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| author | Jason Wang <jasowang@redhat.com> | 2016-12-30 18:09:15 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2017-01-10 05:56:59 +0200 |
| commit | 615c4ed20598ab3eda5e071ba7ba2a5bf70be59f (patch) | |
| tree | 28db0d008fd713671715aba171b882c41fd1f60d /hw/virtio/virtio-pci.h | |
| parent | 554f5e16046236b264c66436870be1b4ef25c1dc (diff) | |
| download | qemu-615c4ed20598ab3eda5e071ba7ba2a5bf70be59f.zip qemu-615c4ed20598ab3eda5e071ba7ba2a5bf70be59f.tar.gz qemu-615c4ed20598ab3eda5e071ba7ba2a5bf70be59f.tar.bz2 | |
virtio-pci: address space translation service (ATS) support
This patches enable the Address Translation Service support for virtio
pci devices. This is needed for a guest visible Device IOTLB
implementation and will be required by vhost device IOTLB API
implementation for intel IOMMU.
Cc: Michael S. Tsirkin <mst@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>
Diffstat (limited to 'hw/virtio/virtio-pci.h')
| -rw-r--r-- | hw/virtio/virtio-pci.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/hw/virtio/virtio-pci.h b/hw/virtio/virtio-pci.h index 5e07886..d00064c 100644 --- a/hw/virtio/virtio-pci.h +++ b/hw/virtio/virtio-pci.h @@ -72,6 +72,7 @@ enum { VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY_BIT, VIRTIO_PCI_FLAG_DISABLE_PCIE_BIT, VIRTIO_PCI_FLAG_PAGE_PER_VQ_BIT, + VIRTIO_PCI_FLAG_ATS_BIT, }; /* Need to activate work-arounds for buggy guests at vmstate load. */ @@ -96,6 +97,9 @@ enum { #define VIRTIO_PCI_FLAG_PAGE_PER_VQ \ (1 << VIRTIO_PCI_FLAG_PAGE_PER_VQ_BIT) +/* address space translation service */ +#define VIRTIO_PCI_FLAG_ATS (1 << VIRTIO_PCI_FLAG_ATS_BIT) + typedef struct { MSIMessage msg; int virq; |