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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 |