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OvmfPkg/QemuFlashFvbServicesRuntimeDxe: use Mmio helper to clear enc mask 

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

Use the MemEncryptSevClearMmioPageEncMask() to clear memory encryption mask
for the Mmio 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: <20210519181949.6574-12-brijesh.singh@amd.com>
This commit is contained in:
Brijesh Singh 2021-05-19 13:19:47 -05:00 committed by mergify[bot]
parent c394fa4c9e
commit 8ee4e52ba8
2 changed files with 4 additions and 6 deletions
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5
OvmfPkg/QemuFlashFvbServicesRuntimeDxe/FwBlockServiceDxe.c
View File

@ -205,11 +205,10 @@ MarkIoMemoryRangeForRuntimeAccess (
// memory range. // memory range.
// //
if (MemEncryptSevIsEnabled ()) { if (MemEncryptSevIsEnabled ()) {
Status = MemEncryptSevClearPageEncMask ( Status = MemEncryptSevClearMmioPageEncMask (
0, 0,
BaseAddress, BaseAddress,
EFI_SIZE_TO_PAGES (Length), EFI_SIZE_TO_PAGES (Length)
FALSE
); );
ASSERT_EFI_ERROR (Status); ASSERT_EFI_ERROR (Status);
} }

5
OvmfPkg/QemuFlashFvbServicesRuntimeDxe/QemuFlashSmm.c
View File

@ -38,11 +38,10 @@ QemuFlashBeforeProbe (
// C-bit on flash ranges from SMM page table. // C-bit on flash ranges from SMM page table.
// //
Status = MemEncryptSevClearPageEncMask ( Status = MemEncryptSevClearMmioPageEncMask (
0, 0,
BaseAddress, BaseAddress,
EFI_SIZE_TO_PAGES (FdBlockSize * FdBlockCount), EFI_SIZE_TO_PAGES (FdBlockSize * FdBlockCount)
FALSE
); );
ASSERT_EFI_ERROR (Status); ASSERT_EFI_ERROR (Status);
} }