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Diffstat (limited to 'OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c')
-rw-r--r--OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c310
1 files changed, 0 insertions, 310 deletions
diff --git a/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c b/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c
deleted file mode 100644
index 3950c07f7f..0000000000
--- a/OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceFunctions.c
+++ /dev/null
@@ -1,310 +0,0 @@
-/** @file
-
- This driver produces Virtio Device Protocol instances for Virtio MMIO devices.
-
- Copyright (C) 2012, Red Hat, Inc.
- Copyright (c) 2012, Intel Corporation. All rights reserved.<BR>
- Copyright (C) 2013, ARM Ltd.
-
- This program and the accompanying materials are licensed and made available
- under the terms and conditions of the BSD License which accompanies this
- distribution. The full text of the license may be found at
- http://opensource.org/licenses/bsd-license.php
-
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT
- WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-**/
-
-#include "VirtioMmioDevice.h"
-
-EFI_STATUS
-EFIAPI
-VirtioMmioGetDeviceFeatures (
- IN VIRTIO_DEVICE_PROTOCOL *This,
- OUT UINT32 *DeviceFeatures
- )
-{
- VIRTIO_MMIO_DEVICE *Device;
-
- if (DeviceFeatures == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- Device = VIRTIO_MMIO_DEVICE_FROM_VIRTIO_DEVICE (This);
-
- *DeviceFeatures = VIRTIO_CFG_READ (Device, VIRTIO_MMIO_OFFSET_HOST_FEATURES);
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-EFIAPI
-VirtioMmioGetQueueAddress (
- IN VIRTIO_DEVICE_PROTOCOL *This,
- OUT UINT32 *QueueAddress
- )
-{
- VIRTIO_MMIO_DEVICE *Device;
-
- if (QueueAddress == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- Device = VIRTIO_MMIO_DEVICE_FROM_VIRTIO_DEVICE (This);
-
- *QueueAddress = VIRTIO_CFG_READ (Device, VIRTIO_MMIO_OFFSET_QUEUE_PFN);
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-EFIAPI
-VirtioMmioGetQueueSize (
- IN VIRTIO_DEVICE_PROTOCOL *This,
- OUT UINT16 *QueueNumMax
- )
-{
- VIRTIO_MMIO_DEVICE *Device;
-
- if (QueueNumMax == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- Device = VIRTIO_MMIO_DEVICE_FROM_VIRTIO_DEVICE (This);
-
- *QueueNumMax = VIRTIO_CFG_READ (Device, VIRTIO_MMIO_OFFSET_QUEUE_NUM_MAX) & 0xFFFF;
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-EFIAPI
-VirtioMmioGetDeviceStatus (
- IN VIRTIO_DEVICE_PROTOCOL *This,
- OUT UINT8 *DeviceStatus
- )
-{
- VIRTIO_MMIO_DEVICE *Device;
-
- if (DeviceStatus == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- Device = VIRTIO_MMIO_DEVICE_FROM_VIRTIO_DEVICE (This);
-
- *DeviceStatus = VIRTIO_CFG_READ (Device, VIRTIO_MMIO_OFFSET_STATUS) & 0xFF;
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-EFIAPI
-VirtioMmioSetQueueSize (
- VIRTIO_DEVICE_PROTOCOL *This,
- UINT16 QueueSize
- )
-{
- VIRTIO_MMIO_DEVICE *Device;
-
- Device = VIRTIO_MMIO_DEVICE_FROM_VIRTIO_DEVICE (This);
-
- VIRTIO_CFG_WRITE (Device, VIRTIO_MMIO_OFFSET_QUEUE_NUM, QueueSize);
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-EFIAPI
-VirtioMmioSetDeviceStatus (
- VIRTIO_DEVICE_PROTOCOL *This,
- UINT8 DeviceStatus
- )
-{
- VIRTIO_MMIO_DEVICE *Device;
-
- Device = VIRTIO_MMIO_DEVICE_FROM_VIRTIO_DEVICE (This);
-
- VIRTIO_CFG_WRITE (Device, VIRTIO_MMIO_OFFSET_STATUS, DeviceStatus);
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-EFIAPI
-VirtioMmioSetQueueNotify (
- VIRTIO_DEVICE_PROTOCOL *This,
- UINT16 QueueNotify
- )
-{
- VIRTIO_MMIO_DEVICE *Device;
-
