diff options
Diffstat (limited to 'OvmfPkg/Library/BaseMemEncryptSevLib/X64/MemEncryptSevLib.c')
| -rw-r--r-- | OvmfPkg/Library/BaseMemEncryptSevLib/X64/MemEncryptSevLib.c | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/OvmfPkg/Library/BaseMemEncryptSevLib/X64/MemEncryptSevLib.c b/OvmfPkg/Library/BaseMemEncryptSevLib/X64/MemEncryptSevLib.c index cf0921e214..4fea6a6be0 100644 --- a/OvmfPkg/Library/BaseMemEncryptSevLib/X64/MemEncryptSevLib.c +++ b/OvmfPkg/Library/BaseMemEncryptSevLib/X64/MemEncryptSevLib.c @@ -2,7 +2,7 @@ Secure Encrypted Virtualization (SEV) library helper function
- Copyright (c) 2017, AMD Incorporated. All rights reserved.<BR>
+ Copyright (c) 2017 - 2020, AMD Incorporated. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
@@ -88,3 +88,33 @@ MemEncryptSevSetPageEncMask ( Flush
);
}
+
+/**
+ Returns the encryption state of the specified virtual address range.
+
+ @param[in] Cr3BaseAddress Cr3 Base Address (if zero then use
+ current CR3)
+ @param[in] BaseAddress Base address to check
+ @param[in] Length Length of virtual address range
+
+ @retval MemEncryptSevAddressRangeUnencrypted Address range is mapped
+ unencrypted
+ @retval MemEncryptSevAddressRangeEncrypted Address range is mapped
+ encrypted
+ @retval MemEncryptSevAddressRangeMixed Address range is mapped mixed
+ @retval MemEncryptSevAddressRangeError Address range is not mapped
+**/
+MEM_ENCRYPT_SEV_ADDRESS_RANGE_STATE
+EFIAPI
+MemEncryptSevGetAddressRangeState (
+ IN PHYSICAL_ADDRESS Cr3BaseAddress,
+ IN PHYSICAL_ADDRESS BaseAddress,
+ IN UINTN Length
+ )
+{
+ return InternalMemEncryptSevGetAddressRangeState (
+ Cr3BaseAddress,
+ BaseAddress,
+ Length
+ );
+}
|