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virtio: features, tests

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libqos update with support for virtio 1.
 Packed ring support for virtio.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

virtio: features, tests

libqos update with support for virtio 1.
Packed ring support for virtio.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Fri 25 Oct 2019 12:47:59 BST
# gpg:                using RSA key 281F0DB8D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full]
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>" [full]
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* remotes/mst/tags/for_upstream: (25 commits)
  virtio: drop unused virtio_device_stop_ioeventfd() function
  libqos: add VIRTIO PCI 1.0 support
  libqos: extract Legacy virtio-pci.c code
  libqos: make the virtio-pci BAR index configurable
  libqos: expose common virtqueue setup/cleanup functions
  libqos: add MSI-X callbacks to QVirtioPCIDevice
  libqos: pass full QVirtQueue to set_queue_address()
  libqos: add iteration support to qpci_find_capability()
  libqos: access VIRTIO 1.0 vring in little-endian
  libqos: implement VIRTIO 1.0 FEATURES_OK step
  libqos: enforce Device Initialization order
  libqos: add missing virtio-9p feature negotiation
  tests/virtio-blk-test: set up virtqueue after feature negotiation
  virtio-scsi-test: add missing feature negotiation
  libqos: extend feature bits to 64-bit
  libqos: read QVIRTIO_MMIO_VERSION register
  tests/virtio-blk-test: read config space after feature negotiation
  virtio: add property to enable packed virtqueue
  vhost_net: enable packed ring support
  virtio: event suppression support for packed ring
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2019-10-28 13:32:40 +00:00
commit 9bb7350232
22 changed files with 1803 additions and 237 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
hw/block/virtio-blk.c
View File

@ -1052,7 +1052,7 @@ static void virtio_blk_save_device(VirtIODevice *vdev, QEMUFile *f)
qemu_put_be32(f, virtio_get_queue_index(req->vq));
}
qemu_put_virtqueue_element(f, &req->elem);
qemu_put_virtqueue_element(vdev, f, &req->elem);
req = req->next;
}
qemu_put_sbyte(f, 0);
@ -1206,10 +1206,15 @@ static void virtio_blk_device_unrealize(DeviceState *dev, Error **errp)
{
VirtIODevice *vdev = VIRTIO_DEVICE(dev);
VirtIOBlock *s = VIRTIO_BLK(dev);
VirtIOBlkConf *conf = &s->conf;
unsigned i;
blk_drain(s->blk);
virtio_blk_data_plane_destroy(s->dataplane);
s->dataplane = NULL;
for (i = 0; i < conf->num_queues; i++) {
virtio_del_queue(vdev, i);
}
qemu_del_vm_change_state_handler(s->change);
blockdev_mark_auto_del(s->blk);
virtio_cleanup(vdev);

2
hw/char/virtio-serial-bus.c
View File

@ -708,7 +708,7 @@ static void virtio_serial_save_device(VirtIODevice *vdev, QEMUFile *f)
if (elem_popped) {
qemu_put_be32s(f, &port->iov_idx);
qemu_put_be64s(f, &port->iov_offset);
qemu_put_virtqueue_element(f, port->elem);
qemu_put_virtqueue_element(vdev, f, port->elem);
}
}
}

2
hw/net/vhost_net.c
View File

@ -49,6 +49,7 @@ static const int kernel_feature_bits[] = {
VIRTIO_F_VERSION_1,
VIRTIO_NET_F_MTU,
VIRTIO_F_IOMMU_PLATFORM,
VIRTIO_F_RING_PACKED,
VHOST_INVALID_FEATURE_BIT
};
@ -74,6 +75,7 @@ static const int user_feature_bits[] = {
VIRTIO_NET_F_MRG_RXBUF,
VIRTIO_NET_F_MTU,
VIRTIO_F_IOMMU_PLATFORM,
VIRTIO_F_RING_PACKED,
/* This bit implies RARP isn't sent by QEMU out of band */
VIRTIO_NET_F_GUEST_ANNOUNCE,

3
hw/scsi/virtio-scsi.c
View File

@ -190,11 +190,12 @@ static void virtio_scsi_save_request(QEMUFile *f, SCSIRequest *sreq)
{
VirtIOSCSIReq *req = sreq->hba_private;
VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(req->dev);
VirtIODevice *vdev = VIRTIO_DEVICE(req->dev);
uint32_t n = virtio_get_queue_index(req->vq) - 2;
assert(n < vs->conf.num_queues);
qemu_put_be32s(f, &n);
qemu_put_virtqueue_element(f, &req->elem);
qemu_put_virtqueue_element(vdev, f, &req->elem);
}
static void *virtio_scsi_load_request(QEMUFile *f, SCSIRequest *sreq)

1
hw/virtio/virtio-rng.c
View File

@ -238,6 +238,7 @@ static void virtio_rng_device_unrealize(DeviceState *dev, Error **errp)
qemu_del_vm_change_state_handler(vrng->vmstate);
timer_del(vrng->rate_limit_timer);
timer_free(vrng->rate_limit_timer);
virtio_del_queue(vdev, 0);
virtio_cleanup(vdev);
}

1074
hw/virtio/virtio.c
View File

File diff suppressed because it is too large Load Diff

15
include/hw/virtio/virtio.h
View File

@ -59,6 +59,8 @@ typedef struct VirtQueue VirtQueue;
typedef struct VirtQueueElement
{
unsigned int index;
unsigned int len;
unsigned int ndescs;
unsigned int out_num;
unsigned int in_num;
hwaddr *in_addr;
@ -196,7 +198,8 @@ void virtqueue_map(VirtIODevice *vdev, VirtQueueElement *elem);
void *virtqueue_pop(VirtQueue *vq, size_t sz);
unsigned int virtqueue_drop_all(VirtQueue *vq);
void *qemu_get_virtqueue_element(VirtIODevice *vdev, QEMUFile *f, size_t sz);
void qemu_put_virtqueue_element(QEMUFile *f, VirtQueueElement *elem);
void qemu_put_virtqueue_element(VirtIODevice *vdev, QEMUFile *f,
VirtQueueElement *elem);
int virtqueue_avail_bytes(VirtQueue *vq, unsigned int in_bytes,
unsigned int out_bytes);
void virtqueue_get_avail_bytes(VirtQueue *vq, unsigned int *in_bytes,
@ -282,7 +285,9 @@ typedef struct VirtIORNGConf VirtIORNGConf;
DEFINE_PROP_BIT64("any_layout", _state, _field, \
VIRTIO_F_ANY_LAYOUT, true), \
DEFINE_PROP_BIT64("iommu_platform", _state, _field, \
VIRTIO_F_IOMMU_PLATFORM, false)
VIRTIO_F_IOMMU_PLATFORM, false), \
DEFINE_PROP_BIT64("packed", _state, _field, \
VIRTIO_F_RING_PACKED, false)
hwaddr virtio_queue_get_desc_addr(VirtIODevice *vdev, int n);
bool virtio_queue_enabled(VirtIODevice *vdev, int n);
@ -291,8 +296,9 @@ hwaddr virtio_queue_get_used_addr(VirtIODevice *vdev, int n);
hwaddr virtio_queue_get_desc_size(VirtIODevice *vdev, int n);
hwaddr virtio_queue_get_avail_size(VirtIODevice *vdev, int n);
hwaddr virtio_queue_get_used_size(VirtIODevice *vdev, int n);
uint16_t virtio_queue_get_last_avail_idx(VirtIODevice *vdev, int n);
void virtio_queue_set_last_avail_idx(VirtIODevice *vdev, int n, uint16_t idx);
unsigned int virtio_queue_get_last_avail_idx(VirtIODevice *vdev, int n);
void virtio_queue_set_last_avail_idx(VirtIODevice *vdev, int n,
unsigned int idx);
void virtio_queue_restore_last_avail_idx(VirtIODevice *vdev, int n);
void virtio_queue_invalidate_signalled_used(VirtIODevice *vdev, int n);
void virtio_queue_update_used_idx(VirtIODevice *vdev, int n);
@ -302,7 +308,6 @@ EventNotifier *virtio_queue_get_guest_notifier(VirtQueue *vq);
void virtio_queue_set_guest_notifier_fd_handler(VirtQueue *vq, bool assign,
bool with_irqfd);
int virtio_device_start_ioeventfd(VirtIODevice *vdev);
void virtio_device_stop_ioeventfd(VirtIODevice *vdev);
int virtio_device_grab_ioeventfd(VirtIODevice *vdev);
void virtio_device_release_ioeventfd(VirtIODevice *vdev);
bool virtio_device_ioeventfd_enabled(VirtIODevice *vdev);

1
tests/Makefile.include
View File

@ -723,6 +723,7 @@ qos-test-obj-y += tests/libqos/virtio-blk.o
qos-test-obj-y += tests/libqos/virtio-mmio.o
qos-test-obj-y += tests/libqos/virtio-net.o
qos-test-obj-y += tests/libqos/virtio-pci.o
qos-test-obj-y += tests/libqos/virtio-pci-modern.o
qos-test-obj-y += tests/libqos/virtio-rng.o
qos-test-obj-y += tests/libqos/virtio-scsi.o
qos-test-obj-y += tests/libqos/virtio-serial.o

