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-rw-r--r--hw/virtio/vdpa-dev.c5
-rw-r--r--hw/virtio/vhost-user-base.c23
-rw-r--r--hw/virtio/vhost-user-fs.c23
-rw-r--r--hw/virtio/vhost-user-scmi.c27
-rw-r--r--hw/virtio/vhost-user-vsock.c15
-rw-r--r--hw/virtio/vhost-vdpa.c116
-rw-r--r--hw/virtio/vhost-vsock-common.c12
-rw-r--r--hw/virtio/vhost-vsock.c11
-rw-r--r--hw/virtio/vhost.c23
-rw-r--r--hw/virtio/virtio-balloon.c3
-rw-r--r--hw/virtio/virtio-crypto.c3
-rw-r--r--hw/virtio/virtio-iommu.c3
-rw-r--r--hw/virtio/virtio-mem.c83
-rw-r--r--hw/virtio/virtio-net-pci.c1
-rw-r--r--hw/virtio/virtio-pci.c42
-rw-r--r--hw/virtio/virtio-rng.c5
-rw-r--r--hw/virtio/virtio.c127
17 files changed, 300 insertions, 222 deletions
diff --git a/hw/virtio/vdpa-dev.c b/hw/virtio/vdpa-dev.c
index dd8837c..d1da40a 100644
--- a/hw/virtio/vdpa-dev.c
+++ b/hw/virtio/vdpa-dev.c
@@ -312,7 +312,7 @@ static void vhost_vdpa_device_stop(VirtIODevice *vdev)
vhost_dev_disable_notifiers(&s->dev, vdev);
}
-static void vhost_vdpa_device_set_status(VirtIODevice *vdev, uint8_t status)
+static int vhost_vdpa_device_set_status(VirtIODevice *vdev, uint8_t status)
{
VhostVdpaDevice *s = VHOST_VDPA_DEVICE(vdev);
bool should_start = virtio_device_started(vdev, status);
@@ -324,7 +324,7 @@ static void vhost_vdpa_device_set_status(VirtIODevice *vdev, uint8_t status)
}
if (s->started == should_start) {
- return;
+ return 0;
}
if (should_start) {
@@ -335,6 +335,7 @@ static void vhost_vdpa_device_set_status(VirtIODevice *vdev, uint8_t status)
} else {
vhost_vdpa_device_stop(vdev);
}
+ return 0;
}
static const Property vhost_vdpa_device_properties[] = {
diff --git a/hw/virtio/vhost-user-base.c b/hw/virtio/vhost-user-base.c
index 7714332..ff67a02 100644
--- a/hw/virtio/vhost-user-base.c
+++ b/hw/virtio/vhost-user-base.c
@@ -66,7 +66,7 @@ err_host_notifiers:
vhost_dev_disable_notifiers(&vub->vhost_dev, vdev);
}
-static void vub_stop(VirtIODevice *vdev)
+static int vub_stop(VirtIODevice *vdev)
{
VHostUserBase *vub = VHOST_USER_BASE(vdev);
BusState *qbus = BUS(qdev_get_parent_bus(DEVICE(vdev)));
@@ -74,34 +74,39 @@ static void vub_stop(VirtIODevice *vdev)
int ret;
if (!k->set_guest_notifiers) {
- return;
+ return 0;
}
- vhost_dev_stop(&vub->vhost_dev, vdev, true);
+ ret = vhost_dev_stop(&vub->vhost_dev, vdev, true);
- ret = k->set_guest_notifiers(qbus->parent, vub->vhost_dev.nvqs, false);
- if (ret < 0) {
+ if (k->set_guest_notifiers(qbus->parent, vub->vhost_dev.nvqs, false) < 0) {
error_report("vhost guest notifier cleanup failed: %d", ret);
- return;
+ return -1;
}
vhost_dev_disable_notifiers(&vub->vhost_dev, vdev);
+ return ret;
}
-static void vub_set_status(VirtIODevice *vdev, uint8_t status)
+static int vub_set_status(VirtIODevice *vdev, uint8_t status)
{
VHostUserBase *vub = VHOST_USER_BASE(vdev);
bool should_start = virtio_device_should_start(vdev, status);
if (vhost_dev_is_started(&vub->vhost_dev) == should_start) {
- return;
+ return 0;
}
if (should_start) {
vub_start(vdev);
} else {
- vub_stop(vdev);
+ int ret;
+ ret = vub_stop(vdev);
+ if (ret < 0) {
+ return ret;
+ }
}
+ return 0;
}
/*
diff --git a/hw/virtio/vhost-user-fs.c b/hw/virtio/vhost-user-fs.c
index f6d1fc8..e77c69e 100644
--- a/hw/virtio/vhost-user-fs.c
+++ b/hw/virtio/vhost-user-fs.c
@@ -100,7 +100,7 @@ err_host_notifiers:
vhost_dev_disable_notifiers(&fs->vhost_dev, vdev);
}
-static void vuf_stop(VirtIODevice *vdev)
+static int vuf_stop(VirtIODevice *vdev)
{
VHostUserFS *fs = VHOST_USER_FS(vdev);
BusState *qbus = BUS(qdev_get_parent_bus(DEVICE(vdev)));
@@ -108,34 +108,39 @@ static void vuf_stop(VirtIODevice *vdev)
int ret;
if (!k->set_guest_notifiers) {
- return;
+ return 0;
}
- vhost_dev_stop(&fs->vhost_dev, vdev, true);
+ ret = vhost_dev_stop(&fs->vhost_dev, vdev, true);
- ret = k->set_guest_notifiers(qbus->parent, fs->vhost_dev.nvqs, false);
- if (ret < 0) {
+ if (k->set_guest_notifiers(qbus->parent, fs->vhost_dev.nvqs, false) < 0) {
error_report("vhost guest notifier cleanup failed: %d", ret);
- return;
+ return -1;
}
vhost_dev_disable_notifiers(&fs->vhost_dev, vdev);
+ return ret;
}
-static void vuf_set_status(VirtIODevice *vdev, uint8_t status)
+static int vuf_set_status(VirtIODevice *vdev, uint8_t status)
{
VHostUserFS *fs = VHOST_USER_FS(vdev);
