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| author | Borislav Petkov <bp@suse.de> | 2015-05-26 10:28:19 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-05-27 14:39:46 +0200 |
| commit | d724a9a52b0026ac6a05440c079c9a618acfd8cf (patch) | |
| tree | bdc0664be6b4c680648636982a5bba69e06790dc /Documentation/x86 | |
| parent | 54fd15780526c47fa29a85b066cf69996be59a59 (diff) | |
| download | linux-d724a9a52b0026ac6a05440c079c9a618acfd8cf.tar.bz2 | |
x86/Documentation: Remove STACKFAULT_STACK bulletpoint
Update the documentation after
6f442be2fb22 ("x86_64, traps: Stop using IST for #SS").
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Michal Marek <mmarek@suse.cz>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: live-patching@vger.kernel.org
Link: http://lkml.kernel.org/r/1432628901-18044-17-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'Documentation/x86')
| -rw-r--r-- | Documentation/x86/kernel-stacks | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/Documentation/x86/kernel-stacks b/Documentation/x86/kernel-stacks index e3c8a49d1a2f..c3c935b9d56e 100644 --- a/Documentation/x86/kernel-stacks +++ b/Documentation/x86/kernel-stacks @@ -1,3 +1,6 @@ +Kernel stacks on x86-64 bit +--------------------------- + Most of the text from Keith Owens, hacked by AK x86_64 page size (PAGE_SIZE) is 4K. @@ -56,13 +59,6 @@ If that assumption is ever broken then the stacks will become corrupt. The currently assigned IST stacks are :- -* STACKFAULT_STACK. EXCEPTION_STKSZ (PAGE_SIZE). - - Used for interrupt 12 - Stack Fault Exception (#SS). - - This allows the CPU to recover from invalid stack segments. Rarely - happens. - * DOUBLEFAULT_STACK. EXCEPTION_STKSZ (PAGE_SIZE). Used for interrupt 8 - Double Fault Exception (#DF). |