Rdmsrl_safe_on_cpu
Web15 hours ago · Every time my computer turns off, a tab goes to sleep, or I open window, it replaces that tab, sometimes ruining hours of work. I've tried Restarting to browser, restarting my computer, and messing ... (Disclaimer: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site … Webint wrmsrl_safe_on_cpu(unsigned int cpu, u32 msr_no, u64 q); int rdmsr_safe_regs_on_cpu(unsigned int cpu, u32 regs[8]); int …
Rdmsrl_safe_on_cpu
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Webrdmsr is a tool used for reading a CPU's machine specific registers (MSR). Note: if you're running a Debian kernel, be sure that the msr.ko kernel module is loaded. 'modprobe msr' …
WebMar 1, 2024 · rdmsrl_safe is called 4 times in the kernel module to read the specified performance counters. At this point, the user application has not called tsc_now yet. ioctl is about return to use mode and so exit_to_usermode_loop is called. Your kprobe handler gets executed. It reads the same performance counters and the values obtained will be larger ... Webnative_ {rdmsr,wrmsr}_safe_regs are two new interfaces which allow presetting of a subset of eight x86 GPRs before executing the rd/wrmsr instructions. This is needed at least on AMD K8 for accessing an erratum workaround MSR. Originally based on an idea by H. Peter Anvin. Signed-off-by: Borislav Petkov ---
WebApr 21, 2024 · Srinivas, should that uncore frequency thing even be exposed to guests? Does it make sense there? http://bricktou.com/arch/x86/include/asm/msrrdmsrl_safe_on_cpu_en.html
WebLKML Archive on lore.kernel.org help / color / mirror / Atom feed * [PATCH] perf/x86/intel: Use rdmsrl_safe when initializing RAPL PMU. @ 2014-03-13 19:36 Venkatesh Srinivas …
WebHere is a simple scenario to reproduce the issue: 1. Boot up the system 2. Get MSR 0x19a, it should be 0 3. Put the system into sleep, then wake it up 4. Get MSR 0x19a, it shows 0x10, while it should be 0 Although some BIOSen want to change the CPU Duty Cycle during S3, in our case we don't want the BIOS to do any modification. biorhythm and luckWebMar 1, 2024 · rdmsrl_safe is called 4 times in the kernel module to read the specified performance counters. At this point, the user application has not called tsc_now yet. ioctl … dairy free foods list for kidsWebMar 17, 2016 · entire platform instead of just CPU package. This is useful for thermal. and power control when source of power/thermal is not just CPU/GPU. This change adds a new platform domain (AKA PSys) to the current. power capping Intel RAPL driver. PSys also supports PL1 (long term) and PL2 (short term) control like. dairy free foods for ibsWeb> The rdmsrl_safe() function returns 0 on success. > The current code was failing to detect the RAPL PMU > on real hardware (missing /sys/devices/power) because > the return value of rdmsrl_safe() was misinterpreted. > > Signed-off-by: Stephane Eranian Acked-by: Borislav Petkov -- Regards/Gruss, Boris. … dairy free foodWebJul 4, 2024 · From: Josh Poimboeuf <> Subject [RFC PATCH] x86: Remove X86_FEATURE_MFENCE_RDTSC: Date: Thu, 4 Jul 2024 10:46:37 -0500 dairy free for babyWebOn Wed, May 30, 2012 at 03:10:02PM +0200, Andre Przywara wrote: > Because we are behind a family check before tweaking the topology > bit, we can use the standard rd/wrmsr variants for the CPUID feature > register. > This fixes a crash when using the kernel as a Xen Dom0 on affected > Trinity systems. The wrmsrl_amd_safe is not properly paravirtualized … dairy free foods groceryWebAug 4, 2015 · perf/x86: Add an MSR PMU driver. This patch adds an MSR PMU to support free running MSR counters. Such. as time and freq related counters includes TSC, IA32_APERF, IA32_MPERF. and IA32_PPERF, but also SMI_COUNT. The events are exposed in sysfs for use by perf stat and other tools. biorhythm calculator download