bool should_start = virtio_device_should_start(vdev, status);
if (vhost_dev_is_started(&fs->vhost_dev) == should_start) {
- return;
+ return 0;
}
if (should_start) {
vuf_start(vdev);
} else {
- vuf_stop(vdev);
+ int ret;
+ ret = vuf_stop(vdev);
+ if (ret < 0) {
+ return ret;
+ }
}
+ return 0;
}
static uint64_t vuf_get_features(VirtIODevice *vdev,
diff --git a/hw/virtio/vhost-user-scmi.c b/hw/virtio/vhost-user-scmi.c
index 7a0f622..f9264c4 100644
--- a/hw/virtio/vhost-user-scmi.c
+++ b/hw/virtio/vhost-user-scmi.c
@@ -83,7 +83,7 @@ err_host_notifiers:
return ret;
}
-static void vu_scmi_stop(VirtIODevice *vdev)
+static int vu_scmi_stop(VirtIODevice *vdev)
{
VHostUserSCMI *scmi = VHOST_USER_SCMI(vdev);
BusState *qbus = BUS(qdev_get_parent_bus(DEVICE(vdev)));
@@ -93,41 +93,46 @@ static void vu_scmi_stop(VirtIODevice *vdev)
/* vhost_dev_is_started() check in the callers is not fully reliable. */
if (!scmi->started_vu) {
- return;
+ return 0;
}
scmi->started_vu = false;
if (!k->set_guest_notifiers) {
- return;
+ return 0;
}
- vhost_dev_stop(vhost_dev, vdev, true);
+ ret = vhost_dev_stop(vhost_dev, vdev, true);
- ret = k->set_guest_notifiers(qbus->parent, vhost_dev->nvqs, false);
- if (ret < 0) {
+ if (k->set_guest_notifiers(qbus->parent, vhost_dev->nvqs, false) < 0) {
error_report("vhost guest notifier cleanup failed: %d", ret);
- return;
+ return -1;
}
vhost_dev_disable_notifiers(vhost_dev, vdev);
+ return ret;
}
-static void vu_scmi_set_status(VirtIODevice *vdev, uint8_t status)
+static int vu_scmi_set_status(VirtIODevice *vdev, uint8_t status)
{
VHostUserSCMI *scmi = VHOST_USER_SCMI(vdev);
bool should_start = virtio_device_should_start(vdev, status);
if (!scmi->connected) {
- return;
+ return -1;
}
if (vhost_dev_is_started(&scmi->vhost_dev) == should_start) {
- return;
+ return 0;
}
if (should_start) {
vu_scmi_start(vdev);
} else {
- vu_scmi_stop(vdev);
+ int ret;
+ ret = vu_scmi_stop(vdev);
+ if (ret < 0) {
+ return ret;
+ }
}
+ return 0;
}
static uint64_t vu_scmi_get_features(VirtIODevice *vdev, uint64_t features,
diff --git a/hw/virtio/vhost-user-vsock.c b/hw/virtio/vhost-user-vsock.c
index 2776792..993c287 100644
--- a/hw/virtio/vhost-user-vsock.c
+++ b/hw/virtio/vhost-user-vsock.c
@@ -54,23 +54,28 @@ const VhostDevConfigOps vsock_ops = {
.vhost_dev_config_notifier = vuv_handle_config_change,
};
-static void vuv_set_status(VirtIODevice *vdev, uint8_t status)
+static int vuv_set_status(VirtIODevice *vdev, uint8_t status)
{
VHostVSockCommon *vvc = VHOST_VSOCK_COMMON(vdev);
bool should_start = virtio_device_should_start(vdev, status);
+ int ret;
if (vhost_dev_is_started(&vvc->vhost_dev) == should_start) {
- return;
+ return 0;
}
if (should_start) {
- int ret = vhost_vsock_common_start(vdev);
+ ret = vhost_vsock_common_start(vdev);
if (ret < 0) {
- return;
+ return ret;
}
} else {
- vhost_vsock_common_stop(vdev);
+ ret = vhost_vsock_common_stop(vdev);
+ if (ret < 0) {
+ return ret;
+ }
}
+ return 0;
}
static uint64_t vuv_get_features(VirtIODevice *vdev,
diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c
index 1ab2c11..7061b6e 100644
--- a/hw/virtio/vhost-vdpa.c
+++ b/hw/virtio/vhost-vdpa.c
@@ -209,6 +209,8 @@ static void vhost_vdpa_iommu_map_notify(IOMMUNotifier *n, IOMMUTLBEntry *iotlb)
int ret;
Int128 llend;
Error *local_err = NULL;
+ MemoryRegion *mr;
+ hwaddr xlat;
if (iotlb->target_as != &address_space_memory) {
error_report("Wrong target AS \"%s\", only system memory is allowed",
@@ -228,11 +230,14 @@ static void vhost_vdpa_iommu_map_notify(IOMMUNotifier *n, IOMMUTLBEntry *iotlb)
if ((iotlb->perm & IOMMU_RW) != IOMMU_NONE) {
bool read_only;
- if (!memory_get_xlat_addr(iotlb, &vaddr, NULL, &read_only, NULL,
- &local_err)) {
+ mr = memory_translate_iotlb(iotlb, &xlat, &local_err);
+ if (!mr) {
error_report_err(local_err);
return;
}
+ vaddr = memory_region_get_ram_ptr(mr) + xlat;
+ read_only = !(iotlb->perm & IOMMU_WO) || mr->readonly;
+
ret = vhost_vdpa_dma_map(s, VHOST_VDPA_GUEST_PA_ASID, iova,
iotlb->addr_mask + 1, vaddr, read_only);
if (ret) {
@@ -594,6 +599,36 @@ static void vhost_vdpa_init_svq(struct vhost_dev *hdev, struct vhost_vdpa *v)
v->shadow_vqs = g_steal_pointer(&shadow_vqs);
}
+static int vhost_vdpa_set_backend_cap(struct vhost_dev *dev)
+{
+ struct vhost_vdpa *v = dev->opaque;
+
