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pc,pci,virtio: features, fixes, tests

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vhost user rng
 vdpa multiqueue
 Fixes, cleanups, new tests all over the place.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

pc,pci,virtio: features, fixes, tests

vhost user rng
vdpa multiqueue
Fixes, cleanups, new tests all over the place.

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

# gpg: Signature made Wed 20 Oct 2021 03:18:24 AM PDT
# gpg:                using RSA key 5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469
# gpg:                issuer "mst@redhat.com"
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full]
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>" [full]

* remotes/mst/tags/for_upstream: (44 commits)
  tests/acpi/bios-tables-test: update DSDT blob for multifunction bridge test
  tests/acpi/pcihp: add unit tests for hotplug on multifunction bridges for q35
  tests/acpi/bios-tables-test: add and allow changes to a new q35 DSDT table blob
  pci: fix PCI resource reserve capability on BE
  vhost-vdpa: multiqueue support
  virtio-net: vhost control virtqueue support
  vhost: record the last virtqueue index for the virtio device
  virtio-net: use "queue_pairs" instead of "queues" when possible
  vhost-net: control virtqueue support
  net: introduce control client
  vhost-vdpa: let net_vhost_vdpa_init() returns NetClientState *
  vhost-vdpa: prepare for the multiqueue support
  vhost-vdpa: classify one time request
  vhost-vdpa: open device fd in net_init_vhost_vdpa()
  bios-tables-test: don't disassemble empty files
  rebuild-expected-aml.sh: allow partial target list
  qdev/qbus: remove failover specific code
  vhost-user-blk-test: pass vhost-user socket fds to QSD
  failover: fix a regression introduced by JSON'ification of -device
  vhost-user: fix duplicated notifier MR init
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2021-10-20 06:10:51 -07:00
commit afc9fcde55
42 changed files with 1075 additions and 233 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
docs/system/device-emulation.rst
View File

@ -88,3 +88,4 @@ Emulated Devices
devices/usb.rst
devices/vhost-user.rst
devices/virtio-pmem.rst
devices/vhost-user-rng.rst

39
docs/system/devices/vhost-user-rng.rst Normal file
View File

@ -0,0 +1,39 @@
QEMU vhost-user-rng - RNG emulation
===================================
Background
----------
What follows builds on the material presented in vhost-user.rst - it should
be reviewed before moving forward with the content in this file.
Description
-----------
The vhost-user-rng device implementation was designed to work with a random
number generator daemon such as the one found in the vhost-device crate of
the rust-vmm project available on github [1].
[1]. https://github.com/rust-vmm/vhost-device
Examples
--------
The daemon should be started first:
::
host# vhost-device-rng --socket-path=rng.sock -c 1 -m 512 -p 1000
The QEMU invocation needs to create a chardev socket the device can
use to communicate as well as share the guests memory over a memfd.
::
host# qemu-system \
-chardev socket,path=$(PATH)/rng.sock,id=rng0 \
-device vhost-user-rng-pci,chardev=rng0 \
-m 4096 \
-object memory-backend-file,id=mem,size=4G,mem-path=/dev/shm,share=on \
-numa node,memdev=mem \
...

4
hw/net/vhost_net-stub.c
View File

@ -33,13 +33,13 @@ struct vhost_net *vhost_net_init(VhostNetOptions *options)
int vhost_net_start(VirtIODevice *dev,
NetClientState *ncs,
int total_queues)
int data_queue_pairs, int cvq)
{
return -ENOSYS;
}
void vhost_net_stop(VirtIODevice *dev,
NetClientState *ncs,
int total_queues)
int data_queue_pairs, int cvq)
{
}

51
hw/net/vhost_net.c
View File

@ -231,9 +231,11 @@ fail:
return NULL;
}
static void vhost_net_set_vq_index(struct vhost_net *net, int vq_index)
static void vhost_net_set_vq_index(struct vhost_net *net, int vq_index,
int last_index)
{
net->dev.vq_index = vq_index;
net->dev.last_index = last_index;
}
static int vhost_net_start_one(struct vhost_net *net,
@ -315,25 +317,37 @@ static void vhost_net_stop_one(struct vhost_net *net,
}
int vhost_net_start(VirtIODevice *dev, NetClientState *ncs,
int total_queues)
int data_queue_pairs, int cvq)
{
BusState *qbus = BUS(qdev_get_parent_bus(DEVICE(dev)));
VirtioBusState *vbus = VIRTIO_BUS(qbus);
VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(vbus);
int total_notifiers = data_queue_pairs * 2 + cvq;
VirtIONet *n = VIRTIO_NET(dev);
int nvhosts = data_queue_pairs + cvq;
struct vhost_net *net;
int r, e, i;
int r, e, i, last_index = data_queue_pairs * 2;
NetClientState *peer;
if (!cvq) {
last_index -= 1;
}
if (!k->set_guest_notifiers) {
error_report("binding does not support guest notifiers");
return -ENOSYS;
}
for (i = 0; i < total_queues; i++) {
for (i = 0; i < nvhosts; i++) {
if (i < data_queue_pairs) {
peer = qemu_get_peer(ncs, i);
} else { /* Control Virtqueue */
peer = qemu_get_peer(ncs, n->max_queue_pairs);
}
net = get_vhost_net(peer);
vhost_net_set_vq_index(net, i * 2);
vhost_net_set_vq_index(net, i * 2, last_index);
/* Suppress the masking guest notifiers on vhost user
* because vhost user doesn't interrupt masking/unmasking
@ -344,14 +358,18 @@ int vhost_net_start(VirtIODevice *dev, NetClientState *ncs,
}
}
r = k->set_guest_notifiers(qbus->parent, total_queues * 2, true);
r = k->set_guest_notifiers(qbus->parent, total_notifiers, true);
if (r < 0) {
error_report("Error binding guest notifier: %d", -r);
goto err;
}
for (i = 0; i < total_queues; i++) {
for (i = 0; i < nvhosts; i++) {
if (i < data_queue_pairs) {
peer = qemu_get_peer(ncs, i);
} else {
peer = qemu_get_peer(ncs, n->max_queue_pairs);
}
r = vhost_net_start_one(get_vhost_net(peer), dev);
if (r < 0) {
@ -375,7 +393,7 @@ err_start:
peer = qemu_get_peer(ncs , i);
vhost_net_stop_one(get_vhost_net(peer), dev);
}
e = k->set_guest_notifiers(qbus->parent, total_queues * 2, false);
e = k->set_guest_notifiers(qbus->parent, total_notifiers, false);
if (e < 0) {
fprintf(stderr, "vhost guest notifier cleanup failed: %d\n", e);
fflush(stderr);
@ -385,18 +403,27 @@ err:
}
void vhost_net_stop(VirtIODevice *dev, NetClientState *ncs,
int total_queues)
int data_queue_pairs, int cvq)
{
BusState *qbus = BUS(qdev_get_parent_bus(DEVICE(dev)));
VirtioBusState *vbus = VIRTIO_BUS(qbus);
VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(vbus);
VirtIONet *n = VIRTIO_NET(dev);
NetClientState *peer;
int total_notifiers = data_queue_pairs * 2 + cvq;
int nvhosts = data_queue_pairs + cvq;
int i, r;
for (i = 0; i < total_queues; i++) {
vhost_net_stop_one(get_vhost_net(ncs[i].peer), dev);
for (i = 0; i < nvhosts; i++) {
if (i < data_queue_pairs) {
peer = qemu_get_peer(ncs, i);
} else {
peer = qemu_get_peer(ncs, n->max_queue_pairs);
}
vhost_net_stop_one(get_vhost_net(peer), dev);
}
r = k->set_guest_notifiers(qbus->parent, total_queues * 2, false);
r = k->set_guest_notifiers(qbus->parent, total_notifiers, false);
if (r < 0) {
fprintf(stderr, "vhost guest notifier cleanup failed: %d\n", r);
fflush(stderr);

