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H A D | sysreg-sr.c | 1ff2755d Sat Apr 08 11:04:26 CDT 2023 Marc Zyngier <maz@kernel.org> KVM: arm64: vhe: Synchronise with page table walker on MMU update
Contrary to nVHE, VHE is a lot easier when it comes to dealing with speculative page table walks started at EL1. As we only change EL1&0 translation regime when context-switching, we already benefit from the effect of the DSB that sits in the context switch code.
We only need to take care of it in the NV case, where we can flip between between two EL1 contexts (one of them being the virtual EL2) without a context switch.
Signed-off-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Oliver Upton <oliver.upton@linux.dev>
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