X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=OvmfPkg%2FLibrary%2FVirtioMmioDeviceLib%2FVirtioMmioDeviceFunctions.c;h=67458e56231bcdbe1c1bc62cca717b4384a9df5e;hp=9142d4a162c06f43659aa57b649afe7e0226ed84;hb=a3d7ae2ed87ee8cb7d6c516520556ceb634dfba9;hpb=22701a3d4dd1fd3eed385215d6e2dad0ad069b7f

diff --git a/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c b/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c
index 9142d4a162..67458e5623 100644
--- a/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c
+++ b/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c
@@ -181,11 +181,14 @@ VirtioMmioSetQueueSel (
 EFI_STATUS
 VirtioMmioSetQueueAddress (
   IN VIRTIO_DEVICE_PROTOCOL  *This,
-  IN VRING                   *Ring
+  IN VRING                   *Ring,
+  IN UINT64                  RingBaseShift
   )
 {
   VIRTIO_MMIO_DEVICE *Device;
 
+  ASSERT (RingBaseShift == 0);
+
   Device = VIRTIO_MMIO_DEVICE_FROM_VIRTIO_DEVICE (This);
 
   VIRTIO_CFG_WRITE (Device, VIRTIO_MMIO_OFFSET_QUEUE_PFN,
@@ -293,3 +296,60 @@ VirtioMmioDeviceRead (
 
   return EFI_SUCCESS;
 }
+
+EFI_STATUS
+EFIAPI
+VirtioMmioAllocateSharedPages (
+  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
+VirtioMmioFreeSharedPages (
+  IN  VIRTIO_DEVICE_PROTOCOL  *This,
+  IN  UINTN                   NumPages,
+  IN  VOID                    *HostAddress
+  )
+{
+  FreePages (HostAddress, NumPages);
+}
+
+EFI_STATUS
+EFIAPI
+VirtioMmioMapSharedBuffer (
+  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
+VirtioMmioUnmapSharedBuffer (
+  IN VIRTIO_DEVICE_PROTOCOL    *This,
+  IN VOID                      *Mapping
+  )
+{
+  return EFI_SUCCESS;
+}