From: Jeremy Fitzhardinge Date: Wed, 28 Jan 2009 22:35:03 +0000 (-0800) Subject: x86: fix paravirt clobber in entry_64.S X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=b8aa287f77be943e37a84fa4657e27df95269bfb;p=linux-2.6-omap-h63xx.git x86: fix paravirt clobber in entry_64.S Impact: Fix latent bug The clobber is trying to say that anything except RDI is available for clobbering, but actually clobbers everything. This hasn't mattered because the clobbers were basically ignored, but subsequent patches will rely on them. Signed-off-by: Jeremy Fitzhardinge Signed-off-by: H. Peter Anvin --- diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S index a52703864a1..e4c9710cae5 100644 --- a/arch/x86/kernel/entry_64.S +++ b/arch/x86/kernel/entry_64.S @@ -1140,7 +1140,7 @@ ENTRY(native_load_gs_index) CFI_STARTPROC pushf CFI_ADJUST_CFA_OFFSET 8 - DISABLE_INTERRUPTS(CLBR_ANY | ~(CLBR_RDI)) + DISABLE_INTERRUPTS(CLBR_ANY & ~CLBR_RDI) SWAPGS gs_change: movl %edi,%gs