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Date: Wed, 6 Jun 2012 11:42:54 +0200
From: Borislav Petkov <bp@...en8.de>
To: Ingo Molnar <mingo@...nel.org>
Cc: "H. Peter Anvin" <hpa@...or.com>,
Konrad Rzeszutek Wilk <konrad@...nok.org>,
Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
Jacob Shin <jacob.shin@....com>,
Andre Przywara <andre.przywara@....com>, jeremy@...p.org,
xen-devel@...ts.xensource.com, linux-kernel@...r.kernel.org,
Jan Beulich <JBeulich@...e.com>, mingo@...e.hu,
tglx@...utronix.de
Subject: Re: [Xen-devel] [PATCH] x86/amd: fix crash as Xen Dom0 on AMD
Trinity systems
On Wed, Jun 06, 2012 at 11:27:13AM +0200, Ingo Molnar wrote:
>
> * H. Peter Anvin <hpa@...or.com> wrote:
>
> > On 05/30/2012 03:33 PM, Konrad Rzeszutek Wilk wrote:
> > > diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
> > > index 75f33b2..e74df95 100644
> > > --- a/arch/x86/xen/enlighten.c
> > > +++ b/arch/x86/xen/enlighten.c
> > > @@ -1116,7 +1116,10 @@ static const struct pv_cpu_ops xen_cpu_ops __initconst = {
> > > .wbinvd = native_wbinvd,
> > >
> > > .read_msr = native_read_msr_safe,
> > > + .rdmsr_regs = native_rdmsr_safe_regs,
> > > .write_msr = xen_write_msr_safe,
> > > + .wrmsr_regs = native_wrmsr_safe_regs,
> > > +
> > > .read_tsc = native_read_tsc,
> > > .read_pmc = native_read_pmc,
> > >
> >
> > Okay, tell me again:
> >
> > why do we have these hooks again? Can we please weed out
> > paravirt methods that have no users?
>
> ping?
I think we solved all that and hpa wanted to queue them up shortly:
http://marc.info/?l=linux-kernel&m=133856342618027&w=2
If it's easier, I can send you a pull request later.
Thanks.
--
Regards/Gruss,
Boris.
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