From ea4e3bef4c94d5b5d8e790f37b48b7641172bcf5 Mon Sep 17 00:00:00 2001 From: Kyung Min Park Date: Mon, 31 Aug 2020 11:35:00 -0700 Subject: Documentation/x86: Add documentation for /proc/cpuinfo feature flags /proc/cpuinfo shows features which the kernel supports. Some of these flags are derived from CPUID, and others are derived from other sources, including some that are entirely software-based. Currently, there is not any documentation in the kernel about how /proc/cpuinfo flags are generated and what it means when they are missing. Add documentation for /proc/cpuinfo feature flags enumeration. Document how and when x86 feature flags are used. Also discuss what their presence or absence mean for the kernel and users. Suggested-by: Dave Hansen Co-developed-by: Ricardo Neri Signed-off-by: Ricardo Neri Signed-off-by: Kyung Min Park Signed-off-by: Borislav Petkov Reviewed-by: Tony Luck Link: https://lkml.kernel.org/r/20200831183500.15481-1-kyung.min.park@intel.com --- Documentation/x86/index.rst | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation/x86/index.rst') diff --git a/Documentation/x86/index.rst b/Documentation/x86/index.rst index 265d9e9a093b..d5adb0ab8668 100644 --- a/Documentation/x86/index.rst +++ b/Documentation/x86/index.rst @@ -9,6 +9,7 @@ x86-specific Documentation :numbered: boot + cpuinfo topology exception-tables kernel-stacks -- cgit v1.2.3