195
hw/net/virtio-net.c
View File

@ -54,7 +54,7 @@
#define VIRTIO_NET_RX_QUEUE_DEFAULT_SIZE 256
#define VIRTIO_NET_TX_QUEUE_DEFAULT_SIZE 256
/* for now, only allow larger queues; with virtio-1, guest can downsize */
/* for now, only allow larger queue_pairs; with virtio-1, guest can downsize */
#define VIRTIO_NET_RX_QUEUE_MIN_SIZE VIRTIO_NET_RX_QUEUE_DEFAULT_SIZE
#define VIRTIO_NET_TX_QUEUE_MIN_SIZE VIRTIO_NET_TX_QUEUE_DEFAULT_SIZE
@ -131,7 +131,7 @@ static void virtio_net_get_config(VirtIODevice *vdev, uint8_t *config)
int ret = 0;
memset(&netcfg, 0 , sizeof(struct virtio_net_config));
virtio_stw_p(vdev, &netcfg.status, n->status);
virtio_stw_p(vdev, &netcfg.max_virtqueue_pairs, n->max_queues);
virtio_stw_p(vdev, &netcfg.max_virtqueue_pairs, n->max_queue_pairs);
virtio_stw_p(vdev, &netcfg.mtu, n->net_conf.mtu);
memcpy(netcfg.mac, n->mac, ETH_ALEN);
virtio_stl_p(vdev, &netcfg.speed, n->net_conf.speed);
@ -243,7 +243,8 @@ static void virtio_net_vhost_status(VirtIONet *n, uint8_t status)
{
VirtIODevice *vdev = VIRTIO_DEVICE(n);
NetClientState *nc = qemu_get_queue(n->nic);
int queues = n->multiqueue ? n->max_queues : 1;
int queue_pairs = n->multiqueue ? n->max_queue_pairs : 1;
int cvq = n->max_ncs - n->max_queue_pairs;
if (!get_vhost_net(nc->peer)) {
return;
@ -266,7 +267,7 @@ static void virtio_net_vhost_status(VirtIONet *n, uint8_t status)
/* Any packets outstanding? Purge them to avoid touching rings
* when vhost is running.
*/
for (i = 0; i < queues; i++) {
for (i = 0; i < queue_pairs; i++) {
NetClientState *qnc = qemu_get_subqueue(n->nic, i);
/* Purge both directions: TX and RX. */
@ -285,14 +286,14 @@ static void virtio_net_vhost_status(VirtIONet *n, uint8_t status)
}
n->vhost_started = 1;
r = vhost_net_start(vdev, n->nic->ncs, queues);
r = vhost_net_start(vdev, n->nic->ncs, queue_pairs, cvq);
if (r < 0) {
error_report("unable to start vhost net: %d: "
"falling back on userspace virtio", -r);
n->vhost_started = 0;
}
} else {
vhost_net_stop(vdev, n->nic->ncs, queues);
vhost_net_stop(vdev, n->nic->ncs, queue_pairs, cvq);
n->vhost_started = 0;
}
}
@ -309,11 +310,11 @@ static int virtio_net_set_vnet_endian_one(VirtIODevice *vdev,
}
static bool virtio_net_set_vnet_endian(VirtIODevice *vdev, NetClientState *ncs,
int queues, bool enable)
int queue_pairs, bool enable)
{
int i;
for (i = 0; i < queues; i++) {
for (i = 0; i < queue_pairs; i++) {
if (virtio_net_set_vnet_endian_one(vdev, ncs[i].peer, enable) < 0 &&
enable) {
while (--i >= 0) {
@ -330,7 +331,7 @@ static bool virtio_net_set_vnet_endian(VirtIODevice *vdev, NetClientState *ncs,
static void virtio_net_vnet_endian_status(VirtIONet *n, uint8_t status)
{
VirtIODevice *vdev = VIRTIO_DEVICE(n);
int queues = n->multiqueue ? n->max_queues : 1;
int queue_pairs = n->multiqueue ? n->max_queue_pairs : 1;
if (virtio_net_started(n, status)) {
/* Before using the device, we tell the network backend about the
@ -339,14 +340,14 @@ static void virtio_net_vnet_endian_status(VirtIONet *n, uint8_t status)
* virtio-net code.
*/
n->needs_vnet_hdr_swap = virtio_net_set_vnet_endian(vdev, n->nic->ncs,
queues, true);
queue_pairs, true);
} else if (virtio_net_started(n, vdev->status)) {
/* After using the device, we need to reset the network backend to
* the default (guest native endianness), otherwise the guest may
* lose network connectivity if it is rebooted into a different
* endianness.
*/
virtio_net_set_vnet_endian(vdev, n->nic->ncs, queues, false);
virtio_net_set_vnet_endian(vdev, n->nic->ncs, queue_pairs, false);
}
}
@ -368,12 +369,12 @@ static void virtio_net_set_status(struct VirtIODevice *vdev, uint8_t status)
virtio_net_vnet_endian_status(n, status);
virtio_net_vhost_status(n, status);
for (i = 0; i < n->max_queues; i++) {
for (i = 0; i < n->max_queue_pairs; i++) {
NetClientState *ncs = qemu_get_subqueue(n->nic, i);
bool queue_started;
q = &n->vqs[i];
if ((!n->multiqueue && i != 0) || i >= n->curr_queues) {
if ((!n->multiqueue && i != 0) || i >= n->curr_queue_pairs) {
queue_status = 0;
} else {
queue_status = status;
@ -540,7 +541,7 @@ static void virtio_net_reset(VirtIODevice *vdev)
n->nouni = 0;
n->nobcast = 0;
/* multiqueue is disabled by default */
n->curr_queues = 1;
n->curr_queue_pairs = 1;
timer_del(n->announce_timer.tm);
n->announce_timer.round = 0;
n->status &= ~VIRTIO_NET_S_ANNOUNCE;
@ -556,7 +557,7 @@ static void virtio_net_reset(VirtIODevice *vdev)
memset(n->vlans, 0, MAX_VLAN >> 3);
/* Flush any async TX */
for (i = 0; i < n->max_queues; i++) {
for (i = 0; i < n->max_queue_pairs; i++) {
NetClientState *nc = qemu_get_subqueue(n->nic, i);
if (nc->peer) {
@ -610,7 +611,7 @@ static void virtio_net_set_mrg_rx_bufs(VirtIONet *n, int mergeable_rx_bufs,
sizeof(struct virtio_net_hdr);
}
for (i = 0; i < n->max_queues; i++) {
for (i = 0; i < n->max_queue_pairs; i++) {
nc = qemu_get_subqueue(n->nic, i);
if (peer_has_vnet_hdr(n) &&
@ -655,7 +656,7 @@ static int peer_attach(VirtIONet *n, int index)
return 0;
}
if (n->max_queues == 1) {
if (n->max_queue_pairs == 1) {
return 0;
}
@ -681,7 +682,7 @@ static int peer_detach(VirtIONet *n, int index)
return tap_disable(nc->peer);
}
static void virtio_net_set_queues(VirtIONet *n)
static void virtio_net_set_queue_pairs(VirtIONet *n)
{
int i;
int r;
@ -690,8 +691,8 @@ static void virtio_net_set_queues(VirtIONet *n)
return;
}
for (i = 0; i < n->max_queues; i++) {
if (i < n->curr_queues) {
for (i = 0; i < n->max_queue_pairs; i++) {
if (i < n->curr_queue_pairs) {
r = peer_attach(n, i);
assert(!r);
} else {
@ -905,7 +906,7 @@ static void virtio_net_set_features(VirtIODevice *vdev, uint64_t features)
virtio_net_apply_guest_offloads(n);
}
for (i = 0; i < n->max_queues; i++) {
for (i = 0; i < n->max_queue_pairs; i++) {
NetClientState *nc = qemu_get_subqueue(n->nic, i);
if (!get_vhost_net(nc->peer)) {
@ -1232,7 +1233,7 @@ static uint16_t virtio_net_handle_rss(VirtIONet *n,
VirtIODevice *vdev = VIRTIO_DEVICE(n);
struct virtio_net_rss_config cfg;
size_t s, offset = 0, size_get;
uint16_t queues, i;
uint16_t queue_pairs, i;
struct {
uint16_t us;
uint8_t b;
@ -1274,7 +1275,7 @@ static uint16_t virtio_net_handle_rss(VirtIONet *n,
}
n->rss_data.default_queue = do_rss ?
virtio_lduw_p(vdev, &cfg.unclassified_queue) : 0;
if (n->rss_data.default_queue >= n->max_queues) {
if (n->rss_data.default_queue >= n->max_queue_pairs) {
err_msg = "Invalid default queue";
err_value = n->rss_data.default_queue;
goto error;
@ -1303,14 +1304,14 @@ static uint16_t virtio_net_handle_rss(VirtIONet *n,
size_get = sizeof(temp);
s = iov_to_buf(iov, iov_cnt, offset, &temp, size_get);
if (s != size_get) {
err_msg = "Can't get queues";
err_msg = "Can't get queue_pairs";
err_value = (uint32_t)s;
goto error;
}
queues = do_rss ? virtio_lduw_p(vdev, &temp.us) : n->curr_queues;
if (queues == 0 || queues > n->max_queues) {
err_msg = "Invalid number of queues";
err_value = queues;
queue_pairs = do_rss ? virtio_lduw_p(vdev, &temp.us) : n->curr_queue_pairs;
if (queue_pairs == 0 || queue_pairs > n->max_queue_pairs) {
err_msg = "Invalid number of queue_pairs";
err_value = queue_pairs;
goto error;
}
if (temp.b > VIRTIO_NET_RSS_MAX_KEY_SIZE) {
@ -1325,7 +1326,7 @@ static uint16_t virtio_net_handle_rss(VirtIONet *n,
}
if (!temp.b && !n->rss_data.hash_types) {
virtio_net_disable_rss(n);
return queues;
return queue_pairs;
}
offset += size_get;
size_get = temp.b;
@ -1358,7 +1359,7 @@ static uint16_t virtio_net_handle_rss(VirtIONet *n,
trace_virtio_net_rss_enable(n->rss_data.hash_types,
n->rss_data.indirections_len,
temp.b);
return queues;
return queue_pairs;
error:
trace_virtio_net_rss_error(err_msg, err_value);
virtio_net_disable_rss(n);
@ -1369,15 +1370,15 @@ static int virtio_net_handle_mq(VirtIONet *n, uint8_t cmd,
struct iovec *iov, unsigned int iov_cnt)
{
VirtIODevice *vdev = VIRTIO_DEVICE(n);
uint16_t queues;
uint16_t queue_pairs;
virtio_net_disable_rss(n);
if (cmd == VIRTIO_NET_CTRL_MQ_HASH_CONFIG) {
queues = virtio_net_handle_rss(n, iov, iov_cnt, false);
return queues ? VIRTIO_NET_OK : VIRTIO_NET_ERR;
queue_pairs = virtio_net_handle_rss(n, iov, iov_cnt, false);
return queue_pairs ? VIRTIO_NET_OK : VIRTIO_NET_ERR;
}
if (cmd == VIRTIO_NET_CTRL_MQ_RSS_CONFIG) {
queues = virtio_net_handle_rss(n, iov, iov_cnt, true);
queue_pairs = virtio_net_handle_rss(n, iov, iov_cnt, true);
} else if (cmd == VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET) {
struct virtio_net_ctrl_mq mq;
size_t s;
@ -1388,24 +1389,24 @@ static int virtio_net_handle_mq(VirtIONet *n, uint8_t cmd,
if (s != sizeof(mq)) {
return VIRTIO_NET_ERR;
}
queues = virtio_lduw_p(vdev, &mq.virtqueue_pairs);
queue_pairs = virtio_lduw_p(vdev, &mq.virtqueue_pairs);
} else {
return VIRTIO_NET_ERR;
}
if (queues < VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MIN ||
queues > VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MAX ||
queues > n->max_queues ||
if (queue_pairs < VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MIN ||
queue_pairs > VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MAX ||
queue_pairs > n->max_queue_pairs ||
!n->multiqueue) {
return VIRTIO_NET_ERR;
}
n->curr_queues = queues;
/* stop the backend before changing the number of queues to avoid handling a
