On Fri, 12 Sep 2025 10:25:31 +0100,
Mark Brown <[email protected]> wrote:
>
> Now that required functionality for GCS is in place expose
> ID_AA64PFR1_EL1.GCS, allowing guests to be given the feature.
>
> Signed-off-by: Mark Brown <[email protected]>
> ---
> arch/arm64/kvm/nested.c | 7 ++++---
> arch/arm64/kvm/sys_regs.c | 2 --
> 2 files changed, 4 insertions(+), 5 deletions(-)
>
> diff --git a/arch/arm64/kvm/nested.c b/arch/arm64/kvm/nested.c
> index 153b3e11b115..d2d55e18c610 100644
> --- a/arch/arm64/kvm/nested.c
> +++ b/arch/arm64/kvm/nested.c
> @@ -1459,9 +1459,10 @@ u64 limit_nv_id_reg(struct kvm *kvm, u32 reg, u64 val)
>
> case SYS_ID_AA64PFR1_EL1:
> /* Only support BTI, SSBS, CSV2_frac */
> - val &= (ID_AA64PFR1_EL1_BT |
> - ID_AA64PFR1_EL1_SSBS |
> - ID_AA64PFR1_EL1_CSV2_frac);
> + val &= (ID_AA64PFR1_EL1_BT |
> + ID_AA64PFR1_EL1_SSBS |
> + ID_AA64PFR1_EL1_CSV2_frac |
> + ID_AA64PFR1_EL1_GCS);
How about updating the comment?
M.
--
Jazz isn't dead. It just smells funny.
