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virtio-mmio: cleanup reset 

Make virtio_mmio_soft_reset reset the virtio device, which is performed by
both the "soft" and the "hard" reset; and then call virtio_mmio_soft_reset
from virtio_mmio_reset to emphasize that the latter is a superset of the
former.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2022-06-09 08:54:54 +02:00
parent 9e43a83041
commit 26cfd67981
1 changed files with 8 additions and 9 deletions
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17
hw/virtio/virtio-mmio.c
View File

@ -72,12 +72,12 @@ static void virtio_mmio_soft_reset(VirtIOMMIOProxy *proxy)
{
int i;
if (proxy->legacy) {
return;
}
virtio_bus_reset(&proxy->bus);
for (i = 0; i < VIRTIO_QUEUE_MAX; i++) {
proxy->vqs[i].enabled = 0;
if (!proxy->legacy) {
for (i = 0; i < VIRTIO_QUEUE_MAX; i++) {
proxy->vqs[i].enabled = 0;
}
}
}
@ -376,7 +376,7 @@ static void virtio_mmio_write(void *opaque, hwaddr offset, uint64_t value,
return;
}
if (value == 0) {
virtio_bus_reset(&vdev->bus);
virtio_mmio_soft_reset(proxy);
} else {
virtio_queue_set_addr(vdev, vdev->queue_sel,
value << proxy->guest_page_shift);
@ -432,7 +432,6 @@ static void virtio_mmio_write(void *opaque, hwaddr offset, uint64_t value,
}
if (vdev->status == 0) {
virtio_reset(vdev);
virtio_mmio_soft_reset(proxy);
}
break;
@ -627,7 +626,8 @@ static void virtio_mmio_reset(DeviceState *d)
VirtIOMMIOProxy *proxy = VIRTIO_MMIO(d);
int i;
virtio_bus_reset(&proxy->bus);
virtio_mmio_soft_reset(proxy);
proxy->host_features_sel = 0;
proxy->guest_features_sel = 0;
proxy->guest_page_shift = 0;
@ -636,7 +636,6 @@ static void virtio_mmio_reset(DeviceState *d)
proxy->guest_features[0] = proxy->guest_features[1] = 0;
for (i = 0; i < VIRTIO_QUEUE_MAX; i++) {
proxy->vqs[i].enabled = 0;
proxy->vqs[i].num = 0;
proxy->vqs[i].desc[0] = proxy->vqs[i].desc[1] = 0;
proxy->vqs[i].avail[0] = proxy->vqs[i].avail[1] = 0;