diff options
Diffstat (limited to 'target-arm/helper.c')
| -rw-r--r-- | target-arm/helper.c | 39 |
1 files changed, 29 insertions, 10 deletions
diff --git a/target-arm/helper.c b/target-arm/helper.c index 1fda6be295..a9db2796c5 100644 --- a/target-arm/helper.c +++ b/target-arm/helper.c @@ -303,17 +303,21 @@ void init_cpreg_list(ARMCPU *cpu) static void dacr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) { + ARMCPU *cpu = arm_env_get_cpu(env); + env->cp15.c3 = value; - tlb_flush(env, 1); /* Flush TLB as domain not tracked in TLB */ + tlb_flush(CPU(cpu), 1); /* Flush TLB as domain not tracked in TLB */ } static void fcse_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) { + ARMCPU *cpu = arm_env_get_cpu(env); + if (env->cp15.c13_fcse != value) { /* Unlike real hardware the qemu TLB uses virtual addresses, * not modified virtual addresses, so this causes a TLB flush. */ - tlb_flush(env, 1); + tlb_flush(CPU(cpu), 1); env->cp15.c13_fcse = value; } } @@ -321,12 +325,14 @@ static void fcse_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) static void contextidr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) { + ARMCPU *cpu = arm_env_get_cpu(env); + if (env->cp15.c13_context != value && !arm_feature(env, ARM_FEATURE_MPU)) { /* For VMSA (when not using the LPAE long descriptor page table * format) this register includes the ASID, so do a TLB flush. * For PMSA it is purely a process ID and no action is needed. */ - tlb_flush(env, 1); + tlb_flush(CPU(cpu), 1); } env->cp15.c13_context = value; } @@ -335,7 +341,9 @@ static void tlbiall_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) { /* Invalidate all (TLBIALL) */ - tlb_flush(env, 1); + ARMCPU *cpu = arm_env_get_cpu(env); + + tlb_flush(CPU(cpu), 1); } static void tlbimva_write(CPUARMState *env, const ARMCPRegInfo *ri, @@ -351,7 +359,9 @@ static void tlbiasid_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) { /* Invalidate by ASID (TLBIASID) */ - tlb_flush(env, value == 0); + ARMCPU *cpu = arm_env_get_cpu(env); + + tlb_flush(CPU(cpu), value == 0); } static void tlbimvaa_write(CPUARMState *env, const ARMCPRegInfo *ri, @@ -1352,11 +1362,13 @@ static void vmsa_ttbcr_raw_write(CPUARMState *env, const ARMCPRegInfo *ri, static void vmsa_ttbcr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) { + ARMCPU *cpu = arm_env_get_cpu(env); + if (arm_feature(env, ARM_FEATURE_LPAE)) { /* With LPAE the TTBCR could result in a change of ASID * via the TTBCR.A1 bit, so do a TLB flush. */ - tlb_flush(env, 1); + tlb_flush(CPU(cpu), 1); } vmsa_ttbcr_raw_write(env, ri, value); } @@ -1371,8 +1383,10 @@ static void vmsa_ttbcr_reset(CPUARMState *env, const ARMCPRegInfo *ri) static void vmsa_tcr_el1_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) { + ARMCPU *cpu = arm_env_get_cpu(env); + /* For AArch64 the A1 bit could result in a change of ASID, so TLB flush. */ - tlb_flush(env, 1); + tlb_flush(CPU(cpu), 1); env->cp15.c2_control = value; } @@ -1383,7 +1397,9 @@ static void vmsa_ttbr_write(CPUARMState *env, const ARMCPRegInfo *ri, * must flush the TLB. */ if (cpreg_field_is_64bit(ri)) { - tlb_flush(env, 1); + ARMCPU *cpu = arm_env_get_cpu(env); + + tlb_flush(CPU(cpu), 1); } raw_write(env, ri, value); } @@ -1708,8 +1724,9 @@ static void tlbi_aa64_asid_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) { /* Invalidate by ASID (AArch64 version) */ + ARMCPU *cpu = arm_env_get_cpu(env); int asid = extract64(value, 48, 16); - tlb_flush(env, asid == 0); + tlb_flush(CPU(cpu), asid == 0); } static const ARMCPRegInfo v8_cp_reginfo[] = { @@ -1835,10 +1852,12 @@ static const ARMCPRegInfo v8_cp_reginfo[] = { static void sctlr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) { + ARMCPU *cpu = arm_env_get_cpu(env); + env->cp15.c1_sys = value; /* ??? Lots of these bits are not implemented. */ /* This may enable/disable the MMU, so do a TLB flush. */ - tlb_flush(env, 1); + tlb_flush(CPU(cpu), 1); } static CPAccessResult ctr_el0_access(CPUARMState *env, const ARMCPRegInfo *ri) |