cpu msr spec
關於1A0（IA32_MISC_ENABLE）以及199（IA32_PERF_CTL）,198（IA32_PERF_STATUS），自己project的CPU一定有Spec可以看到的，如果沒有就向Intel ... 第二點，增強的SpeedStep可以直接通過對處理器的MSR寄存器編程來實現頻率，大大減少了頻率切換時間，而原來的SpeedStep依賴於對Chipset的IO端口 ...,CPU 工作頻率=外頻(BCLK)* 倍頻(MSR調整) FSB 頻寬= CPU Spec說由BSEL[2:0] "同步決定"，但是看Clockgen電路有分成，BCLK與HostClk(兩者應該輸出同樣頻率) 所以應該是北橋拿HostClk當參考，每1/4 Clk提取一次Data，所以應該是HostClk * 4 以前FSB頻寬=FSB工作頻率，所以有人把CPU工作頻率計算方式看作" FSB頻率* ... , MSR : EDX(High Dword) + EAX(Low Dword). 以讀取CPU倍頻(IA32_PERF_STS -- Performance Status Register)為例，下列為debug32去讀取IA32_PERF_STS的方式: Mov ECX,0198hß198h為IA32_PERF_STS MSR Address. RDMSR. ;. EAX就會秀出XXXXX613hß根據INTEL SPEC 6就是現在倍頻為6.,A model-specific register (MSR) is any of various control registers in the x86 instruction set used for debugging, program execution tracing, computer performance monitoring, and toggling certain CPU features. Contents. [hide]. 1 History; 2 Using MSRs; 3 ,Model specifies one instance of a processor family. See CPUID Fn0000_0001_EAX. • MSR. Model specific register. The CPU includes several MSRs for general configuration and control. • NB. Northbridge. The transaction routing block of the processor. • Proces, [ A~F Segment ] 早期16位元所定義的記憶體(UMA)內, 每個segment 為64KB, 共有6個(A_0000h, B_000h,...,F_000h) total 384KB [ MTRR ] MTRR (Memory type range registers) 是CPU內的MSR,用來告訴CPU要如何最佳的存取各個記憶體區段，也就是說CPU要以哪種快取模式來進行存取。 [ Snoop & non-snoop ],One problem that I have encountered in using MSR IA32_PERF_STATUS to look at the frequency is that you cannot read this counter while in the user-space context. MSRs can only be read by the kernel, so you have to call the MSR device driver, which may have,Interface Specification. 7. OSPM Capabilities Interfaces. Table 1. _PDC Capabilities DWORD 2 Bit Definitions. Bit. Definition. 0. If set, OSPM is capable of direct access to Performance State MSR's. 1. If set, OSPM supports the C1 “I/O then Halt” FFH ,Contact your Intel representative to obtain the latest Intel product specifications and roadmaps ... Centralization of the control mechanism and software interface in the processor by using model-specific ... IA32_MPERF MSR (E7H) increments in proportion ,Specification Update. Supporting 7th Generation Intel® Core™ Processor Families based on Y/U/H/S-Processor Line, Y/U With iHDCP2.2-. Processor Line , Intel® ... Supporting 8th Generation Intel® Core™ Processor Family for. U Quad ...... Bits 53:50 of the I
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 cpu msr spec 相關參考資料
初心者之家: Speed Step
關於1A0（IA32_MISC_ENABLE）以及199（IA32_PERF_CTL）,198（IA32_PERF_STATUS），自己project的CPU一定有Spec可以看到的，如果沒有就向Intel ... 第二點，增強的SpeedStep可以直接通過對處理器的MSR寄存器編程來實現頻率，大大減少了頻率切換時間，而原來的SpeedStep依賴於對Chipset的IO端口 ... http://boy-asmc.blogspot.com 小華的部落格: [我所知道的BIOS]->[Jumpless] 4
CPU 工作頻率=外頻(BCLK)* 倍頻(MSR調整) FSB 頻寬= CPU Spec說由BSEL[2:0] "同步決定"，但是看Clockgen電路有分成，BCLK與HostClk(兩者應該輸出同樣頻率) 所以應該是北橋拿HostClk當參考，每1/4 Clk提取一次Data，所以應該是HostClk * 4 以前FSB頻寬=FSB工作頻率，所以有人把CPU工作頻率計算方... http://biosengineer.blogspot.c CPU MSR 存取@ 勇ㄅㄟㄅㄟ胡言亂語堂:: 痞客邦PIXNET ::
MSR : EDX(High Dword) + EAX(Low Dword). 以讀取CPU倍頻(IA32_PERF_STS -- Performance Status Register)為例，下列為debug32去讀取IA32_PERF_STS的方式: Mov ECX,0198hß198h為IA32_PERF_STS MSR Address. RDMSR. ;. EAX就會秀出XXXXX613... http://cj6m3.pixnet.net Model-specific register - Wikipedia
A model-specific register (MSR) is any of various control registers in the x86 instruction set used for debugging, program execution tracing, computer performance monitoring, and toggling certain CPU ... https://en.wikipedia.org CPUID Specification
Model specifies one instance of a processor family. See CPUID Fn0000_0001_EAX. • MSR. Model specific register. The CPU includes several MSRs for general configuration and control. • NB. Northbridge. T... http://pdinda.org Martin's Coding Note: x86 spec Bios 常見術語
[ A~F Segment ] 早期16位元所定義的記憶體(UMA)內, 每個segment 為64KB, 共有6個(A_0000h, B_000h,...,F_000h) total 384KB [ MTRR ] MTRR (Memory type range registers) 是CPU內的MSR,用來告訴CPU要如何最佳的存取各個記憶體區段，也就是說CPU要以哪種快取模式來進行存取。 [... http://beyond-firmware.blogspo HowTo MSR for Turbo Ratios ? - Intel® Developer Zone
One problem that I have encountered in using MSR IA32_PERF_STATUS to look at the frequency is that you cannot read this counter while in the user-space context. MSRs can only be read by the kernel, so... https://software.intel.com Intel® Processor Vendor-Specific ACPI Interface Specification
Interface Specification. 7. OSPM Capabilities Interfaces. Table 1. _PDC Capabilities DWORD 2 Bit Definitions. Bit. Definition. 0. If set, OSPM is capable of direct access to Performance State MSR'... https://www.intel.com Intel® 64 and IA-32 Architectures Software Developer's Manual ...
Contact your Intel representative to obtain the latest Intel product specifications and roadmaps ... Centralization of the control mechanism and software interface in the processor by using model-spec... https://www.intel.com (U Quad-Core) Intel® Processor Families Specification Update
Specification Update. Supporting 7th Generation Intel® Core™ Processor Families based on Y/U/H/S-Processor Line, Y/U With iHDCP2.2-. Processor Line , Intel® ... Supporting 8th Generation Intel® Core™ ... https://www.intel.com |