UefiCpuPkg/MpInitLib: Add code to initialize MapMask

In function CreatePageTable(), add code to initialize MapMask to
MAX_UINT64. When creating new page table or map non-present range
to present, all attributes should be provided.

Signed-off-by: Dun Tan <dun.tan@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Tested-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>

1 files changed, 1 insertions, 4 deletions

diff --git a/UefiCpuPkg/Library/MpInitLib/X64/CreatePageTable.c b/UefiCpuPkg/Library/MpInitLib/X64/CreatePageTable.c
index 7cf91ed9c4..f20068152b 100644
--- a/UefiCpuPkg/Library/MpInitLib/X64/CreatePageTable.c
+++ b/UefiCpuPkg/Library/MpInitLib/X64/CreatePageTable.c
@@ -36,10 +36,7 @@ CreatePageTable (
   MapAttribute.Uint64         = Address;

   MapAttribute.Bits.Present   = 1;

   MapAttribute.Bits.ReadWrite = 1;

-

-  MapMask.Bits.PageTableBaseAddress = 1;

-  MapMask.Bits.Present              = 1;

-  MapMask.Bits.ReadWrite            = 1;

+  MapMask.Uint64              = MAX_UINT64;

 

   PageTable           = 0;

   PageTableBufferSize = 0;