n->curr_queue_pairs = queue_pairs;
/* stop the backend before changing the number of queue_pairs to avoid handling a
* disabled queue */
virtio_net_set_status(vdev, vdev->status);
virtio_net_set_queues(n);
virtio_net_set_queue_pairs(n);
return VIRTIO_NET_OK;
}
@ -1483,7 +1484,7 @@ static bool virtio_net_can_receive(NetClientState *nc)
return false;
}
if (nc->queue_index >= n->curr_queues) {
if (nc->queue_index >= n->curr_queue_pairs) {
return false;
}
@ -2763,11 +2764,11 @@ static void virtio_net_del_queue(VirtIONet *n, int index)
virtio_del_queue(vdev, index * 2 + 1);
}
static void virtio_net_change_num_queues(VirtIONet *n, int new_max_queues)
static void virtio_net_change_num_queue_pairs(VirtIONet *n, int new_max_queue_pairs)
{
VirtIODevice *vdev = VIRTIO_DEVICE(n);
int old_num_queues = virtio_get_num_queues(vdev);
int new_num_queues = new_max_queues * 2 + 1;
int new_num_queues = new_max_queue_pairs * 2 + 1;
int i;
assert(old_num_queues >= 3);
@ -2800,12 +2801,12 @@ static void virtio_net_change_num_queues(VirtIONet *n, int new_max_queues)
static void virtio_net_set_multiqueue(VirtIONet *n, int multiqueue)
{
int max = multiqueue ? n->max_queues : 1;
int max = multiqueue ? n->max_queue_pairs : 1;
n->multiqueue = multiqueue;
virtio_net_change_num_queues(n, max);
virtio_net_change_num_queue_pairs(n, max);
virtio_net_set_queues(n);
virtio_net_set_queue_pairs(n);
}
static int virtio_net_post_load_device(void *opaque, int version_id)
@ -2838,7 +2839,7 @@ static int virtio_net_post_load_device(void *opaque, int version_id)
*/
n->saved_guest_offloads = n->curr_guest_offloads;
virtio_net_set_queues(n);
virtio_net_set_queue_pairs(n);
/* Find the first multicast entry in the saved MAC filter */
for (i = 0; i < n->mac_table.in_use; i++) {
@ -2851,7 +2852,7 @@ static int virtio_net_post_load_device(void *opaque, int version_id)
/* nc.link_down can't be migrated, so infer link_down according
* to link status bit in n->status */
link_down = (n->status & VIRTIO_NET_S_LINK_UP) == 0;
for (i = 0; i < n->max_queues; i++) {
for (i = 0; i < n->max_queue_pairs; i++) {
qemu_get_subqueue(n->nic, i)->link_down = link_down;
}
@ -2916,9 +2917,9 @@ static const VMStateDescription vmstate_virtio_net_queue_tx_waiting = {
},
};
static bool max_queues_gt_1(void *opaque, int version_id)
static bool max_queue_pairs_gt_1(void *opaque, int version_id)
{
return VIRTIO_NET(opaque)->max_queues > 1;
return VIRTIO_NET(opaque)->max_queue_pairs > 1;
}
static bool has_ctrl_guest_offloads(void *opaque, int version_id)
@ -2943,13 +2944,13 @@ static bool mac_table_doesnt_fit(void *opaque, int version_id)
struct VirtIONetMigTmp {
VirtIONet *parent;
VirtIONetQueue *vqs_1;
uint16_t curr_queues_1;
uint16_t curr_queue_pairs_1;
uint8_t has_ufo;
uint32_t has_vnet_hdr;
};
/* The 2nd and subsequent tx_waiting flags are loaded later than
* the 1st entry in the queues and only if there's more than one
* the 1st entry in the queue_pairs and only if there's more than one
* entry. We use the tmp mechanism to calculate a temporary
* pointer and count and also validate the count.
*/
@ -2959,9 +2960,9 @@ static int virtio_net_tx_waiting_pre_save(void *opaque)
struct VirtIONetMigTmp *tmp = opaque;
tmp->vqs_1 = tmp->parent->vqs + 1;
tmp->curr_queues_1 = tmp->parent->curr_queues - 1;
if (tmp->parent->curr_queues == 0) {
tmp->curr_queues_1 = 0;
tmp->curr_queue_pairs_1 = tmp->parent->curr_queue_pairs - 1;
if (tmp->parent->curr_queue_pairs == 0) {
tmp->curr_queue_pairs_1 = 0;
}
return 0;
@ -2974,9 +2975,9 @@ static int virtio_net_tx_waiting_pre_load(void *opaque)
/* Reuse the pointer setup from save */
virtio_net_tx_waiting_pre_save(opaque);
if (tmp->parent->curr_queues > tmp->parent->max_queues) {
error_report("virtio-net: curr_queues %x > max_queues %x",
tmp->parent->curr_queues, tmp->parent->max_queues);
if (tmp->parent->curr_queue_pairs > tmp->parent->max_queue_pairs) {
error_report("virtio-net: curr_queue_pairs %x > max_queue_pairs %x",
tmp->parent->curr_queue_pairs, tmp->parent->max_queue_pairs);
return -EINVAL;
}
@ -2990,7 +2991,7 @@ static const VMStateDescription vmstate_virtio_net_tx_waiting = {
.pre_save = virtio_net_tx_waiting_pre_save,
.fields = (VMStateField[]) {
VMSTATE_STRUCT_VARRAY_POINTER_UINT16(vqs_1, struct VirtIONetMigTmp,
curr_queues_1,
curr_queue_pairs_1,
vmstate_virtio_net_queue_tx_waiting,
struct VirtIONetQueue),
VMSTATE_END_OF_LIST()
@ -3132,9 +3133,9 @@ static const VMStateDescription vmstate_virtio_net_device = {
VMSTATE_UINT8(nobcast, VirtIONet),
VMSTATE_WITH_TMP(VirtIONet, struct VirtIONetMigTmp,
vmstate_virtio_net_has_ufo),
VMSTATE_SINGLE_TEST(max_queues, VirtIONet, max_queues_gt_1, 0,
VMSTATE_SINGLE_TEST(max_queue_pairs, VirtIONet, max_queue_pairs_gt_1, 0,
vmstate_info_uint16_equal, uint16_t),
VMSTATE_UINT16_TEST(curr_queues, VirtIONet, max_queues_gt_1),
VMSTATE_UINT16_TEST(curr_queue_pairs, VirtIONet, max_queue_pairs_gt_1),
VMSTATE_WITH_TMP(VirtIONet, struct VirtIONetMigTmp,
vmstate_virtio_net_tx_waiting),
VMSTATE_UINT64_TEST(curr_guest_offloads, VirtIONet,
@ -3299,19 +3300,41 @@ static bool failover_hide_primary_device(DeviceListener *listener,
if (!device_opts) {
return false;
}
standby_id = qdict_get_try_str(device_opts, "failover_pair_id");
if (!qdict_haskey(device_opts, "failover_pair_id")) {
return false;
}
if (!qdict_haskey(device_opts, "id")) {
error_setg(errp, "Device with failover_pair_id needs to have id");
return false;
}
standby_id = qdict_get_str(device_opts, "failover_pair_id");
if (g_strcmp0(standby_id, n->netclient_name) != 0) {
return false;
}
/*
* The hide helper can be called several times for a given device.
* Check there is only one primary for a virtio-net device but
* don't duplicate the qdict several times if it's called for the same
* device.
*/
if (n->primary_opts) {
error_setg(errp, "Cannot attach more than one primary device to '%s'",
n->netclient_name);
const char *old, *new;
/* devices with failover_pair_id always have an id */
old = qdict_get_str(n->primary_opts, "id");
new = qdict_get_str(device_opts, "id");
if (strcmp(old, new) != 0) {
error_setg(errp, "Cannot attach more than one primary device to "
"'%s': '%s' and '%s'", n->netclient_name, old, new);
return false;
}
} else {
n->primary_opts = qdict_clone_shallow(device_opts);
n->primary_opts_from_json = from_json;
}
/* failover_primary_hidden is set during feature negotiation */
return qatomic_read(&n->failover_primary_hidden);
@ -3389,16 +3412,30 @@ static void virtio_net_device_realize(DeviceState *dev, Error **errp)
return;
}
n->max_queues = MAX(n->nic_conf.peers.queues, 1);
if (n->max_queues * 2 + 1 > VIRTIO_QUEUE_MAX) {
error_setg(errp, "Invalid number of queues (= %" PRIu32 "), "
n->max_ncs = MAX(n->nic_conf.peers.queues, 1);
/*
* Figure out the datapath queue pairs since the backend could
* provide control queue via peers as well.
*/
if (n->nic_conf.peers.queues) {
for (i = 0; i < n->max_ncs; i++) {
if (n->nic_conf.peers.ncs[i]->is_datapath) {
++n->max_queue_pairs;
}
}
}
n->max_queue_pairs = MAX(n->max_queue_pairs, 1);
if (n->max_queue_pairs * 2 + 1 > VIRTIO_QUEUE_MAX) {
error_setg(errp, "Invalid number of queue pairs (= %" PRIu32 "), "
"must be a positive integer less than %d.",
n->max_queues, (VIRTIO_QUEUE_MAX - 1) / 2);
n->max_queue_pairs, (VIRTIO_QUEUE_MAX - 1) / 2);
virtio_cleanup(vdev);
return;
}
n->vqs = g_malloc0(sizeof(VirtIONetQueue) * n->max_queues);
n->curr_queues = 1;
n->vqs = g_malloc0(sizeof(VirtIONetQueue) * n->max_queue_pairs);
n->curr_queue_pairs = 1;
n->tx_timeout = n->net_conf.txtimer;
if (n->net_conf.tx && strcmp(n->net_conf.tx, "timer")
@ -3412,7 +3449,7 @@ static void virtio_net_device_realize(DeviceState *dev, Error **errp)
n->net_conf.tx_queue_size = MIN(virtio_net_max_tx_queue_size(n),
n->net_conf.tx_queue_size);
for (i = 0; i < n->max_queues; i++) {
for (i = 0; i < n->max_queue_pairs; i++) {
virtio_net_add_queue(n, i);
}
@ -3436,13 +3473,13 @@ static void virtio_net_device_realize(DeviceState *dev, Error **errp)
object_get_typename(OBJECT(dev)), dev->id, n);
}
for (i = 0; i < n->max_queues; i++) {
for (i = 0; i < n->max_queue_pairs; i++) {
n->nic->ncs[i].do_not_pad = true;
}
peer_test_vnet_hdr(n);
if (peer_has_vnet_hdr(n)) {
for (i = 0; i < n->max_queues; i++) {
for (i = 0; i < n->max_queue_pairs; i++) {
qemu_using_vnet_hdr(qemu_get_subqueue(n->nic, i)->peer, true);
}
n->host_hdr_len = sizeof(struct virtio_net_hdr);
@ -3484,7 +3521,7 @@ static void virtio_net_device_unrealize(DeviceState *dev)
{
VirtIODevice *vdev = VIRTIO_DEVICE(dev);
VirtIONet *n = VIRTIO_NET(dev);
int i, max_queues;
int i, max_queue_pairs;
if (virtio_has_feature(n->host_features, VIRTIO_NET_F_RSS)) {
virtio_net_unload_ebpf(n);
@ -3509,12 +3546,12 @@ static void virtio_net_device_unrealize(DeviceState *dev)
assert(n->primary_opts == NULL);
}
max_queues = n->multiqueue ? n->max_queues : 1;
for (i = 0; i < max_queues; i++) {
max_queue_pairs = n->multiqueue ? n->max_queue_pairs : 1;
for (i = 0; i < max_queue_pairs; i++) {
virtio_net_del_queue(n, i);
}
/* delete also control vq */
virtio_del_queue(vdev, max_queues * 2);
virtio_del_queue(vdev, max_queue_pairs * 2);
qemu_announce_timer_del(&n->announce_timer, false);
g_free(n->vqs);
qemu_del_nic(n->nic);