+ uint64_t features;
+ uint64_t f = 0x1ULL << VHOST_BACKEND_F_IOTLB_MSG_V2 |
+ 0x1ULL << VHOST_BACKEND_F_IOTLB_BATCH |
+ 0x1ULL << VHOST_BACKEND_F_IOTLB_ASID |
+ 0x1ULL << VHOST_BACKEND_F_SUSPEND;
+ int r;
+
+ if (vhost_vdpa_call(dev, VHOST_GET_BACKEND_FEATURES, &features)) {
+ return -EFAULT;
+ }
+
+ features &= f;
+
+ if (vhost_vdpa_first_dev(dev)) {
+ r = vhost_vdpa_call(dev, VHOST_SET_BACKEND_FEATURES, &features);
+ if (r) {
+ return -EFAULT;
+ }
+ }
+
+ dev->backend_cap = features;
+ v->shared->backend_cap = features;
+
+ return 0;
+}
+
static int vhost_vdpa_init(struct vhost_dev *dev, void *opaque, Error **errp)
{
struct vhost_vdpa *v = opaque;
@@ -603,7 +638,12 @@ static int vhost_vdpa_init(struct vhost_dev *dev, void *opaque, Error **errp)
v->dev = dev;
dev->opaque = opaque ;
- v->shared->listener = vhost_vdpa_memory_listener;
+
+ ret = vhost_vdpa_set_backend_cap(dev);
+ if (unlikely(ret != 0)) {
+ return ret;
+ }
+
vhost_vdpa_init_svq(dev, v);
error_propagate(&dev->migration_blocker, v->migration_blocker);
@@ -639,6 +679,7 @@ static int vhost_vdpa_init(struct vhost_dev *dev, void *opaque, Error **errp)
vhost_vdpa_add_status(dev, VIRTIO_CONFIG_S_ACKNOWLEDGE |
VIRTIO_CONFIG_S_DRIVER);
+ v->shared->listener = vhost_vdpa_memory_listener;
return 0;
}
@@ -841,36 +882,6 @@ static int vhost_vdpa_set_features(struct vhost_dev *dev,
return vhost_vdpa_add_status(dev, VIRTIO_CONFIG_S_FEATURES_OK);
}
-static int vhost_vdpa_set_backend_cap(struct vhost_dev *dev)
-{
- struct vhost_vdpa *v = dev->opaque;
-
- uint64_t features;
- uint64_t f = 0x1ULL << VHOST_BACKEND_F_IOTLB_MSG_V2 |
- 0x1ULL << VHOST_BACKEND_F_IOTLB_BATCH |
- 0x1ULL << VHOST_BACKEND_F_IOTLB_ASID |
- 0x1ULL << VHOST_BACKEND_F_SUSPEND;
- int r;
-
- if (vhost_vdpa_call(dev, VHOST_GET_BACKEND_FEATURES, &features)) {
- return -EFAULT;
- }
-
- features &= f;
-
- if (vhost_vdpa_first_dev(dev)) {
- r = vhost_vdpa_call(dev, VHOST_SET_BACKEND_FEATURES, &features);
- if (r) {
- return -EFAULT;
- }
- }
-
- dev->backend_cap = features;
- v->shared->backend_cap = features;
-
- return 0;
-}
-
static int vhost_vdpa_get_device_id(struct vhost_dev *dev,
uint32_t *device_id)
{
@@ -888,8 +899,14 @@ static int vhost_vdpa_reset_device(struct vhost_dev *dev)
ret = vhost_vdpa_call(dev, VHOST_VDPA_SET_STATUS, &status);
trace_vhost_vdpa_reset_device(dev);
+ if (ret) {
+ return ret;
+ }
+
+ memory_listener_unregister(&v->shared->listener);
+ v->shared->listener_registered = false;
v->suspended = false;
- return ret;
+ return 0;
}
static int vhost_vdpa_get_vq_index(struct vhost_dev *dev, int idx)
@@ -1373,7 +1390,15 @@ static int vhost_vdpa_dev_start(struct vhost_dev *dev, bool started)
"IOMMU and try again");
return -1;
}
- memory_listener_register(&v->shared->listener, dev->vdev->dma_as);
+ if (v->shared->listener_registered &&
+ dev->vdev->dma_as != v->shared->listener.address_space) {
+ memory_listener_unregister(&v->shared->listener);
+ v->shared->listener_registered = false;
+ }
+ if (!v->shared->listener_registered) {
+ memory_listener_register(&v->shared->listener, dev->vdev->dma_as);
+ v->shared->listener_registered = true;
+ }
return vhost_vdpa_add_status(dev, VIRTIO_CONFIG_S_DRIVER_OK);
}
@@ -1383,8 +1408,6 @@ static int vhost_vdpa_dev_start(struct vhost_dev *dev, bool started)
static void vhost_vdpa_reset_status(struct vhost_dev *dev)
{
- struct vhost_vdpa *v = dev->opaque;
-
if (!vhost_vdpa_last_dev(dev)) {
return;
}
@@ -1392,7 +1415,6 @@ static void vhost_vdpa_reset_status(struct vhost_dev *dev)
vhost_vdpa_reset_device(dev);
vhost_vdpa_add_status(dev, VIRTIO_CONFIG_S_ACKNOWLEDGE |
VIRTIO_CONFIG_S_DRIVER);
- memory_listener_unregister(&v->shared->listener);
}
static int vhost_vdpa_set_log_base(struct vhost_dev *dev, uint64_t base,
@@ -1526,12 +1548,27 @@ static int vhost_vdpa_get_features(struct vhost_dev *dev,
static int vhost_vdpa_set_owner(struct vhost_dev *dev)
{
+ int r;
+ struct vhost_vdpa *v;
+
if (!vhost_vdpa_first_dev(dev)) {
return 0;
}
trace_vhost_vdpa_set_owner(dev);
- return vhost_vdpa_call(dev, VHOST_SET_OWNER, NULL);
+ r = vhost_vdpa_call(dev, VHOST_SET_OWNER, NULL);
+ if (unlikely(r < 0)) {
+ return r;
+ }
+
+ /*
+ * Being optimistic and listening address space memory. If the device
+ * uses vIOMMU, it is changed at vhost_vdpa_dev_start.
