From: Ranbir Singh <Ranbir.Singh3@...> Line number 365 does contain a typecast with UINT32, but it is after all the operations (16-bit left shift followed by OR'ing) are over. To avoid any SIGN_EXTENS

Remove RO and NX protection when unset guard page. When UnsetGuardPage(), remove all the memory attribute protection for guarded page. Signed-off-by: Dun Tan <dun.tan@...> Cc: Liming Gao <gaoliming@..

Remove code that apply AddressEncMask to non-leaf entry when split smm page table by MemEncryptSevLib. In FvbServicesSmm driver, it calls MemEncryptSevClearMmioPageEncMask to clear AddressEncMask bit

In ConvertMemoryPageAttributes() function, when clear RP for a specific range [BaseAddress, BaseAddress + Length], it means to set the present bit to 1 and assign default value for other attributes in

In PiSmmCpuDxeSmm code, SetMemMapAttributes() marks memory ranges in SmmMemoryAttributesTable to RO/NX. There may exist non-present range in these memory ranges. Set other attributes for a non-present

Simplify the ConvertMemoryPageAttributes API to convert paging attribute by CpuPageTableLib. In the new API, it calls PageTableMap() to update the page attributes of a memory range. With the PageTable

Extern mSmmShadowStackSize in PiSmmCpuDxeSmm.h and remove extern for mSmmShadowStackSize in c files to simplify code. Signed-off-by: Dun Tan <dun.tan@...> Cc: Eric Dong <eric.dong@...> Cc: Ray Ni <ray

This commit is code refinement to current smm runtime InitPaging() page table update code. In InitPaging(), if PcdCpuSmmProfileEnable is TRUE, use ConvertMemoryPageAttributes() API to map the range in

Sort mProtectionMemRange in InitProtectedMemRange() when ReadyToLock. Signed-off-by: Dun Tan <dun.tan@...> Cc: Eric Dong <eric.dong@...> Cc: Ray Ni <ray.ni@...> Cc: Rahul Kumar <rahul1.kumar@...> Cc:

Sort mSmmCpuSmramRanges after get the SMRAM info in FindSmramInfo() function. Signed-off-by: Dun Tan <dun.tan@...> Cc: Eric Dong <eric.dong@...> Cc: Ray Ni <ray.ni@...> Cc: Rahul Kumar <rahul1.kumar@.

This commit is code refinement to current smm pagetable generation code. Add a new GenSmmPageTable() API to create smm page table based on the PageTableMap() API in CpuPageTableLib. Caller only needs

From: MarsX Lin <marsx.lin@...> REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3D4479 CapsuleRuntimeDxe consume null CapsuleLib instance and move the driver into BDSFV. then, platform code could

I create the PR: ShellPkg/SmbiosView: type 45 and type 46 support. by ZhichaoGao · Pull Request #4528 · tianocore/edk2 (github.com) But it fail because some CI canceled. Thanks, Zhichao

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3394 Using new API GetMaxPlatformAddressBits, MtrrLib Unit Test needs to provide the value of MSR MSR_IA32_TME_CAPABILITY. Cc: Eric Dong <eric.dong@

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3394 With new API GetMaxPlatformAddressBits, the API MtrrLibInitializeMtrrMask and InitializeMtrrMask can be replaced. Cc: Eric Dong <eric.dong@...>

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3394 Add new API GetMaxPlatformAddressBits to get the max platform address bits. Max physical address bits can be get from CPUID. When TME-MK featur

Remove unnecessary function SetNotPresentPage(). We can directly use ConvertMemoryPageAttributes to set a range to non-present. Signed-off-by: Dun Tan <dun.tan@...> Cc: Eric Dong <eric.dong@...> Revie

Use GenSmmPageTable() to create both IA32 and X64 Smm S3 page table. Signed-off-by: Dun Tan <dun.tan@...> Cc: Eric Dong <eric.dong@...> Reviewed-by: Ray Ni <ray.ni@...> Cc: Rahul Kumar <rahul1.kumar@.

Clear CR0.WP before modify smm page table. Currently, there is an assumption that smm pagetable is always RW before ReadyToLock. However, when AMD SEV is enabled, FvbServicesSmm driver calls MemEncryp

Add two functions to disable/enable CR0.WP. These two unctions will also be used in later commits. This commit doesn't change any functionality. Signed-off-by: Dun Tan <dun.tan@...> Cc: Eric Dong <eri