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qemu-e2k/tests/virtio-blk-test.c
Stefan Hajnoczi bccd82b407 libqos: access VIRTIO 1.0 vring in little-endian 
VIRTIO 1.0 uses little-endian for the vring.  Legacy VIRTIO uses guest
endianness.  Adjust the code to handle both.

Note that qvirtio_readq() is not defined because it has no users.  All
the other accessors are really needed.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20191023100425.12168-10-stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2019-10-25 07:46:22 -04:00

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/*
* QTest testcase for VirtIO Block Device
*
* Copyright (c) 2014 SUSE LINUX Products GmbH
* Copyright (c) 2014 Marc Marí
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#include "qemu/osdep.h"
#include "libqtest-single.h"
#include "qemu/bswap.h"
#include "qemu/module.h"
#include "standard-headers/linux/virtio_blk.h"
#include "standard-headers/linux/virtio_pci.h"
#include "libqos/qgraph.h"
#include "libqos/virtio-blk.h"
/* TODO actually test the results and get rid of this */
#define qmp_discard_response(...) qobject_unref(qmp(__VA_ARGS__))
#define TEST_IMAGE_SIZE (64 * 1024 * 1024)
#define QVIRTIO_BLK_TIMEOUT_US (30 * 1000 * 1000)
#define PCI_SLOT_HP 0x06
typedef struct QVirtioBlkReq {
uint32_t type;
uint32_t ioprio;
uint64_t sector;
char *data;
uint8_t status;
} QVirtioBlkReq;
#ifdef HOST_WORDS_BIGENDIAN
const bool host_is_big_endian = true;
#else
const bool host_is_big_endian; /* false */
#endif
static void drive_destroy(void *path)
{
unlink(path);
g_free(path);
qos_invalidate_command_line();
}
static char *drive_create(void)
{
int fd, ret;
char *t_path = g_strdup("/tmp/qtest.XXXXXX");
/* Create a temporary raw image */
fd = mkstemp(t_path);
g_assert_cmpint(fd, >=, 0);
ret = ftruncate(fd, TEST_IMAGE_SIZE);
g_assert_cmpint(ret, ==, 0);
close(fd);
g_test_queue_destroy(drive_destroy, t_path);
return t_path;
}
static inline void virtio_blk_fix_request(QVirtioDevice *d, QVirtioBlkReq *req)
{
if (qvirtio_is_big_endian(d) != host_is_big_endian) {
req->type = bswap32(req->type);
req->ioprio = bswap32(req->ioprio);
req->sector = bswap64(req->sector);
}
}
static inline void virtio_blk_fix_dwz_hdr(QVirtioDevice *d,
struct virtio_blk_discard_write_zeroes *dwz_hdr)
{
if (qvirtio_is_big_endian(d) != host_is_big_endian) {
dwz_hdr->sector = bswap64(dwz_hdr->sector);
dwz_hdr->num_sectors = bswap32(dwz_hdr->num_sectors);
dwz_hdr->flags = bswap32(dwz_hdr->flags);
}
}
static uint64_t virtio_blk_request(QGuestAllocator *alloc, QVirtioDevice *d,
QVirtioBlkReq *req, uint64_t data_size)
{
uint64_t addr;
uint8_t status = 0xFF;
switch (req->type) {
case VIRTIO_BLK_T_IN:
case VIRTIO_BLK_T_OUT:
