On Fri, May 24, 2024 at 03:19:55PM +0100, Marc Zyngier wrote:
> It appears that we don't allowed a vcpu to be restored in AArch32
s/allowed/allow/
> System mode, as we *never* included it in the list of valid modes.
>
> Just add it to the list of allowed modes.
>
> Fixes: 0d854a60b1d7 ("arm64: KVM: enable initialization of a 32bit vcpu")
> Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx>
> Cc: stable@xxxxxxxxxxxxxxx
> ---
> arch/arm64/kvm/guest.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm64/kvm/guest.c b/arch/arm64/kvm/guest.c
> index d9617b11f7a8..11098eb7eb44 100644
> --- a/arch/arm64/kvm/guest.c
> +++ b/arch/arm64/kvm/guest.c
> @@ -251,6 +251,7 @@ static int set_core_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg)
> case PSR_AA32_MODE_SVC:
> case PSR_AA32_MODE_ABT:
> case PSR_AA32_MODE_UND:
> + case PSR_AA32_MODE_SYS:
> if (!vcpu_el1_is_32bit(vcpu))
> return -EINVAL;
> break;
> --
> 2.39.2
>