10
hw/pci/pci_bridge.c
View File

@ -448,11 +448,11 @@ int pci_bridge_qemu_reserve_cap_init(PCIDevice *dev, int cap_offset,
PCIBridgeQemuCap cap = {
.len = cap_len,
.type = REDHAT_PCI_CAP_RESOURCE_RESERVE,
.bus_res = res_reserve.bus,
.io = res_reserve.io,
.mem = res_reserve.mem_non_pref,
.mem_pref_32 = res_reserve.mem_pref_32,
.mem_pref_64 = res_reserve.mem_pref_64
.bus_res = cpu_to_le32(res_reserve.bus),
.io = cpu_to_le64(res_reserve.io),
.mem = cpu_to_le32(res_reserve.mem_non_pref),
.mem_pref_32 = cpu_to_le32(res_reserve.mem_pref_32),
.mem_pref_64 = cpu_to_le64(res_reserve.mem_pref_64)
};
int offset = pci_add_capability(dev, PCI_CAP_ID_VNDR,

5
hw/virtio/Kconfig
View File

@ -63,3 +63,8 @@ config VHOST_USER_I2C
bool
default y
depends on VIRTIO && VHOST_USER
config VHOST_USER_RNG
bool
default y
depends on VIRTIO && VHOST_USER

2
hw/virtio/meson.build
View File

@ -27,6 +27,8 @@ virtio_ss.add(when: 'CONFIG_VIRTIO_IOMMU', if_true: files('virtio-iommu.c'))
virtio_ss.add(when: 'CONFIG_VIRTIO_MEM', if_true: files('virtio-mem.c'))
virtio_ss.add(when: 'CONFIG_VHOST_USER_I2C', if_true: files('vhost-user-i2c.c'))
virtio_ss.add(when: ['CONFIG_VIRTIO_PCI', 'CONFIG_VHOST_USER_I2C'], if_true: files('vhost-user-i2c-pci.c'))
virtio_ss.add(when: 'CONFIG_VHOST_USER_RNG', if_true: files('vhost-user-rng.c'))
virtio_ss.add(when: ['CONFIG_VHOST_USER_RNG', 'CONFIG_VIRTIO_PCI'], if_true: files('vhost-user-rng-pci.c'))
virtio_pci_ss = ss.source_set()
virtio_pci_ss.add(when: 'CONFIG_VHOST_VSOCK', if_true: files('vhost-vsock-pci.c'))

1
hw/virtio/trace-events
View File

@ -52,6 +52,7 @@ vhost_vdpa_set_vring_call(void *dev, unsigned int index, int fd) "dev: %p index:
vhost_vdpa_get_features(void *dev, uint64_t features) "dev: %p features: 0x%"PRIx64
vhost_vdpa_set_owner(void *dev) "dev: %p"
vhost_vdpa_vq_get_addr(void *dev, void *vq, uint64_t desc_user_addr, uint64_t avail_user_addr, uint64_t used_user_addr) "dev: %p vq: %p desc_user_addr: 0x%"PRIx64" avail_user_addr: 0x%"PRIx64" used_user_addr: 0x%"PRIx64
vhost_vdpa_get_iova_range(void *dev, uint64_t first, uint64_t last) "dev: %p first: 0x%"PRIx64" last: 0x%"PRIx64
# virtio.c
virtqueue_alloc_element(void *elem, size_t sz, unsigned in_num, unsigned out_num) "elem %p size %zd in_num %u out_num %u"

79
hw/virtio/vhost-user-rng-pci.c Normal file
View File

@ -0,0 +1,79 @@
/*
* Vhost-user RNG virtio device PCI glue
*
* Copyright (c) 2021 Mathieu Poirier <mathieu.poirier@linaro.org>
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "qemu/osdep.h"
#include "hw/qdev-properties.h"
#include "hw/virtio/vhost-user-rng.h"
#include "virtio-pci.h"
struct VHostUserRNGPCI {
VirtIOPCIProxy parent_obj;
VHostUserRNG vdev;
};
typedef struct VHostUserRNGPCI VHostUserRNGPCI;
#define TYPE_VHOST_USER_RNG_PCI "vhost-user-rng-pci-base"
DECLARE_INSTANCE_CHECKER(VHostUserRNGPCI, VHOST_USER_RNG_PCI,
TYPE_VHOST_USER_RNG_PCI)
static Property vhost_user_rng_pci_properties[] = {
DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors,
DEV_NVECTORS_UNSPECIFIED),
DEFINE_PROP_END_OF_LIST(),
};
static void vhost_user_rng_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
{
VHostUserRNGPCI *dev = VHOST_USER_RNG_PCI(vpci_dev);
DeviceState *vdev = DEVICE(&dev->vdev);
if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) {
vpci_dev->nvectors = 1;
}
qdev_realize(vdev, BUS(&vpci_dev->bus), errp);
}
static void vhost_user_rng_pci_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
k->realize = vhost_user_rng_pci_realize;
set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
device_class_set_props(dc, vhost_user_rng_pci_properties);
pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
pcidev_k->device_id = 0; /* Set by virtio-pci based on virtio id */
pcidev_k->revision = 0x00;
pcidev_k->class_id = PCI_CLASS_OTHERS;
}
static void vhost_user_rng_pci_instance_init(Object *obj)
{
VHostUserRNGPCI *dev = VHOST_USER_RNG_PCI(obj);
virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
TYPE_VHOST_USER_RNG);
}
static const VirtioPCIDeviceTypeInfo vhost_user_rng_pci_info = {
.base_name = TYPE_VHOST_USER_RNG_PCI,
.non_transitional_name = "vhost-user-rng-pci",
.instance_size = sizeof(VHostUserRNGPCI),
.instance_init = vhost_user_rng_pci_instance_init,
.class_init = vhost_user_rng_pci_class_init,
};
static void vhost_user_rng_pci_register(void)
{
virtio_pci_types_register(&vhost_user_rng_pci_info);
}
type_init(vhost_user_rng_pci_register);

289
hw/virtio/vhost-user-rng.c Normal file
View File

@ -0,0 +1,289 @@
/*
* Vhost-user RNG virtio device
*
* Copyright (c) 2021 Mathieu Poirier <mathieu.poirier@linaro.org>
*
* Implementation seriously tailored on vhost-user-i2c.c
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "hw/qdev-properties.h"
#include "hw/virtio/virtio-bus.h"
#include "hw/virtio/vhost-user-rng.h"
#include "qemu/error-report.h"
#include "standard-headers/linux/virtio_ids.h"
static void vu_rng_start(VirtIODevice *vdev)
{
VHostUserRNG *rng = VHOST_USER_RNG(vdev);
BusState *qbus = BUS(qdev_get_parent_bus(DEVICE(vdev)));
VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(qbus);
int ret;
int i;
if (!k->set_guest_notifiers) {
error_report("binding does not support guest notifiers");
return;
}
ret = vhost_dev_enable_notifiers(&rng->vhost_dev, vdev);
if (ret < 0) {
error_report("Error enabling host notifiers: %d", -ret);
return;
}
ret = k->set_guest_notifiers(qbus->parent, rng->vhost_dev.nvqs, true);
if (ret < 0) {
error_report("Error binding guest notifier: %d", -ret);
goto err_host_notifiers;
}
rng->vhost_dev.acked_features = vdev->guest_features;
ret = vhost_dev_start(&rng->vhost_dev, vdev);
if (ret < 0) {
error_report("Error starting vhost-user-rng: %d", -ret);
goto err_guest_notifiers;
}
/*
* guest_notifier_mask/pending not used yet, so just unmask
* everything here. virtio-pci will do the right thing by
* enabling/disabling irqfd.
*/
for (i = 0; i < rng->vhost_dev.nvqs; i++) {
vhost_virtqueue_mask(&rng->vhost_dev, vdev, i, false);
}
return;
err_guest_notifiers:
k->set_guest_notifiers(qbus->parent, rng->vhost_dev.nvqs, false);
err_host_notifiers:
vhost_dev_disable_notifiers(&rng->vhost_dev, vdev);
}
static void vu_rng_stop(VirtIODevice *vdev)
{
VHostUserRNG *rng = VHOST_USER_RNG(vdev);
BusState *qbus = BUS(qdev_get_parent_bus(DEVICE(vdev)));
VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(qbus);
int ret;
if (!k->set_guest_notifiers) {
return;
}
vhost_dev_stop(&rng->vhost_dev, vdev);
ret = k->set_guest_notifiers(qbus->parent, rng->vhost_dev.nvqs, false);
if (ret < 0) {
error_report("vhost guest notifier cleanup failed: %d", ret);
return;
}
vhost_dev_disable_notifiers(&rng->vhost_dev, vdev);
}
static void vu_rng_set_status(VirtIODevice *vdev, uint8_t status)
{
VHostUserRNG *rng = VHOST_USER_RNG(vdev);
bool should_start = status & VIRTIO_CONFIG_S_DRIVER_OK;
if (!vdev->vm_running) {
should_start = false;
}
if (rng->vhost_dev.started == should_start) {
return;
}
if (should_start) {
vu_rng_start(vdev);
} else {
vu_rng_stop(vdev);
}
}
static uint64_t vu_rng_get_features(VirtIODevice *vdev,
uint64_t requested_features, Error **errp)
{
/* No feature bits used yet */
return requested_features;
}
static void vu_rng_handle_output(VirtIODevice *vdev, VirtQueue *vq)
{
/*
* Not normally called; it's the daemon that handles the queue;
* however virtio's cleanup path can call this.
*/
}
static void vu_rng_guest_notifier_mask(VirtIODevice *vdev, int idx, bool mask)
{
VHostUserRNG *rng = VHOST_USER_RNG(vdev);
vhost_virtqueue_mask(&rng->vhost_dev, vdev, idx, mask);
}
static bool vu_rng_guest_notifier_pending(VirtIODevice *vdev, int idx)
{
VHostUserRNG *rng = VHOST_USER_RNG(vdev);
return vhost_virtqueue_pending(&rng->vhost_dev, idx);
}
static void vu_rng_connect(DeviceState *dev)
{
VirtIODevice *vdev = VIRTIO_DEVICE(dev);
VHostUserRNG *rng = VHOST_USER_RNG(vdev);
if (rng->connected) {
return;
}
rng->connected = true;
/* restore vhost state */
if (virtio_device_started(vdev, vdev->status)) {
vu_rng_start(vdev);
}
}
static void vu_rng_disconnect(DeviceState *dev)
{
VirtIODevice *vdev = VIRTIO_DEVICE(dev);
VHostUserRNG *rng = VHOST_USER_RNG(vdev);
if (!rng->connected) {
return;
}
rng->connected = false;
if (rng->vhost_dev.started) {
vu_rng_stop(vdev);
}
}
static void vu_rng_event(void *opaque, QEMUChrEvent event)
{
DeviceState *dev = opaque;
switch (event) {
case CHR_EVENT_OPENED:
vu_rng_connect(dev);
break;
case CHR_EVENT_CLOSED:
vu_rng_disconnect(dev);
break;
case CHR_EVENT_BREAK:
case CHR_EVENT_MUX_IN:
case CHR_EVENT_MUX_OUT:
/* Ignore */
break;
}
}
static void vu_rng_device_realize(DeviceState *dev, Error **errp)
{
VirtIODevice *vdev = VIRTIO_DEVICE(dev);
VHostUserRNG *rng = VHOST_USER_RNG(dev);
int ret;
if (!rng->chardev.chr) {
error_setg(errp, "missing chardev");
return;
}
if (!vhost_user_init(&rng->vhost_user, &rng->chardev, errp)) {
return;
}
virtio_init(vdev, "vhost-user-rng", VIRTIO_ID_RNG, 0);
rng->req_vq = virtio_add_queue(vdev, 4, vu_rng_handle_output);
if (!rng->req_vq) {
error_setg_errno(errp, -1, "virtio_add_queue() failed");
goto virtio_add_queue_failed;
}
rng->vhost_dev.nvqs = 1;
rng->vhost_dev.vqs = g_new0(struct vhost_virtqueue, rng->vhost_dev.nvqs);
ret = vhost_dev_init(&rng->vhost_dev, &rng->vhost_user,
VHOST_BACKEND_TYPE_USER, 0, errp);
if (ret < 0) {
error_setg_errno(errp, -ret, "vhost_dev_init() failed");
goto vhost_dev_init_failed;
}
qemu_chr_fe_set_handlers(&rng->chardev, NULL, NULL, vu_rng_event, NULL,
dev, NULL, true);
return;
vhost_dev_init_failed:
virtio_delete_queue(rng->req_vq);
virtio_add_queue_failed:
virtio_cleanup(vdev);
vhost_user_cleanup(&rng->vhost_user);
}
static void vu_rng_device_unrealize(DeviceState *dev)
{
VirtIODevice *vdev = VIRTIO_DEVICE(dev);
VHostUserRNG *rng = VHOST_USER_RNG(dev);
vu_rng_set_status(vdev, 0);
vhost_dev_cleanup(&rng->vhost_dev);
g_free(rng->vhost_dev.vqs);
rng->vhost_dev.vqs = NULL;
virtio_delete_queue(rng->req_vq);
virtio_cleanup(vdev);
vhost_user_cleanup(&rng->vhost_user);
}
static const VMStateDescription vu_rng_vmstate = {
.name = "vhost-user-rng",
.unmigratable = 1,
};
static Property vu_rng_properties[] = {
DEFINE_PROP_CHR("chardev", VHostUserRNG, chardev),
DEFINE_PROP_END_OF_LIST(),
};
static void vu_rng_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass);
device_class_set_props(dc, vu_rng_properties);
dc->vmsd = &vu_rng_vmstate;
set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
vdc->realize = vu_rng_device_realize;
vdc->unrealize = vu_rng_device_unrealize;
vdc->get_features = vu_rng_get_features;
vdc->set_status = vu_rng_set_status;
vdc->guest_notifier_mask = vu_rng_guest_notifier_mask;
vdc->guest_notifier_pending = vu_rng_guest_notifier_pending;
}
static const TypeInfo vu_rng_info = {
.name = TYPE_VHOST_USER_RNG,
.parent = TYPE_VIRTIO_DEVICE,
.instance_size = sizeof(VHostUserRNG),
.class_init = vu_rng_class_init,
};
static void vu_rng_register_types(void)
{
type_register_static(&vu_rng_info);
}
type_init(vu_rng_register_types)