g_assert_cmpuint(data_size % 512, ==, 0);
break;
case VIRTIO_BLK_T_DISCARD:
case VIRTIO_BLK_T_WRITE_ZEROES:
g_assert_cmpuint(data_size %
sizeof(struct virtio_blk_discard_write_zeroes), ==, 0);
break;
default:
g_assert_cmpuint(data_size, ==, 0);
}
addr = guest_alloc(alloc, sizeof(*req) + data_size);
virtio_blk_fix_request(d, req);
memwrite(addr, req, 16);
memwrite(addr + 16, req->data, data_size);
memwrite(addr + 16 + data_size, &status, sizeof(status));
return addr;
}
/* Returns the request virtqueue so the caller can perform further tests */
static QVirtQueue *test_basic(QVirtioDevice *dev, QGuestAllocator *alloc)
{
QVirtioBlkReq req;
uint64_t req_addr;
uint64_t capacity;
uint64_t features;
uint32_t free_head;
uint8_t status;
char *data;
QTestState *qts = global_qtest;
QVirtQueue *vq;
features = qvirtio_get_features(dev);
features = features & ~(QVIRTIO_F_BAD_FEATURE |
(1u << VIRTIO_RING_F_INDIRECT_DESC) |
(1u << VIRTIO_RING_F_EVENT_IDX) |
(1u << VIRTIO_BLK_F_SCSI));
qvirtio_set_features(dev, features);
capacity = qvirtio_config_readq(dev, 0);
g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512);
vq = qvirtqueue_setup(dev, alloc, 0);
qvirtio_set_driver_ok(dev);
/* Write and read with 3 descriptor layout */
/* Write request */
req.type = VIRTIO_BLK_T_OUT;
req.ioprio = 1;
req.sector = 0;
req.data = g_malloc0(512);
strcpy(req.data, "TEST");
req_addr = virtio_blk_request(alloc, dev, &req, 512);
g_free(req.data);
free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true);
qvirtqueue_add(qts, vq, req_addr + 16, 512, false, true);
qvirtqueue_add(qts, vq, req_addr + 528, 1, true, false);
qvirtqueue_kick(qts, dev, vq, free_head);
qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL,
QVIRTIO_BLK_TIMEOUT_US);
status = readb(req_addr + 528);
g_assert_cmpint(status, ==, 0);
guest_free(alloc, req_addr);
/* Read request */
req.type = VIRTIO_BLK_T_IN;
req.ioprio = 1;
req.sector = 0;
req.data = g_malloc0(512);
req_addr = virtio_blk_request(alloc, dev, &req, 512);
g_free(req.data);
free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true);
qvirtqueue_add(qts, vq, req_addr + 16, 512, true, true);
qvirtqueue_add(qts, vq, req_addr + 528, 1, true, false);
qvirtqueue_kick(qts, dev, vq, free_head);
qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL,
QVIRTIO_BLK_TIMEOUT_US);
status = readb(req_addr + 528);
g_assert_cmpint(status, ==, 0);
data = g_malloc0(512);
memread(req_addr + 16, data, 512);
g_assert_cmpstr(data, ==, "TEST");
g_free(data);
guest_free(alloc, req_addr);
if (features & (1u << VIRTIO_BLK_F_WRITE_ZEROES)) {
struct virtio_blk_discard_write_zeroes dwz_hdr;
void *expected;
/*
* WRITE_ZEROES request on the same sector of previous test where
* we wrote "TEST".
