ShuriZma
/
xemu
mirror of https://github.com/xemu-project/xemu.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

virtio: do not reset msix state on soft reset 

msix state is managed by OS, not the
driver, so it's wrong to touch it
on io from driver.
Mark all vectors unused instead.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Michael S. Tsirkin 2009-11-24 16:45:35 +02:00
parent b5f28bcaee
commit 1b8e9b2742
1 changed files with 8 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
hw/virtio-pci.c
View File

@ -185,8 +185,10 @@ static void virtio_ioport_write(void *opaque, uint32_t addr, uint32_t val)
break;
case VIRTIO_PCI_QUEUE_PFN:
pa = (target_phys_addr_t)val << VIRTIO_PCI_QUEUE_ADDR_SHIFT;
if (pa == 0)
virtio_pci_reset(&proxy->pci_dev.qdev);
if (pa == 0) {
virtio_reset(proxy->vdev);
msix_unuse_all_vectors(&proxy->pci_dev);
}
else
virtio_queue_set_addr(vdev, vdev->queue_sel, pa);
break;
@ -199,8 +201,10 @@ static void virtio_ioport_write(void *opaque, uint32_t addr, uint32_t val)
break;
case VIRTIO_PCI_STATUS:
vdev->status = val & 0xFF;
if (vdev->status == 0)
virtio_pci_reset(&proxy->pci_dev.qdev);
if (vdev->status == 0) {
virtio_reset(proxy->vdev);
msix_unuse_all_vectors(&proxy->pci_dev);
}
break;
case VIRTIO_MSI_CONFIG_VECTOR:
msix_vector_unuse(&proxy->pci_dev, vdev->config_vector);