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Date: Tue, 26 May 2015 10:28:19 +0200 From: Borislav Petkov <bp@...en8.de> To: Ingo Molnar <mingo@...nel.org> Cc: X86-ML <x86@...nel.org>, LKML <linux-kernel@...r.kernel.org> Subject: [PATCH 16/18] x86/documentation: Remove STACKFAULT_STACK bulletpoint From: Borislav Petkov <bp@...e.de> Update the documentation after 6f442be2fb22 ("x86_64, traps: Stop using IST for #SS"). Signed-off-by: Borislav Petkov <bp@...e.de> Cc: Ingo Molnar <mingo@...nel.org> Cc: Josh Poimboeuf <jpoimboe@...hat.com> Cc: Andy Lutomirski <luto@...nel.org> Cc: Thomas Gleixner <tglx@...utronix.de> Cc: "H. Peter Anvin" <hpa@...or.com> Cc: Michal Marek <mmarek@...e.cz> Cc: Peter Zijlstra <peterz@...radead.org> Cc: X86 ML <x86@...nel.org> Cc: live-patching@...r.kernel.org Cc: lkml <linux-kernel@...r.kernel.org> Cc: Linus Torvalds <torvalds@...ux-foundation.org> Cc: Denys Vlasenko <dvlasenk@...hat.com> Cc: Brian Gerst <brgerst@...il.com> Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl> Cc: Andrew Morton <akpm@...ux-foundation.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 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). -- 1.9.0.258.g00eda23 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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