[PATCH v2] Update Architecture MSR to follow latest SDM.

[william2.wang@intel.com]

From: William2 Wang <william2.wang@intel.com>

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4262

Update Architecture MSR contains the MSR10A.BIT23 and
MSR195.BIT2-0 for overclocking undervolt protection.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Donald Kuo <Donald.Kuo@intel.com>
Cc: Chandana C Kumar <chandana.c.kumar@intel.com>
---
 MdePkg/Include/Register/Intel/ArchitecturalMsr.h | 198 ++++++++++++++++++++
 1 file changed, 198 insertions(+)

diff --git a/MdePkg/Include/Register/Intel/ArchitecturalMsr.h b/MdePkg/Include/Register/Intel/ArchitecturalMsr.h
index 071a8c689c..f548b56672 100644
--- a/MdePkg/Include/Register/Intel/ArchitecturalMsr.h
+++ b/MdePkg/Include/Register/Intel/ArchitecturalMsr.h
@@ -682,6 +682,149 @@ typedef union {
   UINT64    Uint64;
 } MSR_IA32_MTRRCAP_REGISTER;
 
+/**
+  Enumeration of Architectural Features (R/O). If CPUID.(EAX=07H, ECX=0):EDX[29]=1.
+
+  @param  ECX  IA32_ARCH_CAPABILITIES (0x0000010A)
+  @param  EAX  Lower 32-bits of MSR value.
+               Described by the type IA32_ARCH_CAPABILITIES_REGISTER.
+  @param  EDX  Upper 32-bits of MSR value.
+               Described by the type IA32_ARCH_CAPABILITIES_REGISTER.
+
+  <b>Example usage</b>
+  @code
+  IA32_ARCH_CAPABILITIES_REGISTER  Msr;
+
+  Msr.Uint64 = AsmReadMsr64 (IA32_ARCH_CAPABILITIES);
+  @endcode
+  @note IA32_ARCH_CAPABILITIES is defined as IA32_ARCH_CAPABILITIES in SDM.
+**/
+#define IA32_ARCH_CAPABILITIES  0x0000010A
+
+/**
+  MSR information returned for MSR index #IA32_ARCH_CAPABILITIES
+**/
+typedef union {
+  ///
+  /// Individual bit fields
+  ///
+  struct {
+    ///
+    /// [Bits 0]  RDCL_NO: The processor is not susceptible to Rogue Data Cache Load (RDCL).
+    ///
+    UINT32    RDCL_NO              : 1;
+    ///
+    /// [Bit 1] IBRS_ALL: The processor supports enhanced IBRS.
+    ///
+    UINT32    IBRS_ALL             : 1;
+    ///
+    /// [Bit 2] RSBA: The processor supports RSB Alternate. Alternative branch predictors
+    /// may be used by RET instructions when the RSB is empty. SW using retpoline may be
+    /// affected by this behavior.
+    ///
+    UINT32    RSBA                 : 1;
+    ///
+    /// [Bit 3] SKIP_L1DFL_VMENTRY: A value of 1 indicates the hypervisor need not flush the
+    /// L1D on VM entry.
+    ///
+    UINT32    SKIP_L1DFL_VMENTRY   : 1;
+    ///
+    /// [Bit 4] SSB_NO: Processor is not susceptible to Speculative Store Bypass.
+    ///
+    UINT32    SSB_NO               : 1;
+    ///
+    /// [Bit 5] MDS_NO: Processor is not susceptible to Microarchitectural Data Sampling (MDS).
+    ///
+    UINT32    MDS_NO               : 1;
+    ///
+    /// [Bit 6] IF_PSCHANGE_MC_NO: The processor is not susceptible to a machine check error due to
+    /// modifying the size of a code page without TLB invalidation.
+    ///
+    UINT32    IF_PSCHANGE_MC_NO    : 1;
+    ///
+    /// [Bit 7] TSX_CTRL: If 1, indicates presence of IA32_TSX_CTRL MSR.
+    ///
+    UINT32    TSX_CTRL             : 1;
+    ///
+    /// [Bit 8] TAA_NO: If 1, processor is not affected by TAA.
+    ///
+    UINT32    TAA_NO               : 1;
+    UINT32    Reserved1            : 1;
+    ///
+    /// [Bit 10] MISC_PACKAGE_CTLS: The processor supports IA32_MISC_PACKAGE_CTLS MSR.
+    ///
+    UINT32    MISC_PACKAGE_CTLS    : 1;
+    ///
+    /// [Bit 11] ENERGY_FILTERING_CTL: The processor supports setting and reading the
+    /// IA32_MISC_PACKAGE_CTLS[0] (ENERGY_FILTERING_ENABLE) bit.
+    ///
+    UINT32    ENERGY_FILTERING_CTL : 1;
+    ///
+    /// [Bit 12] DOITM: If 1, the processor supports Data Operand Independent Timing Mode.
+    ///
+    UINT32    DOITM                : 1;
+    ///
+    /// [Bit 13] SBDR_SSDP_NO: The processor is not affected by either the Shared Buffers Data
+    /// Read (SBDR) vulnerability or the Sideband Stale Data Propagator (SSDP).
+    ///
+    UINT32    SBDR_SSDP_NO         : 1;
+    ///
+    /// [Bit 14] FBSDP_NO: The processor is not affected by the Fill Buffer Stale Data Propagator (FBSDP).
+    ///
+    UINT32    FBSDP_NO             : 1;
+    ///
+    /// [Bit 15] PSDP_NO: The processor is not affected by vulnerabilities involving the Primary Stale Data Propagator (PSDP).
+    ///
+    UINT32    PSDP_NO              : 1;
+    UINT32    Reserved2            : 1;
+    ///
+    /// [Bit 17] FB_CLEAR: If 1, the processor supports overwrite of fill buffer values as part of MD_CLEAR operations
+    /// with the VERW instruction.
+    ///
+    UINT32    FB_CLEAR             : 1;
+    ///
+    /// [Bit 18] FB_CLEAR_CTRL: If 1, the processor supports the IA32_MCU_OPT_CTRL MSR
+    /// and allows software to set bit 3 of that MSR (FB_CLEAR_DIS).
+    ///
+    UINT32    FB_CLEAR_CTRL        : 1;
+    ///
+    /// [Bit 19] RRSBA: A value of 1 indicates the processor may have the RRSBA alternate prediction
+    /// behavior, if not disabled by RRSBA_DIS_U or RRSBA_DIS_S.
+    ///
+    UINT32    RRSBA                : 1;
+    ///
+    /// [Bit 20] BHI_NO: A value of 1 indicates BHI_NO branch prediction behavior, regardless of
+    /// the value of IA32_SPEC_CTRL[BHI_DIS_S] MSR bit.
+    ///
+    UINT32    BHI_NO               : 1;
+    //
+    /// [Bit 21] XAPIC_DISABLE_STATUS: Enumerates that the IA32_XAPIC_DISABLE_STATUS MSR exists,
+    /// and that bit 0 specifies whether the legacy xAPIC is disabled and APIC state is locked to x2APIC.
+    ///
+    UINT32    XAPIC_DISABLE_STATUS : 1;
+    UINT32    Reserved3            : 1;
+    ///
+    /// [Bit 23] OVERCLOCKING_STATUS: If set, the IA32_OVERCLOCKING_STATUS MSR exists.
+    ///
+    UINT32    OVERCLOCKING_STATUS  : 1;
+    ///
+    /// [Bit 24] PBRSB_NO: If 1, the processor is not affected by issues related to Post-Barrier
+    /// Return Stack Buffer Predictions.
+    ///
+    UINT32    PBRSB_NO             : 1;
+    UINT32    Reserved4            : 7;
+    UINT32    Reserved5            : 32;
+  } Bits;
+  ///
+  /// All bit fields as a 32-bit value
+  ///
+  UINT32    Uint32;
+  ///
+  /// All bit fields as a 64-bit value
+  ///
+  UINT64    Uint64;
+} IA32_ARCH_CAPABILITIES_REGISTER;
+
 /**
   SYSENTER_CS_MSR (R/W). Introduced at Display Family / Display Model 06_01H.
 