- Device = VIRTIO_MMIO_DEVICE_FROM_VIRTIO_DEVICE (This);
-
- VIRTIO_CFG_WRITE (Device, VIRTIO_MMIO_OFFSET_QUEUE_NOTIFY, QueueNotify);
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-EFIAPI
-VirtioMmioSetQueueAlignment (
- VIRTIO_DEVICE_PROTOCOL *This,
- UINT32 Alignment
- )
-{
- VIRTIO_MMIO_DEVICE *Device;
-
- Device = VIRTIO_MMIO_DEVICE_FROM_VIRTIO_DEVICE (This);
-
- VIRTIO_CFG_WRITE (Device, VIRTIO_MMIO_OFFSET_QUEUE_ALIGN, Alignment);
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-EFIAPI
-VirtioMmioSetPageSize (
- VIRTIO_DEVICE_PROTOCOL *This,
- UINT32 PageSize
- )
-{
- VIRTIO_MMIO_DEVICE *Device;
-
- if (PageSize != EFI_PAGE_SIZE) {
- return EFI_UNSUPPORTED;
- }
-
- Device = VIRTIO_MMIO_DEVICE_FROM_VIRTIO_DEVICE (This);
-
- VIRTIO_CFG_WRITE (Device, VIRTIO_MMIO_OFFSET_GUEST_PAGE_SIZE, PageSize);
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-EFIAPI
-VirtioMmioSetQueueSel (
- VIRTIO_DEVICE_PROTOCOL *This,
- UINT16 Sel
- )
-{
- VIRTIO_MMIO_DEVICE *Device;
-
- Device = VIRTIO_MMIO_DEVICE_FROM_VIRTIO_DEVICE (This);
-
- VIRTIO_CFG_WRITE (Device, VIRTIO_MMIO_OFFSET_QUEUE_SEL, Sel);
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-VirtioMmioSetQueueAddress (
- VIRTIO_DEVICE_PROTOCOL *This,
- UINT32 Address
- )
-{
- VIRTIO_MMIO_DEVICE *Device;
-
- Device = VIRTIO_MMIO_DEVICE_FROM_VIRTIO_DEVICE (This);
-
- VIRTIO_CFG_WRITE (Device, VIRTIO_MMIO_OFFSET_QUEUE_PFN, Address);
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-EFIAPI
-VirtioMmioSetGuestFeatures (
- VIRTIO_DEVICE_PROTOCOL *This,
- UINT32 Features
- )
-{
- VIRTIO_MMIO_DEVICE *Device;
-
- Device = VIRTIO_MMIO_DEVICE_FROM_VIRTIO_DEVICE (This);
-
- VIRTIO_CFG_WRITE (Device, VIRTIO_MMIO_OFFSET_GUEST_FEATURES, Features);
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-EFIAPI
-VirtioMmioDeviceWrite (
- IN VIRTIO_DEVICE_PROTOCOL *This,
- IN UINTN FieldOffset,
- IN UINTN FieldSize,
- IN UINT64 Value
- )
-{
- UINTN DstBaseAddress;
- VIRTIO_MMIO_DEVICE *Device;
-
- Device = VIRTIO_MMIO_DEVICE_FROM_VIRTIO_DEVICE (This);
-
- //
- // Double-check fieldsize
- //
- if ((FieldSize != 1) && (FieldSize != 2) &&
- (FieldSize != 4) && (FieldSize != 8)) {
- return EFI_INVALID_PARAMETER;
- }
-
- //
- // Compute base address
- //
- DstBaseAddress = Device->BaseAddress +
- VIRTIO_DEVICE_SPECIFIC_CONFIGURATION_OFFSET_MMIO + FieldOffset;
-
- //
- // The device-specific memory area of Virtio-MMIO can only be written in
- // byte accesses. This is not currently in the Virtio spec.
- //
- MmioWriteBuffer8 (DstBaseAddress, FieldSize, (UINT8*)&Value);
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-EFIAPI
-VirtioMmioDeviceRead (
- IN VIRTIO_DEVICE_PROTOCOL *This,
- IN UINTN FieldOffset,
- IN UINTN FieldSize,
- IN UINTN BufferSize,
- OUT VOID *Buffer
- )
-{
- UINTN SrcBaseAddress;
- VIRTIO_MMIO_DEVICE *Device;
-
- Device = VIRTIO_MMIO_DEVICE_FROM_VIRTIO_DEVICE (This);
-
- //
- // Parameter validation
- //
- ASSERT (FieldSize == BufferSize);
-
- //
- // Double-check fieldsize
- //
- if ((FieldSize != 1) && (FieldSize != 2) &&
- (FieldSize != 4) && (FieldSize != 8)) {
- return EFI_INVALID_PARAMETER;
- }
-
- //
- // Compute base address
- //
- SrcBaseAddress = Device->BaseAddress +
- VIRTIO_DEVICE_SPECIFIC_CONFIGURATION_OFFSET_MMIO + FieldOffset;
-
- //
- // The device-specific memory area of Virtio-MMIO can only be read in
- // byte reads. This is not currently in the Virtio spec.
- //
- MmioReadBuffer8 (SrcBaseAddress, BufferSize, Buffer);
-
- return EFI_SUCCESS;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-21 04:31:37 +0000