On Wed, Dec 08, 2021 at 03:22:59PM +0000, Quentin Perret wrote:
> The kvm_host_owns_hyp_mappings() function should return true if and only
> if the host kernel is responsible for creating the hypervisor stage-1
> mappings. That is only possible in standard non-VHE mode, or during boot
> in protected nVHE mode. But either way, non of this makes sense in VHE,
Typo: non => none
> so make sure to catch this case as well, hence making the function
> return sensible values in any context (VHE or not).
>
> Suggested-by: Marc Zyngier <maz@xxxxxxxxxx>
> Signed-off-by: Quentin Perret <qperret@xxxxxxxxxx>
> ---
> arch/arm64/kvm/mmu.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
> index 605c104eb030..ea840fa223b5 100644
> --- a/arch/arm64/kvm/mmu.c
> +++ b/arch/arm64/kvm/mmu.c
> @@ -239,6 +239,9 @@ void free_hyp_pgds(void)
>
> static bool kvm_host_owns_hyp_mappings(void)
> {
> + if (is_kernel_in_hyp_mode())
> + return false;
Acked-by: Will Deacon <will@xxxxxxxxxx>
Will
_______________________________________________
kvmarm mailing list
kvmarm@xxxxxxxxxxxxxxxxxxxxx
https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
