25 files changed, 100 insertions, 87 deletions

diff --git a/include/exec/cpu-common.h b/include/exec/cpu-common.h
index aaee995..9ac1eaf 100644
--- a/include/exec/cpu-common.h
+++ b/include/exec/cpu-common.h
@@ -23,12 +23,6 @@ typedef struct CPUListState {
     FILE *file;
 } CPUListState;
 
-typedef enum MMUAccessType {
-    MMU_DATA_LOAD  = 0,
-    MMU_DATA_STORE = 1,
-    MMU_INST_FETCH = 2
-} MMUAccessType;
-
 #if !defined(CONFIG_USER_ONLY)
 
 enum device_endian {
diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h
index c1f59fa..db79ab6 100644
--- a/include/exec/exec-all.h
+++ b/include/exec/exec-all.h
@@ -361,8 +361,8 @@ extern uintptr_t tci_tb_ptr;
 struct MemoryRegion *iotlb_to_region(CPUState *cpu,
                                      hwaddr index, MemTxAttrs attrs);
 
-void tlb_fill(CPUState *cpu, target_ulong addr, int is_write, int mmu_idx,
-              uintptr_t retaddr);
+void tlb_fill(CPUState *cpu, target_ulong addr, MMUAccessType access_type,
+              int mmu_idx, uintptr_t retaddr);
 
 #endif
 
diff --git a/include/qom/cpu.h b/include/qom/cpu.h
index cacb100..a6c6ed8 100644
--- a/include/qom/cpu.h
+++ b/include/qom/cpu.h
@@ -60,6 +60,12 @@ typedef uint64_t vaddr;
 #define CPU_CLASS(class) OBJECT_CLASS_CHECK(CPUClass, (class), TYPE_CPU)
 #define CPU_GET_CLASS(obj) OBJECT_GET_CLASS(CPUClass, (obj), TYPE_CPU)
 
+typedef enum MMUAccessType {
+    MMU_DATA_LOAD  = 0,
+    MMU_DATA_STORE = 1,
+    MMU_INST_FETCH = 2
+} MMUAccessType;
+
 typedef struct CPUWatchpoint CPUWatchpoint;
 
 typedef void (*CPUUnassignedAccess)(CPUState *cpu, hwaddr addr,
@@ -142,7 +148,8 @@ typedef struct CPUClass {
     void (*do_interrupt)(CPUState *cpu);
     CPUUnassignedAccess do_unassigned_access;
     void (*do_unaligned_access)(CPUState *cpu, vaddr addr,
-                                int is_write, int is_user, uintptr_t retaddr);
+                                MMUAccessType access_type,
+                                int mmu_idx, uintptr_t retaddr);
     bool (*virtio_is_big_endian)(CPUState *cpu);
     int (*memory_rw_debug)(CPUState *cpu, vaddr addr,
                            uint8_t *buf, int len, bool is_write);
@@ -716,12 +723,12 @@ static inline void cpu_unassigned_access(CPUState *cpu, hwaddr addr,
 }
 
 static inline void cpu_unaligned_access(CPUState *cpu, vaddr addr,
-                                        int is_write, int is_user,
-                                        uintptr_t retaddr)
+                                        MMUAccessType access_type,
+                                        int mmu_idx, uintptr_t retaddr)
 {
     CPUClass *cc = CPU_GET_CLASS(cpu);
 
-    cc->do_unaligned_access(cpu, addr, is_write, is_user, retaddr);
+    cc->do_unaligned_access(cpu, addr, access_type, mmu_idx, retaddr);
 }
 #endif
 
diff --git a/target-alpha/cpu.h b/target-alpha/cpu.h
index ce8d296..791da3b 100644
--- a/target-alpha/cpu.h
+++ b/target-alpha/cpu.h
@@ -323,7 +323,8 @@ hwaddr alpha_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr);
 int alpha_cpu_gdb_read_register(CPUState *cpu, uint8_t *buf, int reg);
 int alpha_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
 void alpha_cpu_do_unaligned_access(CPUState *cpu, vaddr addr,
-                                   int is_write, int is_user, uintptr_t retaddr);
+                                   MMUAccessType access_type,
+                                   int mmu_idx, uintptr_t retaddr);
 