30
tests/libqos/pci.c
View File

@ -115,10 +115,28 @@ void qpci_device_enable(QPCIDevice *dev)
g_assert_cmphex(cmd & PCI_COMMAND_MASTER, ==, PCI_COMMAND_MASTER);
}
uint8_t qpci_find_capability(QPCIDevice *dev, uint8_t id)
/**
* qpci_find_capability:
* @dev: the PCI device
* @id: the PCI Capability ID (PCI_CAP_ID_*)
* @start_addr: 0 to begin iteration or the last return value to continue
* iteration
*
* Iterate over the PCI Capabilities List.
*
* Returns: PCI Configuration Space offset of the capabililty structure or
* 0 if no further matching capability is found
*/
uint8_t qpci_find_capability(QPCIDevice *dev, uint8_t id, uint8_t start_addr)
{
uint8_t cap;
uint8_t addr = qpci_config_readb(dev, PCI_CAPABILITY_LIST);
uint8_t addr;
if (start_addr) {
addr = qpci_config_readb(dev, start_addr + PCI_CAP_LIST_NEXT);
} else {
addr = qpci_config_readb(dev, PCI_CAPABILITY_LIST);
}
do {
cap = qpci_config_readb(dev, addr);
@ -138,7 +156,7 @@ void qpci_msix_enable(QPCIDevice *dev)
uint8_t bir_table;
uint8_t bir_pba;
addr = qpci_find_capability(dev, PCI_CAP_ID_MSIX);
addr = qpci_find_capability(dev, PCI_CAP_ID_MSIX, 0);
g_assert_cmphex(addr, !=, 0);
val = qpci_config_readw(dev, addr + PCI_MSIX_FLAGS);
@ -167,7 +185,7 @@ void qpci_msix_disable(QPCIDevice *dev)
uint16_t val;
g_assert(dev->msix_enabled);
addr = qpci_find_capability(dev, PCI_CAP_ID_MSIX);
addr = qpci_find_capability(dev, PCI_CAP_ID_MSIX, 0);
g_assert_cmphex(addr, !=, 0);
val = qpci_config_readw(dev, addr + PCI_MSIX_FLAGS);
qpci_config_writew(dev, addr + PCI_MSIX_FLAGS,
@ -203,7 +221,7 @@ bool qpci_msix_masked(QPCIDevice *dev, uint16_t entry)
uint64_t vector_off = dev->msix_table_off + entry * PCI_MSIX_ENTRY_SIZE;
g_assert(dev->msix_enabled);
addr = qpci_find_capability(dev, PCI_CAP_ID_MSIX);
addr = qpci_find_capability(dev, PCI_CAP_ID_MSIX, 0);
g_assert_cmphex(addr, !=, 0);
val = qpci_config_readw(dev, addr + PCI_MSIX_FLAGS);
@ -221,7 +239,7 @@ uint16_t qpci_msix_table_size(QPCIDevice *dev)
uint8_t addr;
uint16_t control;
addr = qpci_find_capability(dev, PCI_CAP_ID_MSIX);
addr = qpci_find_capability(dev, PCI_CAP_ID_MSIX, 0);
g_assert_cmphex(addr, !=, 0);
control = qpci_config_readw(dev, addr + PCI_MSIX_FLAGS);

2
tests/libqos/pci.h
View File

@ -86,7 +86,7 @@ bool qpci_has_buggy_msi(QPCIDevice *dev);
bool qpci_check_buggy_msi(QPCIDevice *dev);
void qpci_device_enable(QPCIDevice *dev);
uint8_t qpci_find_capability(QPCIDevice *dev, uint8_t id);
uint8_t qpci_find_capability(QPCIDevice *dev, uint8_t id, uint8_t start_addr);
void qpci_msix_enable(QPCIDevice *dev);
void qpci_msix_disable(QPCIDevice *dev);
bool qpci_msix_pending(QPCIDevice *dev, uint16_t entry);

6
tests/libqos/virtio-9p.c
View File

@ -32,6 +32,12 @@ static void virtio_9p_cleanup(QVirtio9P *interface)
static void virtio_9p_setup(QVirtio9P *interface)
{
uint64_t features;
features = qvirtio_get_features(interface->vdev);
features &= ~(QVIRTIO_F_BAD_FEATURE | (1ull << VIRTIO_RING_F_EVENT_IDX));
qvirtio_set_features(interface->vdev, features);
interface->vq = qvirtqueue_setup(interface->vdev, alloc, 0);
qvirtio_set_driver_ok(interface->vdev);
}

38
tests/libqos/virtio-mmio.c
View File

@ -40,22 +40,38 @@ static uint64_t qvirtio_mmio_config_readq(QVirtioDevice *d, uint64_t off)
return qtest_readq(dev->qts, dev->addr + QVIRTIO_MMIO_DEVICE_SPECIFIC + off);
}
static uint32_t qvirtio_mmio_get_features(QVirtioDevice *d)
static uint64_t qvirtio_mmio_get_features(QVirtioDevice *d)
{
QVirtioMMIODevice *dev = container_of(d, QVirtioMMIODevice, vdev);
uint64_t lo;
uint64_t hi = 0;
qtest_writel(dev->qts, dev->addr + QVIRTIO_MMIO_HOST_FEATURES_SEL, 0);
return qtest_readl(dev->qts, dev->addr + QVIRTIO_MMIO_HOST_FEATURES);
lo = qtest_readl(dev->qts, dev->addr + QVIRTIO_MMIO_HOST_FEATURES);
if (dev->version >= 2) {
qtest_writel(dev->qts, dev->addr + QVIRTIO_MMIO_HOST_FEATURES_SEL, 1);
hi = qtest_readl(dev->qts, dev->addr + QVIRTIO_MMIO_HOST_FEATURES);
}
return (hi << 32) | lo;
}
static void qvirtio_mmio_set_features(QVirtioDevice *d, uint32_t features)
static void qvirtio_mmio_set_features(QVirtioDevice *d, uint64_t features)
{
QVirtioMMIODevice *dev = container_of(d, QVirtioMMIODevice, vdev);
dev->features = features;
qtest_writel(dev->qts, dev->addr + QVIRTIO_MMIO_GUEST_FEATURES_SEL, 0);
qtest_writel(dev->qts, dev->addr + QVIRTIO_MMIO_GUEST_FEATURES, features);
if (dev->version >= 2) {
qtest_writel(dev->qts, dev->addr + QVIRTIO_MMIO_GUEST_FEATURES_SEL, 1);
qtest_writel(dev->qts, dev->addr + QVIRTIO_MMIO_GUEST_FEATURES,
features >> 32);
}
}
static uint32_t qvirtio_mmio_get_guest_features(QVirtioDevice *d)
static uint64_t qvirtio_mmio_get_guest_features(QVirtioDevice *d)
{
QVirtioMMIODevice *dev = container_of(d, QVirtioMMIODevice, vdev);
return dev->features;
@ -127,9 +143,11 @@ static uint16_t qvirtio_mmio_get_queue_size(QVirtioDevice *d)
return (uint16_t)qtest_readl(dev->qts, dev->addr + QVIRTIO_MMIO_QUEUE_NUM_MAX);
}
static void qvirtio_mmio_set_queue_address(QVirtioDevice *d, uint32_t pfn)
static void qvirtio_mmio_set_queue_address(QVirtioDevice *d, QVirtQueue *vq)
{
QVirtioMMIODevice *dev = container_of(d, QVirtioMMIODevice, vdev);
uint64_t pfn = vq->desc / dev->page_size;
qtest_writel(dev->qts, dev->addr + QVIRTIO_MMIO_QUEUE_PFN, pfn);
}
@ -141,6 +159,7 @@ static QVirtQueue *qvirtio_mmio_virtqueue_setup(QVirtioDevice *d,
uint64_t addr;
vq = g_malloc0(sizeof(*vq));
vq->vdev = d;
qvirtio_mmio_queue_select(d, index);
qtest_writel(dev->qts, dev->addr + QVIRTIO_MMIO_QUEUE_ALIGN, dev->page_size);
@ -149,8 +168,8 @@ static QVirtQueue *qvirtio_mmio_virtqueue_setup(QVirtioDevice *d,
vq->free_head = 0;
vq->num_free = vq->size;
vq->align = dev->page_size;
vq->indirect = (dev->features & (1u << VIRTIO_RING_F_INDIRECT_DESC)) != 0;
vq->event = (dev->features & (1u << VIRTIO_RING_F_EVENT_IDX)) != 0;
vq->indirect = dev->features & (1ull << VIRTIO_RING_F_INDIRECT_DESC);
vq->event = dev->features & (1ull << VIRTIO_RING_F_EVENT_IDX);
qtest_writel(dev->qts, dev->addr + QVIRTIO_MMIO_QUEUE_NUM, vq->size);
@ -162,7 +181,7 @@ static QVirtQueue *qvirtio_mmio_virtqueue_setup(QVirtioDevice *d,
addr = guest_alloc(alloc, qvring_size(vq->size, dev->page_size));
qvring_init(dev->qts, alloc, vq, addr);
qvirtio_mmio_set_queue_address(d, vq->desc / dev->page_size);
qvirtio_mmio_set_queue_address(d, vq);
return vq;
}
@ -223,6 +242,9 @@ void qvirtio_mmio_init_device(QVirtioMMIODevice *dev, QTestState *qts,
magic = qtest_readl(qts, addr + QVIRTIO_MMIO_MAGIC_VALUE);
g_assert(magic == ('v' | 'i' << 8 | 'r' << 16 | 't' << 24));
dev->version = qtest_readl(qts, addr + QVIRTIO_MMIO_VERSION);
g_assert(dev->version == 1 || dev->version == 2);
dev->qts = qts;
dev->addr = addr;
dev->page_size = page_size;

