From 4b0f3b81eb33ef18283aa71440cccfede1753ae0 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Fri, 13 Nov 2009 15:28:17 -0800 Subject: x86, mm: Report state of NX protections during boot It is possible for x86_64 systems to lack the NX bit either due to the hardware lacking support or the BIOS having turned off the CPU capability, so NX status should be reported. Additionally, anyone booting NX-capable CPUs in 32bit mode without PAE will lack NX functionality, so this change provides feedback for that case as well. Signed-off-by: Kees Cook Signed-off-by: H. Peter Anvin LKML-Reference: <1258154897-6770-6-git-send-email-hpa@zytor.com> --- arch/x86/include/asm/proto.h | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/x86/include') diff --git a/arch/x86/include/asm/proto.h b/arch/x86/include/asm/proto.h index add7f18f17a7..450c56bcd4f8 100644 --- a/arch/x86/include/asm/proto.h +++ b/arch/x86/include/asm/proto.h @@ -17,6 +17,7 @@ extern void ia32_sysenter_target(void); extern void syscall32_cpu_init(void); extern void x86_configure_nx(void); +extern void x86_report_nx(void); extern int reboot_force; -- cgit v1.2.2