X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=OvmfPkg%2FVirtioPciDeviceDxe%2FVirtioPciFunctions.c;h=b52060d13d97024b4fa4cc19ca0997bb5161fef8;hp=243aa14c24212a6cfa3fd090ab2cdf24ca76af95;hb=53a4c6047f3ce2ece7bb8db5b9815a1c9227dddb;hpb=07af4eee931210bad04b98d37a35bd0f61ba6bd3

diff --git a/OvmfPkg/VirtioPciDeviceDxe/VirtioPciFunctions.c b/OvmfPkg/VirtioPciDeviceDxe/VirtioPciFunctions.c
index 243aa14c24..b52060d13d 100644
--- a/OvmfPkg/VirtioPciDeviceDxe/VirtioPciFunctions.c
+++ b/OvmfPkg/VirtioPciDeviceDxe/VirtioPciFunctions.c
@@ -5,6 +5,7 @@
   Copyright (C) 2012, Red Hat, Inc.
   Copyright (c) 2012, 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
@@ -182,11 +183,14 @@ EFI_STATUS
 EFIAPI
 VirtioPciSetQueueAddress (
   IN VIRTIO_DEVICE_PROTOCOL  *This,
-  IN VRING                   *Ring
+  IN VRING                   *Ring,
+  IN UINT64                  RingBaseShift
   )
 {
   VIRTIO_PCI_DEVICE *Dev;
 
+  ASSERT (RingBaseShift == 0);
+
   Dev = VIRTIO_PCI_DEVICE_FROM_VIRTIO_DEVICE (This);
 
   return VirtioPciIoWrite (Dev, VIRTIO_PCI_OFFSET_QUEUE_ADDRESS, sizeof (UINT32),
@@ -196,8 +200,8 @@ VirtioPciSetQueueAddress (
 EFI_STATUS
 EFIAPI
 VirtioPciSetQueueSel (
-  VIRTIO_DEVICE_PROTOCOL    *This,
-  UINT16                    Sel
+  IN  VIRTIO_DEVICE_PROTOCOL    *This,
+  IN  UINT16                    Sel
   )
 {
   VIRTIO_PCI_DEVICE *Dev;
@@ -211,8 +215,8 @@ VirtioPciSetQueueSel (
 EFI_STATUS
 EFIAPI
 VirtioPciSetQueueAlignment (
-  VIRTIO_DEVICE_PROTOCOL *This,
-  UINT32                  Alignment
+  IN  VIRTIO_DEVICE_PROTOCOL *This,
+  IN  UINT32                  Alignment
   )
 {
   return EFI_SUCCESS;
@@ -221,8 +225,8 @@ VirtioPciSetQueueAlignment (
 EFI_STATUS
 EFIAPI
 VirtioPciSetPageSize (
-  VIRTIO_DEVICE_PROTOCOL *This,
-  UINT32                  PageSize
+  IN  VIRTIO_DEVICE_PROTOCOL *This,
+  IN  UINT32                  PageSize
   )
 {
   return (PageSize == EFI_PAGE_SIZE) ? EFI_SUCCESS : EFI_UNSUPPORTED;
@@ -231,8 +235,8 @@ VirtioPciSetPageSize (
 EFI_STATUS
 EFIAPI
 VirtioPciSetQueueNotify (
-  VIRTIO_DEVICE_PROTOCOL *This,
-  UINT16                 Index
+  IN  VIRTIO_DEVICE_PROTOCOL *This,
+  IN  UINT16                 Index
   )
 {
   VIRTIO_PCI_DEVICE *Dev;
@@ -246,8 +250,8 @@ VirtioPciSetQueueNotify (
 EFI_STATUS
 EFIAPI
 VirtioPciSetQueueSize (
-  VIRTIO_DEVICE_PROTOCOL *This,
-  UINT16                 Size
+  IN  VIRTIO_DEVICE_PROTOCOL *This,
+  IN  UINT16                 Size
   )
 {
   //
@@ -260,8 +264,8 @@ VirtioPciSetQueueSize (
 EFI_STATUS
 EFIAPI
 VirtioPciSetDeviceStatus (
-  VIRTIO_DEVICE_PROTOCOL *This,
-  UINT8                  DeviceStatus
+  IN  VIRTIO_DEVICE_PROTOCOL *This,
+  IN  UINT8                  DeviceStatus
   )
 {
   VIRTIO_PCI_DEVICE *Dev;
@@ -271,3 +275,60 @@ VirtioPciSetDeviceStatus (
   return VirtioPciIoWrite (Dev, VIRTIO_PCI_OFFSET_QUEUE_DEVICE_STATUS,
       sizeof (UINT8), DeviceStatus);
 }
+
+EFI_STATUS
+EFIAPI
+VirtioPciAllocateSharedPages (
+  IN  VIRTIO_DEVICE_PROTOCOL  *This,
+  IN  UINTN                   NumPages,
+  OUT VOID                    **HostAddress
+  )
+{
+  VOID        *Buffer;
+
+  Buffer = AllocatePages (NumPages);
+  if (Buffer == NULL) {
+    return EFI_OUT_OF_RESOURCES;
+  }
+
+  *HostAddress = Buffer;
+  return EFI_SUCCESS;
+}
+
+VOID
+EFIAPI
+VirtioPciFreeSharedPages (
+  IN  VIRTIO_DEVICE_PROTOCOL  *This,
+  IN  UINTN                   NumPages,
+  IN  VOID                    *HostAddress
+  )
+{
+  FreePages (HostAddress, NumPages);
+}
+
+EFI_STATUS
+EFIAPI
+VirtioPciMapSharedBuffer (
+  IN      VIRTIO_DEVICE_PROTOCOL  *This,
+  IN      VIRTIO_MAP_OPERATION    Operation,
+  IN      VOID                    *HostAddress,
+  IN OUT  UINTN                   *NumberOfBytes,
+  OUT     EFI_PHYSICAL_ADDRESS    *DeviceAddress,
+  OUT     VOID                    **Mapping
+  )
+{
+  *DeviceAddress = (EFI_PHYSICAL_ADDRESS) (UINTN) HostAddress;
+  *Mapping = NULL;
+
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
+VirtioPciUnmapSharedBuffer (
+  IN VIRTIO_DEVICE_PROTOCOL    *This,
+  IN VOID                      *Mapping
+  )
+{
+  return EFI_SUCCESS;
+}