1
tests/libqos/virtio-mmio.h
View File

@ -40,6 +40,7 @@ typedef struct QVirtioMMIODevice {
uint64_t addr;
uint32_t page_size;
uint32_t features; /* As it cannot be read later, save it */
uint32_t version;
} QVirtioMMIODevice;
extern const QVirtioBus qvirtio_mmio;

6
tests/libqos/virtio-net.c
View File

@ -44,11 +44,11 @@ static void virtio_net_setup(QVirtioNet *interface)
features = qvirtio_get_features(vdev);
features &= ~(QVIRTIO_F_BAD_FEATURE |
(1u << VIRTIO_RING_F_INDIRECT_DESC) |
(1u << VIRTIO_RING_F_EVENT_IDX));
(1ull << VIRTIO_RING_F_INDIRECT_DESC) |
(1ull << VIRTIO_RING_F_EVENT_IDX));
qvirtio_set_features(vdev, features);
if (features & (1u << VIRTIO_NET_F_MQ)) {
if (features & (1ull << VIRTIO_NET_F_MQ)) {
interface->n_queues = qvirtio_config_readw(vdev, 8) * 2;
} else {
interface->n_queues = 2;

443
tests/libqos/virtio-pci-modern.c Normal file
View File

@ -0,0 +1,443 @@
/*
* libqos VIRTIO 1.0 PCI driver
*
* Copyright (c) 2019 Red Hat, Inc
*
* 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 "standard-headers/linux/pci_regs.h"
#include "standard-headers/linux/virtio_pci.h"
#include "standard-headers/linux/virtio_config.h"
#include "virtio-pci-modern.h"
static uint8_t config_readb(QVirtioDevice *d, uint64_t addr)
{
QVirtioPCIDevice *dev = container_of(d, QVirtioPCIDevice, vdev);
return qpci_io_readb(dev->pdev, dev->bar, dev->device_cfg_offset + addr);
}
static uint16_t config_readw(QVirtioDevice *d, uint64_t addr)
{
QVirtioPCIDevice *dev = container_of(d, QVirtioPCIDevice, vdev);
return qpci_io_readw(dev->pdev, dev->bar, dev->device_cfg_offset + addr);
}
static uint32_t config_readl(QVirtioDevice *d, uint64_t addr)
{
QVirtioPCIDevice *dev = container_of(d, QVirtioPCIDevice, vdev);
return qpci_io_readl(dev->pdev, dev->bar, dev->device_cfg_offset + addr);
}
static uint64_t config_readq(QVirtioDevice *d, uint64_t addr)
{
QVirtioPCIDevice *dev = container_of(d, QVirtioPCIDevice, vdev);
return qpci_io_readq(dev->pdev, dev->bar, dev->device_cfg_offset + addr);
}
static uint64_t get_features(QVirtioDevice *d)
{
QVirtioPCIDevice *dev = container_of(d, QVirtioPCIDevice, vdev);
uint64_t lo, hi;
qpci_io_writel(dev->pdev, dev->bar, dev->common_cfg_offset +
offsetof(struct virtio_pci_common_cfg,
device_feature_select),
0);
lo = qpci_io_readl(dev->pdev, dev->bar, dev->common_cfg_offset +
offsetof(struct virtio_pci_common_cfg, device_feature));
qpci_io_writel(dev->pdev, dev->bar, dev->common_cfg_offset +
offsetof(struct virtio_pci_common_cfg,
device_feature_select),
1);
hi = qpci_io_readl(dev->pdev, dev->bar, dev->common_cfg_offset +
offsetof(struct virtio_pci_common_cfg, device_feature));
return (hi << 32) | lo;
}
static void set_features(QVirtioDevice *d, uint64_t features)
{
QVirtioPCIDevice *dev = container_of(d, QVirtioPCIDevice, vdev);
/* Drivers must enable VIRTIO 1.0 or else use the Legacy interface */
g_assert_cmphex(features & (1ull << VIRTIO_F_VERSION_1), !=, 0);
qpci_io_writel(dev->pdev, dev->bar, dev->common_cfg_offset +
offsetof(struct virtio_pci_common_cfg,
guest_feature_select),
0);
qpci_io_writel(dev->pdev, dev->bar, dev->common_cfg_offset +
offsetof(struct virtio_pci_common_cfg,
guest_feature),
features);
qpci_io_writel(dev->pdev, dev->bar, dev->common_cfg_offset +
offsetof(struct virtio_pci_common_cfg,
guest_feature_select),
1);
qpci_io_writel(dev->pdev, dev->bar, dev->common_cfg_offset +
offsetof(struct virtio_pci_common_cfg,
guest_feature),
features >> 32);
}
static uint64_t get_guest_features(QVirtioDevice *d)
{
QVirtioPCIDevice *dev = container_of(d, QVirtioPCIDevice, vdev);
uint64_t lo, hi;
qpci_io_writel(dev->pdev, dev->bar, dev->common_cfg_offset +
offsetof(struct virtio_pci_common_cfg,
guest_feature_select),
0);
lo = qpci_io_readl(dev->pdev, dev->bar, dev->common_cfg_offset +
offsetof(struct virtio_pci_common_cfg, guest_feature));
qpci_io_writel(dev->pdev, dev->bar, dev->common_cfg_offset +
offsetof(struct virtio_pci_common_cfg,
guest_feature_select),
1);
hi = qpci_io_readl(dev->pdev, dev->bar, dev->common_cfg_offset +
offsetof(struct virtio_pci_common_cfg, guest_feature));
return (hi << 32) | lo;
}
static uint8_t get_status(QVirtioDevice *d)
{
QVirtioPCIDevice *dev = container_of(d, QVirtioPCIDevice, vdev);
return qpci_io_readb(dev->pdev, dev->bar, dev->common_cfg_offset +
offsetof(struct virtio_pci_common_cfg,
device_status));
}
static void set_status(QVirtioDevice *d, uint8_t status)
{
QVirtioPCIDevice *dev = container_of(d, QVirtioPCIDevice, vdev);
return qpci_io_writeb(dev->pdev, dev->bar, dev->common_cfg_offset +
offsetof(struct virtio_pci_common_cfg,
device_status),
status);
}
static bool get_msix_status(QVirtioPCIDevice *dev, uint32_t msix_entry,
uint32_t msix_addr, uint32_t msix_data)
{
uint32_t data;
g_assert_cmpint(msix_entry, !=, -1);
if (qpci_msix_masked(dev->pdev, msix_entry)) {
/* No ISR checking should be done if masked, but read anyway */
return qpci_msix_pending(dev->pdev, msix_entry);
}
data = qtest_readl(dev->pdev->bus->qts, msix_addr);
if (data == msix_data) {
qtest_writel(dev->pdev->bus->qts, msix_addr, 0);
return true;
} else {
return false;
}
}
static bool get_queue_isr_status(QVirtioDevice *d, QVirtQueue *vq)
{
QVirtioPCIDevice *dev = container_of(d, QVirtioPCIDevice, vdev);
if (dev->pdev->msix_enabled) {
QVirtQueuePCI *vqpci = container_of(vq, QVirtQueuePCI, vq);
return get_msix_status(dev, vqpci->msix_entry, vqpci->msix_addr,
vqpci->msix_data);
}
return qpci_io_readb(dev->pdev, dev->bar, dev->isr_cfg_offset) & 1;
}
static bool get_config_isr_status(QVirtioDevice *d)
{
QVirtioPCIDevice *dev = container_of(d, QVirtioPCIDevice, vdev);
if (dev->pdev->msix_enabled) {
return get_msix_status(dev, dev->config_msix_entry,
dev->config_msix_addr, dev->config_msix_data);
}
return qpci_io_readb(dev->pdev, dev->bar, dev->isr_cfg_offset) & 2;
}
static void wait_config_isr_status(QVirtioDevice *d, gint64 timeout_us)
{
QVirtioPCIDevice *dev = container_of(d, QVirtioPCIDevice, vdev);
gint64 start_time = g_get_monotonic_time();
do {
g_assert(g_get_monotonic_time() - start_time <= timeout_us);
qtest_clock_step(dev->pdev->bus->qts, 100);
} while (!get_config_isr_status(d));
}
static void queue_select(QVirtioDevice *d, uint16_t index)
{
QVirtioPCIDevice *dev = container_of(d, QVirtioPCIDevice, vdev);
qpci_io_writew(dev->pdev, dev->bar, dev->common_cfg_offset +
offsetof(struct virtio_pci_common_cfg, queue_select),
index);
}
static uint16_t get_queue_size(QVirtioDevice *d)
{
QVirtioPCIDevice *dev = container_of(d, QVirtioPCIDevice, vdev);
return qpci_io_readw(dev->pdev, dev->bar, dev->common_cfg_offset +
