[PATCH v2] arm64: KVM: VHE: Context switch MDSCR_EL1

[marc.zyngier@arm.com (Marc Zyngier)]

On Thu, 21 Jul 2016 15:17:20 +0200
Radim Kr?m?? <rkrcmar@redhat.com> wrote:

Hi Radim,

> 2016-07-19 13:56+0100, Marc Zyngier:
> > The kprobe enablement work has uncovered that changes made by
> > a guest to MDSCR_EL1 were propagated to the host when VHE was
> > enabled, leading to unexpected exception being delivered.
> > 
> > Moving this register to the list of registers that are always
> > context-switched fixes the issue.
> > 
> > Fixes: 9c6c35683286 ("arm64: KVM: VHE: Split save/restore of registers shared between guest and host")
> > Cc: stable at vger.kernel.org #4.6
> > Reported-by: Tirumalesh Chalamarla <Tirumalesh.Chalamarla@cavium.com>
> > Tested-by: Tirumalesh Chalamarla <Tirumalesh.Chalamarla@cavium.com>
> > Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
> > ---  
> 
> I would take this patch to 4.7 directly through the main tree.
> Are your plans different?

If you're happy to take it now, that works for me. I can either send a
PR right away, or you can apply it directly, whichever works best for
you.

Thanks,

	M.
-- 
Jazz is not dead. It just smells funny.