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1 | /** @file\r |
2 | \r | |
3 | SEV-SNP Page Validation functions.\r | |
4 | \r | |
5 | Copyright (c) 2021 AMD Incorporated. All rights reserved.<BR>\r | |
6 | \r | |
7 | SPDX-License-Identifier: BSD-2-Clause-Patent\r | |
8 | \r | |
9 | **/\r | |
10 | \r | |
11 | #include <Uefi/UefiBaseType.h>\r | |
12 | #include <Library/BaseLib.h>\r | |
13 | #include <Library/MemEncryptSevLib.h>\r | |
14 | \r | |
15 | #include "SnpPageStateChange.h"\r | |
16 | \r | |
17 | /**\r | |
18 | Pre-validate the system RAM when SEV-SNP is enabled in the guest VM.\r | |
19 | \r | |
20 | @param[in] BaseAddress Base address\r | |
21 | @param[in] NumPages Number of pages starting from the base address\r | |
22 | \r | |
23 | **/\r | |
24 | VOID\r | |
25 | EFIAPI\r | |
26 | MemEncryptSevSnpPreValidateSystemRam (\r | |
27 | IN PHYSICAL_ADDRESS BaseAddress,\r | |
28 | IN UINTN NumPages\r | |
29 | )\r | |
30 | {\r | |
31 | if (!MemEncryptSevSnpIsEnabled ()) {\r | |
32 | return;\r | |
33 | }\r | |
34 | \r | |
35 | InternalSetPageState (BaseAddress, NumPages, SevSnpPagePrivate, TRUE);\r | |
36 | }\r |