offsetof(struct virtio_pci_common_cfg, queue_size));
}
static void set_queue_address(QVirtioDevice *d, QVirtQueue *vq)
{
QVirtioPCIDevice *dev = container_of(d, QVirtioPCIDevice, vdev);
qpci_io_writel(dev->pdev, dev->bar, dev->common_cfg_offset +
offsetof(struct virtio_pci_common_cfg, queue_desc_lo),
vq->desc);
qpci_io_writel(dev->pdev, dev->bar, dev->common_cfg_offset +
offsetof(struct virtio_pci_common_cfg, queue_desc_hi),
vq->desc >> 32);
qpci_io_writel(dev->pdev, dev->bar, dev->common_cfg_offset +
offsetof(struct virtio_pci_common_cfg, queue_avail_lo),
vq->avail);
qpci_io_writel(dev->pdev, dev->bar, dev->common_cfg_offset +
offsetof(struct virtio_pci_common_cfg, queue_avail_hi),
vq->avail >> 32);
qpci_io_writel(dev->pdev, dev->bar, dev->common_cfg_offset +
offsetof(struct virtio_pci_common_cfg, queue_used_lo),
vq->used);
qpci_io_writel(dev->pdev, dev->bar, dev->common_cfg_offset +
offsetof(struct virtio_pci_common_cfg, queue_used_hi),
vq->used >> 32);
}
static QVirtQueue *virtqueue_setup(QVirtioDevice *d, QGuestAllocator *alloc,
uint16_t index)
{
QVirtioPCIDevice *dev = container_of(d, QVirtioPCIDevice, vdev);
QVirtQueue *vq;
QVirtQueuePCI *vqpci;
uint16_t notify_off;
vq = qvirtio_pci_virtqueue_setup_common(d, alloc, index);
vqpci = container_of(vq, QVirtQueuePCI, vq);
notify_off = qpci_io_readw(dev->pdev, dev->bar, dev->common_cfg_offset +
offsetof(struct virtio_pci_common_cfg,
queue_notify_off));
vqpci->notify_offset = dev->notify_cfg_offset +
notify_off * dev->notify_off_multiplier;
qpci_io_writew(dev->pdev, dev->bar, dev->common_cfg_offset +
offsetof(struct virtio_pci_common_cfg, queue_enable), 1);
return vq;
}
static void virtqueue_kick(QVirtioDevice *d, QVirtQueue *vq)
{
QVirtioPCIDevice *dev = container_of(d, QVirtioPCIDevice, vdev);
QVirtQueuePCI *vqpci = container_of(vq, QVirtQueuePCI, vq);
qpci_io_writew(dev->pdev, dev->bar, vqpci->notify_offset, vq->index);
}
static const QVirtioBus qvirtio_pci_virtio_1 = {
.config_readb = config_readb,
.config_readw = config_readw,
.config_readl = config_readl,
.config_readq = config_readq,
.get_features = get_features,
.set_features = set_features,
.get_guest_features = get_guest_features,
.get_status = get_status,
.set_status = set_status,
.get_queue_isr_status = get_queue_isr_status,
.wait_config_isr_status = wait_config_isr_status,
.queue_select = queue_select,
.get_queue_size = get_queue_size,
.set_queue_address = set_queue_address,
.virtqueue_setup = virtqueue_setup,
.virtqueue_cleanup = qvirtio_pci_virtqueue_cleanup_common,
.virtqueue_kick = virtqueue_kick,
};
static void set_config_vector(QVirtioPCIDevice *d, uint16_t entry)
{
uint16_t vector;
qpci_io_writew(d->pdev, d->bar, d->common_cfg_offset +
offsetof(struct virtio_pci_common_cfg, msix_config), entry);
vector = qpci_io_readw(d->pdev, d->bar, d->common_cfg_offset +
offsetof(struct virtio_pci_common_cfg,
msix_config));
g_assert_cmphex(vector, !=, VIRTIO_MSI_NO_VECTOR);
}
static void set_queue_vector(QVirtioPCIDevice *d, uint16_t vq_idx,
uint16_t entry)
{
uint16_t vector;
queue_select(&d->vdev, vq_idx);
qpci_io_writew(d->pdev, d->bar, d->common_cfg_offset +
offsetof(struct virtio_pci_common_cfg, queue_msix_vector),
entry);
vector = qpci_io_readw(d->pdev, d->bar, d->common_cfg_offset +
offsetof(struct virtio_pci_common_cfg,
queue_msix_vector));
g_assert_cmphex(vector, !=, VIRTIO_MSI_NO_VECTOR);
}
static const QVirtioPCIMSIXOps qvirtio_pci_msix_ops_virtio_1 = {
.set_config_vector = set_config_vector,
.set_queue_vector = set_queue_vector,
};
static bool probe_device_type(QVirtioPCIDevice *dev)
{
uint16_t vendor_id;
uint16_t device_id;
/* "Drivers MUST match devices with the PCI Vendor ID 0x1AF4" */
vendor_id = qpci_config_readw(dev->pdev, PCI_VENDOR_ID);
if (vendor_id != 0x1af4) {
return false;
}
/*
* "Any PCI device with ... PCI Device ID 0x1000 through 0x107F inclusive
* is a virtio device"
*/
device_id = qpci_config_readw(dev->pdev, PCI_DEVICE_ID);
if (device_id < 0x1000 || device_id > 0x107f) {
return false;
}
/*
* "Devices MAY utilize a Transitional PCI Device ID range, 0x1000 to
* 0x103F depending on the device type"
*/
if (device_id < 0x1040) {
/*
* "Transitional devices MUST have the PCI Subsystem Device ID matching
* the Virtio Device ID"
*/
dev->vdev.device_type = qpci_config_readw(dev->pdev, PCI_SUBSYSTEM_ID);
} else {
/*
* "The PCI Device ID is calculated by adding 0x1040 to the Virtio
* Device ID"
*/
dev->vdev.device_type = device_id - 0x1040;
}
return true;
}
/* Find the first VIRTIO 1.0 PCI structure for a given type */
static bool find_structure(QVirtioPCIDevice *dev, uint8_t cfg_type,
uint8_t *bar, uint32_t *offset, uint32_t *length,
uint8_t *cfg_addr)
{
uint8_t addr = 0;
while ((addr = qpci_find_capability(dev->pdev, PCI_CAP_ID_VNDR,
addr)) != 0) {
uint8_t type;
type = qpci_config_readb(dev->pdev,
addr + offsetof(struct virtio_pci_cap, cfg_type));
if (type != cfg_type) {
continue;
}
*bar = qpci_config_readb(dev->pdev,
addr + offsetof(struct virtio_pci_cap, bar));
*offset = qpci_config_readl(dev->pdev,
addr + offsetof(struct virtio_pci_cap, offset));
*length = qpci_config_readl(dev->pdev,
addr + offsetof(struct virtio_pci_cap, length));
if (cfg_addr) {
*cfg_addr = addr;
}
return true;
}
return false;
}
static bool probe_device_layout(QVirtioPCIDevice *dev)
{
uint8_t bar;
uint8_t cfg_addr;
uint32_t length;
/*
* Due to the qpci_iomap() API we only support devices that put all
* structures in the same PCI BAR. Luckily this is true with QEMU.
*/
if (!find_structure(dev, VIRTIO_PCI_CAP_COMMON_CFG, &bar,
&dev->common_cfg_offset, &length, NULL)) {
return false;
}
dev->bar_idx = bar;
if (!find_structure(dev, VIRTIO_PCI_CAP_NOTIFY_CFG, &bar,
&dev->notify_cfg_offset, &length, &cfg_addr)) {
return false;
}
g_assert_cmphex(bar, ==, dev->bar_idx);
dev->notify_off_multiplier = qpci_config_readl(dev->pdev,
cfg_addr + offsetof(struct virtio_pci_notify_cap,
notify_off_multiplier));
if (!find_structure(dev, VIRTIO_PCI_CAP_ISR_CFG, &bar,
&dev->isr_cfg_offset, &length, NULL)) {
return false;
}
g_assert_cmphex(bar, ==, dev->bar_idx);
if (!find_structure(dev, VIRTIO_PCI_CAP_DEVICE_CFG, &bar,
&dev->device_cfg_offset, &length, NULL)) {
return false;
}
g_assert_cmphex(bar, ==, dev->bar_idx);
return true;
}
/* Probe a VIRTIO 1.0 device */
bool qvirtio_pci_init_virtio_1(QVirtioPCIDevice *dev)
{
if (!probe_device_type(dev)) {
return false;
}
if (!probe_device_layout(dev)) {
return false;
}
dev->vdev.bus = &qvirtio_pci_virtio_1;
dev->msix_ops = &qvirtio_pci_msix_ops_virtio_1;
dev->vdev.big_endian = false;
return true;
}

