Rdmsrl_safe_on_cpu

Author: tlrf

August undefined, 2024

WebThese domains include package, DRAM controller, CPU core (Power Plane 0), graphics uncore (power plane 1), etc. The purpose of this driver is to expose RAPL for userspace consumption. Overall, RAPL fits in the new powercap class driver in that platform level power capping controls are exposed via this generic interface. Zhang, Rui's initial ... WebOn Tue, Mar 27, 2024 at 08:22:33PM -0700, Eric Dumazet wrote: > When changing rdmsr_safe_on_cpu() to schedule, I missed that > __rdmsr_safe_on_cpu() was also used …

215870 – unchecked MSR access error: RDMSR from 0x620 at rIP ...

WebAug 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. 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 … inc international concepts pull on pants

rdmsr (Read MSR) - Windows drivers Microsoft Learn

Web"CPU Core May Machine Check When System Software Changes Page Tables Dynamically" - worked around by setting bit 47. 15h Errata 674 "Processor May Cache Prefetched Data from Remapped Memory Region" - worked around by setting bit 13. C001_1023: K8 Errata 69 "Multiprocessor Coherency Problem with Hardware Prefetch Mechanism" - worked around … 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 ... WebMar 23, 2024 · in deep sleep state or blocking hard IRQ in a a long section, then waiting for the answer can consume hundreds of usec. Converts rdmsr_safe_on_cpu () to use a … inc international concepts shoulder bags

[PATCH v2 1/2] x86, msr: add rdmsr_safe_on_cpu_resched() and …

rdmsr (Read MSR) - Windows drivers Microsoft Learn

WebJan 31, 2024 · Securing RDP. Take immediate steps to lock down your systems. First, always keep your RDP servers and clients up to date; never connect to an RDP server that … WebDec 14, 2024 · The rdmsr command reads a Model-Specific Register (MSR) value from the specified address. dbgcmd rdmsr Address Parameters Address Specifies the address of … inc international concepts mens sweaterWebLinux debugging, tracing, profiling & perf. analysis. Check our new training course. with Creative Commons CC-BY-SA inc international concepts shorts men\u0027s

"WebOn Fri, Jun 01, 2012 at 04:52:36PM +0200, Borislav Petkov wrote: > From: Borislav Petkov > There's no real reason why, when showing the MSRs on a CPU at boottime, > we should be using the AMD-specific variant. Simply use the generic safe > one which handles #GPs just fine. Acked-by: Konrad Rzeszutek Wilk … " - Rdmsrl_safe_on_cpu

Rdmsrl_safe_on_cpu

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Web> 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. … 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 …

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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 2014-03-14 8:44 ` Peter Zijlstra ` (2 more replies) 0 siblings, 3 replies; 18+ messages in thread From: Venkatesh Srinivas @ 2014-03-13 19:36 UTC (permalink / raw) To: linux-kernel, … Webx86/msr: Make rdmsrl_safe_on_cpu() scheduling safe as well When changing rdmsr_safe_on_cpu() to schedule, it was missed that __rdmsr_safe_on_cpu() was also …

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 --- WebJun 2, 2010 · rdmsrl_safe identifier - Linux source code (v6.2.10) - Bootlin. Elixir Cross Referencer - Explore source code in your browser - Particularly useful for the Linux kernel …

WebJul 4, 2024 · From: Josh Poimboeuf <> Subject [RFC PATCH] x86: Remove X86_FEATURE_MFENCE_RDTSC: Date: Thu, 4 Jul 2024 10:46:37 -0500 WebIt is to replace the legacy ACPI P-States control, * allows a flexible, low-latency interface for the Linux kernel to directly. * communicate the performance hints to hardware. *. * AMD P-State is supported on recent AMD Zen base CPU series include some of. * Zen2 and Zen3 processors. _CPC needs to be present in the ACPI tables of AMD.

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WebThis may happen when Linux is running under KVM and we are passing-through host F/M/S data, for example. Use rdmsrl_safe to first access the RAPL_POWER_UNIT MSR; if this fails, do not attempt to use this PMU. in bloom at orlando flowerWebThe steps to download mp3juice songs are as follows: Just enter the song you want to download. Click the search button. Select the song in the search results from the list. Can be filtered by online play. Click to download mp3. Continue … in blood work what is alt/sgptWebrdmsrl_safe_on_cpu Function report Linux Kernel v5.5.9 Brick Technologies Co., Ltd Annotation kernel can get tool activity Download SCCT Chinese … inc international concepts skirt size chartWebIn FIFA 14 you will enjoy international foot ball. and you can also play domestic games. The most interesting feature of this game is that. You can also enjoy many different kinds of popular leagues like English Premier League and La … inc international concepts skinny pantsWebA tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. inc international concepts men shirtsWebOn 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 … inc international concepts skirtsWebMay 10, 2024 · Split lock is a memory bus lock supported by the CPU to support atomic memory accesses across a cache line. Some processors like ARM and RISC-V do not allow unaligned memory accesses and do not generate atomic accesses across cache lines, so split lock is not generated, while X86 supports it. inc international concepts riverton crossbody