On Tue, Sep 01, 2026 at 10:47:08PM +0100, Mark Brown wrote:
> GCS adds new registers GCSCR_ELx, GCSCRE0_EL1 and GCSPR_ELx. Add
> these to those validated by get-reg-list.
> 
> Reviewed-by: Thiago Jung Bauermann <[email protected]>
> Signed-off-by: Mark Brown <[email protected]>
> ---
>  tools/testing/selftests/kvm/arm64/get-reg-list.c | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
> 
> diff --git a/tools/testing/selftests/kvm/arm64/get-reg-list.c 
> b/tools/testing/selftests/kvm/arm64/get-reg-list.c
> index 533994687b5d..5c1469153b6c 100644
> --- a/tools/testing/selftests/kvm/arm64/get-reg-list.c
> +++ b/tools/testing/selftests/kvm/arm64/get-reg-list.c
> @@ -42,6 +42,12 @@ struct feature_id_reg {
>  static struct feature_id_reg feat_id_regs[] = {
>       REG_FEAT(TCR2_EL1,      ID_AA64MMFR3_EL1, TCRX, IMP),
>       REG_FEAT(TCR2_EL2,      ID_AA64MMFR3_EL1, TCRX, IMP),
> +     REG_FEAT(GCSPR_EL0,     ID_AA64PFR1_EL1, GCS, IMP),
> +     REG_FEAT(GCSPR_EL1,     ID_AA64PFR1_EL1, GCS, IMP),
> +     REG_FEAT(GCSPR_EL2,     ID_AA64PFR1_EL1, GCS, IMP),
> +     REG_FEAT(GCSCRE0_EL1,   ID_AA64PFR1_EL1, GCS, IMP),
> +     REG_FEAT(GCSCR_EL1,     ID_AA64PFR1_EL1, GCS, IMP),
> +     REG_FEAT(GCSCR_EL2,     ID_AA64PFR1_EL1, GCS, IMP),
>       REG_FEAT(PIRE0_EL1,     ID_AA64MMFR3_EL1, S1PIE, IMP),
>       REG_FEAT(PIRE0_EL2,     ID_AA64MMFR3_EL1, S1PIE, IMP),
>       REG_FEAT(PIR_EL1,       ID_AA64MMFR3_EL1, S1PIE, IMP),
> @@ -503,6 +509,9 @@ static __u64 base_regs[] = {
>       ARM64_SYS_REG(3, 0, 2, 0, 1),   /* TTBR1_EL1 */
>       ARM64_SYS_REG(3, 0, 2, 0, 2),   /* TCR_EL1 */
>       ARM64_SYS_REG(3, 0, 2, 0, 3),   /* TCR2_EL1 */
> +     ARM64_SYS_REG(3, 0, 2, 5, 0),   /* GCSCR_EL1 */
> +     ARM64_SYS_REG(3, 0, 2, 5, 1),   /* GCSPR_EL1 */
> +     ARM64_SYS_REG(3, 0, 2, 5, 2),   /* GCSCRE0_EL1 */
>       ARM64_SYS_REG(3, 0, 5, 1, 0),   /* AFSR0_EL1 */
>       ARM64_SYS_REG(3, 0, 5, 1, 1),   /* AFSR1_EL1 */
>       ARM64_SYS_REG(3, 0, 5, 2, 0),   /* ESR_EL1 */
> @@ -519,6 +528,7 @@ static __u64 base_regs[] = {
>       ARM64_SYS_REG(3, 0, 13, 0, 4),  /* TPIDR_EL1 */
>       ARM64_SYS_REG(3, 0, 14, 1, 0),  /* CNTKCTL_EL1 */
>       ARM64_SYS_REG(3, 2, 0, 0, 0),   /* CSSELR_EL1 */
> +     ARM64_SYS_REG(3, 3, 2, 5, 1),   /* GCSPR_EL0 */
>       ARM64_SYS_REG(3, 3, 10, 2, 4),  /* POR_EL0 */
>       ARM64_SYS_REG(3, 3, 13, 0, 2),  /* TPIDR_EL0 */
>       ARM64_SYS_REG(3, 3, 13, 0, 3),  /* TPIDRRO_EL0 */
> @@ -740,6 +750,8 @@ static __u64 el2_regs[] = {
>       SYS_REG(VTTBR_EL2),
>       SYS_REG(VTCR_EL2),
>       SYS_REG(VNCR_EL2),
> +     SYS_REG(GCSPR_EL2),
> +     SYS_REG(GCSCR_EL2),
>       SYS_REG(HDFGRTR2_EL2),
>       SYS_REG(HDFGWTR2_EL2),
>       SYS_REG(HFGRTR2_EL2),
> 

Checked the IDs, everything seems correct.

Thanks!
Leo

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