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| author | Peter Crosthwaite <peter.crosthwaite@xilinx.com> | 2015-06-19 14:17:44 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2015-06-19 14:17:44 +0100 |
| commit | 3281af8114c6b8ead02f08b58e3c36895c1ea047 (patch) | |
| tree | 2e44cde0a01139e71441e567ca2941b613e94880 /target-arm/helper.c | |
| parent | b061a82b8afcc45ce09d770d9c0acdf429401054 (diff) | |
| download | qemu-3281af8114c6b8ead02f08b58e3c36895c1ea047.tar.gz | |
target-arm/helper.c: define MPUIR register
Define the MPUIR register for MPU supporting ARMv6 and onwards.
Currently we only support unified MPU.
The size of the unified MPU is defined via the number of "dregions".
So just a single config is added to specify this size. (When split MPU
is implemented we will add an extra iregions config).
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 9f248950b803a08c8b3c978931663182f7e882e7.1434501320.git.peter.crosthwaite@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target-arm/helper.c')
| -rw-r--r-- | target-arm/helper.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/target-arm/helper.c b/target-arm/helper.c index fbf20b619e..1cb881226a 100644 --- a/target-arm/helper.c +++ b/target-arm/helper.c @@ -3457,6 +3457,13 @@ void register_cp_regs_for_features(ARMCPU *cpu) .cp = 15, .crn = 0, .crm = 0, .opc1 = 0, .opc2 = 3, .access = PL1_R, .type = ARM_CP_CONST, .resetvalue = 0, }; + /* MPUIR is specific to PMSA V6+ */ + ARMCPRegInfo id_mpuir_reginfo = { + .name = "MPUIR", + .cp = 15, .crn = 0, .crm = 0, .opc1 = 0, .opc2 = 4, + .access = PL1_R, .type = ARM_CP_CONST, + .resetvalue = cpu->pmsav7_dregion << 8 + }; ARMCPRegInfo crn0_wi_reginfo = { .name = "CRN0_WI", .cp = 15, .crn = 0, .crm = CP_ANY, .opc1 = CP_ANY, .opc2 = CP_ANY, .access = PL1_W, @@ -3479,6 +3486,7 @@ void register_cp_regs_for_features(ARMCPU *cpu) r->access = PL1_RW; } id_tlbtr_reginfo.access = PL1_RW; + id_tlbtr_reginfo.access = PL1_RW; } if (arm_feature(env, ARM_FEATURE_V8)) { define_arm_cp_regs(cpu, id_v8_midr_cp_reginfo); @@ -3488,6 +3496,8 @@ void register_cp_regs_for_features(ARMCPU *cpu) define_arm_cp_regs(cpu, id_cp_reginfo); if (!arm_feature(env, ARM_FEATURE_MPU)) { define_one_arm_cp_reg(cpu, &id_tlbtr_reginfo); + } else if (arm_feature(env, ARM_FEATURE_V7)) { + define_one_arm_cp_reg(cpu, &id_mpuir_reginfo); } } |