[PATCH v2 2/2] KVM: arm64: Trap access to SMPRI_EL1 and TPIDR2 in VHE mode

[Marc Zyngier]

On Tue, 01 Nov 2022 14:30:09 +0000,
Mark Brown <broonie at kernel.org> wrote:
> 
> On Tue, Nov 01, 2022 at 01:33:16PM +0000, Marc Zyngier wrote:
> > Date: Tue, 1 Nov 2022 12:19:51 +0000
> > Subject: [PATCH] KVM: arm64: Fix SMPRI_EL1/TPIDR2_EL0 trapping on VHE
> > 
> > The trapping of SMPRI_EL1 and TPIDR2_EL0 currently only really
> > work on nVHE, as only this mode uses the fine-grained trapping
> > that controls these two registers.
> > 
> > Move the trapping enable/disable code into
> > __{de,}activate_traps_common(), allowing it to be called when it
> > actually matters on VHE, and remove the flipping of EL2 control
> > for TPIDR2_EL0, which only affects the host access of this
> > register.
> > 
> > Fixes: 861262ab8627 ("KVM: arm64: Handle SME host state when running guests")
> > Signed-off-by: Marc Zyngier <maz at kernel.org>
> > Cc: stable at vger.kernel.org
> 
> Reported-by: Mark Brown <broonie at kernel.org>
> Reviewed-by: Mark Brown <broonie at kernel.org>

Thanks. I've now applied the first patch and this one to kvmarm/fixes.

	M.

-- 
Without deviation from the norm, progress is not possible.