On Mon, Sep 14, 2015 at 04:46:28PM +0100, Marc Zyngier wrote: > On 14/09/15 16:06, Will Deacon wrote: > > When restoring the system register state for an AArch32 guest at EL2, > > writes to DACR32_EL2 may not be correctly synchronised by Cortex-A57, > > which can lead to the guest effectively running with junk in the DACR > > and running into unexpected domain faults. > > > > This patch works around the issue by re-ordering our restoration of the > > AArch32 register aliases so that they happen before the AArch64 system > > registers. Ensuring that the registers are restored in this order > > guarantees that they will be correctly synchronised by the core. > > > > Cc: <sta...@vger.kernel.org> > > Cc: Marc Zyngier <marc.zyng...@arm.com> > > Signed-off-by: Will Deacon <will.dea...@arm.com> > > Reviewed-by: Marc Zyngier <marc.zyng...@arm.com> >
Looks good to me too, and I just gave this a spin with my loop test on Juno as well. Thanks, -Christoffer _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
