From: Yinghai Lu <yinghai@kernel.org>
To: Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@zytor.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: [PATCH] x86: fix size for ex trampoline with 32bit
Date: Sun, 20 Dec 2009 23:27:59 -0800 [thread overview]
Message-ID: <4B2F237F.3040909@kernel.org> (raw)
fix for error that is introduced by
| x86: Use find_e820() instead of hard coded trampoline address
it should end with PAGE_SIZE + PAGE_SIZE
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
---
arch/x86/kernel/e820.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
Index: linux-2.6/arch/x86/kernel/e820.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/e820.c
+++ linux-2.6/arch/x86/kernel/e820.c
@@ -733,13 +733,13 @@ struct early_res {
};
static struct early_res early_res[MAX_EARLY_RES] __initdata = {
{ 0, PAGE_SIZE, "BIOS data page", 1 }, /* BIOS data page */
-#ifdef CONFIG_X86_32
+#if defined(CONFIG_X86_32) && defined(CONFIG_X86_TRAMPOLINE)
/*
* But first pinch a few for the stack/trampoline stuff
* FIXME: Don't need the extra page at 4K, but need to fix
* trampoline before removing it. (see the GDT stuff)
*/
- { PAGE_SIZE, PAGE_SIZE, "EX TRAMPOLINE", 1 },
+ { PAGE_SIZE, PAGE_SIZE + PAGE_SIZE, "EX TRAMPOLINE", 1 },
#endif
{}
next reply other threads:[~2009-12-21 7:29 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-21 7:27 Yinghai Lu [this message]
2009-12-21 17:16 ` [PATCH] x86: fix size for ex trampoline with 32bit H. Peter Anvin
2009-12-21 20:41 ` Yinghai Lu
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