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| author | Rafael J. Wysocki <rjw@sisk.pl> | 2008-12-08 00:50:22 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-12-08 13:49:45 +0100 |
| commit | 3e1e9002aa8b32bd4c95ac6c8fad376b7a8127fb (patch) | |
| tree | f9cee272743423033e78d283955aa7c493691a2d /arch/x86/kernel/head32.c | |
| parent | 218d11a8b071b23b76c484fd5f72a4fe3306801e (diff) | |
| download | op-kernel-dev-3e1e9002aa8b32bd4c95ac6c8fad376b7a8127fb.zip op-kernel-dev-3e1e9002aa8b32bd4c95ac6c8fad376b7a8127fb.tar.gz | |
x86: change static allocation of trampoline area
Impact: fix trampoline sizing bug, save space
While debugging a suspend-to-RAM related issue it occured to me that
if the trampoline code had grown past 4 KB, we would have been
allocating too little memory for it, since the 4 KB size of the
trampoline is hardcoded into arch/x86/kernel/e820.c . Change that
by making the kernel compute the trampoline size and allocate as much
memory as necessary.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/head32.c')
| -rw-r--r-- | arch/x86/kernel/head32.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kernel/head32.c b/arch/x86/kernel/head32.c index fa1d25d..ac108d1 100644 --- a/arch/x86/kernel/head32.c +++ b/arch/x86/kernel/head32.c @@ -12,9 +12,12 @@ #include <asm/sections.h> #include <asm/e820.h> #include <asm/bios_ebda.h> +#include <asm/trampoline.h> void __init i386_start_kernel(void) { + reserve_trampoline_memory(); + reserve_early(__pa_symbol(&_text), __pa_symbol(&_end), "TEXT DATA BSS"); #ifdef CONFIG_BLK_DEV_INITRD |