+ */
+ v = dev->opaque;
+ memory_listener_register(&v->shared->listener, &address_space_memory);
+ v->shared->listener_registered = true;
+ return 0;
}
static int vhost_vdpa_vq_get_addr(struct vhost_dev *dev,
@@ -1563,7 +1600,6 @@ const VhostOps vdpa_ops = {
.vhost_set_vring_kick = vhost_vdpa_set_vring_kick,
.vhost_set_vring_call = vhost_vdpa_set_vring_call,
.vhost_get_features = vhost_vdpa_get_features,
- .vhost_set_backend_cap = vhost_vdpa_set_backend_cap,
.vhost_set_owner = vhost_vdpa_set_owner,
.vhost_set_vring_endian = NULL,
.vhost_backend_memslots_limit = vhost_vdpa_memslots_limit,
diff --git a/hw/virtio/vhost-vsock-common.c b/hw/virtio/vhost-vsock-common.c
index 4b4fbb4..c6c44d8 100644
--- a/hw/virtio/vhost-vsock-common.c
+++ b/hw/virtio/vhost-vsock-common.c
@@ -95,7 +95,7 @@ err_host_notifiers:
return ret;
}
-void vhost_vsock_common_stop(VirtIODevice *vdev)
+int vhost_vsock_common_stop(VirtIODevice *vdev)
{
VHostVSockCommon *vvc = VHOST_VSOCK_COMMON(vdev);
BusState *qbus = BUS(qdev_get_parent_bus(DEVICE(vdev)));
@@ -103,18 +103,18 @@ void vhost_vsock_common_stop(VirtIODevice *vdev)
int ret;
if (!k->set_guest_notifiers) {
- return;
+ return 0;
}
- vhost_dev_stop(&vvc->vhost_dev, vdev, true);
+ ret = vhost_dev_stop(&vvc->vhost_dev, vdev, true);
- ret = k->set_guest_notifiers(qbus->parent, vvc->vhost_dev.nvqs, false);
- if (ret < 0) {
+ if (k->set_guest_notifiers(qbus->parent, vvc->vhost_dev.nvqs, false) < 0) {
error_report("vhost guest notifier cleanup failed: %d", ret);
- return;
+ return -1;
}
vhost_dev_disable_notifiers(&vvc->vhost_dev, vdev);
+ return ret;
}
diff --git a/hw/virtio/vhost-vsock.c b/hw/virtio/vhost-vsock.c
index b73dc72..6e40888 100644
--- a/hw/virtio/vhost-vsock.c
+++ b/hw/virtio/vhost-vsock.c
@@ -67,37 +67,38 @@ static int vhost_vsock_set_running(VirtIODevice *vdev, int start)
}
-static void vhost_vsock_set_status(VirtIODevice *vdev, uint8_t status)
+static int vhost_vsock_set_status(VirtIODevice *vdev, uint8_t status)
{
VHostVSockCommon *vvc = VHOST_VSOCK_COMMON(vdev);
bool should_start = virtio_device_should_start(vdev, status);
int ret;
if (vhost_dev_is_started(&vvc->vhost_dev) == should_start) {
- return;
+ return 0;
}
if (should_start) {
ret = vhost_vsock_common_start(vdev);
if (ret < 0) {
- return;
+ return 0;
}
ret = vhost_vsock_set_running(vdev, 1);
if (ret < 0) {
vhost_vsock_common_stop(vdev);
error_report("Error starting vhost vsock: %d", -ret);
- return;
+ return 0;
}
} else {
ret = vhost_vsock_set_running(vdev, 0);
if (ret < 0) {
error_report("vhost vsock set running failed: %d", ret);
- return;
+ return 0;
}
vhost_vsock_common_stop(vdev);
}
+ return 0;
}
static uint64_t vhost_vsock_get_features(VirtIODevice *vdev,
diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c
index 4cae7c1..fc43853 100644
--- a/hw/virtio/vhost.c
+++ b/hw/virtio/vhost.c
@@ -1367,10 +1367,10 @@ fail_alloc_desc:
return r;
}
-void vhost_virtqueue_stop(struct vhost_dev *dev,
- struct VirtIODevice *vdev,
- struct vhost_virtqueue *vq,
- unsigned idx)
+int vhost_virtqueue_stop(struct vhost_dev *dev,
+ struct VirtIODevice *vdev,
+ struct vhost_virtqueue *vq,
+ unsigned idx)
{
int vhost_vq_index = dev->vhost_ops->vhost_get_vq_index(dev, idx);
struct vhost_vring_state state = {
@@ -1380,7 +1380,7 @@ void vhost_virtqueue_stop(struct vhost_dev *dev,
if (virtio_queue_get_desc_addr(vdev, idx) == 0) {
/* Don't stop the virtqueue which might have not been started */
- return;
+ return 0;
}
r = dev->vhost_ops->vhost_get_vring_base(dev, &state);
@@ -1411,6 +1411,7 @@ void vhost_virtqueue_stop(struct vhost_dev *dev,
0, virtio_queue_get_avail_size(vdev, idx));
vhost_memory_unmap(dev, vq->desc, virtio_queue_get_desc_size(vdev, idx),
0, virtio_queue_get_desc_size(vdev, idx));
+ return r;
}
static int vhost_virtqueue_set_busyloop_timeout(struct vhost_dev *dev,
@@ -2135,9 +2136,10 @@ fail_features:
}
/* Host notifiers must be enabled at this point. */
-void vhost_dev_stop(struct vhost_dev *hdev, VirtIODevice *vdev, bool vrings)
+int vhost_dev_stop(struct vhost_dev *hdev, VirtIODevice *vdev, bool vrings)
{
int i;
+ int rc = 0;
/* should only be called after backend is connected */
assert(hdev->vhost_ops);
@@ -2156,10 +2158,10 @@ void vhost_dev_stop(struct vhost_dev *hdev, VirtIODevice *vdev, bool vrings)
vhost_dev_set_vring_enable(hdev, false);
}
for (i = 0; i < hdev->nvqs; ++i) {
- vhost_virtqueue_stop(hdev,
- vdev,
- hdev->vqs + i,
- hdev->vq_index + i);
+ rc |= vhost_virtqueue_stop(hdev,
+ vdev,
+ hdev->vqs + i,
+ hdev->vq_index + i);
}
if (hdev->vhost_ops->vhost_reset_status) {
hdev->vhost_ops->vhost_reset_status(hdev);
@@ -2176,6 +2178,7 @@ void vhost_dev_stop(struct vhost_dev *hdev, VirtIODevice *vdev, bool vrings)
hdev->started = false;
vdev->vhost_started = false;
hdev->vdev = NULL;
+ return rc;
}
int vhost_net_set_backend(struct vhost_dev *hdev,
diff --git a/hw/virtio/virtio-balloon.c b/hw/virtio/virtio-balloon.c
index 91510ec..db787d0 100644
--- a/hw/virtio/virtio-balloon.c
+++ b/hw/virtio/virtio-balloon.c
@@ -958,7 +958,7 @@ static void virtio_balloon_device_reset(VirtIODevice *vdev)
s->poison_val = 0;
}
-static void virtio_balloon_set_status(VirtIODevice *vdev, uint8_t status)
+static int virtio_balloon_set_status(VirtIODevice *vdev, uint8_t status)
{
VirtIOBalloon *s = VIRTIO_BALLOON(vdev);
@@ -988,6 +988,7 @@ static void virtio_balloon_set_status(VirtIODevice *vdev, uint8_t status)
qemu_mutex_unlock(&s->free_page_lock);
}
}
+ return 0;
}
static ResettableState *virtio_balloon_get_reset_state(Object *obj)
diff --git a/hw/virtio/virtio-crypto.c b/hw/virtio/virtio-crypto.c
index e24d691..517f208 100644
--- a/hw/virtio/virtio-crypto.c
+++ b/hw/virtio/virtio-crypto.c
@@ -1197,11 +1197,12 @@ static void virtio_crypto_vhost_status(VirtIOCrypto *c, uint8_t status)
}
}
-static void virtio_crypto_set_status(VirtIODevice *vdev, uint8_t status)
+static int virtio_crypto_set_status(VirtIODevice *vdev, uint8_t status)
{
VirtIOCrypto *vcrypto = VIRTIO_CRYPTO(vdev);
virtio_crypto_vhost_status(vcrypto, status);
+ return 0;
}
static void virtio_crypto_guest_notifier_mask(VirtIODevice *vdev, int idx,
diff --git a/hw/virtio/virtio-iommu.c b/hw/virtio/virtio-iommu.c
index 5406098..3500f1b 100644
--- a/hw/virtio/virtio-iommu.c
+++ b/hw/virtio/virtio-iommu.c
@@ -1522,9 +1522,10 @@ static void virtio_iommu_device_reset_exit(Object *obj, ResetType type)
NULL, NULL, virtio_iommu_put_endpoint);
}
-static void virtio_iommu_set_status(VirtIODevice *vdev, uint8_t status)
+static int virtio_iommu_set_status(VirtIODevice *vdev, uint8_t status)
{
trace_virtio_iommu_device_status(status);
+ return 0;
}
static void virtio_iommu_instance_init(Object *obj)
diff --git a/hw/virtio/virtio-mem.c b/hw/virtio/virtio-mem.c
index a3d1a67..c46f6f9 100644
--- a/hw/virtio/virtio-mem.c
+++ b/hw/virtio/virtio-mem.c
@@ -244,28 +244,6 @@ static int virtio_mem_for_each_plugged_range(VirtIOMEM *vmem, void *arg,
return ret;
}
-/*
- * Adjust the memory section to cover the intersection with the given range.
