summaryrefslogtreecommitdiffstats
path: root/arch/x86/kernel/doublefault_32.c
diff options
context:
space:
mode:
authorJiri Slaby <jirislaby@gmail.com>2008-06-12 13:56:40 +0200
committerIngo Molnar <mingo@elte.hu>2008-06-19 13:31:42 +0200
commit59ea746337c69f6a5f1bc4d5e8544b3cbf12f801 (patch)
tree118c9c69eb8a2f6a22c62967ec36288153c87303 /arch/x86/kernel/doublefault_32.c
parent952f4a0a9b27e6dbd5d32e330b3f609ebfa0b061 (diff)
downloadlinux-59ea746337c69f6a5f1bc4d5e8544b3cbf12f801.tar.gz
linux-59ea746337c69f6a5f1bc4d5e8544b3cbf12f801.tar.bz2
linux-59ea746337c69f6a5f1bc4d5e8544b3cbf12f801.zip
MM: virtual address debug
Add some (configurable) expensive sanity checking to catch wrong address translations on x86. - create linux/mmdebug.h file to be able include this file in asm headers to not get unsolvable loops in header files - __phys_addr on x86_32 became a function in ioremap.c since PAGE_OFFSET, is_vmalloc_addr and VMALLOC_* non-constasts are undefined if declared in page_32.h - add __phys_addr_const for initializing doublefault_tss.__cr3 Tested on 386, 386pae, x86_64 and x86_64 numa=fake=2. Contains Andi's enable numa virtual address debug patch. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/doublefault_32.c')
-rw-r--r--arch/x86/kernel/doublefault_32.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/doublefault_32.c b/arch/x86/kernel/doublefault_32.c
index a47798b59f07..395acb12b0d1 100644
--- a/arch/x86/kernel/doublefault_32.c
+++ b/arch/x86/kernel/doublefault_32.c
@@ -66,6 +66,6 @@ struct tss_struct doublefault_tss __cacheline_aligned = {
.ds = __USER_DS,
.fs = __KERNEL_PERCPU,
- .__cr3 = __pa(swapper_pg_dir)
+ .__cr3 = __phys_addr_const((unsigned long)swapper_pg_dir)
}
};