17
tests/libqos/virtio-pci-modern.h Normal file
View File

@ -0,0 +1,17 @@
/*
* libqos virtio PCI VIRTIO 1.0 definitions
*
* Copyright (c) 2019 Red Hat, Inc
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#ifndef LIBQOS_VIRTIO_PCI_MODERN_H
#define LIBQOS_VIRTIO_PCI_MODERN_H
#include "virtio-pci.h"
bool qvirtio_pci_init_virtio_1(QVirtioPCIDevice *dev);
#endif /* LIBQOS_VIRTIO_PCI_MODERN_H */

105
tests/libqos/virtio-pci.c
View File

@ -22,6 +22,8 @@
#include "hw/pci/pci.h"
#include "hw/pci/pci_regs.h"
#include "virtio-pci-modern.h"
/* virtio-pci is a superclass of all virtio-xxx-pci devices;
* the relation between virtio-pci and virtio-xxx-pci is implicit,
* and therefore virtio-pci does not produce virtio and is not
@ -35,14 +37,6 @@
* original qvirtio_pci_destructor and qvirtio_pci_start_hw.
*/
static inline bool qvirtio_pci_is_big_endian(QVirtioPCIDevice *dev)
{
QPCIBus *bus = dev->pdev->bus;
/* FIXME: virtio 1.0 is always little-endian */
return qtest_big_endian(bus->qts);
}
#define CONFIG_BASE(dev) (VIRTIO_PCI_CONFIG_OFF((dev)->pdev->msix_enabled))
static uint8_t qvirtio_pci_config_readb(QVirtioDevice *d, uint64_t off)
@ -55,8 +49,7 @@ static uint8_t qvirtio_pci_config_readb(QVirtioDevice *d, uint64_t off)
* but virtio ( < 1.0) is in guest order
* so with a big-endian guest the order has been reversed,
* reverse it again
* virtio-1.0 is always little-endian, like PCI, but this
* case will be managed inside qvirtio_pci_is_big_endian()
* virtio-1.0 is always little-endian, like PCI
*/
static uint16_t qvirtio_pci_config_readw(QVirtioDevice *d, uint64_t off)
@ -96,19 +89,19 @@ static uint64_t qvirtio_pci_config_readq(QVirtioDevice *d, uint64_t off)
return val;
}
static uint32_t qvirtio_pci_get_features(QVirtioDevice *d)
static uint64_t qvirtio_pci_get_features(QVirtioDevice *d)
{
QVirtioPCIDevice *dev = container_of(d, QVirtioPCIDevice, vdev);
return qpci_io_readl(dev->pdev, dev->bar, VIRTIO_PCI_HOST_FEATURES);
}
static void qvirtio_pci_set_features(QVirtioDevice *d, uint32_t features)
static void qvirtio_pci_set_features(QVirtioDevice *d, uint64_t features)
{
QVirtioPCIDevice *dev = container_of(d, QVirtioPCIDevice, vdev);
qpci_io_writel(dev->pdev, dev->bar, VIRTIO_PCI_GUEST_FEATURES, features);
}
static uint32_t qvirtio_pci_get_guest_features(QVirtioDevice *d)
static uint64_t qvirtio_pci_get_guest_features(QVirtioDevice *d)
{
QVirtioPCIDevice *dev = container_of(d, QVirtioPCIDevice, vdev);
return qpci_io_readl(dev->pdev, dev->bar, VIRTIO_PCI_GUEST_FEATURES);
@ -199,31 +192,35 @@ static uint16_t qvirtio_pci_get_queue_size(QVirtioDevice *d)
return qpci_io_readw(dev->pdev, dev->bar, VIRTIO_PCI_QUEUE_NUM);
}
static void qvirtio_pci_set_queue_address(QVirtioDevice *d, uint32_t pfn)
static void qvirtio_pci_set_queue_address(QVirtioDevice *d, QVirtQueue *vq)
{
QVirtioPCIDevice *dev = container_of(d, QVirtioPCIDevice, vdev);
uint64_t pfn = vq->desc / VIRTIO_PCI_VRING_ALIGN;
qpci_io_writel(dev->pdev, dev->bar, VIRTIO_PCI_QUEUE_PFN, pfn);
}
static QVirtQueue *qvirtio_pci_virtqueue_setup(QVirtioDevice *d,
QGuestAllocator *alloc, uint16_t index)
QVirtQueue *qvirtio_pci_virtqueue_setup_common(QVirtioDevice *d,
QGuestAllocator *alloc,
uint16_t index)
{
uint32_t feat;
uint64_t feat;
uint64_t addr;
QVirtQueuePCI *vqpci;
QVirtioPCIDevice *qvpcidev = container_of(d, QVirtioPCIDevice, vdev);
vqpci = g_malloc0(sizeof(*vqpci));
feat = qvirtio_pci_get_guest_features(d);
feat = d->bus->get_guest_features(d);
qvirtio_pci_queue_select(d, index);
d->bus->queue_select(d, index);
vqpci->vq.vdev = d;
vqpci->vq.index = index;
vqpci->vq.size = qvirtio_pci_get_queue_size(d);
vqpci->vq.size = d->bus->get_queue_size(d);
vqpci->vq.free_head = 0;
vqpci->vq.num_free = vqpci->vq.size;
vqpci->vq.align = VIRTIO_PCI_VRING_ALIGN;
vqpci->vq.indirect = (feat & (1u << VIRTIO_RING_F_INDIRECT_DESC)) != 0;
vqpci->vq.event = (feat & (1u << VIRTIO_RING_F_EVENT_IDX)) != 0;
vqpci->vq.indirect = feat & (1ull << VIRTIO_RING_F_INDIRECT_DESC);
vqpci->vq.event = feat & (1ull << VIRTIO_RING_F_EVENT_IDX);
vqpci->msix_entry = -1;
vqpci->msix_addr = 0;
@ -238,12 +235,12 @@ static QVirtQueue *qvirtio_pci_virtqueue_setup(QVirtioDevice *d,
addr = guest_alloc(alloc, qvring_size(vqpci->vq.size,
VIRTIO_PCI_VRING_ALIGN));
qvring_init(qvpcidev->pdev->bus->qts, alloc, &vqpci->vq, addr);
qvirtio_pci_set_queue_address(d, vqpci->vq.desc / VIRTIO_PCI_VRING_ALIGN);
d->bus->set_queue_address(d, &vqpci->vq);
return &vqpci->vq;
}
static void qvirtio_pci_virtqueue_cleanup(QVirtQueue *vq,
void qvirtio_pci_virtqueue_cleanup_common(QVirtQueue *vq,
QGuestAllocator *alloc)
{
QVirtQueuePCI *vqpci = container_of(vq, QVirtQueuePCI, vq);
@ -258,7 +255,7 @@ static void qvirtio_pci_virtqueue_kick(QVirtioDevice *d, QVirtQueue *vq)
qpci_io_writew(dev->pdev, dev->bar, VIRTIO_PCI_QUEUE_NOTIFY, vq->index);
}
const QVirtioBus qvirtio_pci = {
static const QVirtioBus qvirtio_pci_legacy = {
.config_readb = qvirtio_pci_config_readb,
.config_readw = qvirtio_pci_config_readw,
.config_readl = qvirtio_pci_config_readl,
@ -273,15 +270,40 @@ const QVirtioBus qvirtio_pci = {
.queue_select = qvirtio_pci_queue_select,
.get_queue_size = qvirtio_pci_get_queue_size,
.set_queue_address = qvirtio_pci_set_queue_address,
.virtqueue_setup = qvirtio_pci_virtqueue_setup,
.virtqueue_cleanup = qvirtio_pci_virtqueue_cleanup,
.virtqueue_setup = qvirtio_pci_virtqueue_setup_common,
.virtqueue_cleanup = qvirtio_pci_virtqueue_cleanup_common,
.virtqueue_kick = qvirtio_pci_virtqueue_kick,
};
static void qvirtio_pci_set_config_vector(QVirtioPCIDevice *d, uint16_t entry)
{
uint16_t vector;
qpci_io_writew(d->pdev, d->bar, VIRTIO_MSI_CONFIG_VECTOR, entry);
vector = qpci_io_readw(d->pdev, d->bar, VIRTIO_MSI_CONFIG_VECTOR);
g_assert_cmphex(vector, !=, VIRTIO_MSI_NO_VECTOR);
}
static void qvirtio_pci_set_queue_vector(QVirtioPCIDevice *d, uint16_t vq_idx,
uint16_t entry)
{
uint16_t vector;
qvirtio_pci_queue_select(&d->vdev, vq_idx);
qpci_io_writew(d->pdev, d->bar, VIRTIO_MSI_QUEUE_VECTOR, entry);
vector = qpci_io_readw(d->pdev, d->bar, VIRTIO_MSI_QUEUE_VECTOR);
g_assert_cmphex(vector, !=, VIRTIO_MSI_NO_VECTOR);
}
static const QVirtioPCIMSIXOps qvirtio_pci_msix_ops_legacy = {
.set_config_vector = qvirtio_pci_set_config_vector,
.set_queue_vector = qvirtio_pci_set_queue_vector,
};
void qvirtio_pci_device_enable(QVirtioPCIDevice *d)
{
qpci_device_enable(d->pdev);
d->bar = qpci_iomap(d->pdev, 0, NULL);
d->bar = qpci_iomap(d->pdev, d->bar_idx, NULL);
}
void qvirtio_pci_device_disable(QVirtioPCIDevice *d)
@ -292,7 +314,6 @@ void qvirtio_pci_device_disable(QVirtioPCIDevice *d)
void qvirtqueue_pci_msix_setup(QVirtioPCIDevice *d, QVirtQueuePCI *vqpci,
QGuestAllocator *alloc, uint16_t entry)
{
uint16_t vector;
uint32_t control;
uint64_t off;
@ -318,16 +339,12 @@ void qvirtqueue_pci_msix_setup(QVirtioPCIDevice *d, QVirtQueuePCI *vqpci,
off + PCI_MSIX_ENTRY_VECTOR_CTRL,
control & ~PCI_MSIX_ENTRY_CTRL_MASKBIT);
qvirtio_pci_queue_select(&d->vdev, vqpci->vq.index);
qpci_io_writew(d->pdev, d->bar, VIRTIO_MSI_QUEUE_VECTOR, entry);
vector = qpci_io_readw(d->pdev, d->bar, VIRTIO_MSI_QUEUE_VECTOR);
g_assert_cmphex(vector, !=, VIRTIO_MSI_NO_VECTOR);
d->msix_ops->set_queue_vector(d, vqpci->vq.index, entry);
}
void qvirtio_pci_set_msix_configuration_vector(QVirtioPCIDevice *d,
QGuestAllocator *alloc, uint16_t entry)
{
uint16_t vector;
uint32_t control;
uint64_t off;
@ -355,9 +372,7 @@ void qvirtio_pci_set_msix_configuration_vector(QVirtioPCIDevice *d,
off + PCI_MSIX_ENTRY_VECTOR_CTRL,
control & ~PCI_MSIX_ENTRY_CTRL_MASKBIT);
qpci_io_writew(d->pdev, d->bar, VIRTIO_MSI_CONFIG_VECTOR, entry);
vector = qpci_io_readw(d->pdev, d->bar, VIRTIO_MSI_CONFIG_VECTOR);
g_assert_cmphex(vector, !=, VIRTIO_MSI_NO_VECTOR);
d->msix_ops->set_config_vector(d, entry);
}
void qvirtio_pci_destructor(QOSGraphObject *obj)
@ -374,15 +389,23 @@ void qvirtio_pci_start_hw(QOSGraphObject *obj)
qvirtio_start_device(&dev->vdev);
}
static void qvirtio_pci_init_legacy(QVirtioPCIDevice *dev)
{
dev->vdev.device_type = qpci_config_readw(dev->pdev, PCI_SUBSYSTEM_ID);
dev->bar_idx = 0;
dev->vdev.bus = &qvirtio_pci_legacy;
dev->msix_ops = &qvirtio_pci_msix_ops_legacy;
dev->vdev.big_endian = qtest_big_endian(dev->pdev->bus->qts);
}
static void qvirtio_pci_init_from_pcidev(QVirtioPCIDevice *dev, QPCIDevice *pci_dev)
{
dev->pdev = pci_dev;
dev->vdev.device_type = qpci_config_readw(pci_dev, PCI_SUBSYSTEM_ID);
dev->config_msix_entry = -1;
dev->vdev.bus = &qvirtio_pci;
dev->vdev.big_endian = qvirtio_pci_is_big_endian(dev);
if (!qvirtio_pci_init_virtio_1(dev)) {
qvirtio_pci_init_legacy(dev);
}
/* each virtio-xxx-pci device should override at least this function */
dev->obj.get_driver = NULL;

