>From 0b327f122ccfbbb28f2c22834916f12d03fc2a06 Mon Sep 17 00:00:00 2001 From: H. Peter Anvin Date: Sun, 6 Feb 2011 19:58:38 -0800 Subject: [PATCH] x86, nx: Mark the ACPI resume trampoline code as +x We reserve lowmem for the things that need it, like the ACPI wakeup code, way early to guarantee availability. This happens before we set up the proper pagetables, so set_memory_x() has no effect. Until we have a better solution, use an initcall to mark the wakeup code executable. Originally-by: Matthieu Castet Signed-off-by: H. Peter Anvin LKML-Reference: <1296924395.4d4d7eeb6f1fe@imp.free.fr> --- arch/x86/kernel/acpi/sleep.c | 13 ++++++++++--- 1 files changed, 10 insertions(+), 3 deletions(-) diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c index 4d9ebba..68d1537 100644 --- a/arch/x86/kernel/acpi/sleep.c +++ b/arch/x86/kernel/acpi/sleep.c @@ -12,10 +12,8 @@ #include #include #include - -#ifdef CONFIG_X86_32 #include -#endif +#include #include "realmode/wakeup.h" #include "sleep.h" @@ -149,6 +147,15 @@ void __init acpi_reserve_wakeup_memory(void) memblock_x86_reserve_range(mem, mem + WAKEUP_SIZE, "ACPI WAKEUP"); } +int __init acpi_configure_wakeup_memory(void) +{ + if (acpi_realmode) + set_memory_x(acpi_realmode, WAKEUP_SIZE >> PAGE_SHIFT); + + return 0; +} +arch_initcall(acpi_configure_wakeup_memory); + static int __init acpi_sleep_setup(char *str) { -- 1.7.4