*/
req.type = VIRTIO_BLK_T_WRITE_ZEROES;
req.data = (char *) &dwz_hdr;
dwz_hdr.sector = 0;
dwz_hdr.num_sectors = 1;
dwz_hdr.flags = 0;
virtio_blk_fix_dwz_hdr(dev, &dwz_hdr);
req_addr = virtio_blk_request(alloc, dev, &req, sizeof(dwz_hdr));
free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true);
qvirtqueue_add(qts, vq, req_addr + 16, sizeof(dwz_hdr), false, true);
qvirtqueue_add(qts, vq, req_addr + 16 + sizeof(dwz_hdr), 1, true,
false);
qvirtqueue_kick(qts, dev, vq, free_head);
qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL,
QVIRTIO_BLK_TIMEOUT_US);
status = readb(req_addr + 16 + sizeof(dwz_hdr));
g_assert_cmpint(status, ==, 0);
guest_free(alloc, req_addr);
/* Read request to check if the sector contains all zeroes */
req.type = VIRTIO_BLK_T_IN;
req.ioprio = 1;
req.sector = 0;
req.data = g_malloc0(512);
req_addr = virtio_blk_request(alloc, dev, &req, 512);
g_free(req.data);
free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true);
qvirtqueue_add(qts, vq, req_addr + 16, 512, true, true);
qvirtqueue_add(qts, vq, req_addr + 528, 1, true, false);
qvirtqueue_kick(qts, dev, vq, free_head);
qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL,
QVIRTIO_BLK_TIMEOUT_US);
status = readb(req_addr + 528);
g_assert_cmpint(status, ==, 0);
data = g_malloc(512);
expected = g_malloc0(512);
memread(req_addr + 16, data, 512);
g_assert_cmpmem(data, 512, expected, 512);
g_free(expected);
g_free(data);
guest_free(alloc, req_addr);
}
if (features & (1u << VIRTIO_BLK_F_DISCARD)) {
struct virtio_blk_discard_write_zeroes dwz_hdr;
req.type = VIRTIO_BLK_T_DISCARD;
req.data = (char *) &dwz_hdr;
dwz_hdr.sector = 0;
dwz_hdr.num_sectors = 1;
dwz_hdr.flags = 0;
virtio_blk_fix_dwz_hdr(dev, &dwz_hdr);
req_addr = virtio_blk_request(alloc, dev, &req, sizeof(dwz_hdr));
free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true);
qvirtqueue_add(qts, vq, req_addr + 16, sizeof(dwz_hdr), false, true);
qvirtqueue_add(qts, vq, req_addr + 16 + sizeof(dwz_hdr), 1, true, false);
qvirtqueue_kick(qts, dev, vq, free_head);
qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL,
QVIRTIO_BLK_TIMEOUT_US);
status = readb(req_addr + 16 + sizeof(dwz_hdr));
g_assert_cmpint(status, ==, 0);
guest_free(alloc, req_addr);
}
if (features & (1u << VIRTIO_F_ANY_LAYOUT)) {
/* Write and read with 2 descriptor layout */
/* Write request */
req.type = VIRTIO_BLK_T_OUT;
req.ioprio = 1;
req.sector = 1;
req.data = g_malloc0(512);
strcpy(req.data, "TEST");
req_addr = virtio_blk_request(alloc, dev, &req, 512);
g_free(req.data);
free_head = qvirtqueue_add(qts, vq, req_addr, 528, false, true);
qvirtqueue_add(qts, vq, req_addr + 528, 1, true, false);
qvirtqueue_kick(qts, dev, vq, free_head);
qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL,
QVIRTIO_BLK_TIMEOUT_US);
status = readb(req_addr + 528);
g_assert_cmpint(status, ==, 0);
guest_free(alloc, req_addr);
/* Read request */
req.type = VIRTIO_BLK_T_IN;
req.ioprio = 1;
req.sector = 1;
req.data = g_malloc0(512);
req_addr = virtio_blk_request(alloc, dev, &req, 512);
g_free(req.data);
free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true);
qvirtqueue_add(qts, vq, req_addr + 16, 513, true, false);
qvirtqueue_kick(qts, dev, vq, free_head);
qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL,
QVIRTIO_BLK_TIMEOUT_US);
status = readb(req_addr + 528);
g_assert_cmpint(status, ==, 0);
data = g_malloc0(512);
