diff options
Diffstat (limited to 'roms/edk2/OvmfPkg/VirtioPciDeviceDxe/VirtioPciDevice.h')
| -rw-r--r-- | roms/edk2/OvmfPkg/VirtioPciDeviceDxe/VirtioPciDevice.h | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/roms/edk2/OvmfPkg/VirtioPciDeviceDxe/VirtioPciDevice.h b/roms/edk2/OvmfPkg/VirtioPciDeviceDxe/VirtioPciDevice.h new file mode 100644 index 000000000..fe8514d42 --- /dev/null +++ b/roms/edk2/OvmfPkg/VirtioPciDeviceDxe/VirtioPciDevice.h @@ -0,0 +1,188 @@ +/** @file
+
+ Internal definitions for the VirtIo PCI 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_PCI_DEVICE_DXE_H_
+#define _VIRTIO_PCI_DEVICE_DXE_H_
+
+#include <Protocol/ComponentName.h>
+#include <Protocol/DriverBinding.h>
+#include <Protocol/PciIo.h>
+#include <Protocol/VirtioDevice.h>
+
+#include <IndustryStandard/Virtio.h>
+
+#define VIRTIO_PCI_DEVICE_SIGNATURE SIGNATURE_32 ('V', 'P', 'C', 'I')
+
+typedef struct {
+ UINT32 Signature;
+ VIRTIO_DEVICE_PROTOCOL VirtioDevice;
+ EFI_PCI_IO_PROTOCOL *PciIo;
+ UINT64 OriginalPciAttributes;
+ UINT32 DeviceSpecificConfigurationOffset;
+} VIRTIO_PCI_DEVICE;
+
+#define VIRTIO_PCI_DEVICE_FROM_VIRTIO_DEVICE(Device) \
+ CR (Device, VIRTIO_PCI_DEVICE, VirtioDevice, VIRTIO_PCI_DEVICE_SIGNATURE)
+
+
+EFI_STATUS
+EFIAPI
+VirtioPciIoRead (
+ IN VIRTIO_PCI_DEVICE *Dev,
+ IN UINTN FieldOffset,
+ IN UINTN FieldSize,
+ IN UINTN BufferSize,
+ OUT VOID *Buffer
+ );
+
+EFI_STATUS
+EFIAPI
+VirtioPciIoWrite (
+ IN VIRTIO_PCI_DEVICE *Dev,
+ IN UINTN FieldOffset,
+ IN UINTN FieldSize,
+ IN UINT64 Value
+ );
+
+/********************************************
+ * PCI Functions for VIRTIO_DEVICE_PROTOCOL
+ *******************************************/
+EFI_STATUS
+EFIAPI
+VirtioPciDeviceRead (
+ IN VIRTIO_DEVICE_PROTOCOL *This,
+ IN UINTN FieldOffset,
+ IN UINTN FieldSize,
+ IN UINTN BufferSize,
+ OUT VOID *Buffer
+ );
+
+EFI_STATUS
+EFIAPI
+VirtioPciDeviceWrite (
+ IN VIRTIO_DEVICE_PROTOCOL *This,
+ IN UINTN FieldOffset,
+ IN UINTN FieldSize,
+ IN UINT64 Value
+ );
+
+EFI_STATUS
+EFIAPI
+VirtioPciGetDeviceFeatures (
+ IN VIRTIO_DEVICE_PROTOCOL *This,
+ OUT UINT64 *DeviceFeatures
+ );
+
+EFI_STATUS
+EFIAPI
+VirtioPciGetQueueSize (
+ IN VIRTIO_DEVICE_PROTOCOL *This,
+ OUT UINT16 *QueueNumMax
+ );
+
+EFI_STATUS
+EFIAPI
+VirtioPciSetQueueAlignment (
+ IN VIRTIO_DEVICE_PROTOCOL *This,
+ IN UINT32 Alignment
+ );
+
+EFI_STATUS
+EFIAPI
+VirtioPciSetPageSize (
+ IN VIRTIO_DEVICE_PROTOCOL *This,
+ IN UINT32 PageSize
+ );
+
+EFI_STATUS
+EFIAPI
+VirtioPciGetDeviceStatus (
+ IN VIRTIO_DEVICE_PROTOCOL *This,
+ OUT UINT8 *DeviceStatus
+ );
+
+EFI_STATUS
+EFIAPI
+VirtioPciSetGuestFeatures (
+ IN VIRTIO_DEVICE_PROTOCOL *This,
+ IN UINT64 Features
+ );
+
+EFI_STATUS
+EFIAPI
+VirtioPciSetQueueAddress (
+ IN VIRTIO_DEVICE_PROTOCOL *This,
+ IN VRING *Ring,
+ IN UINT64 RingBaseShift
+ );
+
+EFI_STATUS
+EFIAPI
+VirtioPciSetQueueSel (
+ IN VIRTIO_DEVICE_PROTOCOL *This,
+ IN UINT16 Sel
+ );
+
+EFI_STATUS
+EFIAPI
+VirtioPciSetQueueNotify (
+ IN VIRTIO_DEVICE_PROTOCOL *This,
+ IN UINT16 Index
+ );
+
+EFI_STATUS
+EFIAPI
+VirtioPciSetQueueSize (
+ IN VIRTIO_DEVICE_PROTOCOL *This,
+ IN UINT16 Size
+ );
+
+EFI_STATUS
+EFIAPI
+VirtioPciSetDeviceStatus (
+ IN VIRTIO_DEVICE_PROTOCOL *This,
+ IN UINT8 DeviceStatus
+ );
+
+EFI_STATUS
+EFIAPI
+VirtioPciAllocateSharedPages (
+ IN VIRTIO_DEVICE_PROTOCOL *This,
+ IN UINTN NumPages,
+ OUT VOID **HostAddress
+ );
+
+VOID
+EFIAPI
+VirtioPciFreeSharedPages (
+ IN VIRTIO_DEVICE_PROTOCOL *This,
+ IN UINTN NumPages,
+ IN VOID *HostAddress
+ );
+
+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
+ );
+
+EFI_STATUS
+EFIAPI
+VirtioPciUnmapSharedBuffer (
+ IN VIRTIO_DEVICE_PROTOCOL *This,
+ IN VOID *Mapping
+ );
+#endif // _VIRTIO_PCI_DEVICE_DXE_H_
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