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MdePkg/BaseLib: Add Shadow Stack Support for X86.

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REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1521

This patch adds SSP - shadow stack pointer to JumpBuffer.
It will be used for the platform that enabled CET/ShadowStack.

We add gEfiMdePkgTokenSpaceGuid.PcdControlFlowEnforcementPropertyMask
to control the global enable/disable.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Yao Jiewen <jiewen.yao@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Regression-tested-by: Laszlo Ersek <lersek@redhat.com>
This commit is contained in:
Yao, Jiewen
2019-02-22 21:30:34 +08:00
committed by Liming Gao
parent 68edd7dbad
commit 0aac2f777a
9 changed files with 159 additions and 7 deletions
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2
MdePkg/Include/Library/BaseLib.h
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@@ -31,6 +31,7 @@ typedef struct {
UINT32 Ebp;
UINT32 Esp;
UINT32 Eip;
UINT32 Ssp;
} BASE_LIBRARY_JUMP_BUFFER;
#define BASE_LIBRARY_JUMP_BUFFER_ALIGNMENT 4
@@ -54,6 +55,7 @@ typedef struct {
UINT64 Rip;
UINT64 MxCsr;
UINT8 XmmBuffer[160]; ///< XMM6-XMM15.
UINT64 Ssp;
} BASE_LIBRARY_JUMP_BUFFER;
#define BASE_LIBRARY_JUMP_BUFFER_ALIGNMENT 8