memread(req_addr + 16, data, 512);
g_assert_cmpstr(data, ==, "TEST");
g_free(data);
guest_free(alloc, req_addr);
}
return vq;
}
static void basic(void *obj, void *data, QGuestAllocator *t_alloc)
{
QVirtioBlk *blk_if = obj;
QVirtQueue *vq;
vq = test_basic(blk_if->vdev, t_alloc);
qvirtqueue_cleanup(blk_if->vdev->bus, vq, t_alloc);
}
static void indirect(void *obj, void *u_data, QGuestAllocator *t_alloc)
{
QVirtQueue *vq;
QVirtioBlk *blk_if = obj;
QVirtioDevice *dev = blk_if->vdev;
QVirtioBlkReq req;
QVRingIndirectDesc *indirect;
uint64_t req_addr;
uint64_t capacity;
uint64_t features;
uint32_t free_head;
uint8_t status;
char *data;
QTestState *qts = global_qtest;
features = qvirtio_get_features(dev);
g_assert_cmphex(features & (1u << VIRTIO_RING_F_INDIRECT_DESC), !=, 0);
features = features & ~(QVIRTIO_F_BAD_FEATURE |
(1u << VIRTIO_RING_F_EVENT_IDX) |
(1u << VIRTIO_BLK_F_SCSI));
qvirtio_set_features(dev, features);
capacity = qvirtio_config_readq(dev, 0);
g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512);
vq = qvirtqueue_setup(dev, t_alloc, 0);
qvirtio_set_driver_ok(dev);
/* Write request */
req.type = VIRTIO_BLK_T_OUT;
req.ioprio = 1;
req.sector = 0;
req.data = g_malloc0(512);
strcpy(req.data, "TEST");
req_addr = virtio_blk_request(t_alloc, dev, &req, 512);
g_free(req.data);
indirect = qvring_indirect_desc_setup(qts, dev, t_alloc, 2);
qvring_indirect_desc_add(dev, qts, indirect, req_addr, 528, false);
qvring_indirect_desc_add(dev, qts, indirect, req_addr + 528, 1, true);
free_head = qvirtqueue_add_indirect(qts, vq, indirect);
qvirtqueue_kick(qts, dev, vq, free_head);
qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL,
QVIRTIO_BLK_TIMEOUT_US);
status = readb(req_addr + 528);
g_assert_cmpint(status, ==, 0);
g_free(indirect);
guest_free(t_alloc, req_addr);
/* Read request */
req.type = VIRTIO_BLK_T_IN;
req.ioprio = 1;
req.sector = 0;
req.data = g_malloc0(512);
strcpy(req.data, "TEST");
req_addr = virtio_blk_request(t_alloc, dev, &req, 512);
g_free(req.data);
indirect = qvring_indirect_desc_setup(qts, dev, t_alloc, 2);
qvring_indirect_desc_add(dev, qts, indirect, req_addr, 16, false);
qvring_indirect_desc_add(dev, qts, indirect, req_addr + 16, 513, true);
free_head = qvirtqueue_add_indirect(qts, vq, indirect);
qvirtqueue_kick(qts, dev, vq, free_head);
qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL,
QVIRTIO_BLK_TIMEOUT_US);
status = readb(req_addr + 528);
g_assert_cmpint(status, ==, 0);
data = g_malloc0(512);
memread(req_addr + 16, data, 512);
g_assert_cmpstr(data, ==, "TEST");
g_free(data);
g_free(indirect);
guest_free(t_alloc, req_addr);
qvirtqueue_cleanup(dev->bus, vq, t_alloc);
}
static void config(void *obj, void *data, QGuestAllocator *t_alloc)
{
QVirtioBlk *blk_if = obj;
QVirtioDevice *dev = blk_if->vdev;
int n_size = TEST_IMAGE_SIZE / 2;
uint64_t features;
uint64_t capacity;
features = qvirtio_get_features(dev);
features = features & ~(QVIRTIO_F_BAD_FEATURE |
(1u << VIRTIO_RING_F_INDIRECT_DESC) |
(1u << VIRTIO_RING_F_EVENT_IDX) |
(1u << VIRTIO_BLK_F_SCSI));
qvirtio_set_features(dev, features);
capacity = qvirtio_config_readq(dev, 0);
g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512);
qvirtio_set_driver_ok(dev);
qmp_discard_response("{ 'execute': 'block_resize', "
" 'arguments': { 'device': 'drive0', "
" 'size': %d } }", n_size);
qvirtio_wait_config_isr(dev, QVIRTIO_BLK_TIMEOUT_US);