34
tests/libqos/virtio-pci.h
View File

@ -14,24 +14,46 @@
#include "libqos/pci.h"
#include "libqos/qgraph.h"
typedef struct QVirtioPCIMSIXOps QVirtioPCIMSIXOps;
typedef struct QVirtioPCIDevice {
QOSGraphObject obj;
QVirtioDevice vdev;
QPCIDevice *pdev;
QPCIBar bar;
const QVirtioPCIMSIXOps *msix_ops;
uint16_t config_msix_entry;
uint64_t config_msix_addr;
uint32_t config_msix_data;
int bar_idx;
/* VIRTIO 1.0 */
uint32_t common_cfg_offset;
uint32_t notify_cfg_offset;
uint32_t notify_off_multiplier;
uint32_t isr_cfg_offset;
uint32_t device_cfg_offset;
} QVirtioPCIDevice;
struct QVirtioPCIMSIXOps {
/* Set the Configuration Vector for MSI-X */
void (*set_config_vector)(QVirtioPCIDevice *d, uint16_t entry);
/* Set the Queue Vector for MSI-X */
void (*set_queue_vector)(QVirtioPCIDevice *d, uint16_t vq_idx,
uint16_t entry);
};
typedef struct QVirtQueuePCI {
QVirtQueue vq;
uint16_t msix_entry;
uint64_t msix_addr;
uint32_t msix_data;
} QVirtQueuePCI;
extern const QVirtioBus qvirtio_pci;
/* VIRTIO 1.0 */
uint64_t notify_offset;
} QVirtQueuePCI;
void virtio_pci_init(QVirtioPCIDevice *dev, QPCIBus *bus, QPCIAddress * addr);
QVirtioPCIDevice *virtio_pci_new(QPCIBus *bus, QPCIAddress * addr);
@ -53,4 +75,12 @@ void qvirtio_pci_set_msix_configuration_vector(QVirtioPCIDevice *d,
QGuestAllocator *alloc, uint16_t entry);
void qvirtqueue_pci_msix_setup(QVirtioPCIDevice *d, QVirtQueuePCI *vqpci,
QGuestAllocator *alloc, uint16_t entry);
/* Used by Legacy and Modern virtio-pci code */
QVirtQueue *qvirtio_pci_virtqueue_setup_common(QVirtioDevice *d,
QGuestAllocator *alloc,
uint16_t index);
void qvirtio_pci_virtqueue_cleanup_common(QVirtQueue *vq,
QGuestAllocator *alloc);
#endif

