sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

OvmfPkg: VIRTIO_DEVICE_PROTOCOL: pass VRING object to SetQueueAddress()

Browse Source 
In virtio-1.0, it is not enough to pass the base address of the virtio
queue to the hypervisor (as a frame number); instead it will want the
addresses of the descriptor table, the available ring, and the used ring
separately. Pass the VRING object to the SetQueueAddress() member
function; this will enable a virtio-1.0 implementation. Convert the
current producers and consumers to this prototype.

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
This commit is contained in:
Laszlo Ersek
2016-03-12 03:39:00 +01:00
parent 235be6a0f1
commit 07af4eee93
9 changed files with 21 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
OvmfPkg/VirtioPciDeviceDxe/VirtioPciFunctions.c
View File

@@ -181,8 +181,8 @@ VirtioPciSetGuestFeatures (
EFI_STATUS
EFIAPI
VirtioPciSetQueueAddress (
VIRTIO_DEVICE_PROTOCOL *This,
UINT32 Address
IN VIRTIO_DEVICE_PROTOCOL *This,
IN VRING *Ring
)
{
VIRTIO_PCI_DEVICE *Dev;
@@ -190,7 +190,7 @@ VirtioPciSetQueueAddress (
Dev = VIRTIO_PCI_DEVICE_FROM_VIRTIO_DEVICE (This);
return VirtioPciIoWrite (Dev, VIRTIO_PCI_OFFSET_QUEUE_ADDRESS, sizeof (UINT32),
Address);
(UINT32)((UINTN)Ring->Base >> EFI_PAGE_SHIFT));
}
EFI_STATUS