1
hw/virtio/vhost-user.c
View File

@ -1526,6 +1526,7 @@ static int vhost_user_slave_handle_vring_host_notifier(struct vhost_dev *dev,
name = g_strdup_printf("vhost-user/host-notifier@%p mmaps[%d]",
user, queue_idx);
if (!n->mr.ram) /* Don't init again after suspend. */
memory_region_init_ram_device_ptr(&n->mr, OBJECT(vdev), name,
page_size, addr);
g_free(name);

132
hw/virtio/vhost-vdpa.c
View File

@ -24,19 +24,49 @@
#include "trace.h"
#include "qemu-common.h"
static bool vhost_vdpa_listener_skipped_section(MemoryRegionSection *section)
{
return (!memory_region_is_ram(section->mr) &&
!memory_region_is_iommu(section->mr)) ||
/* vhost-vDPA doesn't allow MMIO to be mapped */
memory_region_is_ram_device(section->mr) ||
/*
* Sizing an enabled 64-bit BAR can cause spurious mappings to
* addresses in the upper part of the 64-bit address space. These
* are never accessed by the CPU and beyond the address width of
* some IOMMU hardware. TODO: VDPA should tell us the IOMMU width.
* Return one past the end of the end of section. Be careful with uint64_t
* conversions!
*/
section->offset_within_address_space & (1ULL << 63);
static Int128 vhost_vdpa_section_end(const MemoryRegionSection *section)
{
Int128 llend = int128_make64(section->offset_within_address_space);
llend = int128_add(llend, section->size);
llend = int128_and(llend, int128_exts64(TARGET_PAGE_MASK));
return llend;
}
static bool vhost_vdpa_listener_skipped_section(MemoryRegionSection *section,
uint64_t iova_min,
uint64_t iova_max)
{
Int128 llend;
if ((!memory_region_is_ram(section->mr) &&
!memory_region_is_iommu(section->mr)) ||
memory_region_is_protected(section->mr) ||
/* vhost-vDPA doesn't allow MMIO to be mapped */
memory_region_is_ram_device(section->mr)) {
return true;
}
if (section->offset_within_address_space < iova_min) {
error_report("RAM section out of device range (min=0x%" PRIx64
", addr=0x%" HWADDR_PRIx ")",
iova_min, section->offset_within_address_space);
return true;
}
llend = vhost_vdpa_section_end(section);
if (int128_gt(llend, int128_make64(iova_max))) {
error_report("RAM section out of device range (max=0x%" PRIx64
", end addr=0x%" PRIx64 ")",
iova_max, int128_get64(llend));
return true;
}
return false;
}
static int vhost_vdpa_dma_map(struct vhost_vdpa *v, hwaddr iova, hwaddr size,
@ -148,7 +178,8 @@ static void vhost_vdpa_listener_region_add(MemoryListener *listener,
void *vaddr;
int ret;
if (vhost_vdpa_listener_skipped_section(section)) {
if (vhost_vdpa_listener_skipped_section(section, v->iova_range.first,
v->iova_range.last)) {
return;
}
@ -159,10 +190,7 @@ static void vhost_vdpa_listener_region_add(MemoryListener *listener,
}
iova = TARGET_PAGE_ALIGN(section->offset_within_address_space);
llend = int128_make64(section->offset_within_address_space);
llend = int128_add(llend, section->size);
llend = int128_and(llend, int128_exts64(TARGET_PAGE_MASK));
llend = vhost_vdpa_section_end(section);
if (int128_ge(int128_make64(iova), llend)) {
return;
}
@ -209,7 +237,8 @@ static void vhost_vdpa_listener_region_del(MemoryListener *listener,
Int128 llend, llsize;
int ret;
if (vhost_vdpa_listener_skipped_section(section)) {
if (vhost_vdpa_listener_skipped_section(section, v->iova_range.first,
v->iova_range.last)) {
return;
}
@ -220,9 +249,7 @@ static void vhost_vdpa_listener_region_del(MemoryListener *listener,
}
iova = TARGET_PAGE_ALIGN(section->offset_within_address_space);
llend = int128_make64(section->offset_within_address_space);
llend = int128_add(llend, section->size);
llend = int128_and(llend, int128_exts64(TARGET_PAGE_MASK));
llend = vhost_vdpa_section_end(section);
trace_vhost_vdpa_listener_region_del(v, iova, int128_get64(llend));
@ -279,6 +306,26 @@ static void vhost_vdpa_add_status(struct vhost_dev *dev, uint8_t status)
vhost_vdpa_call(dev, VHOST_VDPA_SET_STATUS, &s);
}
static void vhost_vdpa_get_iova_range(struct vhost_vdpa *v)
{
int ret = vhost_vdpa_call(v->dev, VHOST_VDPA_GET_IOVA_RANGE,
&v->iova_range);
if (ret != 0) {
v->iova_range.first = 0;
v->iova_range.last = UINT64_MAX;
}
trace_vhost_vdpa_get_iova_range(v->dev, v->iova_range.first,
v->iova_range.last);
}
static bool vhost_vdpa_one_time_request(struct vhost_dev *dev)
{
struct vhost_vdpa *v = dev->opaque;
return v->index != 0;
}
static int vhost_vdpa_init(struct vhost_dev *dev, void *opaque, Error **errp)
{
struct vhost_vdpa *v;
@ -291,6 +338,12 @@ static int vhost_vdpa_init(struct vhost_dev *dev, void *opaque, Error **errp)
v->listener = vhost_vdpa_memory_listener;
v->msg_type = VHOST_IOTLB_MSG_V2;
vhost_vdpa_get_iova_range(v);
if (vhost_vdpa_one_time_request(dev)) {
return 0;
}
vhost_vdpa_add_status(dev, VIRTIO_CONFIG_S_ACKNOWLEDGE |
VIRTIO_CONFIG_S_DRIVER);
@ -401,6 +454,10 @@ static int vhost_vdpa_memslots_limit(struct vhost_dev *dev)
static int vhost_vdpa_set_mem_table(struct vhost_dev *dev,
struct vhost_memory *mem)
{
if (vhost_vdpa_one_time_request(dev)) {
return 0;
}
trace_vhost_vdpa_set_mem_table(dev, mem->nregions, mem->padding);
if (trace_event_get_state_backends(TRACE_VHOST_VDPA_SET_MEM_TABLE) &&
trace_event_get_state_backends(TRACE_VHOST_VDPA_DUMP_REGIONS)) {
@ -424,6 +481,11 @@ static int vhost_vdpa_set_features(struct vhost_dev *dev,
uint64_t features)
{
int ret;
if (vhost_vdpa_one_time_request(dev)) {
return 0;
}
trace_vhost_vdpa_set_features(dev, features);
ret = vhost_vdpa_call(dev, VHOST_SET_FEATURES, &features);
uint8_t status = 0;
@ -448,10 +510,13 @@ static int vhost_vdpa_set_backend_cap(struct vhost_dev *dev)
}
features &= f;
if (vhost_vdpa_one_time_request(dev)) {
r = vhost_vdpa_call(dev, VHOST_SET_BACKEND_FEATURES, &features);
if (r) {
return -EFAULT;
}
}
dev->backend_cap = features;
@ -481,8 +546,8 @@ static int vhost_vdpa_get_vq_index(struct vhost_dev *dev, int idx)
{
assert(idx >= dev->vq_index && idx < dev->vq_index + dev->nvqs);
trace_vhost_vdpa_get_vq_index(dev, idx, idx - dev->vq_index);
return idx - dev->vq_index;
trace_vhost_vdpa_get_vq_index(dev, idx, idx);
return idx;
}
static int vhost_vdpa_set_vring_ready(struct vhost_dev *dev)
@ -559,11 +624,21 @@ static int vhost_vdpa_dev_start(struct vhost_dev *dev, bool started)
{
struct vhost_vdpa *v = dev->opaque;
trace_vhost_vdpa_dev_start(dev, started);
if (started) {
vhost_vdpa_host_notifiers_init(dev);
vhost_vdpa_set_vring_ready(dev);
} else {
vhost_vdpa_host_notifiers_uninit(dev, dev->nvqs);
}
if (dev->vq_index + dev->nvqs != dev->last_index) {
return 0;
}
if (started) {
uint8_t status = 0;
memory_listener_register(&v->listener, &address_space_memory);
vhost_vdpa_host_notifiers_init(dev);
vhost_vdpa_set_vring_ready(dev);
vhost_vdpa_add_status(dev, VIRTIO_CONFIG_S_DRIVER_OK);
vhost_vdpa_call(dev, VHOST_VDPA_GET_STATUS, &status);
@ -572,7 +647,6 @@ static int vhost_vdpa_dev_start(struct vhost_dev *dev, bool started)
vhost_vdpa_reset_device(dev);
vhost_vdpa_add_status(dev, VIRTIO_CONFIG_S_ACKNOWLEDGE |
VIRTIO_CONFIG_S_DRIVER);
vhost_vdpa_host_notifiers_uninit(dev, dev->nvqs);
memory_listener_unregister(&v->listener);
return 0;
@ -582,6 +656,10 @@ static int vhost_vdpa_dev_start(struct vhost_dev *dev, bool started)
static int vhost_vdpa_set_log_base(struct vhost_dev *dev, uint64_t base,
struct vhost_log *log)
{
if (vhost_vdpa_one_time_request(dev)) {
return 0;
}
trace_vhost_vdpa_set_log_base(dev, base, log->size, log->refcnt, log->fd,
log->log);
return vhost_vdpa_call(dev, VHOST_SET_LOG_BASE, &base);
@ -647,6 +725,10 @@ static int vhost_vdpa_get_features(struct vhost_dev *dev,
static int vhost_vdpa_set_owner(struct vhost_dev *dev)
{
if (vhost_vdpa_one_time_request(dev)) {
return 0;
}
trace_vhost_vdpa_set_owner(dev);
return vhost_vdpa_call(dev, VHOST_SET_OWNER, NULL);
}

