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| author | Jason Wang <jasowang@redhat.com> | 2017-03-01 12:10:40 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2017-03-02 07:14:28 +0200 |
| commit | 96a8821d21411f10d77ea994af369c6e5c35a2cc (patch) | |
| tree | 1f716639ec1ae1cc8d427af835f74c4136239b0c | |
| parent | 874adf45dbfbae2810423527d777ba37bc5ca974 (diff) | |
| download | focaccia-qemu-96a8821d21411f10d77ea994af369c6e5c35a2cc.tar.gz focaccia-qemu-96a8821d21411f10d77ea994af369c6e5c35a2cc.zip | |
virtio: unbreak virtio-pci with IOMMU after caching ring translations
Commit c611c76417f5 ("virtio: add MemoryListener to cache ring
translations") registers a memory listener to dma_as. This may not
work when IOMMU is enabled: dma_as(bus_master_as) were initialized in
pcibus_machine_done() after virtio_realize(). This will cause a
segfault. Fixing this by using pci_device_iommu_address_space()
instead to make sure address space were initialized at this time.
With this fix, IOMMU device were required to be initialized before any
virtio-pci devices.
Fixes: c611c76417f5 ("virtio: add MemoryListener to cache ring translations")
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| -rw-r--r-- | hw/virtio/virtio-pci.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c index 5ce42af9d4..b76f3f62a0 100644 --- a/hw/virtio/virtio-pci.c +++ b/hw/virtio/virtio-pci.c @@ -1153,7 +1153,7 @@ static AddressSpace *virtio_pci_get_dma_as(DeviceState *d) VirtIOPCIProxy *proxy = VIRTIO_PCI(d); PCIDevice *dev = &proxy->pci_dev; - return pci_get_address_space(dev); + return pci_device_iommu_address_space(dev); } static int virtio_pci_add_mem_cap(VirtIOPCIProxy *proxy, |