Re: [Xen-devel] [PATCH] x86/PVH: only set accessed/busy bits for present segments

2017-01-24 Thread Roger Pau Monne
On Tue, Jan 24, 2017 at 03:57:17AM -0700, Jan Beulich wrote: > >>> On 24.01.17 at 11:50, wrote: > > On Tue, Jan 24, 2017 at 01:56:34AM -0700, Jan Beulich wrote: > >> Commit 366ff5f1b3 ("x86: segment attribute handling adjustments" went a > >> little too far: We must not do such adjustments for non

Re: [Xen-devel] [PATCH] x86/PVH: only set accessed/busy bits for present segments

2017-01-24 Thread Jan Beulich
>>> On 24.01.17 at 11:50, wrote: > On Tue, Jan 24, 2017 at 01:56:34AM -0700, Jan Beulich wrote: >> Commit 366ff5f1b3 ("x86: segment attribute handling adjustments" went a >> little too far: We must not do such adjustments for non-present segments. >> >> Reported-by: Roger Pau Monné >> Signed-off

Re: [Xen-devel] [PATCH] x86/PVH: only set accessed/busy bits for present segments

2017-01-24 Thread Roger Pau Monne
On Tue, Jan 24, 2017 at 01:56:34AM -0700, Jan Beulich wrote: > Commit 366ff5f1b3 ("x86: segment attribute handling adjustments" went a > little too far: We must not do such adjustments for non-present segments. > > Reported-by: Roger Pau Monné > Signed-off-by: Jan Beulich Reviewed-by: Roger Pau

Re: [Xen-devel] [PATCH] x86/PVH: only set accessed/busy bits for present segments

2017-01-24 Thread Andrew Cooper
On 24/01/2017 08:56, Jan Beulich wrote: > Commit 366ff5f1b3 ("x86: segment attribute handling adjustments" went a > little too far: We must not do such adjustments for non-present segments. > > Reported-by: Roger Pau Monné > Signed-off-by: Jan Beulich Reviewed-by: Andrew Cooper ___

[Xen-devel] [PATCH] x86/PVH: only set accessed/busy bits for present segments

2017-01-24 Thread Jan Beulich
Commit 366ff5f1b3 ("x86: segment attribute handling adjustments" went a little too far: We must not do such adjustments for non-present segments. Reported-by: Roger Pau Monné Signed-off-by: Jan Beulich --- a/xen/arch/x86/domain.c +++ b/xen/arch/x86/domain.c @@ -1374,8 +1374,10 @@ int arch_set_i