 #define cpu_list alpha_cpu_list
 #define cpu_signal_handler cpu_alpha_signal_handler
diff --git a/target-alpha/mem_helper.c b/target-alpha/mem_helper.c
index 7f4d15f..1b2be50 100644
--- a/target-alpha/mem_helper.c
+++ b/target-alpha/mem_helper.c
@@ -99,7 +99,8 @@ uint64_t helper_stq_c_phys(CPUAlphaState *env, uint64_t p, uint64_t v)
 }
 
 void alpha_cpu_do_unaligned_access(CPUState *cs, vaddr addr,
-                                   int is_write, int is_user, uintptr_t retaddr)
+                                   MMUAccessType access_type,
+                                   int mmu_idx, uintptr_t retaddr)
 {
     AlphaCPU *cpu = ALPHA_CPU(cs);
     CPUAlphaState *env = &cpu->env;
@@ -144,12 +145,12 @@ void alpha_cpu_unassigned_access(CPUState *cs, hwaddr addr,
    NULL, it means that the function was called in C code (i.e. not
    from generated code or from helper.c) */
 /* XXX: fix it to restore all registers */
-void tlb_fill(CPUState *cs, target_ulong addr, int is_write,
+void tlb_fill(CPUState *cs, target_ulong addr, MMUAccessType access_type,
               int mmu_idx, uintptr_t retaddr)
 {
     int ret;
 
-    ret = alpha_cpu_handle_mmu_fault(cs, addr, is_write, mmu_idx);
+    ret = alpha_cpu_handle_mmu_fault(cs, addr, access_type, mmu_idx);
     if (unlikely(ret != 0)) {
         if (retaddr) {
             cpu_restore_state(cs, retaddr);
diff --git a/target-arm/internals.h b/target-arm/internals.h
index 466be0b..cd57401 100644
--- a/target-arm/internals.h
+++ b/target-arm/internals.h
@@ -476,8 +476,9 @@ bool arm_tlb_fill(CPUState *cpu, vaddr address, int rw, int mmu_idx,
 bool arm_s1_regime_using_lpae_format(CPUARMState *env, ARMMMUIdx mmu_idx);
 
 /* Raise a data fault alignment exception for the specified virtual address */
-void arm_cpu_do_unaligned_access(CPUState *cs, vaddr vaddr, int is_write,
-                                 int is_user, uintptr_t retaddr);
+void arm_cpu_do_unaligned_access(CPUState *cs, vaddr vaddr,
+                                 MMUAccessType access_type,
+                                 int mmu_idx, uintptr_t retaddr);
 
 /* Call the EL change hook if one has been registered */
 static inline void arm_call_el_change_hook(ARMCPU *cpu)
diff --git a/target-arm/op_helper.c b/target-arm/op_helper.c
index 73da759..3e8588e 100644
--- a/target-arm/op_helper.c
+++ b/target-arm/op_helper.c
@@ -79,7 +79,7 @@ uint32_t HELPER(neon_tbl)(CPUARMState *env, uint32_t ireg, uint32_t def,
 static inline uint32_t merge_syn_data_abort(uint32_t template_syn,
                                             unsigned int target_el,
                                             bool same_el,
-                                            bool s1ptw, int is_write,
+                                            bool s1ptw, bool is_write,
                                             int fsc)
 {
     uint32_t syn;
@@ -97,7 +97,7 @@ static inline uint32_t merge_syn_data_abort(uint32_t template_syn,
      */
     if (!(template_syn & ARM_EL_ISV) || target_el != 2 || s1ptw) {
         syn = syn_data_abort_no_iss(same_el,
-                                    0, 0, s1ptw, is_write == 1, fsc);
+                                    0, 0, s1ptw, is_write, fsc);
     } else {
         /* Fields: IL, ISV, SAS, SSE, SRT, SF and AR come from the template
          * syndrome created at translation time.
@@ -105,7 +105,7 @@ static inline uint32_t merge_syn_data_abort(uint32_t template_syn,
          */
         syn = syn_data_abort_with_iss(same_el,
                                       0, 0, 0, 0, 0,
-                                      0, 0, s1ptw, is_write == 1, fsc,
+                                      0, 0, s1ptw, is_write, fsc,
                                       false);
         /* Merge the runtime syndrome with the template syndrome.  */
         syn |= template_syn;
@@ -117,14 +117,14 @@ static inline uint32_t merge_syn_data_abort(uint32_t template_syn,
  * NULL, it means that the function was called in C code (i.e. not
  * from generated code or from helper.c)
  */
-void tlb_fill(CPUState *cs, target_ulong addr, int is_write, int mmu_idx,
-              uintptr_t retaddr)
+void tlb_fill(CPUState *cs, target_ulong addr, MMUAccessType access_type,
+              int mmu_idx, uintptr_t retaddr)
 {
     bool ret;
     uint32_t fsr = 0;
     ARMMMUFaultInfo fi = {};
 
