From 5f2b285bf8d645bf0c7a46dd5434d83824f23278 Mon Sep 17 00:00:00 2001 From: Vladimir Serbinenko Date: Fri, 22 Jan 2016 13:50:53 +0100 Subject: [PATCH] Document cpuid -p --- docs/grub.texi | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/docs/grub.texi b/docs/grub.texi index f9173cc27..0afdd8ccd 100644 --- a/docs/grub.texi +++ b/docs/grub.texi @@ -4073,12 +4073,15 @@ after @command{configfile} returns. @node cpuid @subsection cpuid -@deffn Command cpuid [-l] +@deffn Command cpuid [-l] [-p] Check for CPU features. This command is only available on x86 systems. With the @option{-l} option, return true if the CPU supports long mode (64-bit). +With the @option{-p} option, return true if the CPU supports Physical +Address Extension (PAE). + If invoked without options, this command currently behaves as if it had been invoked with @option{-l}. This may change in the future. @end deffn