diff options
Diffstat (limited to 'target-arm/helper.c')
| -rw-r--r-- | target-arm/helper.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/target-arm/helper.c b/target-arm/helper.c index 4b2fc0903b..6c55cc4083 100644 --- a/target-arm/helper.c +++ b/target-arm/helper.c @@ -1849,6 +1849,17 @@ static void ats_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) A32_BANKED_CURRENT_REG_SET(env, par, par64); } +static void ats1h_write(CPUARMState *env, const ARMCPRegInfo *ri, + uint64_t value) +{ + int access_type = ri->opc2 & 1; + uint64_t par64; + + par64 = do_ats_write(env, value, access_type, ARMMMUIdx_S2NS); + + A32_BANKED_CURRENT_REG_SET(env, par, par64); +} + static CPAccessResult at_s1e2_access(CPUARMState *env, const ARMCPRegInfo *ri) { if (arm_current_el(env) == 3 && !(env->cp15.scr_el3 & SCR_NS)) { @@ -3066,6 +3077,17 @@ static const ARMCPRegInfo el2_cp_reginfo[] = { .opc0 = 1, .opc1 = 4, .crn = 7, .crm = 8, .opc2 = 1, .access = PL2_W, .accessfn = at_s1e2_access, .type = ARM_CP_NO_RAW, .writefn = ats_write64 }, + /* The AArch32 ATS1H* operations are CONSTRAINED UNPREDICTABLE + * if EL2 is not implemented; we choose to UNDEF. Behaviour at EL3 + * with SCR.NS == 0 outside Monitor mode is UNPREDICTABLE; we choose + * to behave as if SCR.NS was 1. + */ + { .name = "ATS1HR", .cp = 15, .opc1 = 4, .crn = 7, .crm = 8, .opc2 = 0, + .access = PL2_W, + .writefn = ats1h_write, .type = ARM_CP_NO_RAW }, + { .name = "ATS1HW", .cp = 15, .opc1 = 4, .crn = 7, .crm = 8, .opc2 = 1, + .access = PL2_W, + .writefn = ats1h_write, .type = ARM_CP_NO_RAW }, { .name = "CNTHCTL_EL2", .state = ARM_CP_STATE_BOTH, .opc0 = 3, .opc1 = 4, .crn = 14, .crm = 1, .opc2 = 0, /* ARMv7 requires bit 0 and 1 to reset to 1. ARMv8 defines the |