On Wed, 8 Jul 2020 17:25:46 +0100, Will Deacon wrote:
> PAGE_HYP_DEVICE is intended to encode attribute bits for an EL2 stage-1
> pte mapping a device. Unfortunately, it includes PROT_DEVICE_nGnRE which
> encodes attributes for EL1 stage-1 mappings such as UXN and nG, which are
> RES0 for EL2, and DBM which is meaningless as TCR_EL2.HD is not set.
>
> Fix the definition of PAGE_HYP_DEVICE so that it doesn't set RES0 bits
> at EL2.
Applied to arm64 (for-next/fixes), thanks!
[1/1] KVM: arm64: Fix definition of PAGE_HYP_DEVICE
https://git.kernel.org/arm64/c/68cf617309b5
Cheers,
--
Will
https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev
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