Re: [PATCH v1] MdePkg/Cpuid.h: Define new element in CPUID Leaf(07h) data structure.


Ni, Ray
 

Since Reserved2 and Reserved3 are changed, please use new name Reserved4, 5, 6.

-----Original Message-----
From: Lou, Yun <yun.lou@intel.com>
Sent: Thursday, April 8, 2021 2:35 PM
To: devel@edk2.groups.io
Cc: Lou, Yun <yun.lou@intel.com>; Kinney, Michael D
<michael.d.kinney@intel.com>; Liming Gao <gaoliming@byosoft.com.cn>;
Liu, Zhiguang <zhiguang.liu@intel.com>; Ni, Ray <ray.ni@intel.com>
Subject: [PATCH v1] MdePkg/Cpuid.h: Define new element in CPUID
Leaf(07h) data structure.

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3309

Define new element(Hybird) in
CPUID_STRUCTURED_EXTENDED_FEATURE_FLAGS
(07h) data structure.

Signed-off-by: Jason Lou <yun.lou@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
---
MdePkg/Include/Register/Intel/Cpuid.h | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/MdePkg/Include/Register/Intel/Cpuid.h
b/MdePkg/Include/Register/Intel/Cpuid.h
index 19af99b6af..e7c0fd17e7 100644
--- a/MdePkg/Include/Register/Intel/Cpuid.h
+++ b/MdePkg/Include/Register/Intel/Cpuid.h
@@ -1550,9 +1550,17 @@ typedef union {
///

UINT32 AVX512_4FMAPS:1;

///

- /// [Bit 25:4] Reserved.

+ /// [Bit 14:4] Reserved.

///

- UINT32 Reserved2:22;

+ UINT32 Reserved2:11;

+ ///

+ /// [Bit 15] Hybrid. If 1, the processor is identified as a hybrid part.

+ ///

+ UINT32 Hybrid:1;

+ ///

+ /// [Bit 25:16] Reserved.

+ ///

+ UINT32 Reserved3:10;

///

/// [Bit 26] Enumerates support for indirect branch restricted speculation

/// (IBRS) and the indirect branch pre-dictor barrier (IBPB). Processors

@@ -1581,7 +1589,7 @@ typedef union {
///

/// [Bit 30] Reserved.

///

- UINT32 Reserved3:1;

+ UINT32 Reserved4:1;

///

/// [Bit 31] Enumerates support for Speculative Store Bypass Disable
(SSBD).

/// Processors that set this bit sup-port the IA32_SPEC_CTRL MSR. They
allow

--
2.28.0.windows.1

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