audk/UefiCpuPkg/PiSmmCpuDxeSmm/X64
Vanguput, Narendra K 37f9fea5b8 UefiCpuPkg\CpuSmm: Save & restore CR2 on-demand paging in SMM
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=1593

For every SMI occurrence, save and restore CR2 register only when SMM
on-demand paging support is enabled in 64 bit operation mode.
This is not a bug but to have better improvement of code.

Patch5 is updated with separate functions for Save and Restore of CR2
based on review feedback.

Patch6 - Removed Global Cr2 instead used function parameter.

Patch7 - Removed checking Cr2 with 0 as per feedback.

Patch8 and 9 - Aligned with EDK2 Coding style.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Vanguput Narendra K <narendra.k.vanguput@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Yao Jiewen <jiewen.yao@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Nate DeSimone <nathaniel.l.desimone@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Regression-tested-by: Laszlo Ersek <lersek@redhat.com>
2019-04-04 14:00:32 +08:00
..
Cet.nasm UefiCpuPkg/PiSmmCpu: Add Shadow Stack Support for X86 SMM. 2019-02-28 09:39:54 +08:00
MpFuncs.nasm UefiCpuPkg: Update PiSmmCpuDxeSmm pass XCODE5 tool chain 2018-01-16 23:43:08 +08:00
PageTbl.c UefiCpuPkg\CpuSmm: Save & restore CR2 on-demand paging in SMM 2019-04-04 14:00:32 +08:00
Semaphore.c UefiCpuPkg/PiSmmCpuDxeSmm: remove DBs from SmmRelocationSemaphoreComplete32() 2018-04-04 16:44:25 +02:00
SmiEntry.nasm UefiCpuPkg/PiSmmCpu: Add Shadow Stack Support for X86 SMM. 2019-02-28 09:39:54 +08:00
SmiException.nasm UefiCpuPkg/PiSmmCpuDxeSmm: use mnemonics for FXSAVE(64)/FXRSTOR(64) 2018-04-04 16:44:27 +02:00
SmmFuncsArch.c UefiCpuPkg/PiSmmCpu: Add Shadow Stack Support for X86 SMM. 2019-02-28 09:39:54 +08:00
SmmInit.nasm UefiCpuPkg: Merge StuffRsb.inc files into one in UefiCpuPkg/Include 2019-01-02 09:45:29 +08:00
SmmProfileArch.c UefiCpuPkg/PiSmmCpuDxeSmm: Add support for PCD PcdPteMemoryEncryptionAddressOrMask 2017-03-01 12:53:03 +08:00
SmmProfileArch.h