[PATCH] arm64: KVM: VHE: reset PSTATE.PAN on entry to EL2

[Marc Zyngier]

On 01/09/16 15:29, Vladimir Murzin wrote:
> SCTLR_EL2.SPAN bit controls what happens with the PSTATE.PAN bit on an
> exception. However, this bit has no effect on the PSTATE.PAN when
> HCR_EL2.E2H or HCR_EL2.TGE is unset. Thus when VHE is used and
> exception taken from a guest PSTATE.PAN bit left unchanged and we
> continue with a value guest has set.
> 
> To address that always reset PSTATE.PAN on entry from EL1.
> 
> Fixes: 1f364c8c48a0 ("arm64: VHE: Add support for running Linux in EL2 mode")
> 
> Signed-off-by: Vladimir Murzin <vladimir.murzin at arm.com>
> Reviewed-by: James Morse <james.morse at arm.com>

Acked-by: Marc Zyngier <marc.zyngier at arm.com>

	M.
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