Messages in this thread Patch in this message | | | Date | Wed, 27 May 2015 07:17:20 -0700 | From | tip-bot for Borislav Petkov <> | Subject | [tip:x86/debug] x86/Documentation: Remove STACKFAULT_STACK bulletpoint |
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Commit-ID: d724a9a52b0026ac6a05440c079c9a618acfd8cf Gitweb: http://git.kernel.org/tip/d724a9a52b0026ac6a05440c079c9a618acfd8cf Author: Borislav Petkov <bp@suse.de> AuthorDate: Tue, 26 May 2015 10:28:19 +0200 Committer: Ingo Molnar <mingo@kernel.org> CommitDate: Wed, 27 May 2015 14:39:46 +0200
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> --- Documentation/x86/kernel-stacks | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-)
diff --git a/Documentation/x86/kernel-stacks b/Documentation/x86/kernel-stacks index e3c8a49..c3c935b 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).
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