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| author | Jiri Slaby <jirislaby@gmail.com> | 2008-06-12 13:56:40 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-06-19 13:31:42 +0200 |
| commit | 59ea746337c69f6a5f1bc4d5e8544b3cbf12f801 (patch) | |
| tree | 118c9c69eb8a2f6a22c62967ec36288153c87303 /arch/x86/kernel/doublefault_32.c | |
| parent | 952f4a0a9b27e6dbd5d32e330b3f609ebfa0b061 (diff) | |
| download | linux-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.c | 2 |
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) } }; |