Re: [Xen-devel] [PATCH] x86-64: fix updating of UREGS_rip when converting sysenter to #GP

[Keir Fraser <keir@xxxxxxx>]

On 17/04/2012 15:57, "Jan Beulich" <JBeulich@xxxxxxxx> wrote:

> (I spotted this copy-and-paste mistake only when backporting c/s
> 25200:80f4113be500 to 4.1 and 4.0.)
> 
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

Acked-by: Keir Fraser <keir@xxxxxxx>

> --- a/xen/arch/x86/x86_64/entry.S
> +++ b/xen/arch/x86/x86_64/entry.S
> @@ -280,7 +280,7 @@ sysenter_eflags_saved:
>  UNLIKELY_START(z, sysenter_gpf)
>          movq  VCPU_trap_ctxt(%rbx),%rsi
>          movl  $TRAP_gp_fault,UREGS_entry_vector(%rsp)
> -        subl  $2,UREGS_rip(%rsp)
> +        subq  $2,UREGS_rip(%rsp)
>          movl  %eax,TRAPBOUNCE_error_code(%rdx)
>          movq  TRAP_gp_fault * TRAPINFO_sizeof + TRAPINFO_eip(%rsi),%rax
>          testb $4,TRAP_gp_fault * TRAPINFO_sizeof + TRAPINFO_flags(%rsi)
> 
> 
> 
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