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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-16 10:10:02 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-16 10:10:02 -0700 |
| commit | e7fd3b4669f5b835c8afce28425d9f698a558115 (patch) | |
| tree | d7f254a1d75807cc8b50f416ba3bd13010913ddc /arch/x86/kernel/trampoline_32.S | |
| parent | fc82e1d59a24cbac01c49d4eb3b28d6abc26a5f4 (diff) | |
| parent | 2ae9d293b14d17f35eff624272cfecac7979a2ee (diff) | |
Merge branch 'x86-trampoline-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-trampoline-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: Fix binutils-2.21 symbol related build failures
x86-64, trampoline: Remove unused variable
x86, reboot: Fix the use of passed arguments in 32-bit BIOS reboot
x86, reboot: Move the real-mode reboot code to an assembly file
x86: Make the GDT_ENTRY() macro in <asm/segment.h> safe for assembly
x86, trampoline: Use the unified trampoline setup for ACPI wakeup
x86, trampoline: Common infrastructure for low memory trampolines
Fix up trivial conflicts in arch/x86/kernel/Makefile
Diffstat (limited to 'arch/x86/kernel/trampoline_32.S')
| -rw-r--r-- | arch/x86/kernel/trampoline_32.S | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/arch/x86/kernel/trampoline_32.S b/arch/x86/kernel/trampoline_32.S index 8508237e8e43..451c0a7ef7fd 100644 --- a/arch/x86/kernel/trampoline_32.S +++ b/arch/x86/kernel/trampoline_32.S @@ -32,9 +32,11 @@ #include <asm/segment.h> #include <asm/page_types.h> -/* We can free up trampoline after bootup if cpu hotplug is not supported. */ -__CPUINITRODATA -.code16 +#ifdef CONFIG_SMP + + .section ".x86_trampoline","a" + .balign PAGE_SIZE + .code16 ENTRY(trampoline_data) r_base = . @@ -44,7 +46,7 @@ r_base = . cli # We should be safe anyway - movl $0xA5A5A5A5, trampoline_data - r_base + movl $0xA5A5A5A5, trampoline_status - r_base # write marker for master knows we're running /* GDT tables in non default location kernel can be beyond 16MB and @@ -72,5 +74,10 @@ boot_idt_descr: .word 0 # idt limit = 0 .long 0 # idt base = 0L +ENTRY(trampoline_status) + .long 0 + .globl trampoline_end trampoline_end: + +#endif /* CONFIG_SMP */ |