标签：top manual MSR page msr Linux CPU

MSR(4)                  Linux Programmer's Manual                 MSR(4)

NAME         top

       msr - x86 CPU MSR access device

DESCRIPTION         top

       /dev/cpu/CPUNUM/msr provides an interface to read and write the
       model-specific registers (MSRs) of an x86 CPU.  CPUNUM is the
       number of the CPU to access as listed in /proc/cpuinfo.

       The register access is done by opening the file and seeking to
       the MSR number as offset in the file, and then reading or writing
       in chunks of 8 bytes.  An I/O transfer of more than 8 bytes means
       multiple reads or writes of the same register.

       This file is protected so that it can be read and written only by
       the user root, or members of the group root.

NOTES         top

       The msr driver is not auto-loaded.  On modular kernels you might
       need to use the following command to load it explicitly before
       use:

           $ modprobe msr

SEE ALSO         top

       Intel Corporation Intel 64 and IA-32 Architectures Software
       Developer's Manual Volume 3B Appendix B, for an overview of the
       Intel CPU MSRs.

COLOPHON         top

       This page is part of release 5.12 of the Linux man-pages project.
       A description of the project, information about reporting bugs,
       and the latest version of this page, can be found at
       https://www.kernel.org/doc/man-pages/.

Linux                          2021-03-22                         MSR(4)

标签：top,manual,MSR,page,msr,Linux,CPU
来源： https://blog.csdn.net/Rong_Toa/article/details/118531103

本站声明： 1. iCode9 技术分享网（下文简称本站）提供的所有内容，仅供技术学习、探讨和分享；
2. 关于本站的所有留言、评论、转载及引用，纯属内容发起人的个人观点，与本站观点和立场无关；
3. 关于本站的所有言论和文字，纯属内容发起人的个人观点，与本站观点和立场无关；
4. 本站文章均是网友提供，不完全保证技术分享内容的完整性、准确性、时效性、风险性和版权归属；如您发现该文章侵犯了您的权益，可联系我们第一时间进行删除；
5. 本站为非盈利性的个人网站，所有内容不会用来进行牟利，也不会利用任何形式的广告来间接获益，纯粹是为了广大技术爱好者提供技术内容和技术思想的分享性交流网站。