-    ret = arm_tlb_fill(cs, addr, is_write, mmu_idx, &fsr, &fi);
+    ret = arm_tlb_fill(cs, addr, access_type, mmu_idx, &fsr, &fi);
     if (unlikely(ret)) {
         ARMCPU *cpu = ARM_CPU(cs);
         CPUARMState *env = &cpu->env;
@@ -149,13 +149,15 @@ void tlb_fill(CPUState *cs, target_ulong addr, int is_write, int mmu_idx,
         /* For insn and data aborts we assume there is no instruction syndrome
          * information; this is always true for exceptions reported to EL1.
          */
-        if (is_write == 2) {
+        if (access_type == MMU_INST_FETCH) {
             syn = syn_insn_abort(same_el, 0, fi.s1ptw, syn);
             exc = EXCP_PREFETCH_ABORT;
         } else {
             syn = merge_syn_data_abort(env->exception.syndrome, target_el,
-                                       same_el, fi.s1ptw, is_write, syn);
-            if (is_write == 1 && arm_feature(env, ARM_FEATURE_V6)) {
+                                       same_el, fi.s1ptw,
+                                       access_type == MMU_DATA_STORE, syn);
+            if (access_type == MMU_DATA_STORE
+                && arm_feature(env, ARM_FEATURE_V6)) {
                 fsr |= (1 << 11);
             }
             exc = EXCP_DATA_ABORT;
@@ -168,8 +170,9 @@ void tlb_fill(CPUState *cs, target_ulong addr, int is_write, int mmu_idx,
 }
 
 /* Raise a data fault alignment exception for the specified virtual address */
-void arm_cpu_do_unaligned_access(CPUState *cs, vaddr vaddr, int is_write,
-                                 int is_user, uintptr_t retaddr)
+void arm_cpu_do_unaligned_access(CPUState *cs, vaddr vaddr,
+                                 MMUAccessType access_type,
+                                 int mmu_idx, uintptr_t retaddr)
 {
     ARMCPU *cpu = ARM_CPU(cs);
     CPUARMState *env = &cpu->env;
@@ -196,12 +199,13 @@ void arm_cpu_do_unaligned_access(CPUState *cs, vaddr vaddr, int is_write,
         env->exception.fsr = 0x1;
     }
 
-    if (is_write == 1 && arm_feature(env, ARM_FEATURE_V6)) {
+    if (access_type == MMU_DATA_STORE && arm_feature(env, ARM_FEATURE_V6)) {
         env->exception.fsr |= (1 << 11);
     }
 
     syn = merge_syn_data_abort(env->exception.syndrome, target_el,
-                               same_el, 0, is_write, 0x21);
+                               same_el, 0, access_type == MMU_DATA_STORE,
+                               0x21);
     raise_exception(env, EXCP_DATA_ABORT, syn, target_el);
 }
 
diff --git a/target-cris/op_helper.c b/target-cris/op_helper.c
index 675ab86..5043039 100644
--- a/target-cris/op_helper.c
+++ b/target-cris/op_helper.c
@@ -41,8 +41,8 @@
 /* Try to fill the TLB and return an exception if error. If retaddr is
    NULL, it means that the function was called in C code (i.e. not
    from generated code or from helper.c) */
-void tlb_fill(CPUState *cs, target_ulong addr, int is_write, int mmu_idx,
-              uintptr_t retaddr)
+void tlb_fill(CPUState *cs, target_ulong addr, MMUAccessType access_type,
+              int mmu_idx, uintptr_t retaddr)
 {
     CRISCPU *cpu = CRIS_CPU(cs);
     CPUCRISState *env = &cpu->env;
@@ -50,7 +50,7 @@ void tlb_fill(CPUState *cs, target_ulong addr, int is_write, int mmu_idx,
 
     D_LOG("%s pc=%x tpc=%x ra=%p\n", __func__,
           env->pc, env->pregs[PR_EDA], (void *)retaddr);
-    ret = cris_cpu_handle_mmu_fault(cs, addr, is_write, mmu_idx);
+    ret = cris_cpu_handle_mmu_fault(cs, addr, access_type, mmu_idx);
     if (unlikely(ret)) {
         if (retaddr) {
             /* now we have a real cpu fault */
diff --git a/target-i386/mem_helper.c b/target-i386/mem_helper.c
index c2f4769..5bc0594 100644
--- a/target-i386/mem_helper.c
+++ b/target-i386/mem_helper.c
@@ -140,12 +140,12 @@ void helper_boundl(CPUX86State *env, target_ulong a0, int v)
  * from generated code or from helper.c)
  */
 /* XXX: fix it to restore all registers */
-void tlb_fill(CPUState *cs, target_ulong addr, int is_write, int mmu_idx,
-              uintptr_t retaddr)
+void tlb_fill(CPUState *cs, target_ulong addr, MMUAccessType access_type,
+              int mmu_idx, uintptr_t retaddr)
 {
     int ret;
 
