Changes includes:
1. Add new MSR: MSR_SILVERMONT_PLATFORM_INFO
Cc: Michael D Kinney <[email protected]>
Cc: Ruiyu Ni <[email protected]>
Cc: Laszlo Ersek <[email protected]>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Eric Dong <[email protected]>
---
UefiCpuPkg/Include/Register/Msr/SilvermontMsr.h | 48 +++++++++++++++++++++++++
1 file changed, 48 insertions(+)
diff --git a/UefiCpuPkg/Include/Register/Msr/SilvermontMsr.h
b/UefiCpuPkg/Include/Register/Msr/SilvermontMsr.h
index 03bbd0af7c..c3d0f8c208 100644
--- a/UefiCpuPkg/Include/Register/Msr/SilvermontMsr.h
+++ b/UefiCpuPkg/Include/Register/Msr/SilvermontMsr.h
@@ -375,6 +375,54 @@ typedef union {
} MSR_SILVERMONT_FSB_FREQ_REGISTER;
+/**
+ Package. Platform Information: Contains power management and other model
+ specific features enumeration. See http://biosbits.org.
+
+ @param ECX MSR_SILVERMONT_PLATFORM_INFO (0x000000CE)
+ @param EAX Lower 32-bits of MSR value.
+ Described by the type MSR_SILVERMONT_PLATFORM_INFO_REGISTER.
+ @param EDX Upper 32-bits of MSR value.
+ Described by the type MSR_SILVERMONT_PLATFORM_INFO_REGISTER.
+
+ <b>Example usage</b>
+ @code
+ MSR_SILVERMONT_PLATFORM_INFO_REGISTER Msr;
+
+ Msr.Uint64 = AsmReadMsr64 (MSR_SILVERMONT_PLATFORM_INFO);
+ AsmWriteMsr64 (MSR_SILVERMONT_PLATFORM_INFO, Msr.Uint64);
+ @endcode
+**/
+#define MSR_SILVERMONT_PLATFORM_INFO 0x000000CE
+
+/**
+ MSR information returned for MSR index #MSR_SILVERMONT_PLATFORM_INFO
+**/
+typedef union {
+ ///
+ /// Individual bit fields
+ ///
+ struct {
+ UINT32 Reserved1:8;
+ ///
+ /// [Bits 15:8] Package. Maximum Non-Turbo Ratio (R/O) This is the ratio
+ /// of the maximum frequency that does not require turbo. Frequency =
+ /// ratio * Scalable Bus Frequency.
+ ///
+ UINT32 MaximumNon_TurboRatio:8;
+ UINT32 Reserved2:16;
+ UINT32 Reserved3:32;
+ } Bits;
+ ///
+ /// All bit fields as a 32-bit value
+ ///
+ UINT32 Uint32;
+ ///
+ /// All bit fields as a 64-bit value
+ ///
+ UINT64 Uint64;
+} MSR_SILVERMONT_PLATFORM_INFO_REGISTER;
+
/**
Module. C-State Configuration Control (R/W) Note: C-state values are
processor specific C-state code names, unrelated to MWAIT extension C-state
--
2.15.0.windows.1
_______________________________________________
edk2-devel mailing list
[email protected]
https://lists.01.org/mailman/listinfo/edk2-devel
