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1 | /** @file\r |
2 | The definition for platform VTD policy.\r | |
3 | \r | |
4 | Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>\r | |
5 | This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php.\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | #ifndef __PLATFORM_VTD_POLICY_PROTOCOL_H__\r | |
16 | #define __PLATFORM_VTD_POLICY_PROTOCOL_H__\r | |
17 | \r | |
18 | #include <IndustryStandard/Vtd.h>\r | |
19 | \r | |
20 | #define EDKII_PLATFORM_VTD_POLICY_PROTOCOL_GUID \\r | |
21 | { \\r | |
22 | 0x3d17e448, 0x466, 0x4e20, { 0x99, 0x9f, 0xb2, 0xe1, 0x34, 0x88, 0xee, 0x22 } \\r | |
23 | }\r | |
24 | \r | |
25 | typedef struct _EDKII_PLATFORM_VTD_POLICY_PROTOCOL EDKII_PLATFORM_VTD_POLICY_PROTOCOL;\r | |
26 | \r | |
27 | #define EDKII_PLATFORM_VTD_POLICY_PROTOCOL_REVISION 0x00010000\r | |
28 | \r | |
29 | typedef struct {\r | |
30 | UINT16 Segment;\r | |
31 | VTD_SOURCE_ID SourceId;\r | |
32 | } EDKII_PLATFORM_VTD_DEVICE_INFO;\r | |
33 | \r | |
34 | /**\r | |
35 | Get the VTD SourceId from the device handler.\r | |
36 | This function is required for non PCI device handler.\r | |
37 | \r | |
38 | Pseudo-algo in Intel VTd driver:\r | |
39 | Status = PlatformGetVTdDeviceId ();\r | |
40 | if (EFI_ERROR(Status)) {\r | |
41 | if (DeviceHandle is PCI) {\r | |
42 | Get SourceId from Bus/Device/Function\r | |
43 | } else {\r | |
44 | return EFI_UNSUPPORTED\r | |
45 | }\r | |
46 | }\r | |
47 | Get VTd engine by Segment/Bus/Device/Function.\r | |
48 | \r | |
49 | @param[in] This The protocol instance pointer.\r | |
50 | @param[in] DeviceHandle Device Identifier in UEFI.\r | |
51 | @param[out] DeviceInfo DeviceInfo for indentify the VTd engine in ACPI Table\r | |
52 | and the VTd page entry.\r | |
53 | \r | |
54 | @retval EFI_SUCCESS The VtdIndex and SourceId are returned.\r | |
55 | @retval EFI_INVALID_PARAMETER DeviceHandle is not a valid handler.\r | |
56 | @retval EFI_INVALID_PARAMETER DeviceInfo is NULL.\r | |
57 | @retval EFI_NOT_FOUND The Segment or SourceId information is NOT found.\r | |
58 | @retval EFI_UNSUPPORTED This function is not supported.\r | |
59 | \r | |
60 | **/\r | |
61 | typedef\r | |
62 | EFI_STATUS\r | |
63 | (EFIAPI *EDKII_PLATFORM_VTD_POLICY_GET_DEVICE_ID) (\r | |
64 | IN EDKII_PLATFORM_VTD_POLICY_PROTOCOL *This,\r | |
65 | IN EFI_HANDLE DeviceHandle,\r | |
66 | OUT EDKII_PLATFORM_VTD_DEVICE_INFO *DeviceInfo\r | |
67 | );\r | |
68 | \r | |
69 | /**\r | |
70 | Get a list of the exception devices.\r | |
71 | \r | |
72 | The VTd driver should always set ALLOW for the device in this list.\r | |
73 | \r | |
74 | @param[in] This The protocol instance pointer.\r | |
75 | @param[out] DeviceInfoCount The count of the list of DeviceInfo.\r | |
76 | @param[out] DeviceInfo A callee allocated buffer to hold a list of DeviceInfo.\r | |
77 | \r | |
78 | @retval EFI_SUCCESS The DeviceInfoCount and DeviceInfo are returned.\r | |
79 | @retval EFI_INVALID_PARAMETER DeviceInfoCount is NULL, or DeviceInfo is NULL.\r | |
80 | @retval EFI_UNSUPPORTED This function is not supported.\r | |
81 | \r | |
82 | **/\r | |
83 | typedef\r | |
84 | EFI_STATUS\r | |
85 | (EFIAPI *EDKII_PLATFORM_VTD_POLICY_GET_EXCEPTION_DEVICE_LIST) (\r | |
86 | IN EDKII_PLATFORM_VTD_POLICY_PROTOCOL *This,\r | |
87 | OUT UINTN *DeviceInfoCount,\r | |
88 | OUT EDKII_PLATFORM_VTD_DEVICE_INFO **DeviceInfo\r | |
89 | );\r | |
90 | \r | |
91 | struct _EDKII_PLATFORM_VTD_POLICY_PROTOCOL {\r | |
92 | UINT64 Revision;\r | |
93 | EDKII_PLATFORM_VTD_POLICY_GET_DEVICE_ID GetDeviceId;\r | |
94 | EDKII_PLATFORM_VTD_POLICY_GET_EXCEPTION_DEVICE_LIST GetExceptionDeviceList;\r | |
95 | };\r | |
96 | \r | |
97 | extern EFI_GUID gEdkiiPlatformVTdPolicyProtocolGuid;\r | |
98 | \r | |
99 | #endif\r | |
100 | \r |