@@ -1035,6 +1178,61 @@ typedef union {
   UINT64    Uint64;
 } MSR_IA32_PERFEVTSEL_REGISTER;
 
+/**
+  Overclocking Status (R/O) IA32_ARCH_CAPABILITIES[bit 23] enumerates support for this MSR.
+
+  @param  ECX  IA32_OVERCLOCKING_STATUS (0x00000195)
+  @param  EAX  Lower 32-bits of MSR value.
+               Described by the type IA32_OVERCLOCKING_STATUS_REGISTER.
+  @param  EDX  Upper 32-bits of MSR value.
+               Described by the type IA32_OVERCLOCKING_STATUS_REGISTER.
+
+  <b>Example usage</b>
+  @code
+  IA32_OVERCLOCKING_STATUS_REGISTER  Msr;
+
+  Msr.Uint64 = AsmReadMsr64 (IA32_OVERCLOCKING_STATUS);
+  @endcode
+  @note IA32_OVERCLOCKING_STATUS is defined as IA32_OVERCLOCKING_STATUS in SDM.
+**/
+#define IA32_OVERCLOCKING_STATUS  0x00000195
+
+/**
+  MSR information returned for MSR index #IA32_ARCH_CAPABILITIES
+**/
+typedef union {
+  ///
+  /// Individual bit fields
+  ///
+  struct {
+    ///
+    /// [Bits 0]  Indicates if specific forms of overclocking have been enabled on this boot or reset
+    /// cycle: 0 indicates no, 1 indicates yes.
+    ///
+    UINT32    OverclockingUtilized     : 1;
+    ///
+    /// [Bits 1]  Indicates if the “Dynamic OC Undervolt Protection” security feature is active:
+    /// 0 indicates disabled, 1 indicates enabled.
+    ///
+    UINT32    UndervoltProtection      : 1;
+    ///
+    /// [Bits 2]  Indicates that overclocking capabilities have been unlocked by BIOS,
+    /// with or without overclocking: 0 indicates Not Secured, 1 indicates Secure.
+    ///
+    UINT32    OverclockingSecureStatus : 1;
+    UINT32    Reserved1                : 29;
+    UINT32    Reserved2                : 32;
+  } Bits;
+  ///
+  /// All bit fields as a 32-bit value
+  ///
+  UINT32    Uint32;
+  ///
+  /// All bit fields as a 64-bit value
+  ///
+  UINT64    Uint64;
+} IA32_OVERCLOCKING_STATUS_REGISTER;
+
 /**
   Current performance state(P-State) operating point (RO). Introduced at
   Display Family / Display Model 0F_03H.
-- 
2.34.1.windows.1