Commit-ID: fdbd518adfaf2c10903250dffe70c61ed90b7dd7 Gitweb: http://git.kernel.org/tip/fdbd518adfaf2c10903250dffe70c61ed90b7dd7 Author: Jan Beulich <jbeul...@suse.com> AuthorDate: Fri, 3 Feb 2017 01:58:03 -0700 Committer: Ingo Molnar <mi...@kernel.org> 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 <jbeul...@suse.com> Cc: Andy Lutomirski <l...@kernel.org> Cc: Borislav Petkov <b...@alien8.de> Cc: Brian Gerst <brge...@gmail.com> Cc: Denys Vlasenko <dvlas...@redhat.com> Cc: H. Peter Anvin <h...@zytor.com> Cc: Josh Poimboeuf <jpoim...@redhat.com> Cc: Linus Torvalds <torva...@linux-foundation.org> Cc: Peter Zijlstra <pet...@infradead.org> Cc: Thomas Gleixner <t...@linutronix.de> Link: http://lkml.kernel.org/r/5894542b0200007800136...@prv-mh.provo.novell.com Signed-off-by: Ingo Molnar <mi...@kernel.org> --- 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
