From: "Ni, Ray" <ray.ni@intel.com>
To: devel@edk2.groups.io
Cc: Eric Dong <eric.dong@intel.com>
Subject: [PATCH 2/3] MdePkg/BaseLib.h: Update IA32_CR4 structure for 5-level paging
Date: Fri, 28 Jun 2019 14:46:59 +0800 [thread overview]
Message-ID: <20190628064700.549472-3-ray.ni@intel.com> (raw)
In-Reply-To: <20190628064700.549472-1-ray.ni@intel.com>
5-level paging is documented in white paper:
https://software.intel.com/sites/default/files/managed/2b/80/5-level_paging_white_paper.pdf
Commit f8113e25001e715390127f23e2197252cbd6d1a2
changed Cpuid.h already.
This patch updates IA32_CR4 structure to include LA57 field.
Signed-off-by: Ray Ni <ray.ni@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
---
MdePkg/Include/Library/BaseLib.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/MdePkg/Include/Library/BaseLib.h b/MdePkg/Include/Library/BaseLib.h
index ebd7dd274c..a22bfc9fad 100644
--- a/MdePkg/Include/Library/BaseLib.h
+++ b/MdePkg/Include/Library/BaseLib.h
@@ -5324,7 +5324,8 @@ typedef union {
UINT32 OSXMMEXCPT:1; ///< Operating System Support for
///< Unmasked SIMD Floating Point
///< Exceptions.
- UINT32 Reserved_0:2; ///< Reserved.
+ UINT32 Reserved_2:1; ///< Reserved.
+ UINT32 LA57:1; ///< Linear Address 57bit.
UINT32 VMXE:1; ///< VMX Enable
UINT32 Reserved_1:18; ///< Reserved.
} Bits;
--
2.21.0.windows.1
next prev parent reply other threads:[~2019-06-28 6:47 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-28 6:46 [PATCH 0/3] Enable 5 level paging when CPU supports Ni, Ray
2019-06-28 6:46 ` [PATCH 1/3] UefiCpuPkg/PiSmmCpu: Change variable names and comments to follow SDM Ni, Ray
2019-06-28 6:46 ` Ni, Ray [this message]
2019-06-28 6:47 ` [PATCH 3/3] UefiCpuPkg/PiSmmCpu: Enable 5 level paging when CPU supports Ni, Ray
2019-06-28 7:18 ` [edk2-devel] " Yao, Jiewen
2019-06-28 7:27 ` Ni, Ray
2019-06-28 15:32 ` Laszlo Ersek
2019-06-28 15:36 ` Laszlo Ersek
2019-07-01 12:44 ` Laszlo Ersek
2019-07-02 14:44 ` Ni, Ray
2019-07-02 15:18 ` Laszlo Ersek
2019-07-02 15:20 ` Laszlo Ersek
2019-07-03 10:08 ` Laszlo Ersek
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