160
tests/libqos/virtio.c
View File

@ -8,45 +8,122 @@
*/
#include "qemu/osdep.h"
#include "qemu/bswap.h"
#include "libqtest.h"
#include "libqos/virtio.h"
#include "standard-headers/linux/virtio_config.h"
#include "standard-headers/linux/virtio_ring.h"
/*
* qtest_readX/writeX() functions transfer host endian from/to guest endian.
* This works great for Legacy VIRTIO devices where we need guest endian
* accesses. For VIRTIO 1.0 the vring is little-endian so the automatic guest
* endianness conversion is not wanted.
*
* The following qvirtio_readX/writeX() functions handle Legacy and VIRTIO 1.0
* accesses seamlessly.
*/
static uint16_t qvirtio_readw(QVirtioDevice *d, QTestState *qts, uint64_t addr)
{
uint16_t val = qtest_readw(qts, addr);
if (d->features & (1ull << VIRTIO_F_VERSION_1) && qtest_big_endian(qts)) {
val = bswap16(val);
}
return val;
}
static uint32_t qvirtio_readl(QVirtioDevice *d, QTestState *qts, uint64_t addr)
{
uint32_t val = qtest_readl(qts, addr);
if (d->features & (1ull << VIRTIO_F_VERSION_1) && qtest_big_endian(qts)) {
val = bswap32(val);
}
return val;
}
static void qvirtio_writew(QVirtioDevice *d, QTestState *qts,
uint64_t addr, uint16_t val)
{
if (d->features & (1ull << VIRTIO_F_VERSION_1) && qtest_big_endian(qts)) {
val = bswap16(val);
}
qtest_writew(qts, addr, val);
}
static void qvirtio_writel(QVirtioDevice *d, QTestState *qts,
uint64_t addr, uint32_t val)
{
if (d->features & (1ull << VIRTIO_F_VERSION_1) && qtest_big_endian(qts)) {
val = bswap32(val);
}
qtest_writel(qts, addr, val);
}
static void qvirtio_writeq(QVirtioDevice *d, QTestState *qts,
uint64_t addr, uint64_t val)
{
if (d->features & (1ull << VIRTIO_F_VERSION_1) && qtest_big_endian(qts)) {
val = bswap64(val);
}
qtest_writeq(qts, addr, val);
}
uint8_t qvirtio_config_readb(QVirtioDevice *d, uint64_t addr)
{
g_assert_true(d->features_negotiated);
return d->bus->config_readb(d, addr);
}
uint16_t qvirtio_config_readw(QVirtioDevice *d, uint64_t addr)
{
g_assert_true(d->features_negotiated);
return d->bus->config_readw(d, addr);
}
uint32_t qvirtio_config_readl(QVirtioDevice *d, uint64_t addr)
{
g_assert_true(d->features_negotiated);
return d->bus->config_readl(d, addr);
}
uint64_t qvirtio_config_readq(QVirtioDevice *d, uint64_t addr)
{
g_assert_true(d->features_negotiated);
return d->bus->config_readq(d, addr);
}
uint32_t qvirtio_get_features(QVirtioDevice *d)
uint64_t qvirtio_get_features(QVirtioDevice *d)
{
return d->bus->get_features(d);
}
void qvirtio_set_features(QVirtioDevice *d, uint32_t features)
void qvirtio_set_features(QVirtioDevice *d, uint64_t features)
{
d->features = features;
d->bus->set_features(d, features);
/*
* This could be a separate function for drivers that want to access
* configuration space before setting FEATURES_OK, but no existing users
* need that and it's less code for callers if this is done implicitly.
*/
if (features & (1ull << VIRTIO_F_VERSION_1)) {
uint8_t status = d->bus->get_status(d) |
VIRTIO_CONFIG_S_FEATURES_OK;
d->bus->set_status(d, status);
g_assert_cmphex(d->bus->get_status(d), ==, status);
}
d->features_negotiated = true;
}
QVirtQueue *qvirtqueue_setup(QVirtioDevice *d,
QGuestAllocator *alloc, uint16_t index)
{
g_assert_true(d->features_negotiated);
return d->bus->virtqueue_setup(d, alloc, index);
}
@ -60,6 +137,7 @@ void qvirtio_reset(QVirtioDevice *d)
{
d->bus->set_status(d, 0);
g_assert_cmphex(d->bus->get_status(d), ==, 0);
d->features_negotiated = false;
}
void qvirtio_set_acknowledge(QVirtioDevice *d)
@ -79,7 +157,9 @@ void qvirtio_set_driver_ok(QVirtioDevice *d)
{
d->bus->set_status(d, d->bus->get_status(d) | VIRTIO_CONFIG_S_DRIVER_OK);
g_assert_cmphex(d->bus->get_status(d), ==, VIRTIO_CONFIG_S_DRIVER_OK |
VIRTIO_CONFIG_S_DRIVER | VIRTIO_CONFIG_S_ACKNOWLEDGE);
VIRTIO_CONFIG_S_DRIVER | VIRTIO_CONFIG_S_ACKNOWLEDGE |
(d->features & (1ull << VIRTIO_F_VERSION_1) ?
VIRTIO_CONFIG_S_FEATURES_OK : 0));
}
void qvirtio_wait_queue_isr(QTestState *qts, QVirtioDevice *d,
@ -166,23 +246,23 @@ void qvring_init(QTestState *qts, const QGuestAllocator *alloc, QVirtQueue *vq,
for (i = 0; i < vq->size - 1; i++) {
/* vq->desc[i].addr */
qtest_writeq(qts, vq->desc + (16 * i), 0);
qvirtio_writeq(vq->vdev, qts, vq->desc + (16 * i), 0);
/* vq->desc[i].next */
qtest_writew(qts, vq->desc + (16 * i) + 14, i + 1);
qvirtio_writew(vq->vdev, qts, vq->desc + (16 * i) + 14, i + 1);
}
/* vq->avail->flags */
qtest_writew(qts, vq->avail, 0);
qvirtio_writew(vq->vdev, qts, vq->avail, 0);
/* vq->avail->idx */
qtest_writew(qts, vq->avail + 2, 0);
qvirtio_writew(vq->vdev, qts, vq->avail + 2, 0);
/* vq->avail->used_event */
qtest_writew(qts, vq->avail + 4 + (2 * vq->size), 0);
qvirtio_writew(vq->vdev, qts, vq->avail + 4 + (2 * vq->size), 0);
/* vq->used->flags */
qtest_writew(qts, vq->used, 0);
qvirtio_writew(vq->vdev, qts, vq->used, 0);
/* vq->used->avail_event */
qtest_writew(qts, vq->used + 2 + sizeof(struct vring_used_elem) * vq->size,
0);
qvirtio_writew(vq->vdev, qts, vq->used + 2 +
sizeof(struct vring_used_elem) * vq->size, 0);
}
QVRingIndirectDesc *qvring_indirect_desc_setup(QTestState *qs, QVirtioDevice *d,
@ -198,35 +278,39 @@ QVRingIndirectDesc *qvring_indirect_desc_setup(QTestState *qs, QVirtioDevice *d,
for (i = 0; i < elem - 1; ++i) {
/* indirect->desc[i].addr */
qtest_writeq(qs, indirect->desc + (16 * i), 0);
qvirtio_writeq(d, qs, indirect->desc + (16 * i), 0);
/* indirect->desc[i].flags */
qtest_writew(qs, indirect->desc + (16 * i) + 12, VRING_DESC_F_NEXT);
qvirtio_writew(d, qs, indirect->desc + (16 * i) + 12,
VRING_DESC_F_NEXT);
/* indirect->desc[i].next */
qtest_writew(qs, indirect->desc + (16 * i) + 14, i + 1);
qvirtio_writew(d, qs, indirect->desc + (16 * i) + 14, i + 1);
}
return indirect;
}
void qvring_indirect_desc_add(QTestState *qts, QVRingIndirectDesc *indirect,
void qvring_indirect_desc_add(QVirtioDevice *d, QTestState *qts,
QVRingIndirectDesc *indirect,
uint64_t data, uint32_t len, bool write)
{
uint16_t flags;
g_assert_cmpint(indirect->index, <, indirect->elem);
flags = qtest_readw(qts, indirect->desc + (16 * indirect->index) + 12);
flags = qvirtio_readw(d, qts, indirect->desc +
(16 * indirect->index) + 12);
if (write) {
flags |= VRING_DESC_F_WRITE;
}
/* indirect->desc[indirect->index].addr */
qtest_writeq(qts, indirect->desc + (16 * indirect->index), data);
qvirtio_writeq(d, qts, indirect->desc + (16 * indirect->index), data);
/* indirect->desc[indirect->index].len */
qtest_writel(qts, indirect->desc + (16 * indirect->index) + 8, len);
qvirtio_writel(d, qts, indirect->desc + (16 * indirect->index) + 8, len);
/* indirect->desc[indirect->index].flags */
qtest_writew(qts, indirect->desc + (16 * indirect->index) + 12, flags);
qvirtio_writew(d, qts, indirect->desc + (16 * indirect->index) + 12,
flags);
indirect->index++;
}
@ -246,11 +330,11 @@ uint32_t qvirtqueue_add(QTestState *qts, QVirtQueue *vq, uint64_t data,
}
/* vq->desc[vq->free_head].addr */
qtest_writeq(qts, vq->desc + (16 * vq->free_head), data);
qvirtio_writeq(vq->vdev, qts, vq->desc + (16 * vq->free_head), data);
/* vq->desc[vq->free_head].len */
qtest_writel(qts, vq->desc + (16 * vq->free_head) + 8, len);
qvirtio_writel(vq->vdev, qts, vq->desc + (16 * vq->free_head) + 8, len);
/* vq->desc[vq->free_head].flags */
qtest_writew(qts, vq->desc + (16 * vq->free_head) + 12, flags);
qvirtio_writew(vq->vdev, qts, vq->desc + (16 * vq->free_head) + 12, flags);
return vq->free_head++; /* Return and increase, in this order */
}
@ -265,13 +349,14 @@ uint32_t qvirtqueue_add_indirect(QTestState *qts, QVirtQueue *vq,
vq->num_free--;
/* vq->desc[vq->free_head].addr */
qtest_writeq(qts, vq->desc + (16 * vq->free_head), indirect->desc);
qvirtio_writeq(vq->vdev, qts, vq->desc + (16 * vq->free_head),
indirect->desc);
/* vq->desc[vq->free_head].len */
qtest_writel(qts, vq->desc + (16 * vq->free_head) + 8,
sizeof(struct vring_desc) * indirect->elem);
qvirtio_writel(vq->vdev, qts, vq->desc + (16 * vq->free_head) + 8,
sizeof(struct vring_desc) * indirect->elem);
/* vq->desc[vq->free_head].flags */
qtest_writew(qts, vq->desc + (16 * vq->free_head) + 12,
VRING_DESC_F_INDIRECT);
qvirtio_writew(vq->vdev, qts, vq->desc + (16 * vq->free_head) + 12,
VRING_DESC_F_INDIRECT);
return vq->free_head++; /* Return and increase, in this order */
}
@ -280,21 +365,21 @@ void qvirtqueue_kick(QTestState *qts, QVirtioDevice *d, QVirtQueue *vq,
uint32_t free_head)
{
/* vq->avail->idx */
uint16_t idx = qtest_readw(qts, vq->avail + 2);
uint16_t idx = qvirtio_readw(d, qts, vq->avail + 2);
/* vq->used->flags */
uint16_t flags;
/* vq->used->avail_event */
uint16_t avail_event;
/* vq->avail->ring[idx % vq->size] */
qtest_writew(qts, vq->avail + 4 + (2 * (idx % vq->size)), free_head);
qvirtio_writew(d, qts, vq->avail + 4 + (2 * (idx % vq->size)), free_head);
/* vq->avail->idx */
qtest_writew(qts, vq->avail + 2, idx + 1);
qvirtio_writew(d, qts, vq->avail + 2, idx + 1);
/* Must read after idx is updated */
flags = qtest_readw(qts, vq->avail);
avail_event = qtest_readw(qts, vq->used + 4 +
sizeof(struct vring_used_elem) * vq->size);
flags = qvirtio_readw(d, qts, vq->avail);
avail_event = qvirtio_readw(d, qts, vq->used + 4 +
sizeof(struct vring_used_elem) * vq->size);
/* < 1 because we add elements to avail queue one by one */
if ((flags & VRING_USED_F_NO_NOTIFY) == 0 &&
@ -319,7 +404,8 @@ bool qvirtqueue_get_buf(QTestState *qts, QVirtQueue *vq, uint32_t *desc_idx,
uint16_t idx;
uint64_t elem_addr, addr;
idx = qtest_readw(qts, vq->used + offsetof(struct vring_used, idx));
idx = qvirtio_readw(vq->vdev, qts,
vq->used + offsetof(struct vring_used, idx));
if (idx == vq->last_used_idx) {
return false;
}
@ -331,12 +417,12 @@ bool qvirtqueue_get_buf(QTestState *qts, QVirtQueue *vq, uint32_t *desc_idx,
if (desc_idx) {
addr = elem_addr + offsetof(struct vring_used_elem, id);
*desc_idx = qtest_readl(qts, addr);
*desc_idx = qvirtio_readl(vq->vdev, qts, addr);
}
if (len) {
addr = elem_addr + offsetof(struct vring_used_elem, len);
*len = qtest_readw(qts, addr);
*len = qvirtio_readw(vq->vdev, qts, addr);
}
vq->last_used_idx++;
@ -348,7 +434,7 @@ void qvirtqueue_set_used_event(QTestState *qts, QVirtQueue *vq, uint16_t idx)
g_assert(vq->event);
/* vq->avail->used_event */
qtest_writew(qts, vq->avail + 4 + (2 * vq->size), idx);
qvirtio_writew(vq->vdev, qts, vq->avail + 4 + (2 * vq->size), idx);
}
void qvirtio_start_device(QVirtioDevice *vdev)