4
hw/virtio/virtio-iommu-pci.c
View File

@ -98,9 +98,7 @@ static void virtio_iommu_pci_instance_init(Object *obj)
}
static const VirtioPCIDeviceTypeInfo virtio_iommu_pci_info = {
.base_name = TYPE_VIRTIO_IOMMU_PCI,
.generic_name = "virtio-iommu-pci",
.non_transitional_name = "virtio-iommu-pci-non-transitional",
.generic_name = TYPE_VIRTIO_IOMMU_PCI,
.instance_size = sizeof(VirtIOIOMMUPCI),
.instance_init = virtio_iommu_pci_instance_init,
.class_init = virtio_iommu_pci_class_init,

33
include/hw/virtio/vhost-user-rng.h Normal file
View File

@ -0,0 +1,33 @@
/*
* Vhost-user RNG virtio device
*
* Copyright (c) 2021 Mathieu Poirier <mathieu.poirier@linaro.org>
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef _QEMU_VHOST_USER_RNG_H
#define _QEMU_VHOST_USER_RNG_H
#include "hw/virtio/virtio.h"
#include "hw/virtio/vhost.h"
#include "hw/virtio/vhost-user.h"
#include "chardev/char-fe.h"
#define TYPE_VHOST_USER_RNG "vhost-user-rng"
OBJECT_DECLARE_SIMPLE_TYPE(VHostUserRNG, VHOST_USER_RNG)
struct VHostUserRNG {
/*< private >*/
VirtIODevice parent;
CharBackend chardev;
struct vhost_virtqueue *vhost_vq;
struct vhost_dev vhost_dev;
VhostUserState vhost_user;
VirtQueue *req_vq;
bool connected;
/*< public >*/
};
#endif /* _QEMU_VHOST_USER_RNG_H */

3
include/hw/virtio/vhost-vdpa.h
View File

@ -13,6 +13,7 @@
#define HW_VIRTIO_VHOST_VDPA_H
#include "hw/virtio/virtio.h"
#include "standard-headers/linux/vhost_types.h"
typedef struct VhostVDPAHostNotifier {
MemoryRegion mr;
@ -21,9 +22,11 @@ typedef struct VhostVDPAHostNotifier {
typedef struct vhost_vdpa {
int device_fd;
int index;
uint32_t msg_type;
bool iotlb_batch_begin_sent;
MemoryListener listener;
struct vhost_vdpa_iova_range iova_range;
struct vhost_dev *dev;
VhostVDPAHostNotifier notifier[VIRTIO_QUEUE_MAX];
} VhostVDPA;

2
include/hw/virtio/vhost.h
View File

@ -74,6 +74,8 @@ struct vhost_dev {
unsigned int nvqs;
/* the first virtqueue which would be used by this vhost dev */
int vq_index;
/* the last vq index for the virtio device (not vhost) */
int last_index;
/* if non-zero, minimum required value for max_queues */
int num_queues;
uint64_t features;

2
include/hw/virtio/virtio-iommu.h
View File

@ -26,7 +26,7 @@
#include "qom/object.h"
#define TYPE_VIRTIO_IOMMU "virtio-iommu-device"
#define TYPE_VIRTIO_IOMMU_PCI "virtio-iommu-device-base"
#define TYPE_VIRTIO_IOMMU_PCI "virtio-iommu-pci"
OBJECT_DECLARE_SIMPLE_TYPE(VirtIOIOMMU, VIRTIO_IOMMU)
#define TYPE_VIRTIO_IOMMU_MEMORY_REGION "virtio-iommu-memory-region"

5
include/hw/virtio/virtio-net.h
View File

@ -194,8 +194,9 @@ struct VirtIONet {
NICConf nic_conf;
DeviceState *qdev;
int multiqueue;
uint16_t max_queues;
uint16_t curr_queues;
uint16_t max_queue_pairs;
uint16_t curr_queue_pairs;
uint16_t max_ncs;
size_t config_size;
char *netclient_name;
char *netclient_type;

5
include/net/net.h
View File

@ -105,6 +105,7 @@ struct NetClientState {
int vnet_hdr_len;
bool is_netdev;
bool do_not_pad; /* do not pad to the minimum ethernet frame length */
bool is_datapath;
QTAILQ_HEAD(, NetFilterState) filters;
};
@ -136,6 +137,10 @@ NetClientState *qemu_new_net_client(NetClientInfo *info,
NetClientState *peer,
const char *model,
const char *name);
NetClientState *qemu_new_net_control_client(NetClientInfo *info,
NetClientState *peer,
const char *model,
const char *name);
NICState *qemu_new_nic(NetClientInfo *info,
NICConf *conf,
const char *model,

6
include/net/vhost_net.h
View File

@ -21,8 +21,10 @@ typedef struct VhostNetOptions {
uint64_t vhost_net_get_max_queues(VHostNetState *net);
struct vhost_net *vhost_net_init(VhostNetOptions *options);
int vhost_net_start(VirtIODevice *dev, NetClientState *ncs, int total_queues);
void vhost_net_stop(VirtIODevice *dev, NetClientState *ncs, int total_queues);
int vhost_net_start(VirtIODevice *dev, NetClientState *ncs,
int data_queue_pairs, int cvq);
void vhost_net_stop(VirtIODevice *dev, NetClientState *ncs,
int data_queue_pairs, int cvq);
void vhost_net_cleanup(VHostNetState *net);

6
meson.build
View File

@ -75,6 +75,12 @@ else
kvm_targets = []
endif
kvm_targets_c = ''
if not get_option('kvm').disabled() and targetos == 'linux'
kvm_targets_c = '"' + '" ,"'.join(kvm_targets) + '"'
endif
config_host_data.set('CONFIG_KVM_TARGETS', kvm_targets_c)
accelerator_targets = { 'CONFIG_KVM': kvm_targets }
if cpu in ['aarch64']

24
net/net.c
View File

@ -239,7 +239,8 @@ static void qemu_net_client_setup(NetClientState *nc,
NetClientState *peer,
const char *model,
const char *name,
NetClientDestructor *destructor)
NetClientDestructor *destructor,
bool is_datapath)
{
nc->info = info;
nc->model = g_strdup(model);
@ -258,6 +259,7 @@ static void qemu_net_client_setup(NetClientState *nc,
nc->incoming_queue = qemu_new_net_queue(qemu_deliver_packet_iov, nc);
nc->destructor = destructor;
nc->is_datapath = is_datapath;
QTAILQ_INIT(&nc->filters);
}
@ -272,7 +274,23 @@ NetClientState *qemu_new_net_client(NetClientInfo *info,
nc = g_malloc0(info->size);
qemu_net_client_setup(nc, info, peer, model, name,
qemu_net_client_destructor);
qemu_net_client_destructor, true);
return nc;
}
NetClientState *qemu_new_net_control_client(NetClientInfo *info,
NetClientState *peer,
const char *model,
const char *name)
{
NetClientState *nc;
assert(info->size >= sizeof(NetClientState));
nc = g_malloc0(info->size);
qemu_net_client_setup(nc, info, peer, model, name,
qemu_net_client_destructor, false);
return nc;
}
@ -297,7 +315,7 @@ NICState *qemu_new_nic(NetClientInfo *info,
for (i = 0; i < queues; i++) {
qemu_net_client_setup(&nic->ncs[i], info, peers[i], model, name,
NULL);
NULL, true);
nic->ncs[i].queue_index = i;
}

