[PATCH v5 2/2] KVM: arm64: Move FGT value configuration to vCPU state

[Marc Zyngier]

On Thu, 13 Jul 2023 16:15:36 +0100,
Mark Brown <broonie at kernel.org> wrote:
> 
> [1  <text/plain; us-ascii (7bit)>]
> On Thu, Jul 13, 2023 at 10:48:54AM +0100, Suzuki K Poulose wrote:
> > On 12/07/2023 13:50, Mark Brown wrote:
> 
> > > +	/* We currently assume the host configuration never changes */
> > > +	vcpu->arch.hfgrtr_el2_host = read_sysreg_s(SYS_HFGRTR_EL2);
> > > +	vcpu->arch.hfgwtr_el2_host = read_sysreg_s(SYS_HFGWTR_EL2);
> 
> > Doesn't this crash an nVHE host ?
> 
> This series is probably moot given Marc's nv series (or at least needs
> another rework) but could you expand on the issue you're seeing please?

You're reading EL2 registers from EL1. What could possibly go wrong?

	M.

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