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OvmfPkg/AmdSevDxe: use MemEncryptSevClearMmioPageEncMask() to clear EncMask 

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3275

Use the MemEncryptSevClearMmioPageEncMask() to clear memory encryption mask
for the Mmio and NonExistent address range.

Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Min Xu <min.m.xu@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Erdem Aktas <erdemaktas@google.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Message-Id: <20210519181949.6574-11-brijesh.singh@amd.com>
This commit is contained in:
Brijesh Singh 2021-05-19 13:19:46 -05:00 committed by mergify[bot]
parent 901a9bfc3a
commit c394fa4c9e
1 changed files with 4 additions and 6 deletions
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10
OvmfPkg/AmdSevDxe/AmdSevDxe.c
View File

@ -53,11 +53,10 @@ AmdSevDxeEntryPoint (
Desc = &AllDescMap[Index]; Desc = &AllDescMap[Index];
if (Desc->GcdMemoryType == EfiGcdMemoryTypeMemoryMappedIo || if (Desc->GcdMemoryType == EfiGcdMemoryTypeMemoryMappedIo ||
Desc->GcdMemoryType == EfiGcdMemoryTypeNonExistent) { Desc->GcdMemoryType == EfiGcdMemoryTypeNonExistent) {
Status = MemEncryptSevClearPageEncMask ( Status = MemEncryptSevClearMmioPageEncMask (
0, 0,
Desc->BaseAddress, Desc->BaseAddress,
EFI_SIZE_TO_PAGES (Desc->Length), EFI_SIZE_TO_PAGES (Desc->Length)
FALSE
); );
ASSERT_EFI_ERROR (Status); ASSERT_EFI_ERROR (Status);
} }
@ -73,11 +72,10 @@ AmdSevDxeEntryPoint (
// the range. // the range.
// //
if (PcdGet16 (PcdOvmfHostBridgePciDevId) == INTEL_Q35_MCH_DEVICE_ID) { if (PcdGet16 (PcdOvmfHostBridgePciDevId) == INTEL_Q35_MCH_DEVICE_ID) {
Status = MemEncryptSevClearPageEncMask ( Status = MemEncryptSevClearMmioPageEncMask (
0, 0,
FixedPcdGet64 (PcdPciExpressBaseAddress), FixedPcdGet64 (PcdPciExpressBaseAddress),
EFI_SIZE_TO_PAGES (SIZE_256MB), EFI_SIZE_TO_PAGES (SIZE_256MB)
FALSE
); );
ASSERT_EFI_ERROR (Status); ASSERT_EFI_ERROR (Status);