125
net/vhost-vdpa.c
View File

@ -18,6 +18,7 @@
#include "qemu/error-report.h"
#include "qemu/option.h"
#include "qapi/error.h"
#include <linux/vhost.h>
#include <sys/ioctl.h>
#include <err.h>
#include "standard-headers/linux/virtio_net.h"
@ -51,6 +52,14 @@ const int vdpa_feature_bits[] = {
VIRTIO_NET_F_HOST_UFO,
VIRTIO_NET_F_MRG_RXBUF,
VIRTIO_NET_F_MTU,
VIRTIO_NET_F_CTRL_RX,
VIRTIO_NET_F_CTRL_RX_EXTRA,
VIRTIO_NET_F_CTRL_VLAN,
VIRTIO_NET_F_GUEST_ANNOUNCE,
VIRTIO_NET_F_CTRL_MAC_ADDR,
VIRTIO_NET_F_RSS,
VIRTIO_NET_F_MQ,
VIRTIO_NET_F_CTRL_VQ,
VIRTIO_F_IOMMU_PLATFORM,
VIRTIO_F_RING_PACKED,
VIRTIO_NET_F_RSS,
@ -81,7 +90,8 @@ static int vhost_vdpa_net_check_device_id(struct vhost_net *net)
return ret;
}
static int vhost_vdpa_add(NetClientState *ncs, void *be)
static int vhost_vdpa_add(NetClientState *ncs, void *be,
int queue_pair_index, int nvqs)
{
VhostNetOptions options;
struct vhost_net *net = NULL;
@ -94,7 +104,7 @@ static int vhost_vdpa_add(NetClientState *ncs, void *be)
options.net_backend = ncs;
options.opaque = be;
options.busyloop_timeout = 0;
options.nvqs = 2;
options.nvqs = nvqs;
net = vhost_net_init(&options);
if (!net) {
@ -169,36 +179,125 @@ static NetClientInfo net_vhost_vdpa_info = {
.check_peer_type = vhost_vdpa_check_peer_type,
};
static int net_vhost_vdpa_init(NetClientState *peer, const char *device,
const char *name, const char *vhostdev)
static NetClientState *net_vhost_vdpa_init(NetClientState *peer,
const char *device,
const char *name,
int vdpa_device_fd,
int queue_pair_index,
int nvqs,
bool is_datapath)
{
NetClientState *nc = NULL;
VhostVDPAState *s;
int vdpa_device_fd = -1;
int ret = 0;
assert(name);
nc = qemu_new_net_client(&net_vhost_vdpa_info, peer, device, name);
if (is_datapath) {
nc = qemu_new_net_client(&net_vhost_vdpa_info, peer, device,
name);
} else {
nc = qemu_new_net_control_client(&net_vhost_vdpa_info, peer,
device, name);
}
snprintf(nc->info_str, sizeof(nc->info_str), TYPE_VHOST_VDPA);
s = DO_UPCAST(VhostVDPAState, nc, nc);
vdpa_device_fd = qemu_open_old(vhostdev, O_RDWR);
if (vdpa_device_fd == -1) {
return -errno;
}
s->vhost_vdpa.device_fd = vdpa_device_fd;
ret = vhost_vdpa_add(nc, (void *)&s->vhost_vdpa);
s->vhost_vdpa.index = queue_pair_index;
ret = vhost_vdpa_add(nc, (void *)&s->vhost_vdpa, queue_pair_index, nvqs);
if (ret) {
qemu_close(vdpa_device_fd);
qemu_del_net_client(nc);
return NULL;
}
return nc;
}
static int vhost_vdpa_get_max_queue_pairs(int fd, int *has_cvq, Error **errp)
{
unsigned long config_size = offsetof(struct vhost_vdpa_config, buf);
struct vhost_vdpa_config *config;
__virtio16 *max_queue_pairs;
uint64_t features;
int ret;
ret = ioctl(fd, VHOST_GET_FEATURES, &features);
if (ret) {
error_setg(errp, "Fail to query features from vhost-vDPA device");
return ret;
}
if (features & (1 << VIRTIO_NET_F_CTRL_VQ)) {
*has_cvq = 1;
} else {
*has_cvq = 0;
}
if (features & (1 << VIRTIO_NET_F_MQ)) {
config = g_malloc0(config_size + sizeof(*max_queue_pairs));
config->off = offsetof(struct virtio_net_config, max_virtqueue_pairs);
config->len = sizeof(*max_queue_pairs);
ret = ioctl(fd, VHOST_VDPA_GET_CONFIG, config);
if (ret) {
error_setg(errp, "Fail to get config from vhost-vDPA device");
return -ret;
}
max_queue_pairs = (__virtio16 *)&config->buf;
return lduw_le_p(max_queue_pairs);
}
return 1;
}
int net_init_vhost_vdpa(const Netdev *netdev, const char *name,
NetClientState *peer, Error **errp)
{
const NetdevVhostVDPAOptions *opts;
int vdpa_device_fd;
NetClientState **ncs, *nc;
int queue_pairs, i, has_cvq = 0;
assert(netdev->type == NET_CLIENT_DRIVER_VHOST_VDPA);
opts = &netdev->u.vhost_vdpa;
return net_vhost_vdpa_init(peer, TYPE_VHOST_VDPA, name, opts->vhostdev);
vdpa_device_fd = qemu_open_old(opts->vhostdev, O_RDWR);
if (vdpa_device_fd == -1) {
return -errno;
}
queue_pairs = vhost_vdpa_get_max_queue_pairs(vdpa_device_fd,
&has_cvq, errp);
if (queue_pairs < 0) {
qemu_close(vdpa_device_fd);
return queue_pairs;
}
ncs = g_malloc0(sizeof(*ncs) * queue_pairs);
for (i = 0; i < queue_pairs; i++) {
ncs[i] = net_vhost_vdpa_init(peer, TYPE_VHOST_VDPA, name,
vdpa_device_fd, i, 2, true);
if (!ncs[i])
goto err;
}
if (has_cvq) {
nc = net_vhost_vdpa_init(peer, TYPE_VHOST_VDPA, name,
vdpa_device_fd, i, 1, false);
if (!nc)
goto err;
}
g_free(ncs);
return 0;
err:
if (i) {
qemu_del_net_client(ncs[0]);
}
qemu_close(vdpa_device_fd);
g_free(ncs);
return -1;
}

6
softmmu/qdev-monitor.c
View File

@ -639,11 +639,6 @@ DeviceState *qdev_device_add_from_qdict(const QDict *opts,
}
}
if (qdict_haskey(opts, "failover_pair_id")) {
if (!qdict_haskey(opts, "id")) {
error_setg(errp, "Device with failover_pair_id don't have id");
return NULL;
}
if (qdev_should_hide_device(opts, from_json, errp)) {
if (bus && !qbus_is_hotpluggable(bus)) {
error_setg(errp, QERR_BUS_NO_HOTPLUG, bus->name);
@ -652,7 +647,6 @@ DeviceState *qdev_device_add_from_qdict(const QDict *opts,
} else if (*errp) {
return NULL;
}
}
if (phase_check(PHASE_MACHINE_READY) && bus && !qbus_is_hotpluggable(bus)) {
error_setg(errp, QERR_BUS_NO_HOTPLUG, bus->name);

1
subprojects/libvhost-user/libvhost-user.c
View File

@ -816,6 +816,7 @@ vu_rem_mem_reg(VuDev *dev, VhostUserMsg *vmsg) {
shadow_regions[j].gpa = dev->regions[i].gpa;
shadow_regions[j].size = dev->regions[i].size;
shadow_regions[j].qva = dev->regions[i].qva;
shadow_regions[j].mmap_addr = dev->regions[i].mmap_addr;
shadow_regions[j].mmap_offset = dev->regions[i].mmap_offset;
j++;
} else {

BIN
tests/data/acpi/q35/APIC.xapic Normal file
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tests/data/acpi/q35/DMAR.dmar Normal file
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tests/data/acpi/q35/DSDT.ivrs Normal file
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tests/data/acpi/q35/DSDT.multi-bridge Normal file
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tests/data/acpi/q35/DSDT.xapic Normal file
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tests/data/acpi/q35/FACP.xapic Normal file
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tests/data/acpi/q35/IVRS.ivrs Normal file
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tests/data/acpi/q35/SRAT.xapic Normal file
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22
tests/data/acpi/rebuild-expected-aml.sh
View File

@ -12,7 +12,7 @@
# This work is licensed under the terms of the GNU GPLv2.
# See the COPYING.LIB file in the top-level directory.
qemu_bins="./qemu-system-x86_64 ./qemu-system-aarch64"
qemu_arches="x86_64 aarch64"
if [ ! -e "tests/qtest/bios-tables-test" ]; then
echo "Test: bios-tables-test is required! Run make check before this script."
@ -20,6 +20,26 @@ if [ ! -e "tests/qtest/bios-tables-test" ]; then
exit 1;
fi
if grep TARGET_DIRS= config-host.mak; then
for arch in $qemu_arches; do
if grep TARGET_DIRS= config-host.mak | grep "$arch"-softmmu;
then
qemu_bins="$qemu_bins ./qemu-system-$arch"
fi
done
else
echo "config-host.mak missing!"
echo "Run this script from the build directory."
exit 1;
fi
if [ -z "$qemu_bins" ]; then
echo "Only the following architectures are currently supported: $qemu_arches"
echo "None of these configured!"
echo "To fix, run configure --target-list=x86_64-softmmu,aarch64-softmmu"
exit 1;
fi
for qemu in $qemu_bins; do
if [ ! -e $qemu ]; then
echo "Run 'make' to build the following QEMU executables: $qemu_bins"

14
tests/qtest/acpi-utils.c
View File

@ -98,6 +98,20 @@ void acpi_fetch_table(QTestState *qts, uint8_t **aml, uint32_t *aml_len,
ACPI_ASSERT_CMP(**aml, sig);
}
if (verify_checksum) {
if (acpi_calc_checksum(*aml, *aml_len)) {
gint fd, ret;
char *fname = NULL;
GError *error = NULL;
fprintf(stderr, "Invalid '%.4s'(%d)\n", *aml, *aml_len);
fd = g_file_open_tmp("malformed-XXXXXX.dat", &fname, &error);
g_assert_no_error(error);
fprintf(stderr, "Dumping invalid table into '%s'\n", fname);
ret = qemu_write_full(fd, *aml, *aml_len);
g_assert(ret == *aml_len);
close(fd);
g_free(fname);
}
g_assert(!acpi_calc_checksum(*aml, *aml_len));
}
}

29
tests/qtest/arm-cpu-features.c
View File

@ -26,21 +26,6 @@
" 'arguments': { 'type': 'full', "
#define QUERY_TAIL "}}"
static bool kvm_enabled(QTestState *qts)
{
QDict *resp, *qdict;
bool enabled;
resp = qtest_qmp(qts, "{ 'execute': 'query-kvm' }");
g_assert(qdict_haskey(resp, "return"));
qdict = qdict_get_qdict(resp, "return");
g_assert(qdict_haskey(qdict, "enabled"));
enabled = qdict_get_bool(qdict, "enabled");
qobject_unref(resp);
return enabled;
}
static QDict *do_query_no_props(QTestState *qts, const char *cpu_type)
{
return qtest_qmp(qts, QUERY_HEAD "'model': { 'name': %s }"
@ -506,14 +491,6 @@ static void test_query_cpu_model_expansion_kvm(const void *data)
qts = qtest_init(MACHINE_KVM "-cpu max");
/*
* These tests target the 'host' CPU type, so KVM must be enabled.
*/
if (!kvm_enabled(qts)) {
qtest_quit(qts);
return;
}
/* Enabling and disabling kvm-no-adjvtime should always work. */
assert_has_feature_disabled(qts, "host", "kvm-no-adjvtime");
assert_set_feature(qts, "host", "kvm-no-adjvtime", true);
@ -637,7 +614,11 @@ int main(int argc, char **argv)
* order avoid attempting to run an AArch32 QEMU with KVM on
* AArch64 hosts. That won't work and isn't easy to detect.
*/
if (g_str_equal(qtest_get_arch(), "aarch64")) {
if (g_str_equal(qtest_get_arch(), "aarch64") && qtest_has_accel("kvm")) {
/*
* This tests target the 'host' CPU type, so register it only if
* KVM is available.
*/
qtest_add_data_func("/arm/kvm/query-cpu-model-expansion",
NULL, test_query_cpu_model_expansion_kvm);
}