capacity = qvirtio_config_readq(dev, 0);
g_assert_cmpint(capacity, ==, n_size / 512);
}
static void msix(void *obj, void *u_data, QGuestAllocator *t_alloc)
{
QVirtQueue *vq;
QVirtioBlkPCI *blk = obj;
QVirtioPCIDevice *pdev = &blk->pci_vdev;
QVirtioDevice *dev = &pdev->vdev;
QVirtioBlkReq req;
int n_size = TEST_IMAGE_SIZE / 2;
uint64_t req_addr;
uint64_t capacity;
uint64_t features;
uint32_t free_head;
uint8_t status;
char *data;
QOSGraphObject *blk_object = obj;
QPCIDevice *pci_dev = blk_object->get_driver(blk_object, "pci-device");
QTestState *qts = global_qtest;
if (qpci_check_buggy_msi(pci_dev)) {
return;
}
qpci_msix_enable(pdev->pdev);
qvirtio_pci_set_msix_configuration_vector(pdev, t_alloc, 0);
features = qvirtio_get_features(dev);
features = features & ~(QVIRTIO_F_BAD_FEATURE |
(1u << VIRTIO_RING_F_INDIRECT_DESC) |
(1u << VIRTIO_RING_F_EVENT_IDX) |
(1u << VIRTIO_BLK_F_SCSI));
qvirtio_set_features(dev, features);
capacity = qvirtio_config_readq(dev, 0);
g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512);
vq = qvirtqueue_setup(dev, t_alloc, 0);
qvirtqueue_pci_msix_setup(pdev, (QVirtQueuePCI *)vq, t_alloc, 1);
qvirtio_set_driver_ok(dev);
qmp_discard_response("{ 'execute': 'block_resize', "
" 'arguments': { 'device': 'drive0', "
" 'size': %d } }", n_size);
qvirtio_wait_config_isr(dev, QVIRTIO_BLK_TIMEOUT_US);
capacity = qvirtio_config_readq(dev, 0);
g_assert_cmpint(capacity, ==, n_size / 512);
/* Write request */
req.type = VIRTIO_BLK_T_OUT;
req.ioprio = 1;
req.sector = 0;
req.data = g_malloc0(512);
strcpy(req.data, "TEST");
req_addr = virtio_blk_request(t_alloc, dev, &req, 512);
g_free(req.data);
free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true);
qvirtqueue_add(qts, vq, req_addr + 16, 512, false, true);
qvirtqueue_add(qts, vq, req_addr + 528, 1, true, false);
qvirtqueue_kick(qts, dev, vq, free_head);
qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL,
QVIRTIO_BLK_TIMEOUT_US);
status = readb(req_addr + 528);
g_assert_cmpint(status, ==, 0);
guest_free(t_alloc, req_addr);
/* Read request */
req.type = VIRTIO_BLK_T_IN;
req.ioprio = 1;
req.sector = 0;
req.data = g_malloc0(512);
req_addr = virtio_blk_request(t_alloc, dev, &req, 512);
g_free(req.data);
free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true);
qvirtqueue_add(qts, vq, req_addr + 16, 512, true, true);
qvirtqueue_add(qts, vq, req_addr + 528, 1, true, false);
qvirtqueue_kick(qts, dev, vq, free_head);
qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL,
QVIRTIO_BLK_TIMEOUT_US);
status = readb(req_addr + 528);
g_assert_cmpint(status, ==, 0);
data = g_malloc0(512);
memread(req_addr + 16, data, 512);
g_assert_cmpstr(data, ==, "TEST");
g_free(data);
guest_free(t_alloc, req_addr);
/* End test */
qpci_msix_disable(pdev->pdev);
qvirtqueue_cleanup(dev->bus, vq, t_alloc);
}
static void idx(void *obj, void *u_data, QGuestAllocator *t_alloc)
{
QVirtQueue *vq;
QVirtioBlkPCI *blk = obj;
QVirtioPCIDevice *pdev = &blk->pci_vdev;
QVirtioDevice *dev = &pdev->vdev;
QVirtioBlkReq req;
uint64_t req_addr;
uint64_t capacity;
uint64_t features;
uint32_t free_head;
uint32_t write_head;
uint32_t desc_idx;
uint8_t status;
char *data;
QOSGraphObject *blk_object = obj;
QPCIDevice *pci_dev = blk_object->get_driver(blk_object, "pci-device");
QTestState *qts = global_qtest;
if (qpci_check_buggy_msi(pci_dev)) {
return;
}
qpci_msix_enable(pdev->pdev);
qvirtio_pci_set_msix_configuration_vector(pdev, t_alloc, 0);
