projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| acb81416 LE |
1 | /** @file\r |
| 2 | Definitions from the VirtIo 1.0 specification (csprd05).\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_H_\r | |
| 16 | #define _VIRTIO_1_0_H_\r | |
| 17 | \r | |
| 18 | #include <IndustryStandard/Virtio095.h>\r | |
| 19 | \r | |
| 20 | //\r | |
| 21 | // Structures for parsing the VirtIo 1.0 specific PCI capabilities from the\r | |
| 22 | // config space\r | |
| 23 | //\r | |
| 24 | #pragma pack (1)\r | |
| 25 | typedef struct {\r | |
| 26 | UINT8 CapId; // Capability identifier (generic)\r | |
| 27 | UINT8 CapNext; // Link to next capability (generic)\r | |
| 28 | } VIRTIO_PCI_CAP_LINK;\r | |
| 29 | \r | |
| 30 | typedef struct {\r | |
| 31 | UINT8 ConfigType; // Identifies the specific VirtIo 1.0 config structure\r | |
| 32 | UINT8 Bar; // The BAR that contains the structure\r | |
| 33 | UINT8 Padding[3];\r | |
| 34 | UINT32 Offset; // Offset within Bar until the start of the structure\r | |
| 35 | UINT32 Length; // Length of the structure\r | |
| 36 | } VIRTIO_PCI_CAP;\r | |
| 37 | #pragma pack ()\r | |
| 38 | \r | |
| 39 | //\r | |
| 40 | // Values for the VIRTIO_PCI_CAP.ConfigType field\r | |
| 41 | //\r | |
| 42 | #define VIRTIO_PCI_CAP_COMMON_CFG 1 // Common configuration\r | |
| 43 | #define VIRTIO_PCI_CAP_NOTIFY_CFG 2 // Notifications\r | |
| 44 | #define VIRTIO_PCI_CAP_DEVICE_CFG 4 // Device specific configuration\r | |
| 45 | \r | |
| 46 | //\r | |
| 47 | // Structure pointed-to by Bar and Offset in VIRTIO_PCI_CAP when ConfigType is\r | |
| 48 | // VIRTIO_PCI_CAP_COMMON_CFG\r | |
| 49 | //\r | |
| 50 | #pragma pack (1)\r | |
| 51 | typedef struct {\r | |
| 52 | UINT32 DeviceFeatureSelect;\r | |
| 53 | UINT32 DeviceFeature;\r | |
| 54 | UINT32 DriverFeatureSelect;\r | |
| 55 | UINT32 DriverFeature;\r | |
| 56 | UINT16 MsixConfig;\r | |
| 57 | UINT16 NumQueues;\r | |
| 58 | UINT8 DeviceStatus;\r | |
| 59 | UINT8 ConfigGeneration;\r | |
| 60 | UINT16 QueueSelect;\r | |
| 61 | UINT16 QueueSize;\r | |
| 62 | UINT16 QueueMsixVector;\r | |
| 63 | UINT16 QueueEnable;\r | |
| 64 | UINT16 QueueNotifyOff;\r | |
| 65 | UINT64 QueueDesc;\r | |
| 66 | UINT64 QueueAvail;\r | |
| 67 | UINT64 QueueUsed;\r | |
| 68 | } VIRTIO_PCI_COMMON_CFG;\r | |
| 69 | #pragma pack ()\r | |
| 70 | \r | |
| 71 | //\r | |
| 72 | // VirtIo 1.0 device status bits\r | |
| 73 | //\r | |
| 74 | #define VSTAT_FEATURES_OK BIT3\r | |
| 75 | \r | |
| 76 | //\r | |
| 77 | // VirtIo 1.0 reserved (device-independent) feature bits\r | |
| 78 | //\r | |
| 79 | #define VIRTIO_F_VERSION_1 BIT32\r | |
| 80 | \r | |
| 81 | #endif // _VIRTIO_1_0_H_\r |