mirror of https://github.com/acidanthera/audk.git
49fb605709
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=1808 In current code, the values of TopaEntryPtr->Uint64 for TopaTable and the values of OutputBaseReg.Uint64 and OutputMaskPtrsReg.Uint64 to register table write for RTIT_OUTPUT_BASE and RTIT_OUTPUT_MASK_PTRS are not been initialized in whole. For example, the reserved bits in OutputBaseReg.Uint64 are random that will cause GP fault like below when SetProcessorRegister (in CpuFeaturesInitialize.c) sets register based on register table. !!!! X64 Exception Type - 0D(#GP - General Protection) CPU Apic ID - 00000000 !!!! ExceptionData - 0000000000000000 RIP -0000000064D69576, CS -0000000000000038, RFLAGS -0000000000010246 RAX -000000006B9F1001, RCX -0000000000000560, RDX -0000000000000000 RBX -0000000064EECA18, RSP -000000006CB82BA0, RBP -0000000000000008 RSI -0000000080000000, RDI -0000000000000011 R8 -000000006B9493D0, R9 -0000000000000010, R10 -00000000000000FF R11 -000000006CB82A50, R12 -0000000064D70F50, R13 -0000000066547050 R14 -0000000064E3E198, R15 -0000000000000000 DS -0000000000000030, ES -0000000000000030, FS -0000000000000030 GS -0000000000000030, SS -0000000000000030 CR0 -0000000080010013, CR2 -0000000000000000, CR3 -000000006C601000 CR4 -0000000000000628, CR8 -0000000000000000 DR0 -0000000000000000, DR1 -0000000000000000, DR2 -0000000000000000 DR3 -0000000000000000, DR6 -00000000FFFF0FF0, DR7 -0000000000000400 GDTR -000000006B8CCF18 0000000000000047, LDTR -0000000000000000 IDTR -000000006687E018 0000000000000FFF, TR -0000000000000000 FXSAVE_STATE -000000006CB82800 And current code gets MSR_IA32_RTIT_CTL, MSR_IA32_RTIT_OUTPUT_BASE and MSR_IA32_RTIT_OUTPUT_MASK_PTRS in ProcTraceInitialize() and uses their values for all processors. But ProcTraceInitialize() is only executed by BSP, that means the values just for BSP. For good practice, the code should get MSR_IA32_RTIT_CTL, MSR_IA32_RTIT_OUTPUT_BASE and MSR_IA32_RTIT_OUTPUT_MASK_PTRS in ProcTraceSupport (executed by all processors), and then use them in ProcTraceInitialize() for all processors. This can also resolve the issue that the values of OutputBaseReg.Uint64 and OutputMaskPtrsReg.Uint64 are not been initialized in whole. For TopaEntryPtr->Uint64, this patch updates code to initialize it in whole explicitly by TopaEntryPtr->Uint64 = 0 before updating its fields. At the same time, this patch also eliminates the ProcTraceSupported field in PROC_TRACE_PROCESSOR_DATA and the TopaMemArrayCount field in PROC_TRACE_DATA. Cc: Laszlo Ersek <lersek@redhat.com> Cc: Eric Dong <eric.dong@intel.com> Cc: Ruiyu Ni <ruiyu.ni@intel.com> Cc: Chandana Kumar <chandana.c.kumar@intel.com> Cc: Kevin Li <kevin.y.li@intel.com> Signed-off-by: Star Zeng <star.zeng@intel.com> Reviewed-by: Eric Dong <eric.dong@intel.com> |
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| .. | ||
| Application/Cpuid | ||
| CpuDxe | ||
| CpuFeatures | ||
| CpuIo2Dxe | ||
| CpuIo2Smm | ||
| CpuIoPei | ||
| CpuMpPei | ||
| CpuS3DataDxe | ||
| Include | ||
| Library | ||
| PiSmmCommunication | ||
| PiSmmCpuDxeSmm | ||
| ResetVector | ||
| SecCore | ||
| Universal/Acpi/S3Resume2Pei | ||
| UefiCpuPkg.dec | ||
| UefiCpuPkg.dsc | ||
| UefiCpuPkg.uni | ||
| UefiCpuPkgExtra.uni | ||