features = qvirtio_get_features(dev);
features = features & ~(QVIRTIO_F_BAD_FEATURE |
(1u << VIRTIO_RING_F_INDIRECT_DESC) |
(1u << VIRTIO_F_NOTIFY_ON_EMPTY) |
(1u << VIRTIO_BLK_F_SCSI));
qvirtio_set_features(dev, features);
capacity = qvirtio_config_readq(dev, 0);
g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512);
vq = qvirtqueue_setup(dev, t_alloc, 0);
qvirtqueue_pci_msix_setup(pdev, (QVirtQueuePCI *)vq, t_alloc, 1);
qvirtio_set_driver_ok(dev);
/* Write request */
req.type = VIRTIO_BLK_T_OUT;
req.ioprio = 1;
req.sector = 0;
req.data = g_malloc0(512);
strcpy(req.data, "TEST");
req_addr = virtio_blk_request(t_alloc, dev, &req, 512);
g_free(req.data);
free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true);
qvirtqueue_add(qts, vq, req_addr + 16, 512, false, true);
qvirtqueue_add(qts, vq, req_addr + 528, 1, true, false);
qvirtqueue_kick(qts, dev, vq, free_head);
qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL,
QVIRTIO_BLK_TIMEOUT_US);
/* Write request */
req.type = VIRTIO_BLK_T_OUT;
req.ioprio = 1;
req.sector = 1;
req.data = g_malloc0(512);
strcpy(req.data, "TEST");
req_addr = virtio_blk_request(t_alloc, dev, &req, 512);
g_free(req.data);
/* Notify after processing the third request */
qvirtqueue_set_used_event(qts, vq, 2);
free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true);
qvirtqueue_add(qts, vq, req_addr + 16, 512, false, true);
qvirtqueue_add(qts, vq, req_addr + 528, 1, true, false);
qvirtqueue_kick(qts, dev, vq, free_head);
write_head = free_head;
/* No notification expected */
status = qvirtio_wait_status_byte_no_isr(qts, dev,
vq, req_addr + 528,
QVIRTIO_BLK_TIMEOUT_US);
g_assert_cmpint(status, ==, 0);
guest_free(t_alloc, req_addr);
/* Read request */
req.type = VIRTIO_BLK_T_IN;
req.ioprio = 1;
req.sector = 1;
req.data = g_malloc0(512);
req_addr = virtio_blk_request(t_alloc, dev, &req, 512);
g_free(req.data);
free_head = qvirtqueue_add(qts, vq, req_addr, 16, false, true);
qvirtqueue_add(qts, vq, req_addr + 16, 512, true, true);
qvirtqueue_add(qts, vq, req_addr + 528, 1, true, false);
qvirtqueue_kick(qts, dev, vq, free_head);
/* We get just one notification for both requests */
qvirtio_wait_used_elem(qts, dev, vq, write_head, NULL,
QVIRTIO_BLK_TIMEOUT_US);
g_assert(qvirtqueue_get_buf(qts, vq, &desc_idx, NULL));
g_assert_cmpint(desc_idx, ==, free_head);
status = readb(req_addr + 528);
g_assert_cmpint(status, ==, 0);
data = g_malloc0(512);
memread(req_addr + 16, data, 512);
g_assert_cmpstr(data, ==, "TEST");
g_free(data);
guest_free(t_alloc, req_addr);
/* End test */
qpci_msix_disable(pdev->pdev);
qvirtqueue_cleanup(dev->bus, vq, t_alloc);
}
static void pci_hotplug(void *obj, void *data, QGuestAllocator *t_alloc)
{
QVirtioPCIDevice *dev1 = obj;
QVirtioPCIDevice *dev;
QTestState *qts = dev1->pdev->bus->qts;
/* plug secondary disk */
qtest_qmp_device_add(qts, "virtio-blk-pci", "drv1",
"{'addr': %s, 'drive': 'drive1'}",
stringify(PCI_SLOT_HP) ".0");
dev = virtio_pci_new(dev1->pdev->bus,
&(QPCIAddress) { .devfn = QPCI_DEVFN(PCI_SLOT_HP, 0) });
g_assert_nonnull(dev);
g_assert_cmpint(dev->vdev.device_type, ==, VIRTIO_ID_BLOCK);
qvirtio_pci_device_disable(dev);
qos_object_destroy((QOSGraphObject *)dev);
/* unplug secondary disk */
qpci_unplug_acpi_device_test(qts, "drv1", PCI_SLOT_HP);
}
/*
* Check that setting the vring addr on a non-existent virtqueue does
* not crash.