104
tests/qtest/bios-tables-test.c
View File

@ -271,19 +271,28 @@ static void dump_aml_files(test_data *data, bool rebuild)
}
}
static bool create_tmp_asl(AcpiSdtTable *sdt)
{
GError *error = NULL;
gint fd;
fd = g_file_open_tmp("asl-XXXXXX.dsl", &sdt->asl_file, &error);
g_assert_no_error(error);
close(fd);
return false;
}
static bool load_asl(GArray *sdts, AcpiSdtTable *sdt)
{
AcpiSdtTable *temp;
GError *error = NULL;
GString *command_line = g_string_new(iasl);
gint fd;
gchar *out, *out_err;
gboolean ret;
int i;
fd = g_file_open_tmp("asl-XXXXXX.dsl", &sdt->asl_file, &error);
g_assert_no_error(error);
close(fd);
create_tmp_asl(sdt);
/* build command line */
g_string_append_printf(command_line, " -p %s ", sdt->asl_file);
@ -463,11 +472,20 @@ static void test_acpi_asl(test_data *data)
err = load_asl(data->tables, sdt);
asl = normalize_asl(sdt->asl);
/*
* If expected file is empty - it's likely that it was a stub just
* created for step 1 above: we do want to decompile the actual one.
*/
if (exp_sdt->aml_len) {
exp_err = load_asl(exp_data.tables, exp_sdt);
exp_asl = normalize_asl(exp_sdt->asl);
} else {
exp_err = create_tmp_asl(exp_sdt);
exp_asl = g_string_new("");
}
/* TODO: check for warnings */
g_assert(!err || exp_err);
g_assert(!err || exp_err || !exp_sdt->aml_len);
if (g_strcmp0(asl->str, exp_asl->str)) {
sdt->tmp_files_retain = true;
@ -722,13 +740,6 @@ static void test_acpi_one(const char *params, test_data *data)
char *args;
bool use_uefi = data->uefi_fl1 && data->uefi_fl2;
#ifndef CONFIG_TCG
if (data->tcg_only) {
g_test_skip("TCG disabled, skipping ACPI tcg_only test");
return;
}
#endif /* CONFIG_TCG */
args = test_acpi_create_args(data, params, use_uefi);
data->qts = qtest_init(args);
test_acpi_load_tables(data, use_uefi);
@ -859,6 +870,23 @@ static void test_acpi_q35_tcg_bridge(void)
free_test_data(&data);
}
static void test_acpi_q35_multif_bridge(void)
{
test_data data = {
.machine = MACHINE_Q35,
.variant = ".multi-bridge",
};
test_acpi_one("-device pcie-root-port,id=pcie-root-port-0,"
"multifunction=on,"
"port=0x0,chassis=1,addr=0x2,bus=pcie.0 "
"-device pcie-root-port,id=pcie-root-port-1,"
"port=0x1,chassis=2,addr=0x3.0x1,bus=pcie.0 "
"-device virtio-balloon,id=balloon0,"
"bus=pcie.0,addr=0x4.0x2",
&data);
free_test_data(&data);
}
static void test_acpi_q35_tcg_mmio64(void)
{
test_data data = {
@ -1033,6 +1061,19 @@ static void test_acpi_q35_tcg_numamem(void)
free_test_data(&data);
}
static void test_acpi_q35_kvm_xapic(void)
{
test_data data;
memset(&data, 0, sizeof(data));
data.machine = MACHINE_Q35;
data.variant = ".xapic";
test_acpi_one(" -object memory-backend-ram,id=ram0,size=128M"
" -numa node -numa node,memdev=ram0"
" -machine kernel-irqchip=on -smp 1,maxcpus=288", &data);
free_test_data(&data);
}
static void test_acpi_q35_tcg_nosmm(void)
{
test_data data;
@ -1077,6 +1118,30 @@ static void test_acpi_q35_tcg_nohpet(void)
free_test_data(&data);
}
static void test_acpi_q35_kvm_dmar(void)
{
test_data data;
memset(&data, 0, sizeof(data));
data.machine = MACHINE_Q35;
data.variant = ".dmar";
test_acpi_one("-machine kernel-irqchip=split -accel kvm"
" -device intel-iommu,intremap=on,device-iotlb=on", &data);
free_test_data(&data);
}
static void test_acpi_q35_tcg_ivrs(void)
{
test_data data;
memset(&data, 0, sizeof(data));
data.machine = MACHINE_Q35;
data.variant = ".ivrs";
data.tcg_only = true,
test_acpi_one(" -device amd-iommu", &data);
free_test_data(&data);
}
static void test_acpi_piix4_tcg_numamem(void)
{
test_data data;
@ -1393,9 +1458,6 @@ static void test_acpi_virt_tcg(void)
.scan_len = 128ULL * 1024 * 1024,
};
test_acpi_one("-cpu cortex-a57", &data);
free_test_data(&data);
data.smbios_cpu_max_speed = 2900;
data.smbios_cpu_curr_speed = 2700;
test_acpi_one("-cpu cortex-a57 "
@ -1509,6 +1571,8 @@ static void test_acpi_oem_fields_virt(void)
int main(int argc, char *argv[])
{
const char *arch = qtest_get_arch();
const bool has_kvm = qtest_has_accel("kvm");
const bool has_tcg = qtest_has_accel("tcg");
int ret;
g_test_init(&argc, &argv, NULL);
@ -1534,6 +1598,7 @@ int main(int argc, char *argv[])
test_acpi_piix4_no_acpi_pci_hotplug);
qtest_add_func("acpi/q35", test_acpi_q35_tcg);
qtest_add_func("acpi/q35/bridge", test_acpi_q35_tcg_bridge);
qtest_add_func("acpi/q35/multif-bridge", test_acpi_q35_multif_bridge);
qtest_add_func("acpi/q35/mmio64", test_acpi_q35_tcg_mmio64);
qtest_add_func("acpi/piix4/ipmi", test_acpi_piix4_tcg_ipmi);
qtest_add_func("acpi/q35/ipmi", test_acpi_q35_tcg_ipmi);
@ -1564,16 +1629,25 @@ int main(int argc, char *argv[])
qtest_add_func("acpi/microvm/rtc", test_acpi_microvm_rtc_tcg);
qtest_add_func("acpi/microvm/ioapic2", test_acpi_microvm_ioapic2_tcg);
qtest_add_func("acpi/microvm/oem-fields", test_acpi_oem_fields_microvm);
if (has_tcg) {
qtest_add_func("acpi/q35/ivrs", test_acpi_q35_tcg_ivrs);
if (strcmp(arch, "x86_64") == 0) {
qtest_add_func("acpi/microvm/pcie", test_acpi_microvm_pcie_tcg);
}
}
if (has_kvm) {
qtest_add_func("acpi/q35/kvm/xapic", test_acpi_q35_kvm_xapic);
qtest_add_func("acpi/q35/kvm/dmar", test_acpi_q35_kvm_dmar);
}
} else if (strcmp(arch, "aarch64") == 0) {
if (has_tcg) {
qtest_add_func("acpi/virt", test_acpi_virt_tcg);
qtest_add_func("acpi/virt/numamem", test_acpi_virt_tcg_numamem);
qtest_add_func("acpi/virt/memhp", test_acpi_virt_tcg_memhp);
qtest_add_func("acpi/virt/pxb", test_acpi_virt_tcg_pxb);
qtest_add_func("acpi/virt/oem-fields", test_acpi_oem_fields_virt);
}
}
ret = g_test_run();
boot_sector_cleanup(disk);
return ret;

8
tests/qtest/libqos/libqtest.h
View File

@ -588,6 +588,14 @@ bool qtest_big_endian(QTestState *s);
*/
const char *qtest_get_arch(void);
/**
* qtest_has_accel:
* @accel_name: Accelerator name to check for.
*
* Returns: true if the accelerator is built in.
*/
bool qtest_has_accel(const char *accel_name);
/**
* qtest_add_func:
* @str: Test case path.

27
tests/qtest/libqtest.c
View File

@ -922,6 +922,33 @@ const char *qtest_get_arch(void)
return end + 1;
}
bool qtest_has_accel(const char *accel_name)
{
if (g_str_equal(accel_name, "tcg")) {
#if defined(CONFIG_TCG)
return true;
#else
return false;
#endif
} else if (g_str_equal(accel_name, "kvm")) {
int i;
const char *arch = qtest_get_arch();
const char *targets[] = { CONFIG_KVM_TARGETS };
for (i = 0; i < ARRAY_SIZE(targets); i++) {
if (!strncmp(targets[i], arch, strlen(arch))) {
if (!access("/dev/kvm", R_OK | W_OK)) {
return true;
}
}
}
} else {
/* not implemented */
g_assert_not_reached();
}
return false;
}
bool qtest_get_irq(QTestState *s, int num)
{
/* dummy operation in order to make sure irq is up to date */

15
tests/qtest/migration-test.c
View File

@ -1420,6 +1420,7 @@ static bool kvm_dirty_ring_supported(void)
int main(int argc, char **argv)
{
char template[] = "/tmp/migration-test-XXXXXX";
const bool has_kvm = qtest_has_accel("kvm");
int ret;
g_test_init(&argc, &argv, NULL);
@ -1434,8 +1435,7 @@ int main(int argc, char **argv)
* some reason)
*/
if (g_str_equal(qtest_get_arch(), "ppc64") &&
(access("/sys/module/kvm_hv", F_OK) ||
access("/dev/kvm", R_OK | W_OK))) {
(!has_kvm || access("/sys/module/kvm_hv", F_OK))) {
g_test_message("Skipping test: kvm_hv not available");
return g_test_run();
}
@ -1444,17 +1444,10 @@ int main(int argc, char **argv)
* Similar to ppc64, s390x seems to be touchy with TCG, so disable it
* there until the problems are resolved
*/
if (g_str_equal(qtest_get_arch(), "s390x")) {
#if defined(HOST_S390X)
if (access("/dev/kvm", R_OK | W_OK)) {
g_test_message("Skipping test: kvm not available");
if (g_str_equal(qtest_get_arch(), "s390x") && !has_kvm) {
g_test_message("Skipping test: s390x host with KVM is required");
return g_test_run();
}
#else
g_test_message("Skipping test: Need s390x host to work properly");
return g_test_run();
#endif
}
tmpfs = mkdtemp(template);
if (!tmpfs) {

4
tests/qtest/vhost-user-blk-test.c
View File

@ -906,9 +906,9 @@ static void start_vhost_user_blk(GString *cmd_line, int vus_instances,
img_path = drive_create();
g_string_append_printf(storage_daemon_command,
"--blockdev driver=file,node-name=disk%d,filename=%s "
"--export type=vhost-user-blk,id=disk%d,addr.type=unix,addr.path=%s,"
"--export type=vhost-user-blk,id=disk%d,addr.type=fd,addr.str=%d,"
"node-name=disk%i,writable=on,num-queues=%d ",
i, img_path, i, sock_path, i, num_queues);
i, img_path, i, fd, i, num_queues);
g_string_append_printf(cmd_line, "-chardev socket,id=char%d,path=%s ",
i + 1, sock_path);