Messages in this thread Patch in this message | | | Date | Sun, 5 Oct 2008 19:22:30 +0200 | Subject | [PATCH -tip] kmemcheck: use set_memory_4k() on x86_64 only | From | Vegard Nossum <> |
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From 5bce9b1674e84ff36ba8f5a390b2ad30cd42b29a Mon Sep 17 00:00:00 2001 From: Vegard Nossum <vegard.nossum@gmail.com> Date: Wed, 1 Oct 2008 18:36:42 +0200 Subject: [PATCH] kmemcheck: use set_memory_4k() on x86_64 only
x86_32 already disables PSE capabilities and is fine. We need this to avoid the BUG in cache-flushing SMP call.
Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com> --- arch/x86/mm/kmemcheck/kmemcheck.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/arch/x86/mm/kmemcheck/kmemcheck.c b/arch/x86/mm/kmemcheck/kmemcheck.c index 5a08a70..d649aa7 100644 --- a/arch/x86/mm/kmemcheck/kmemcheck.c +++ b/arch/x86/mm/kmemcheck/kmemcheck.c @@ -295,7 +295,9 @@ void kmemcheck_hide_pages(struct page *p, unsigned int n) { unsigned int i; +#ifdef CONFIG_X86_64 set_memory_4k((unsigned long) page_address(p), n); +#endif for (i = 0; i < n; ++i) { unsigned long address; -- 1.5.5.1
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