Re: [Xen-devel] [PATCH v1 1/1] xen/arm: Disable the Cortex-a53-edac

[Stefano Stabellini <sstabellini@xxxxxxxxxx>]

On Fri, 7 Oct 2016, Alistair Francis wrote:
> On Thu, Oct 6, 2016 at 9:36 AM, Edgar E. Iglesias
> <edgar.iglesias@xxxxxxxxx> wrote:
> > From: "Edgar E. Iglesias" <edgar.iglesias@xxxxxxxxxx>
> >
> > Disable the Cortex-a53-edac. Xen currently does not yet
> > handle reads/writes to the implementation defined CPUMERRSR
> > register.
> >
> > Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xxxxxxxxxx>
> 
> This solution looks fine to me and everything boots on ZynqMP as
> expected with this patch.
> 
> Acked-by: Alistair Francis <alistair.francis@xxxxxxxxxx>

Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>

Wei, can we have this in 4.8? See the 0/1 email for an explanation of
why this change is needed. The patch just adds the troublesome
cortex-a15-pmu to the "skip_matches" array to remove it from dom0's
device tree.


> > ---
> >  xen/arch/arm/domain_build.c | 1 +
> >  1 file changed, 1 insertion(+)
> >
> > diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c
> > index ce97359..e8a400c 100644
> > --- a/xen/arch/arm/domain_build.c
> > +++ b/xen/arch/arm/domain_build.c
> > @@ -1188,6 +1188,7 @@ static int handle_node(struct domain *d, struct 
> > kernel_info *kinfo,
> >          DT_MATCH_COMPATIBLE("arm,psci-1.0"),
> >          DT_MATCH_COMPATIBLE("arm,cortex-a7-pmu"),
> >          DT_MATCH_COMPATIBLE("arm,cortex-a15-pmu"),
> > +        DT_MATCH_COMPATIBLE("arm,cortex-a53-edac"),
> >          DT_MATCH_COMPATIBLE("arm,armv8-pmuv3"),
> >          DT_MATCH_PATH("/cpus"),
> >          DT_MATCH_TYPE("memory"),
> > --
> > 2.5.0
> >
> >
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@xxxxxxxxxxxxx
> > https://lists.xen.org/xen-devel
> 

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