Messages in this thread | | | From | "Bae, Chang Seok" <> | Subject | Re: [PATCH v4 22/22] x86/fpu/xstate: Introduce boot-parameters to control state component support | Date | Sun, 21 Feb 2021 20:10:42 +0000 |
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On Feb 21, 2021, at 11:30, Randy Dunlap <rdunlap@infradead.org> wrote: > Can we tell people (in this Doc file) where to look up the values that can be > used in xstate.enable and xstate.disable?
Perhaps add something like this with the change below: “See comment before function fpu__init_parse_early_param() in arch/x86/kernel/fpu/init.c."
/* * The kernel parameter "xstate.enable='mask'" and "xstate.disable='mask'" have a * mask value in a subset of XFEATURE_MASK_CONFIGURABLE. * * The longest parameter is 22 octal number characters with '0' prefix and an extra * '\0' for termination. */ #define MAX_XSTATE_MASK_CHARS 24
/** * fpu__init_parse_early_param() - parse the xstate kernel parameters * * Parse them early because fpu__init_system() is executed before * parse_early_param(). */ static void __init fpu__init_parse_early_param(void)
Thanks, Chang
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