- *
- * Returns false if the intersection is empty, otherwise returns true.
- */
-static bool virtio_mem_intersect_memory_section(MemoryRegionSection *s,
- uint64_t offset, uint64_t size)
-{
- uint64_t start = MAX(s->offset_within_region, offset);
- uint64_t end = MIN(s->offset_within_region + int128_get64(s->size),
- offset + size);
-
- if (end <= start) {
- return false;
- }
-
- s->offset_within_address_space += start - s->offset_within_region;
- s->offset_within_region = start;
- s->size = int128_make64(end - start);
- return true;
-}
-
typedef int (*virtio_mem_section_cb)(MemoryRegionSection *s, void *arg);
static int virtio_mem_for_each_plugged_section(const VirtIOMEM *vmem,
@@ -287,7 +265,7 @@ static int virtio_mem_for_each_plugged_section(const VirtIOMEM *vmem,
first_bit + 1) - 1;
size = (last_bit - first_bit + 1) * vmem->block_size;
- if (!virtio_mem_intersect_memory_section(&tmp, offset, size)) {
+ if (!memory_region_section_intersect_range(&tmp, offset, size)) {
break;
}
ret = cb(&tmp, arg);
@@ -319,7 +297,7 @@ static int virtio_mem_for_each_unplugged_section(const VirtIOMEM *vmem,
first_bit + 1) - 1;
size = (last_bit - first_bit + 1) * vmem->block_size;
- if (!virtio_mem_intersect_memory_section(&tmp, offset, size)) {
+ if (!memory_region_section_intersect_range(&tmp, offset, size)) {
break;
}
ret = cb(&tmp, arg);
@@ -355,7 +333,7 @@ static void virtio_mem_notify_unplug(VirtIOMEM *vmem, uint64_t offset,
QLIST_FOREACH(rdl, &vmem->rdl_list, next) {
MemoryRegionSection tmp = *rdl->section;
- if (!virtio_mem_intersect_memory_section(&tmp, offset, size)) {
+ if (!memory_region_section_intersect_range(&tmp, offset, size)) {
continue;
}
rdl->notify_discard(rdl, &tmp);
@@ -371,7 +349,7 @@ static int virtio_mem_notify_plug(VirtIOMEM *vmem, uint64_t offset,
QLIST_FOREACH(rdl, &vmem->rdl_list, next) {
MemoryRegionSection tmp = *rdl->section;
- if (!virtio_mem_intersect_memory_section(&tmp, offset, size)) {
+ if (!memory_region_section_intersect_range(&tmp, offset, size)) {
continue;
}
ret = rdl->notify_populate(rdl, &tmp);
@@ -388,7 +366,7 @@ static int virtio_mem_notify_plug(VirtIOMEM *vmem, uint64_t offset,
if (rdl2 == rdl) {
break;
}
- if (!virtio_mem_intersect_memory_section(&tmp, offset, size)) {
+ if (!memory_region_section_intersect_range(&tmp, offset, size)) {
continue;
}
rdl2->notify_discard(rdl2, &tmp);
@@ -1070,6 +1048,17 @@ static void virtio_mem_device_realize(DeviceState *dev, Error **errp)
}
/*
+ * Set ourselves as RamDiscardManager before the plug handler maps the
+ * memory region and exposes it via an address space.
+ */
+ if (memory_region_set_ram_discard_manager(&vmem->memdev->mr,
+ RAM_DISCARD_MANAGER(vmem))) {
+ error_setg(errp, "Failed to set RamDiscardManager");
+ ram_block_coordinated_discard_require(false);
+ return;
+ }
+
+ /*
* We don't know at this point whether shared RAM is migrated using
* QEMU or migrated using the file content. "x-ignore-shared" will be
* configured after realizing the device. So in case we have an
@@ -1083,6 +1072,7 @@ static void virtio_mem_device_realize(DeviceState *dev, Error **errp)
ret = ram_block_discard_range(rb, 0, qemu_ram_get_used_length(rb));
if (ret) {
error_setg_errno(errp, -ret, "Unexpected error discarding RAM");
+ memory_region_set_ram_discard_manager(&vmem->memdev->mr, NULL);
ram_block_coordinated_discard_require(false);
return;
}
@@ -1144,13 +1134,6 @@ static void virtio_mem_device_realize(DeviceState *dev, Error **errp)
vmem->system_reset = VIRTIO_MEM_SYSTEM_RESET(obj);
vmem->system_reset->vmem = vmem;
qemu_register_resettable(obj);
-
- /*
- * Set ourselves as RamDiscardManager before the plug handler maps the
- * memory region and exposes it via an address space.
