
}
# else
static bool
virHostdevHostSupportsPassthroughKVM(void)
{
return false;
}
# endif
static int
testVirHostdevPreparePCIHostdevs_unmanaged(void)
{
int ret = -1;
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_DEBUG("Test 0 hostdevs");
if (virHostdevPreparePCIDevices(mgr, drv_name, dom_name, uuid,
NULL, 0, 0) < 0)
goto cleanup;
CHECK_LIST_COUNT(mgr->activePCIHostdevs, active_count);
CHECK_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count);
/* Test unmanaged hostdevs */
VIR_DEBUG("Test >=1 unmanaged hostdevs");
if (virHostdevPreparePCIDevices(mgr, drv_name, dom_name, uuid,
hostdevs, nhostdevs, 0) < 0)
goto cleanup;
CHECK_LIST_COUNT(mgr->activePCIHostdevs, active_count + nhostdevs);
CHECK_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count - nhostdevs);
/* Test conflict */
active_count = virPCIDeviceListCount(mgr->activePCIHostdevs);
inactive_count = virPCIDeviceListCount(mgr->inactivePCIHostdevs);
VIR_DEBUG("Test: prepare same hostdevs for same driver/domain again");
if (!virHostdevPreparePCIDevices(mgr, drv_name, dom_name, uuid,
&hostdevs[0], 1, 0))
goto cleanup;
CHECK_LIST_COUNT(mgr->activePCIHostdevs, active_count);
CHECK_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count);
VIR_DEBUG("Test: prepare same hostdevs for same driver, diff domain again");
if (!virHostdevPreparePCIDevices(mgr, drv_name, "test_domain1", uuid,
&hostdevs[1], 1, 0))
goto cleanup;
CHECK_LIST_COUNT(mgr->activePCIHostdevs, active_count);
CHECK_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count);
VIR_DEBUG("Test: prepare same hostdevs for diff driver/domain again");
if (!virHostdevPreparePCIDevices(mgr, "test_driver1", dom_name, uuid,
&hostdevs[2], 1, 0))
goto cleanup;
CHECK_LIST_COUNT(mgr->activePCIHostdevs, active_count);
CHECK_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count);
ret = 0;
cleanup:
return ret;
}
static int
testVirHostdevReAttachPCIHostdevs_unmanaged(void)
{
int ret = -1;
size_t active_count, inactive_count, i;
for (i = 0; i < nhostdevs; i++) {
if (hostdevs[i]->managed != false) {
VIR_DEBUG("invalid test");
return -1;
}
}
active_count = virPCIDeviceListCount(mgr->activePCIHostdevs);
inactive_count = virPCIDeviceListCount(mgr->inactivePCIHostdevs);
VIR_DEBUG("Test 0 hostdevs");
virHostdevReAttachPCIDevices(mgr, drv_name, dom_name, NULL, 0, NULL);
CHECK_LIST_COUNT(mgr->activePCIHostdevs, active_count);
CHECK_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count);
VIR_DEBUG("Test >=1 unmanaged hostdevs");
virHostdevReAttachPCIDevices(mgr, drv_name, dom_name,
hostdevs, nhostdevs, NULL);
CHECK_LIST_COUNT(mgr->activePCIHostdevs, active_count - nhostdevs);
CHECK_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count + nhostdevs);
ret = 0;
cleanup:
return ret;
}
static int
testVirHostdevPreparePCIHostdevs_managed(bool mixed)
{
int ret = -1;
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_DEBUG("Test >=1 hostdevs");
if (virHostdevPreparePCIDevices(mgr, drv_name, dom_name, uuid,
hostdevs, nhostdevs, 0) < 0)
goto cleanup;
CHECK_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_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count - nhostdevs);
else
CHECK_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count);
/* Test conflict */
active_count = virPCIDeviceListCount(mgr->activePCIHostdevs);
inactive_count = virPCIDeviceListCount(mgr->inactivePCIHostdevs);
VIR_DEBUG("Test: prepare same hostdevs for same driver/domain again");
if (!virHostdevPreparePCIDevices(mgr, drv_name, dom_name, uuid,
&hostdevs[0], 1, 0))
goto cleanup;
CHECK_LIST_COUNT(mgr->activePCIHostdevs, active_count);
CHECK_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count);
VIR_DEBUG("Test: prepare same hostdevs for same driver, diff domain again");
if (!virHostdevPreparePCIDevices(mgr, drv_name, "test_domain1", uuid,
&hostdevs[1], 1, 0))
goto cleanup;
CHECK_LIST_COUNT(mgr->activePCIHostdevs, active_count);
CHECK_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count);
VIR_DEBUG("Test: prepare same hostdevs for diff driver/domain again");
if (!virHostdevPreparePCIDevices(mgr, "test_driver1", dom_name, uuid,
&hostdevs[2], 1, 0))
goto cleanup;
CHECK_LIST_COUNT(mgr->activePCIHostdevs, active_count);
CHECK_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count);
ret = 0;
cleanup:
return ret;
}
static int
testVirHostdevReAttachPCIHostdevs_managed(bool mixed)
{
int ret = -1;
size_t active_count, inactive_count, i;
for (i = 0; i < nhostdevs; i++) {
if (hostdevs[i]->managed != true) {
VIR_DEBUG("invalid test");
return -1;
}
}
active_count = virPCIDeviceListCount(mgr->activePCIHostdevs);
inactive_count = virPCIDeviceListCount(mgr->inactivePCIHostdevs);
VIR_DEBUG("Test 0 hostdevs");
