1 files changed, 171 insertions, 0 deletions
diff --git a/roms/edk2/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDevice.h b/roms/edk2/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDevice.h
new file mode 100644
index 000000000..785876c75
--- /dev/null
+++ b/roms/edk2/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDevice.h
@@ -0,0 +1,171 @@
+/** @file
+
+  Internal definitions for the VirtIo MMIO Device driver
+
+  Copyright (C) 2013, ARM Ltd
+  Copyright (C) 2017, AMD Inc. All rights reserved.<BR>
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef _VIRTIO_MMIO_DEVICE_INTERNAL_H_
+#define _VIRTIO_MMIO_DEVICE_INTERNAL_H_
+
+#include <Protocol/VirtioDevice.h>
+
+#include <IndustryStandard/Virtio.h>
+
+#include <Library/DebugLib.h>
+#include <Library/IoLib.h>
+#include <Library/UefiLib.h>
+#include <Library/VirtioMmioDeviceLib.h>
+#include <Library/MemoryAllocationLib.h>
+
+#define VIRTIO_MMIO_DEVICE_SIGNATURE  SIGNATURE_32 ('V', 'M', 'I', 'O')
+
+typedef struct {
+  UINT32                 Signature;
+  VIRTIO_DEVICE_PROTOCOL VirtioDevice;
+  PHYSICAL_ADDRESS       BaseAddress;
+} VIRTIO_MMIO_DEVICE;
+
+#define VIRTIO_MMIO_DEVICE_FROM_VIRTIO_DEVICE(Device) \
+    CR (Device, VIRTIO_MMIO_DEVICE, VirtioDevice, VIRTIO_MMIO_DEVICE_SIGNATURE)
+
+#define VIRTIO_CFG_WRITE(Device, Offset, Val) \
+    (MmioWrite32 (Device->BaseAddress + (Offset), Val))
+#define VIRTIO_CFG_READ(Device, Offset)       \
+    (MmioRead32  (Device->BaseAddress + (Offset)))
+
+EFI_STATUS
+EFIAPI
+VirtioMmioDeviceRead (
+  IN  VIRTIO_DEVICE_PROTOCOL    *This,
+  IN  UINTN                     FieldOFfset,
+  IN  UINTN                     FieldSize,
+  IN  UINTN                     BufferSize,
+  OUT VOID*                     Buffer
+  );
+
+EFI_STATUS
+EFIAPI
+VirtioMmioDeviceWrite (
+  IN  VIRTIO_DEVICE_PROTOCOL    *This,
+  IN  UINTN                     FieldOffset,
+  IN  UINTN                     FieldSize,
+  IN  UINT64                    Value
+  );
+
+EFI_STATUS
+EFIAPI
+VirtioMmioGetDeviceFeatures (
+  IN VIRTIO_DEVICE_PROTOCOL *This,
+  OUT UINT64                *DeviceFeatures
+  );
+
+EFI_STATUS
+EFIAPI
+VirtioMmioGetQueueSize (
+  IN  VIRTIO_DEVICE_PROTOCOL  *This,
+  OUT UINT16                  *QueueNumMax
+  );
+
+EFI_STATUS
+EFIAPI
+VirtioMmioGetDeviceStatus (
+  IN  VIRTIO_DEVICE_PROTOCOL  *This,
+  OUT UINT8                   *DeviceStatus
+  );
+
+EFI_STATUS
+EFIAPI
+VirtioMmioSetQueueSize (
+  IN VIRTIO_DEVICE_PROTOCOL *This,
+  IN UINT16                  QueueSize
+  );
+
+EFI_STATUS
+EFIAPI
+VirtioMmioSetDeviceStatus (
+  IN VIRTIO_DEVICE_PROTOCOL *This,
+  IN UINT8                   DeviceStatus
+  );
+
+EFI_STATUS
+EFIAPI
+VirtioMmioSetQueueNotify (
+  IN VIRTIO_DEVICE_PROTOCOL *This,
+  IN UINT16                  QueueNotify
+  );
+
+EFI_STATUS
+EFIAPI
+VirtioMmioSetQueueSel (
+  IN VIRTIO_DEVICE_PROTOCOL *This,
+  IN UINT16                  Sel
+  );
+
+EFI_STATUS
+VirtioMmioSetQueueAddress (
+  IN VIRTIO_DEVICE_PROTOCOL  *This,
+  IN VRING                   *Ring,
+  IN UINT64                  RingBaseShift
+  );
+
+EFI_STATUS
+EFIAPI
+VirtioMmioSetQueueAlignment (
+  IN VIRTIO_DEVICE_PROTOCOL *This,
+  IN UINT32                  Alignment
+  );
+
+EFI_STATUS
+EFIAPI
+VirtioMmioSetPageSize (
+  IN VIRTIO_DEVICE_PROTOCOL *This,
+  IN UINT32                  PageSize
+  );
+
+EFI_STATUS
+EFIAPI
+VirtioMmioSetGuestFeatures (
+  IN VIRTIO_DEVICE_PROTOCOL *This,
+  IN UINT64                  Features
+  );
+
+EFI_STATUS
+EFIAPI
+VirtioMmioAllocateSharedPages (
+  IN  VIRTIO_DEVICE_PROTOCOL        *This,
+  IN  UINTN                         NumPages,
+  OUT VOID                          **HostAddress
+  );
+
+VOID
+EFIAPI
+VirtioMmioFreeSharedPages (
+  IN  VIRTIO_DEVICE_PROTOCOL        *This,
+  IN  UINTN                         NumPages,
+  IN  VOID                          *HostAddress
+  );
+
+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
+  );
+
+EFI_STATUS
+EFIAPI
+VirtioMmioUnmapSharedBuffer (
+  IN  VIRTIO_DEVICE_PROTOCOL        *This,
+  IN  VOID                          *Mapping
+  );
+
+#endif // _VIRTIO_MMIO_DEVICE_INTERNAL_H_