Re: [Qemu-devel] [PATCH 4/4] target-arm: Implement missing ACTLR registers

["Edgar E. Iglesias" <edgar.iglesias@gmail.com>]

On Thu, Jul 30, 2015 at 07:36:38PM +0100, Peter Maydell wrote:
> We already implemented ACTLR_EL1; add the missing ACTLR_EL2 and
> ACTLR_EL3, for consistency.
> 
> Since we don't currently have any CPUs that need the EL2/EL3
> versions to reset to non-zero values, implement as RAZ/WI.
> 
> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>


> ---
>  target-arm/helper.c | 21 +++++++++++++++------
>  1 file changed, 15 insertions(+), 6 deletions(-)
> 
> diff --git a/target-arm/helper.c b/target-arm/helper.c
> index d286680..b0b1a22 100644
> --- a/target-arm/helper.c
> +++ b/target-arm/helper.c
> @@ -3637,13 +3637,22 @@ void register_cp_regs_for_features(ARMCPU *cpu)
>      }
>  
>      if (arm_feature(env, ARM_FEATURE_AUXCR)) {
> -        ARMCPRegInfo auxcr = {
> -            .name = "ACTLR_EL1", .state = ARM_CP_STATE_BOTH,
> -            .opc0 = 3, .opc1 = 0, .crn = 1, .crm = 0, .opc2 = 1,
> -            .access = PL1_RW, .type = ARM_CP_CONST,
> -            .resetvalue = cpu->reset_auxcr
> +        ARMCPRegInfo auxcr_reginfo[] = {
> +            { .name = "ACTLR_EL1", .state = ARM_CP_STATE_BOTH,
> +              .opc0 = 3, .opc1 = 0, .crn = 1, .crm = 0, .opc2 = 1,
> +              .access = PL1_RW, .type = ARM_CP_CONST,
> +              .resetvalue = cpu->reset_auxcr },
> +            { .name = "ACTLR_EL2", .state = ARM_CP_STATE_BOTH,
> +              .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 0, .opc2 = 1,
> +              .access = PL2_RW, .type = ARM_CP_CONST,
> +              .resetvalue = 0 },
> +            { .name = "ACTLR_EL3", .state = ARM_CP_STATE_AA64,
> +              .opc0 = 3, .opc1 = 6, .crn = 1, .crm = 0, .opc2 = 1,
> +              .access = PL3_RW, .type = ARM_CP_CONST,
> +              .resetvalue = 0 },
> +            REGINFO_SENTINEL
>          };
> -        define_one_arm_cp_reg(cpu, &auxcr);
> +        define_arm_cp_regs(cpu, auxcr_reginfo);
>      }
>  
>      if (arm_feature(env, ARM_FEATURE_CBAR)) {
> -- 
> 1.9.1
>