- */
- memory_region_set_ram_discard_manager(&vmem->memdev->mr,
- RAM_DISCARD_MANAGER(vmem));
}
static void virtio_mem_device_unrealize(DeviceState *dev)
@@ -1158,12 +1141,6 @@ static void virtio_mem_device_unrealize(DeviceState *dev)
VirtIODevice *vdev = VIRTIO_DEVICE(dev);
VirtIOMEM *vmem = VIRTIO_MEM(dev);
- /*
- * The unplug handler unmapped the memory region, it cannot be
- * found via an address space anymore. Unset ourselves.
- */
- memory_region_set_ram_discard_manager(&vmem->memdev->mr, NULL);
-
qemu_unregister_resettable(OBJECT(vmem->system_reset));
object_unref(OBJECT(vmem->system_reset));
@@ -1176,6 +1153,11 @@ static void virtio_mem_device_unrealize(DeviceState *dev)
virtio_del_queue(vdev, 0);
virtio_cleanup(vdev);
g_free(vmem->bitmap);
+ /*
+ * The unplug handler unmapped the memory region, it cannot be
+ * found via an address space anymore. Unset ourselves.
+ */
+ memory_region_set_ram_discard_manager(&vmem->memdev->mr, NULL);
ram_block_coordinated_discard_require(false);
}
@@ -1750,7 +1732,7 @@ static bool virtio_mem_rdm_is_populated(const RamDiscardManager *rdm,
}
struct VirtIOMEMReplayData {
- void *fn;
+ ReplayRamDiscardState fn;
void *opaque;
};
@@ -1758,12 +1740,12 @@ static int virtio_mem_rdm_replay_populated_cb(MemoryRegionSection *s, void *arg)
{
struct VirtIOMEMReplayData *data = arg;
- return ((ReplayRamPopulate)data->fn)(s, data->opaque);
+ return data->fn(s, data->opaque);
}
static int virtio_mem_rdm_replay_populated(const RamDiscardManager *rdm,
MemoryRegionSection *s,
- ReplayRamPopulate replay_fn,
+ ReplayRamDiscardState replay_fn,
void *opaque)
{
const VirtIOMEM *vmem = VIRTIO_MEM(rdm);
@@ -1782,14 +1764,13 @@ static int virtio_mem_rdm_replay_discarded_cb(MemoryRegionSection *s,
{
struct VirtIOMEMReplayData *data = arg;
- ((ReplayRamDiscard)data->fn)(s, data->opaque);
- return 0;
+ return data->fn(s, data->opaque);
}
-static void virtio_mem_rdm_replay_discarded(const RamDiscardManager *rdm,
- MemoryRegionSection *s,
- ReplayRamDiscard replay_fn,
- void *opaque)
+static int virtio_mem_rdm_replay_discarded(const RamDiscardManager *rdm,
+ MemoryRegionSection *s,
+ ReplayRamDiscardState replay_fn,
+ void *opaque)
{
const VirtIOMEM *vmem = VIRTIO_MEM(rdm);
struct VirtIOMEMReplayData data = {
@@ -1798,8 +1779,8 @@ static void virtio_mem_rdm_replay_discarded(const RamDiscardManager *rdm,
};
g_assert(s->mr == &vmem->memdev->mr);
- virtio_mem_for_each_unplugged_section(vmem, s, &data,
- virtio_mem_rdm_replay_discarded_cb);
+ return virtio_mem_for_each_unplugged_section(vmem, s, &data,
+ virtio_mem_rdm_replay_discarded_cb);
}
static void virtio_mem_rdm_register_listener(RamDiscardManager *rdm,
diff --git a/hw/virtio/virtio-net-pci.c b/hw/virtio/virtio-net-pci.c
index 8cf9788..f857a84 100644
--- a/hw/virtio/virtio-net-pci.c
+++ b/hw/virtio/virtio-net-pci.c
@@ -74,6 +74,7 @@ static void virtio_net_pci_class_init(ObjectClass *klass, const void *data)
k->device_id = PCI_DEVICE_ID_VIRTIO_NET;
k->revision = VIRTIO_PCI_ABI_VERSION;
k->class_id = PCI_CLASS_NETWORK_ETHERNET;
+ k->sriov_vf_user_creatable = true;
set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
device_class_set_props(dc, virtio_net_properties);
vpciklass->realize = virtio_net_pci_realize;
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index 0fa8fe4..fba2372 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -146,9 +146,7 @@ static const VMStateDescription vmstate_virtio_pci = {
static bool virtio_pci_has_extra_state(DeviceState *d)
{
- VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d);
-
- return proxy->flags & VIRTIO_PCI_FLAG_MIGRATE_EXTRA;
+ return true;
}
static void virtio_pci_save_extra_state(DeviceState *d, QEMUFile *f)
@@ -1215,7 +1213,12 @@ static int virtio_pci_set_guest_notifier(DeviceState *d, int n, bool assign,
static bool virtio_pci_query_guest_notifiers(DeviceState *d)
{
VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d);
- return msix_enabled(&proxy->pci_dev);
+
+ if (msix_enabled(&proxy->pci_dev)) {
+ return true;
+ } else {
+ return pci_irq_disabled(&proxy->pci_dev);
+ }
}
static int virtio_pci_set_guest_notifiers(DeviceState *d, int nvqs, bool assign)
@@ -1962,6 +1965,7 @@ static void virtio_pci_device_plugged(DeviceState *d, Error **errp)
uint8_t *config;
uint32_t size;
VirtIODevice *vdev = virtio_bus_get_device(bus);
+ int16_t res;
/*
* Virtio capabilities present without
@@ -2109,6 +2113,18 @@ static void virtio_pci_device_plugged(DeviceState *d, Error **errp)
pci_register_bar(&proxy->pci_dev, proxy->legacy_io_bar_idx,
PCI_BASE_ADDRESS_SPACE_IO, &proxy->bar);
}
+
+ if (pci_is_vf(&proxy->pci_dev)) {
+ pcie_ari_init(&proxy->pci_dev, proxy->last_pcie_cap_offset);
+ proxy->last_pcie_cap_offset += PCI_ARI_SIZEOF;
+ } else {
+ res = pcie_sriov_pf_init_from_user_created_vfs(
+ &proxy->pci_dev, proxy->last_pcie_cap_offset, errp);
+ if (res > 0) {
