Commit-ID: fdbd518adfaf2c10903250dffe70c61ed90b7dd7 Gitweb: http://git.kernel.org/tip/fdbd518adfaf2c10903250dffe70c61ed90b7dd7 Author: Jan Beulich <[email protected]> AuthorDate: Fri, 3 Feb 2017 01:58:03 -0700 Committer: Ingo Molnar <[email protected]> CommitDate: Wed, 1 Mar 2017 10:16:30 +0100
x86/entry/32: Relax a pvops stub clobber specification The code at .Lrestore_nocheck does not make any assumptions on register values, so all registers can be clobbered on code paths leading there. Signed-off-by: Jan Beulich <[email protected]> Cc: Andy Lutomirski <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Brian Gerst <[email protected]> Cc: Denys Vlasenko <[email protected]> Cc: H. Peter Anvin <[email protected]> Cc: Josh Poimboeuf <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]> --- arch/x86/entry/entry_32.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S index 57f7ec3..5553475 100644 --- a/arch/x86/entry/entry_32.S +++ b/arch/x86/entry/entry_32.S @@ -585,7 +585,7 @@ ENTRY(iret_exc ) * will soon execute iret and the tracer was already set to * the irqstate after the IRET: */ - DISABLE_INTERRUPTS(CLBR_EAX) + DISABLE_INTERRUPTS(CLBR_ANY) lss (%esp), %esp /* switch to espfix segment */ jmp .Lrestore_nocheck #endif
