projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 9399f68a LE |
1 | /** @file\r |
| 2 | Private definitions of the VirtIo 1.0 driver.\r | |
| 3 | \r | |
| 4 | Copyright (C) 2016, Red Hat, Inc.\r | |
| 5 | \r | |
| 6 | This program and the accompanying materials are licensed and made available\r | |
| 7 | under the terms and conditions of the BSD License which accompanies this\r | |
| 8 | distribution. The full text of the license may be found at\r | |
| 9 | http://opensource.org/licenses/bsd-license.php\r | |
| 10 | \r | |
| 11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT\r | |
| 12 | WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
| 13 | **/\r | |
| 14 | \r | |
| 15 | #ifndef _VIRTIO_1_0_DXE_H_\r | |
| 16 | #define _VIRTIO_1_0_DXE_H_\r | |
| 17 | \r | |
| 18 | #include <Protocol/PciIo.h>\r | |
| 19 | #include <Protocol/VirtioDevice.h>\r | |
| 20 | \r | |
| 21 | #define VIRTIO_1_0_SIGNATURE SIGNATURE_32 ('V', 'I', 'O', '1')\r | |
| 22 | \r | |
| 23 | //\r | |
| 24 | // Type of the PCI BAR that contains a VirtIo 1.0 config structure.\r | |
| 25 | //\r | |
| 26 | typedef enum {\r | |
| 27 | Virtio10BarTypeMem,\r | |
| 28 | Virtio10BarTypeIo\r | |
| 29 | } VIRTIO_1_0_BAR_TYPE;\r | |
| 30 | \r | |
| 31 | //\r | |
| 32 | // The type below defines the access to a VirtIo 1.0 config structure.\r | |
| 33 | //\r | |
| 34 | typedef struct {\r | |
| 35 | BOOLEAN Exists; // The device exposes this structure\r | |
| 36 | VIRTIO_1_0_BAR_TYPE BarType;\r | |
| 37 | UINT8 Bar;\r | |
| 38 | UINT32 Offset; // Offset into BAR where structure starts\r | |
| 39 | UINT32 Length; // Length of structure in BAR.\r | |
| 40 | } VIRTIO_1_0_CONFIG;\r | |
| 41 | \r | |
| 42 | typedef struct {\r | |
| 43 | UINT32 Signature;\r | |
| 44 | VIRTIO_DEVICE_PROTOCOL VirtIo;\r | |
| 45 | EFI_PCI_IO_PROTOCOL *PciIo;\r | |
| 46 | UINT64 OriginalPciAttributes;\r | |
| 47 | VIRTIO_1_0_CONFIG CommonConfig; // Common settings\r | |
| 48 | VIRTIO_1_0_CONFIG NotifyConfig; // Notifications\r | |
| 49 | UINT32 NotifyOffsetMultiplier;\r | |
| 50 | VIRTIO_1_0_CONFIG SpecificConfig; // Device specific settings\r | |
| 51 | } VIRTIO_1_0_DEV;\r | |
| 52 | \r | |
| 53 | #define VIRTIO_1_0_FROM_VIRTIO_DEVICE(Device) \\r | |
| 54 | CR (Device, VIRTIO_1_0_DEV, VirtIo, VIRTIO_1_0_SIGNATURE)\r | |
| 55 | \r | |
| 56 | #endif // _VIRTIO_1_0_DXE_H_\r |