+ proxy->last_pcie_cap_offset += res;
+ virtio_add_feature(&vdev->host_features, VIRTIO_F_SR_IOV);
+ }
+ }
}
static void virtio_pci_device_unplugged(DeviceState *d)
@@ -2199,7 +2215,7 @@ static void virtio_pci_realize(PCIDevice *pci_dev, Error **errp)
if (pcie_port && pci_is_express(pci_dev)) {
int pos;
- uint16_t last_pcie_cap_offset = PCI_CONFIG_SPACE_SIZE;
+ proxy->last_pcie_cap_offset = PCI_CONFIG_SPACE_SIZE;
pos = pcie_endpoint_cap_init(pci_dev, 0);
assert(pos > 0);
@@ -2216,9 +2232,9 @@ static void virtio_pci_realize(PCIDevice *pci_dev, Error **errp)
pci_set_word(pci_dev->config + pos + PCI_PM_PMC, 0x3);
if (proxy->flags & VIRTIO_PCI_FLAG_AER) {
- pcie_aer_init(pci_dev, PCI_ERR_VER, last_pcie_cap_offset,
+ pcie_aer_init(pci_dev, PCI_ERR_VER, proxy->last_pcie_cap_offset,
PCI_ERR_SIZEOF, NULL);
- last_pcie_cap_offset += PCI_ERR_SIZEOF;
+ proxy->last_pcie_cap_offset += PCI_ERR_SIZEOF;
}
if (proxy->flags & VIRTIO_PCI_FLAG_INIT_DEVERR) {
@@ -2243,9 +2259,9 @@ static void virtio_pci_realize(PCIDevice *pci_dev, Error **errp)
}
if (proxy->flags & VIRTIO_PCI_FLAG_ATS) {
- pcie_ats_init(pci_dev, last_pcie_cap_offset,
+ pcie_ats_init(pci_dev, proxy->last_pcie_cap_offset,
proxy->flags & VIRTIO_PCI_FLAG_ATS_PAGE_ALIGNED);
- last_pcie_cap_offset += PCI_EXT_CAP_ATS_SIZEOF;
+ proxy->last_pcie_cap_offset += PCI_EXT_CAP_ATS_SIZEOF;
}
if (proxy->flags & VIRTIO_PCI_FLAG_INIT_FLR) {
@@ -2273,6 +2289,7 @@ static void virtio_pci_exit(PCIDevice *pci_dev)
!pci_bus_is_root(pci_get_bus(pci_dev));
bool modern_pio = proxy->flags & VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY;
+ pcie_sriov_pf_exit(&proxy->pci_dev);
msix_uninit_exclusive_bar(pci_dev);
if (proxy->flags & VIRTIO_PCI_FLAG_AER && pcie_port &&
pci_is_express(pci_dev)) {
@@ -2349,12 +2366,8 @@ static void virtio_pci_bus_reset_hold(Object *obj, ResetType type)
static const Property virtio_pci_properties[] = {
DEFINE_PROP_BIT("virtio-pci-bus-master-bug-migration", VirtIOPCIProxy, flags,
VIRTIO_PCI_FLAG_BUS_MASTER_BUG_MIGRATION_BIT, false),
- DEFINE_PROP_BIT("migrate-extra", VirtIOPCIProxy, flags,
- VIRTIO_PCI_FLAG_MIGRATE_EXTRA_BIT, true),
DEFINE_PROP_BIT("modern-pio-notify", VirtIOPCIProxy, flags,
VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY_BIT, false),
- DEFINE_PROP_BIT("x-disable-pcie", VirtIOPCIProxy, flags,
- VIRTIO_PCI_FLAG_DISABLE_PCIE_BIT, false),
DEFINE_PROP_BIT("page-per-vq", VirtIOPCIProxy, flags,
VIRTIO_PCI_FLAG_PAGE_PER_VQ_BIT, false),
DEFINE_PROP_BOOL("x-ignore-backend-features", VirtIOPCIProxy,
@@ -2383,8 +2396,7 @@ static void virtio_pci_dc_realize(DeviceState *qdev, Error **errp)
VirtIOPCIProxy *proxy = VIRTIO_PCI(qdev);
PCIDevice *pci_dev = &proxy->pci_dev;
- if (!(proxy->flags & VIRTIO_PCI_FLAG_DISABLE_PCIE) &&
- virtio_pci_modern(proxy)) {
+ if (virtio_pci_modern(proxy)) {
pci_dev->cap_present |= QEMU_PCI_CAP_EXPRESS;
}
diff --git a/hw/virtio/virtio-rng.c b/hw/virtio/virtio-rng.c
index dcb3c71..3df5d25 100644
--- a/hw/virtio/virtio-rng.c
+++ b/hw/virtio/virtio-rng.c
@@ -159,17 +159,18 @@ static void check_rate_limit(void *opaque)
vrng->activate_timer = true;
}
-static void virtio_rng_set_status(VirtIODevice *vdev, uint8_t status)
+static int virtio_rng_set_status(VirtIODevice *vdev, uint8_t status)
{
VirtIORNG *vrng = VIRTIO_RNG(vdev);
if (!vdev->vm_running) {
- return;
+ return 0;
}
vdev->status = status;
/* Something changed, try to process buffers */
virtio_rng_process(vrng);
+ return 0;
}
static void virtio_rng_device_realize(DeviceState *dev, Error **errp)
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index 480c2e5..82a285a 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -205,6 +205,15 @@ static const char *virtio_id_to_name(uint16_t device_id)
return name;
}
+static void virtio_check_indirect_feature(VirtIODevice *vdev)
+{
+ if (!virtio_vdev_has_feature(vdev, VIRTIO_RING_F_INDIRECT_DESC)) {
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "Device %s: indirect_desc was not negotiated!\n",
+ vdev->name);
+ }
+}
+
/* Called within call_rcu(). */
static void virtio_free_region_cache(VRingMemoryRegionCaches *caches)
{
@@ -1680,8 +1689,8 @@ static void *virtqueue_split_pop(VirtQueue *vq, size_t sz)
VirtIODevice *vdev = vq->vdev;
VirtQueueElement *elem = NULL;
unsigned out_num, in_num, elem_entries;
- hwaddr addr[VIRTQUEUE_MAX_SIZE];
- struct iovec iov[VIRTQUEUE_MAX_SIZE];
+ hwaddr QEMU_UNINITIALIZED addr[VIRTQUEUE_MAX_SIZE];
+ struct iovec QEMU_UNINITIALIZED iov[VIRTQUEUE_MAX_SIZE];
VRingDesc desc;
int rc;
@@ -1733,6 +1742,7 @@ static void *virtqueue_split_pop(VirtQueue *vq, size_t sz)
virtio_error(vdev, "Invalid size for indirect buffer table");
goto done;
}
+ virtio_check_indirect_feature(vdev);
/* loop over the indirect descriptor table */
len = address_space_cache_init(&indirect_desc_cache, vdev->dma_as,
@@ -1826,8 +1836,8 @@ static void *virtqueue_packed_pop(VirtQueue *vq, size_t sz)
VirtIODevice *vdev = vq->vdev;