virHostdevReAttachPCIDevices(mgr, drv_name, dom_name, NULL, 0, NULL);
CHECK_LIST_COUNT(mgr->activePCIHostdevs, active_count);
CHECK_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count);
VIR_DEBUG("Test >=1 hostdevs");
virHostdevReAttachPCIDevices(mgr, drv_name, dom_name,
hostdevs, nhostdevs, NULL);
CHECK_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_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count + nhostdevs);
else
CHECK_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count);
ret = 0;
cleanup:
return ret;
}
static int
testVirHostdevDetachPCINodeDevice(void)
{
int ret = -1;
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)
goto cleanup;
CHECK_LIST_COUNT(mgr->activePCIHostdevs, active_count);
CHECK_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count + 1);
}
ret = 0;
cleanup:
return ret;
}
static int
testVirHostdevResetPCINodeDevice(void)
{
int ret = -1;
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)
goto cleanup;
CHECK_LIST_COUNT(mgr->activePCIHostdevs, active_count);
CHECK_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count);
}
ret = 0;
cleanup:
return ret;
}
static int
testVirHostdevReAttachPCINodeDevice(void)
{
int ret = -1;
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)
goto cleanup;
CHECK_LIST_COUNT(mgr->activePCIHostdevs, active_count);
CHECK_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count - 1);
}
ret = 0;
cleanup:
return ret;
}
static int
testVirHostdevUpdateActivePCIHostdevs(void)
{
int ret = -1;
size_t active_count, inactive_count;
active_count = virPCIDeviceListCount(mgr->activePCIHostdevs);
inactive_count = virPCIDeviceListCount(mgr->inactivePCIHostdevs);
VIR_DEBUG("Test 0 hostdevs");
if (virHostdevUpdateActivePCIDevices(mgr, NULL, 0,
drv_name, dom_name) < 0)
goto cleanup;
CHECK_LIST_COUNT(mgr->activePCIHostdevs, active_count);
CHECK_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count);
VIR_DEBUG("Test >=1 hostdevs");
if (virHostdevUpdateActivePCIDevices(mgr, hostdevs, nhostdevs,
drv_name, dom_name) < 0)
goto cleanup;
CHECK_LIST_COUNT(mgr->activePCIHostdevs, active_count + nhostdevs);
CHECK_LIST_COUNT(mgr->inactivePCIHostdevs, inactive_count);
ret = 0;
cleanup:
return ret;
}
/**
* 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 ATTRIBUTE_UNUSED)
{
int ret = -1;
if (testVirHostdevDetachPCINodeDevice() < 0)
goto out;
if (testVirHostdevReAttachPCINodeDevice() < 0)
goto out;
ret = 0;
out:
return ret;
}
/**
* 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 ATTRIBUTE_UNUSED)
{
int ret = -1;
if (testVirHostdevDetachPCINodeDevice() < 0)
goto out;
if (virHostdevHostSupportsPassthroughKVM()) {
if (testVirHostdevPreparePCIHostdevs_unmanaged() < 0)
goto out;
if (testVirHostdevReAttachPCIHostdevs_unmanaged() < 0)
goto out;
}
if (testVirHostdevReAttachPCINodeDevice() < 0)
goto out;
ret = 0;
out:
return ret;
}
/**
* 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 ATTRIBUTE_UNUSED)
{
int ret = -1;
if (virHostdevHostSupportsPassthroughKVM()) {
if (testVirHostdevPreparePCIHostdevs_managed(false) < 0)
goto out;
if (testVirHostdevReAttachPCIHostdevs_managed(false) < 0)
goto out;
}
ret = 0;
out:
return ret;
}
/**
* 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 ATTRIBUTE_UNUSED)
{
int ret = -1;
if (testVirHostdevDetachPCINodeDevice() < 0)
goto out;
if (virHostdevHostSupportsPassthroughKVM()) {
if (testVirHostdevPreparePCIHostdevs_managed(true) < 0)
goto out;
if (testVirHostdevReAttachPCIHostdevs_managed(true) < 0)
goto out;
}
if (testVirHostdevReAttachPCINodeDevice() < 0)
goto out;
ret = 0;
out:
return ret;
}
/**
* testVirHostdevOther:
* @opaque: unused
*
* Perform other operations on devices.
*
* 1. Reset devices
* 2. Update list of active devices
*/
static int
testVirHostdevOther(const void *opaque ATTRIBUTE_UNUSED)
{
int ret = -1;
if (testVirHostdevResetPCINodeDevice() < 0)
goto out;
if (testVirHostdevUpdateActivePCIHostdevs() < 0)
goto out;
ret = 0;
out:
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);
# define DO_TEST(fnc) \
do { \
VIR_DEBUG("Testing: %s", #fnc); \
if (virTestRun(#fnc, fnc, NULL) < 0) \
ret = -1; \
} while (0)
if (myInit() < 0)
fprintf(stderr, "Init data structures failed.");
DO_TEST(testVirHostdevRoundtripNoGuest);
DO_TEST(testVirHostdevRoundtripUnmanaged);
DO_TEST(testVirHostdevRoundtripManaged);
DO_TEST(testVirHostdevRoundtripMixed);
DO_TEST(testVirHostdevOther);
myCleanup();
if (getenv("LIBVIRT_SKIP_CLEANUP") == NULL)
virFileDeleteTree(fakerootdir);
VIR_FREE(fakerootdir);
return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
}
VIR_TEST_MAIN_PRELOAD(mymain, abs_builddir "/.libs/virpcimock.so")
#else
int
main(void)
{
return EXIT_AM_SKIP;
}
#endif
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