From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 7540621E79018 for ; Thu, 17 Aug 2017 20:26:14 -0700 (PDT) Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga105.fm.intel.com with ESMTP; 17 Aug 2017 20:28:42 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.41,391,1498546800"; d="scan'208";a="120284143" Received: from ydong10-win10.ccr.corp.intel.com ([10.239.158.51]) by orsmga004.jf.intel.com with ESMTP; 17 Aug 2017 20:28:41 -0700 From: Eric Dong To: edk2-devel@lists.01.org Cc: Michael Kinney , Ruiyu Ni Date: Fri, 18 Aug 2017 11:28:37 +0800 Message-Id: <1503026917-13296-3-git-send-email-eric.dong@intel.com> X-Mailer: git-send-email 2.7.0.windows.1 In-Reply-To: <1503026917-13296-1-git-send-email-eric.dong@intel.com> References: <1503026917-13296-1-git-send-email-eric.dong@intel.com> Subject: [Patch v2 2/2] UefiCpuPkg/CpuCommonFeaturesLib: Use MSR data structure when change MSR value. X-BeenThere: edk2-devel@lists.01.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: EDK II Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 18 Aug 2017 03:26:14 -0000 When update MSR values, current code use BITxx to modify it. Enhance the code to use corresponding MSR's data structures to make it more user friendly. Cc: Michael Kinney Cc: Ruiyu Ni Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Eric Dong --- .../Library/CpuCommonFeaturesLib/ProcTrace.c | 70 +++++++++++++--------- 1 file changed, 42 insertions(+), 28 deletions(-) diff --git a/UefiCpuPkg/Library/CpuCommonFeaturesLib/ProcTrace.c b/UefiCpuPkg/Library/CpuCommonFeaturesLib/ProcTrace.c index 40e6321..a90dd4e 100644 --- a/UefiCpuPkg/Library/CpuCommonFeaturesLib/ProcTrace.c +++ b/UefiCpuPkg/Library/CpuCommonFeaturesLib/ProcTrace.c @@ -70,7 +70,7 @@ typedef struct { } PROC_TRACE_DATA; typedef struct { - UINT64 TopaEntry[MAX_TOPA_ENTRY_COUNT]; + RTIT_TOPA_TABLE_ENTRY TopaEntry[MAX_TOPA_ENTRY_COUNT]; } PROC_TRACE_TOPA_TABLE; /** @@ -186,7 +186,6 @@ ProcTraceInitialize ( IN BOOLEAN State ) { - UINT64 MsrValue; UINT32 MemRegionSize; UINTN Pages; UINTN Alignment; @@ -199,6 +198,11 @@ ProcTraceInitialize ( PROC_TRACE_TOPA_TABLE *TopaTable; PROC_TRACE_DATA *ProcTraceData; BOOLEAN FirstIn; + MSR_IA32_RTIT_CTL_REGISTER CtrlReg; + MSR_IA32_RTIT_STATUS_REGISTER StatusReg; + MSR_IA32_RTIT_OUTPUT_BASE_REGISTER OutputBaseReg; + MSR_IA32_RTIT_OUTPUT_MASK_PTRS_REGISTER OutputMaskPtrsReg; + RTIT_TOPA_TABLE_ENTRY *TopaEntryPtr; ProcTraceData = (PROC_TRACE_DATA *) ConfigData; @@ -221,29 +225,28 @@ ProcTraceInitialize ( // // Clear MSR_IA32_RTIT_CTL[0] and IA32_RTIT_STS only if MSR_IA32_RTIT_CTL[0]==1b // - MsrValue = AsmReadMsr64 (MSR_IA32_RTIT_CTL); - if ((MsrValue & BIT0) != 0) { + CtrlReg.Uint64 = AsmReadMsr64 (MSR_IA32_RTIT_CTL); + if (CtrlReg.Bits.TraceEn != 0) { /// /// Clear bit 0 in MSR IA32_RTIT_CTL (570) /// - MsrValue &= (UINT64) ~BIT0; + CtrlReg.Bits.TraceEn = 0; CPU_REGISTER_TABLE_WRITE64 ( ProcessorNumber, Msr, MSR_IA32_RTIT_CTL, - MsrValue + CtrlReg.Uint64 ); /// /// Clear MSR IA32_RTIT_STS (571h) to all zeros /// - MsrValue = AsmReadMsr64 (MSR_IA32_RTIT_STATUS); - MsrValue &= 0x0; + StatusReg.Uint64 = 0x0; CPU_REGISTER_TABLE_WRITE64 ( ProcessorNumber, Msr, MSR_IA32_RTIT_STATUS, - MsrValue + StatusReg.Uint64 ); } @@ -309,35 +312,35 @@ ProcTraceInitialize ( // // Clear MSR IA32_RTIT_CTL (0x570) ToPA (Bit 8) // - MsrValue = AsmReadMsr64 (MSR_IA32_RTIT_CTL); - MsrValue &= (UINT64) ~BIT8; + CtrlReg.Uint64 = AsmReadMsr64 (MSR_IA32_RTIT_CTL); + CtrlReg.Bits.ToPA = 0; CPU_REGISTER_TABLE_WRITE64 ( ProcessorNumber, Msr, MSR_IA32_RTIT_CTL, - MsrValue + CtrlReg.Uint64 ); // // Program MSR IA32_RTIT_OUTPUT_BASE (0x560) bits[47:12] with the allocated Memory Region // - MsrValue = (UINT64) MemRegionBaseAddr; + OutputBaseReg.Uint64 = (UINT64) MemRegionBaseAddr; CPU_REGISTER_TABLE_WRITE64 ( ProcessorNumber, Msr, MSR_IA32_RTIT_OUTPUT_BASE, - MsrValue + OutputBaseReg.Uint64 ); // // Program the Mask bits for the Memory Region to MSR IA32_RTIT_OUTPUT_MASK_PTRS (561h) // - MsrValue = (UINT64) MemRegionSize - 1; + OutputMaskPtrsReg.Uint64 = (UINT64) MemRegionSize - 1; CPU_REGISTER_TABLE_WRITE64 ( ProcessorNumber, Msr, MSR_IA32_RTIT_OUTPUT_MASK_PTRS, - MsrValue + OutputMaskPtrsReg.Uint64 ); } @@ -408,55 +411,66 @@ ProcTraceInitialize ( } TopaTable = (PROC_TRACE_TOPA_TABLE *) TopaTableBaseAddr; - TopaTable->TopaEntry[0] = (UINT64) (MemRegionBaseAddr | ((ProcTraceData->ProcTraceMemSize) << 6)) & ~BIT0; - TopaTable->TopaEntry[1] = (UINT64) TopaTableBaseAddr | BIT0; + TopaEntryPtr = &TopaTable->TopaEntry[0]; + TopaEntryPtr->Uint64 = (UINT64) MemRegionBaseAddr; + TopaEntryPtr->Bits.Size = ProcTraceData->ProcTraceMemSize; + TopaEntryPtr->Bits.END = 0; + + TopaEntryPtr = &TopaTable->TopaEntry[1]; + TopaEntryPtr->Uint64 = (UINT64) TopaTableBaseAddr; + TopaEntryPtr->Bits.END = 1; // // Program the MSR IA32_RTIT_OUTPUT_BASE (0x560) bits[47:12] with ToPA base // - MsrValue = (UINT64) TopaTableBaseAddr; + OutputBaseReg.Uint64 = (UINT64) TopaTableBaseAddr; CPU_REGISTER_TABLE_WRITE64 ( ProcessorNumber, Msr, MSR_IA32_RTIT_OUTPUT_BASE, - MsrValue + OutputBaseReg.Uint64 ); // // Set the MSR IA32_RTIT_OUTPUT_MASK (0x561) bits[63:7] to 0 // + OutputMaskPtrsReg.Uint64 = (UINT64) 0x7F; CPU_REGISTER_TABLE_WRITE64 ( ProcessorNumber, Msr, MSR_IA32_RTIT_OUTPUT_MASK_PTRS, - 0x7F + OutputMaskPtrsReg.Uint64 ); // // Enable ToPA output scheme by enabling MSR IA32_RTIT_CTL (0x570) ToPA (Bit 8) // - MsrValue = AsmReadMsr64 (MSR_IA32_RTIT_CTL); - MsrValue |= BIT8; + CtrlReg.Uint64 = AsmReadMsr64 (MSR_IA32_RTIT_CTL); + CtrlReg.Bits.ToPA = 1; CPU_REGISTER_TABLE_WRITE64 ( ProcessorNumber, Msr, MSR_IA32_RTIT_CTL, - MsrValue + CtrlReg.Uint64 ); } /// /// Enable the Processor Trace feature from MSR IA32_RTIT_CTL (570h) /// - MsrValue = AsmReadMsr64 (MSR_IA32_RTIT_CTL); - MsrValue |= (UINT64) BIT0 + BIT2 + BIT3 + BIT13; + CtrlReg.Uint64 = AsmReadMsr64 (MSR_IA32_RTIT_CTL); + CtrlReg.Bits.OS = 1; + CtrlReg.Bits.User = 1; + CtrlReg.Bits.BranchEn = 1; if (!State) { - MsrValue &= (UINT64) ~BIT0; + CtrlReg.Bits.TraceEn = 0; + } else { + CtrlReg.Bits.TraceEn = 1; } CPU_REGISTER_TABLE_WRITE64 ( ProcessorNumber, Msr, MSR_IA32_RTIT_CTL, - MsrValue + CtrlReg.Uint64 ); return RETURN_SUCCESS; -- 2.7.0.windows.1