OvmfPkg/VirtioPciDeviceDxe: implement IOMMU-like member functions

The patch implements the newly added IOMMU-like member functions by
respectively delegating the job to:

- VIRTIO_DEVICE_PROTOCOL.AllocateSharedPages () ->
    MemoryAllocationLib.AllocatePages()

- VIRTIO_DEVICE_PROTOCOL.FreeSharedPages () ->
    MemoryAllocationLib.FreePages ()

- VIRTIO_DEVICE_PROTOCOL.MapSharedBuffer () -> no-op

- VIRTIO_DEVICE_PROTOCOL.UnmapSharedBuffer () -> no-op

Suggested-by: Laszlo Ersek <lersek@redhat.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Regression-tested-by: Laszlo Ersek <lersek@redhat.com>
This commit is contained in:
Brijesh Singh
2017-08-23 06:57:15 -04:00
committed by Laszlo Ersek
parent de1c57c5f5
commit 4157b8416a
3 changed files with 98 additions and 1 deletions

View File

@@ -5,6 +5,7 @@
Copyright (C) 2012, Red Hat, Inc.
Copyright (c) 2012 - 2016, Intel Corporation. All rights reserved.<BR>
Copyright (C) 2013, ARM Ltd.
Copyright (C) 2017, AMD Inc, All rights reserved.<BR>
This program and the accompanying materials are licensed and made available
under the terms and conditions of the BSD License which accompanies this
@@ -40,7 +41,11 @@ STATIC VIRTIO_DEVICE_PROTOCOL mDeviceProtocolTemplate = {
VirtioPciGetDeviceStatus, // GetDeviceStatus
VirtioPciSetDeviceStatus, // SetDeviceStatus
VirtioPciDeviceWrite, // WriteDevice
VirtioPciDeviceRead // ReadDevice
VirtioPciDeviceRead, // ReadDevice
VirtioPciAllocateSharedPages, // AllocateSharedPages
VirtioPciFreeSharedPages, // FreeSharedPages
VirtioPciMapSharedBuffer, // MapSharedBuffer
VirtioPciUnmapSharedBuffer, // UnmapSharedBuffer
};
/**