On Fri, 02 Aug 2024 22:57:53 +0100,
Mark Brown <broonie@xxxxxxxxxx> wrote:
>
> Since we already import the generated sysreg definitions from the main
> kernel and reference them in processor.h for use in other KVM tests we
> can also make use of them for get-reg-list as well instead of having hard
> coded magic numbers in the program. Do this for the table defining which
> registers should be gated on ID register values, using a macro which allows
> us to specify the register and ID register field in a much more compact
> and direct fashion.
>
> In the process we fix the ID register checked for S1PIE specific registers
> which was using an incorrect shift of 4, checking SCTLRX support instead.
> No other change is seen in the generated data.
>
> Fixes: 5f0419a0083b ("KVM: selftests: get-reg-list: add Permission Indirection registers")
> Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
> ---
> tools/testing/selftests/kvm/aarch64/get-reg-list.c | 29 ++++++++--------------
> 1 file changed, 11 insertions(+), 18 deletions(-)
>
> diff --git a/tools/testing/selftests/kvm/aarch64/get-reg-list.c b/tools/testing/selftests/kvm/aarch64/get-reg-list.c
> index 709d7d721760..a00322970578 100644
> --- a/tools/testing/selftests/kvm/aarch64/get-reg-list.c
> +++ b/tools/testing/selftests/kvm/aarch64/get-reg-list.c
> @@ -22,25 +22,18 @@ struct feature_id_reg {
> __u64 feat_min;
> };
>
> -static struct feature_id_reg feat_id_regs[] = {
> - {
> - ARM64_SYS_REG(3, 0, 2, 0, 3), /* TCR2_EL1 */
> - ARM64_SYS_REG(3, 0, 0, 7, 3), /* ID_AA64MMFR3_EL1 */
> - 0,
> - 1
> - },
> - {
> - ARM64_SYS_REG(3, 0, 10, 2, 2), /* PIRE0_EL1 */
> - ARM64_SYS_REG(3, 0, 0, 7, 3), /* ID_AA64MMFR3_EL1 */
> - 4,
> - 1
> - },
> - {
> - ARM64_SYS_REG(3, 0, 10, 2, 3), /* PIR_EL1 */
> - ARM64_SYS_REG(3, 0, 0, 7, 3), /* ID_AA64MMFR3_EL1 */
> - 4,
> - 1
> +#define FEAT_ID_CHECK(reg, id_reg, id_field, id_val) \
> + { \
> + KVM_ARM64_SYS_REG(SYS_##reg), \
> + KVM_ARM64_SYS_REG(SYS_##id_reg), \
> + id_reg##_##id_field##_SHIFT, \
> + id_reg##_##id_field##_##id_val, \
Please use designated initialisers.
> }
> +
> +static struct feature_id_reg feat_id_regs[] = {
> + FEAT_ID_CHECK(TCR2_EL1, ID_AA64MMFR3_EL1, TCRX, IMP),
> + FEAT_ID_CHECK(PIRE0_EL1, ID_AA64MMFR3_EL1, S1PIE, IMP),
> + FEAT_ID_CHECK(PIR_EL1, ID_AA64MMFR3_EL1, S1PIE, IMP),
> };
>
> bool filter_reg(__u64 reg)
Thanks,
M.
--
Without deviation from the norm, progress is not possible.
