diff options
Diffstat (limited to 'target-arm/helper.c')
| -rw-r--r-- | target-arm/helper.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/target-arm/helper.c b/target-arm/helper.c index 75850d6..e230a18 100644 --- a/target-arm/helper.c +++ b/target-arm/helper.c @@ -641,6 +641,26 @@ static const ARMCPRegInfo v7_cp_reginfo[] = { */ { .name = "AIDR", .cp = 15, .crn = 0, .crm = 0, .opc1 = 1, .opc2 = 7, .access = PL1_R, .type = ARM_CP_CONST, .resetvalue = 0 }, + /* MAIR can just read-as-written because we don't implement caches + * and so don't need to care about memory attributes. + */ + { .name = "MAIR_EL1", .state = ARM_CP_STATE_AA64, + .opc0 = 3, .opc1 = 0, .crn = 10, .crm = 2, .opc2 = 0, + .access = PL1_RW, .fieldoffset = offsetof(CPUARMState, cp15.mair_el1), + .resetvalue = 0 }, + /* For non-long-descriptor page tables these are PRRR and NMRR; + * regardless they still act as reads-as-written for QEMU. + * The override is necessary because of the overly-broad TLB_LOCKDOWN + * definition. + */ + { .name = "MAIR0", .state = ARM_CP_STATE_AA32, .type = ARM_CP_OVERRIDE, + .cp = 15, .opc1 = 0, .crn = 10, .crm = 2, .opc2 = 0, .access = PL1_RW, + .fieldoffset = offsetoflow32(CPUARMState, cp15.mair_el1), + .resetfn = arm_cp_reset_ignore }, + { .name = "MAIR1", .state = ARM_CP_STATE_AA32, .type = ARM_CP_OVERRIDE, + .cp = 15, .opc1 = 0, .crn = 10, .crm = 2, .opc2 = 1, .access = PL1_RW, + .fieldoffset = offsetofhigh32(CPUARMState, cp15.mair_el1), + .resetfn = arm_cp_reset_ignore }, REGINFO_SENTINEL }; @@ -1467,9 +1487,11 @@ static const ARMCPRegInfo lpae_cp_reginfo[] = { /* NOP AMAIR0/1: the override is because these clash with the rather * broadly specified TLB_LOCKDOWN entry in the generic cp_reginfo. */ - { .name = "AMAIR0", .cp = 15, .crn = 10, .crm = 3, .opc1 = 0, .opc2 = 0, + { .name = "AMAIR0", .state = ARM_CP_STATE_BOTH, + .opc0 = 3, .crn = 10, .crm = 3, .opc1 = 0, .opc2 = 0, .access = PL1_RW, .type = ARM_CP_CONST | ARM_CP_OVERRIDE, .resetvalue = 0 }, + /* AMAIR1 is mapped to AMAIR_EL1[63:32] */ { .name = "AMAIR1", .cp = 15, .crn = 10, .crm = 3, .opc1 = 0, .opc2 = 1, .access = PL1_RW, .type = ARM_CP_CONST | ARM_CP_OVERRIDE, .resetvalue = 0 }, |