VirtQueueElement *elem = NULL;
unsigned out_num, in_num, elem_entries;
- hwaddr addr[VIRTQUEUE_MAX_SIZE];
- struct iovec iov[VIRTQUEUE_MAX_SIZE];
+ hwaddr QEMU_UNINITIALIZED addr[VIRTQUEUE_MAX_SIZE];
+ struct iovec QEMU_UNINITIALIZED iov[VIRTQUEUE_MAX_SIZE];
VRingPackedDesc desc;
uint16_t id;
int rc;
@@ -1870,6 +1880,7 @@ static void *virtqueue_packed_pop(VirtQueue *vq, size_t sz)
virtio_error(vdev, "Invalid size for indirect buffer table");
goto done;
}
+ virtio_check_indirect_feature(vdev);
/* loop over the indirect descriptor table */
len = address_space_cache_init(&indirect_desc_cache, vdev->dma_as,
@@ -2221,12 +2232,12 @@ int virtio_set_status(VirtIODevice *vdev, uint8_t val)
{
VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
trace_virtio_set_status(vdev, val);
+ int ret = 0;
if (virtio_vdev_has_feature(vdev, VIRTIO_F_VERSION_1)) {
if (!(vdev->status & VIRTIO_CONFIG_S_FEATURES_OK) &&
val & VIRTIO_CONFIG_S_FEATURES_OK) {
- int ret = virtio_validate_features(vdev);
-
+ ret = virtio_validate_features(vdev);
if (ret) {
return ret;
}
@@ -2239,11 +2250,15 @@ int virtio_set_status(VirtIODevice *vdev, uint8_t val)
}
if (k->set_status) {
- k->set_status(vdev, val);
+ ret = k->set_status(vdev, val);
+ if (ret) {
+ qemu_log("set %s status to %d failed, old status: %d\n",
+ vdev->name, val, vdev->status);
+ }
}
vdev->status = val;
- return 0;
+ return ret;
}
static enum virtio_device_endian virtio_default_endian(void)
@@ -2316,49 +2331,6 @@ void virtio_queue_enable(VirtIODevice *vdev, uint32_t queue_index)
}
}
-void virtio_reset(void *opaque)
-{
- VirtIODevice *vdev = opaque;
- VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
- int i;
-
- virtio_set_status(vdev, 0);
- if (current_cpu) {
- /* Guest initiated reset */
- vdev->device_endian = virtio_current_cpu_endian();
- } else {
- /* System reset */
- vdev->device_endian = virtio_default_endian();
- }
-
- if (k->get_vhost) {
- struct vhost_dev *hdev = k->get_vhost(vdev);
- /* Only reset when vhost back-end is connected */
- if (hdev && hdev->vhost_ops) {
- vhost_reset_device(hdev);
- }
- }
-
- if (k->reset) {
- k->reset(vdev);
- }
-
- vdev->start_on_kick = false;
- vdev->started = false;
- vdev->broken = false;
- vdev->guest_features = 0;
- vdev->queue_sel = 0;
- vdev->status = 0;
- vdev->disabled = false;
- qatomic_set(&vdev->isr, 0);
- vdev->config_vector = VIRTIO_NO_VECTOR;
- virtio_notify_vector(vdev, vdev->config_vector);
-
- for(i = 0; i < VIRTIO_QUEUE_MAX; i++) {
- __virtio_queue_reset(vdev, i);
- }
-}
-
void virtio_queue_set_addr(VirtIODevice *vdev, int n, hwaddr addr)
{
if (!vdev->vq[n].vring.num) {
@@ -3169,6 +3141,49 @@ int virtio_set_features(VirtIODevice *vdev, uint64_t val)
return ret;
}
+void virtio_reset(void *opaque)
+{
+ VirtIODevice *vdev = opaque;
+ VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
+ int i;
+
+ virtio_set_status(vdev, 0);
+ if (current_cpu) {
+ /* Guest initiated reset */
+ vdev->device_endian = virtio_current_cpu_endian();
+ } else {
+ /* System reset */
+ vdev->device_endian = virtio_default_endian();
+ }
+
+ if (k->get_vhost) {
+ struct vhost_dev *hdev = k->get_vhost(vdev);
+ /* Only reset when vhost back-end is connected */
+ if (hdev && hdev->vhost_ops) {
+ vhost_reset_device(hdev);
+ }
+ }
+
+ if (k->reset) {
+ k->reset(vdev);
+ }
+
+ vdev->start_on_kick = false;
+ vdev->started = false;
+ vdev->broken = false;
+ virtio_set_features_nocheck(vdev, 0);
+ vdev->queue_sel = 0;
+ vdev->status = 0;
+ vdev->disabled = false;
+ qatomic_set(&vdev->isr, 0);
+ vdev->config_vector = VIRTIO_NO_VECTOR;
+ virtio_notify_vector(vdev, vdev->config_vector);
+
+ for (i = 0; i < VIRTIO_QUEUE_MAX; i++) {
+ __virtio_queue_reset(vdev, i);
+ }
+}
+
static void virtio_device_check_notification_compatibility(VirtIODevice *vdev,
Error **errp)
{
@@ -3419,7 +3434,7 @@ void virtio_cleanup(VirtIODevice *vdev)
qemu_del_vm_change_state_handler(vdev->vmstate);
}
-static void virtio_vmstate_change(void *opaque, bool running, RunState state)
+static int virtio_vmstate_change(void *opaque, bool running, RunState state)
{
VirtIODevice *vdev = opaque;
BusState *qbus = qdev_get_parent_bus(DEVICE(vdev));
@@ -3436,8 +3451,12 @@ static void virtio_vmstate_change(void *opaque, bool running, RunState state)
}
if (!backend_run) {
- virtio_set_status(vdev, vdev->status);
+ int ret = virtio_set_status(vdev, vdev->status);
+ if (ret) {
+ return ret;
+ }
}
+ return 0;
}
void virtio_instance_init_common(Object *proxy_obj, void *data,
@@ -3489,7 +3508,7 @@ void virtio_init(VirtIODevice *vdev, uint16_t device_id, size_t config_size)
vdev->config = NULL;
}
vdev->vmstate = qdev_add_vm_change_state_handler(DEVICE(vdev),
- virtio_vmstate_change, vdev);
+ NULL, virtio_vmstate_change, vdev);
vdev->device_endian = virtio_default_endian();
vdev->use_guest_notifier_mask = true;
}
generated by cgit v1.1 at 2025-07-02 23:38:37 +0000