*/
static void test_nonexistent_virtqueue(void *obj, void *data,
QGuestAllocator *t_alloc)
{
QVirtioBlkPCI *blk = obj;
QVirtioPCIDevice *pdev = &blk->pci_vdev;
QPCIBar bar0;
QPCIDevice *dev;
dev = qpci_device_find(pdev->pdev->bus, QPCI_DEVFN(4, 0));
g_assert(dev != NULL);
qpci_device_enable(dev);
bar0 = qpci_iomap(dev, 0, NULL);
qpci_io_writeb(dev, bar0, VIRTIO_PCI_QUEUE_SEL, 2);
qpci_io_writel(dev, bar0, VIRTIO_PCI_QUEUE_PFN, 1);
g_free(dev);
}
static void resize(void *obj, void *data, QGuestAllocator *t_alloc)
{
QVirtioBlk *blk_if = obj;
QVirtioDevice *dev = blk_if->vdev;
int n_size = TEST_IMAGE_SIZE / 2;
uint64_t capacity;
QVirtQueue *vq;
QTestState *qts = global_qtest;
vq = test_basic(dev, t_alloc);
qmp_discard_response("{ 'execute': 'block_resize', "
" 'arguments': { 'device': 'drive0', "
" 'size': %d } }", n_size);
qvirtio_wait_queue_isr(qts, dev, vq, QVIRTIO_BLK_TIMEOUT_US);
capacity = qvirtio_config_readq(dev, 0);
g_assert_cmpint(capacity, ==, n_size / 512);
qvirtqueue_cleanup(dev->bus, vq, t_alloc);
}
static void *virtio_blk_test_setup(GString *cmd_line, void *arg)
{
char *tmp_path = drive_create();
g_string_append_printf(cmd_line,
" -drive if=none,id=drive0,file=%s,"
"format=raw,auto-read-only=off "
"-drive if=none,id=drive1,file=null-co://,"
"file.read-zeroes=on,format=raw ",
tmp_path);
return arg;
}
static void register_virtio_blk_test(void)
{
QOSGraphTestOptions opts = {
.before = virtio_blk_test_setup,
};
qos_add_test("indirect", "virtio-blk", indirect, &opts);
qos_add_test("config", "virtio-blk", config, &opts);
qos_add_test("basic", "virtio-blk", basic, &opts);
qos_add_test("resize", "virtio-blk", resize, &opts);
/* tests just for virtio-blk-pci */
qos_add_test("msix", "virtio-blk-pci", msix, &opts);
qos_add_test("idx", "virtio-blk-pci", idx, &opts);
qos_add_test("nxvirtq", "virtio-blk-pci",
test_nonexistent_virtqueue, &opts);
qos_add_test("hotplug", "virtio-blk-pci", pci_hotplug, &opts);
}
libqos_init(register_virtio_blk_test);
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