projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 26847fb6 DG |
1 | /** @file\r |
| 2 | The file provides the protocol that disables the behavior that all memory\r | |
| 3 | gets accepted at ExitBootServices(). This protocol is only meant to be called\r | |
| 4 | by the OS loader, and not EDK2 itself. The SEV naming is due to the\r | |
| 5 | coincidence that only SEV-SNP needs this protocol, since SEV-SNP Linux\r | |
| 6 | support was released before it had support for unaccepted memory. The\r | |
| 7 | technology enablement thus does not strictly imply support for the unaccepted\r | |
| 8 | memory type.\r | |
| 9 | \r | |
| 10 | Copyright (c) 2023, Google LLC. All rights reserved.<BR>\r | |
| 11 | SPDX-License-Identifier: BSD-2-Clause-Patent\r | |
| 12 | **/\r | |
| 13 | \r | |
| 14 | #ifndef SEV_MEMORY_ACCEPTANCE_H_\r | |
| 15 | #define SEV_MEMORY_ACCEPTANCE_H_\r | |
| 16 | \r | |
| 17 | #define OVMF_SEV_MEMORY_ACCEPTANCE_PROTOCOL_GUID \\r | |
| 18 | {0xc5a010fe, \\r | |
| 19 | 0x38a7, \\r | |
| 20 | 0x4531, \\r | |
| 21 | {0x8a, 0x4a, 0x05, 0x00, 0xd2, 0xfd, 0x16, 0x49}}\r | |
| 22 | \r | |
| 23 | typedef struct _OVMF_SEV_MEMORY_ACCEPTANCE_PROTOCOL\r | |
| 24 | OVMF_SEV_MEMORY_ACCEPTANCE_PROTOCOL;\r | |
| 25 | \r | |
| 26 | /**\r | |
| 27 | @param This A pointer to a OVMF_SEV_MEMORY_ACCEPTANCE_PROTOCOL.\r | |
| 28 | **/\r | |
| 29 | typedef\r | |
| 30 | EFI_STATUS\r | |
| 31 | (EFIAPI *OVMF_SEV_ALLOW_UNACCEPTED_MEMORY)(\r | |
| 32 | IN OVMF_SEV_MEMORY_ACCEPTANCE_PROTOCOL *This\r | |
| 33 | );\r | |
| 34 | \r | |
| 35 | ///\r | |
| 36 | /// The OVMF_SEV_MEMORY_ACCEPTANCE_PROTOCOL allows the OS loader to\r | |
| 37 | /// indicate to EDK2 that ExitBootServices should not accept all memory.\r | |
| 38 | ///\r | |
| 39 | struct _OVMF_SEV_MEMORY_ACCEPTANCE_PROTOCOL {\r | |
| 40 | OVMF_SEV_ALLOW_UNACCEPTED_MEMORY AllowUnacceptedMemory;\r | |
| 41 | };\r | |
| 42 | \r | |
| 43 | #endif\r |