19
tests/libqos/virtio.h
View File

@ -13,7 +13,7 @@
#include "libqos/malloc.h"
#include "standard-headers/linux/virtio_ring.h"
#define QVIRTIO_F_BAD_FEATURE 0x40000000
#define QVIRTIO_F_BAD_FEATURE 0x40000000ull
typedef struct QVirtioBus QVirtioBus;
@ -23,9 +23,11 @@ typedef struct QVirtioDevice {
uint16_t device_type;
uint64_t features;
bool big_endian;
bool features_negotiated;
} QVirtioDevice;
typedef struct QVirtQueue {
QVirtioDevice *vdev;
uint64_t desc; /* This points to an array of struct vring_desc */
uint64_t avail; /* This points to a struct vring_avail */
uint64_t used; /* This points to a struct vring_used */
@ -52,13 +54,13 @@ struct QVirtioBus {
uint64_t (*config_readq)(QVirtioDevice *d, uint64_t addr);
/* Get features of the device */
uint32_t (*get_features)(QVirtioDevice *d);
uint64_t (*get_features)(QVirtioDevice *d);
/* Set features of the device */
void (*set_features)(QVirtioDevice *d, uint32_t features);
void (*set_features)(QVirtioDevice *d, uint64_t features);
/* Get features of the guest */
uint32_t (*get_guest_features)(QVirtioDevice *d);
uint64_t (*get_guest_features)(QVirtioDevice *d);
/* Get status of the device */
uint8_t (*get_status)(QVirtioDevice *d);
@ -79,7 +81,7 @@ struct QVirtioBus {
uint16_t (*get_queue_size)(QVirtioDevice *d);
/* Set the address of the selected queue */
void (*set_queue_address)(QVirtioDevice *d, uint32_t pfn);
void (*set_queue_address)(QVirtioDevice *d, QVirtQueue *vq);
/* Setup the virtqueue specified by index */
QVirtQueue *(*virtqueue_setup)(QVirtioDevice *d, QGuestAllocator *alloc,
@ -103,8 +105,8 @@ uint8_t qvirtio_config_readb(QVirtioDevice *d, uint64_t addr);
uint16_t qvirtio_config_readw(QVirtioDevice *d, uint64_t addr);
uint32_t qvirtio_config_readl(QVirtioDevice *d, uint64_t addr);
uint64_t qvirtio_config_readq(QVirtioDevice *d, uint64_t addr);
uint32_t qvirtio_get_features(QVirtioDevice *d);
void qvirtio_set_features(QVirtioDevice *d, uint32_t features);
uint64_t qvirtio_get_features(QVirtioDevice *d);
void qvirtio_set_features(QVirtioDevice *d, uint64_t features);
bool qvirtio_is_big_endian(QVirtioDevice *d);
void qvirtio_reset(QVirtioDevice *d);
@ -134,7 +136,8 @@ void qvring_init(QTestState *qts, const QGuestAllocator *alloc, QVirtQueue *vq,
QVRingIndirectDesc *qvring_indirect_desc_setup(QTestState *qs, QVirtioDevice *d,
QGuestAllocator *alloc,
uint16_t elem);
void qvring_indirect_desc_add(QTestState *qts, QVRingIndirectDesc *indirect,
void qvring_indirect_desc_add(QVirtioDevice *d, QTestState *qts,
QVRingIndirectDesc *indirect,
uint64_t data, uint32_t len, bool write);
uint32_t qvirtqueue_add(QTestState *qts, QVirtQueue *vq, uint64_t data,
uint32_t len, bool write, bool next);

66
tests/virtio-blk-test.c
View File

@ -113,21 +113,18 @@ static uint64_t virtio_blk_request(QGuestAllocator *alloc, QVirtioDevice *d,
return addr;
}
static void test_basic(QVirtioDevice *dev, QGuestAllocator *alloc,
QVirtQueue *vq)
/* 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;
uint32_t features;
uint64_t features;
uint32_t free_head;
uint8_t status;
char *data;
QTestState *qts = global_qtest;
capacity = qvirtio_config_readq(dev, 0);
g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512);
QVirtQueue *vq;
features = qvirtio_get_features(dev);
features = features & ~(QVIRTIO_F_BAD_FEATURE |
@ -136,6 +133,11 @@ static void test_basic(QVirtioDevice *dev, QGuestAllocator *alloc,
(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 */
@ -332,14 +334,16 @@ static void test_basic(QVirtioDevice *dev, QGuestAllocator *alloc,
guest_free(alloc, req_addr);
}
return vq;
}
static void basic(void *obj, void *data, QGuestAllocator *t_alloc)
{
QVirtioBlk *blk_if = obj;
QVirtQueue *vq;
vq = qvirtqueue_setup(blk_if->vdev, t_alloc, 0);
test_basic(blk_if->vdev, t_alloc, vq);
vq = test_basic(blk_if->vdev, t_alloc);
qvirtqueue_cleanup(blk_if->vdev->bus, vq, t_alloc);
}
@ -353,15 +357,12 @@ static void indirect(void *obj, void *u_data, QGuestAllocator *t_alloc)
QVRingIndirectDesc *indirect;
uint64_t req_addr;
uint64_t capacity;
uint32_t features;
uint64_t features;
uint32_t free_head;
uint8_t status;
char *data;
QTestState *qts = global_qtest;
capacity = qvirtio_config_readq(dev, 0);
g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512);
features = qvirtio_get_features(dev);
g_assert_cmphex(features & (1u << VIRTIO_RING_F_INDIRECT_DESC), !=, 0);
features = features & ~(QVIRTIO_F_BAD_FEATURE |
@ -369,6 +370,9 @@ static void indirect(void *obj, void *u_data, QGuestAllocator *t_alloc)
(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);
@ -384,8 +388,8 @@ static void indirect(void *obj, void *u_data, QGuestAllocator *t_alloc)
g_free(req.data);
indirect = qvring_indirect_desc_setup(qts, dev, t_alloc, 2);
qvring_indirect_desc_add(qts, indirect, req_addr, 528, false);
qvring_indirect_desc_add(qts, indirect, req_addr + 528, 1, true);
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);
@ -409,8 +413,8 @@ static void indirect(void *obj, void *u_data, QGuestAllocator *t_alloc)
g_free(req.data);
indirect = qvring_indirect_desc_setup(qts, dev, t_alloc, 2);
qvring_indirect_desc_add(qts, indirect, req_addr, 16, false);
qvring_indirect_desc_add(qts, indirect, req_addr + 16, 513, true);
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);
@ -434,8 +438,16 @@ 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);
@ -460,7 +472,7 @@ static void msix(void *obj, void *u_data, QGuestAllocator *t_alloc)
int n_size = TEST_IMAGE_SIZE / 2;
uint64_t req_addr;
uint64_t capacity;
uint32_t features;
uint64_t features;
uint32_t free_head;
uint8_t status;
char *data;
@ -475,9 +487,6 @@ static void msix(void *obj, void *u_data, QGuestAllocator *t_alloc)
qpci_msix_enable(pdev->pdev);
qvirtio_pci_set_msix_configuration_vector(pdev, t_alloc, 0);
capacity = qvirtio_config_readq(dev, 0);
g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512);
features = qvirtio_get_features(dev);
features = features & ~(QVIRTIO_F_BAD_FEATURE |
(1u << VIRTIO_RING_F_INDIRECT_DESC) |
@ -485,6 +494,9 @@ static void msix(void *obj, void *u_data, QGuestAllocator *t_alloc)
(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);
@ -567,7 +579,7 @@ static void idx(void *obj, void *u_data, QGuestAllocator *t_alloc)
QVirtioBlkReq req;
uint64_t req_addr;
uint64_t capacity;
uint32_t features;
uint64_t features;
uint32_t free_head;
uint32_t write_head;
uint32_t desc_idx;
@ -584,9 +596,6 @@ static void idx(void *obj, void *u_data, QGuestAllocator *t_alloc)
qpci_msix_enable(pdev->pdev);
qvirtio_pci_set_msix_configuration_vector(pdev, t_alloc, 0);
capacity = qvirtio_config_readq(dev, 0);
g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512);
features = qvirtio_get_features(dev);
features = features & ~(QVIRTIO_F_BAD_FEATURE |
(1u << VIRTIO_RING_F_INDIRECT_DESC) |
@ -594,6 +603,9 @@ static void idx(void *obj, void *u_data, QGuestAllocator *t_alloc)
(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);
@ -739,9 +751,7 @@ static void resize(void *obj, void *data, QGuestAllocator *t_alloc)
QVirtQueue *vq;
QTestState *qts = global_qtest;
vq = qvirtqueue_setup(dev, t_alloc, 0);
test_basic(dev, t_alloc, vq);
vq = test_basic(dev, t_alloc);
qmp_discard_response("{ 'execute': 'block_resize', "
" 'arguments': { 'device': 'drive0', "

8
tests/virtio-scsi-test.c
View File

@ -123,10 +123,16 @@ static QVirtioSCSIQueues *qvirtio_scsi_init(QVirtioDevice *dev)
QVirtioSCSIQueues *vs;
const uint8_t test_unit_ready_cdb[VIRTIO_SCSI_CDB_SIZE] = {};
struct virtio_scsi_cmd_resp resp;
uint64_t features;
int i;
vs = g_new0(QVirtioSCSIQueues, 1);
vs->dev = dev;
features = qvirtio_get_features(dev);
features &= ~(QVIRTIO_F_BAD_FEATURE | (1ull << VIRTIO_RING_F_EVENT_IDX));
qvirtio_set_features(dev, features);
vs->num_queues = qvirtio_config_readl(dev, 0);
g_assert_cmpint(vs->num_queues, <, MAX_NUM_QUEUES);
@ -135,6 +141,8 @@ static QVirtioSCSIQueues *qvirtio_scsi_init(QVirtioDevice *dev)
vs->vq[i] = qvirtqueue_setup(dev, alloc, i);
}
qvirtio_set_driver_ok(dev);
/* Clear the POWER ON OCCURRED unit attention */
g_assert_cmpint(virtio_scsi_do_command(vs, test_unit_ready_cdb,
NULL, 0, NULL, 0, &resp),