-    ret = x86_cpu_handle_mmu_fault(cs, addr, is_write, mmu_idx);
+    ret = x86_cpu_handle_mmu_fault(cs, addr, access_type, mmu_idx);
     if (ret) {
         X86CPU *cpu = X86_CPU(cs);
         CPUX86State *env = &cpu->env;
diff --git a/target-lm32/op_helper.c b/target-lm32/op_helper.c
index 7a550d1..2177c8a 100644
--- a/target-lm32/op_helper.c
+++ b/target-lm32/op_helper.c
@@ -144,12 +144,12 @@ uint32_t HELPER(rcsr_jrx)(CPULM32State *env)
  * NULL, it means that the function was called in C code (i.e. not
  * from generated code or from helper.c)
  */
-void tlb_fill(CPUState *cs, target_ulong addr, int is_write, int mmu_idx,
-              uintptr_t retaddr)
+void tlb_fill(CPUState *cs, target_ulong addr, MMUAccessType access_type,
+              int mmu_idx, uintptr_t retaddr)
 {
     int ret;
 
-    ret = lm32_cpu_handle_mmu_fault(cs, addr, is_write, mmu_idx);
+    ret = lm32_cpu_handle_mmu_fault(cs, addr, access_type, mmu_idx);
     if (unlikely(ret)) {
         if (retaddr) {
             /* now we have a real cpu fault */
diff --git a/target-m68k/op_helper.c b/target-m68k/op_helper.c
index ff32e35..e41ae46 100644
--- a/target-m68k/op_helper.c
+++ b/target-m68k/op_helper.c
@@ -39,12 +39,12 @@ static inline void do_interrupt_m68k_hardirq(CPUM68KState *env)
 /* Try to fill the TLB and return an exception if error. If retaddr is
    NULL, it means that the function was called in C code (i.e. not
    from generated code or from helper.c) */
-void tlb_fill(CPUState *cs, target_ulong addr, int is_write, int mmu_idx,
-              uintptr_t retaddr)
+void tlb_fill(CPUState *cs, target_ulong addr, MMUAccessType access_type,
+              int mmu_idx, uintptr_t retaddr)
 {
     int ret;
 
-    ret = m68k_cpu_handle_mmu_fault(cs, addr, is_write, mmu_idx);
+    ret = m68k_cpu_handle_mmu_fault(cs, addr, access_type, mmu_idx);
     if (unlikely(ret)) {
         if (retaddr) {
             /* now we have a real cpu fault */
diff --git a/target-microblaze/op_helper.c b/target-microblaze/op_helper.c
index 74a043c..4a856e6 100644
--- a/target-microblaze/op_helper.c
+++ b/target-microblaze/op_helper.c
@@ -33,12 +33,12 @@
  * NULL, it means that the function was called in C code (i.e. not
  * from generated code or from helper.c)
  */
-void tlb_fill(CPUState *cs, target_ulong addr, int is_write, int mmu_idx,
-              uintptr_t retaddr)
+void tlb_fill(CPUState *cs, target_ulong addr, MMUAccessType access_type,
+              int mmu_idx, uintptr_t retaddr)
 {
     int ret;
 
-    ret = mb_cpu_handle_mmu_fault(cs, addr, is_write, mmu_idx);
+    ret = mb_cpu_handle_mmu_fault(cs, addr, access_type, mmu_idx);
     if (unlikely(ret)) {
         if (retaddr) {
             /* now we have a real cpu fault */
diff --git a/target-mips/cpu.h b/target-mips/cpu.h
index 2c45839..9c4fc81 100644
--- a/target-mips/cpu.h
+++ b/target-mips/cpu.h
@@ -657,7 +657,8 @@ hwaddr mips_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr);
 int mips_cpu_gdb_read_register(CPUState *cpu, uint8_t *buf, int reg);
 int mips_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
 void mips_cpu_do_unaligned_access(CPUState *cpu, vaddr addr,
-                                  int is_write, int is_user, uintptr_t retaddr);
+                                  MMUAccessType access_type,
+                                  int mmu_idx, uintptr_t retaddr);
 
 #if !defined(CONFIG_USER_ONLY)
 int no_mmu_map_address (CPUMIPSState *env, hwaddr *physical, int *prot,
diff --git a/target-mips/op_helper.c b/target-mips/op_helper.c
index 31c85f9..ea2f2ab 100644
--- a/target-mips/op_helper.c
+++ b/target-mips/op_helper.c
@@ -2384,8 +2384,8 @@ void helper_wait(CPUMIPSState *env)
 #if !defined(CONFIG_USER_ONLY)
 
 void mips_cpu_do_unaligned_access(CPUState *cs, vaddr addr,
-                                  int access_type, int is_user,
-                                  uintptr_t retaddr)
+                                  MMUAccessType access_type,
+                                  int mmu_idx, uintptr_t retaddr)
 {
     MIPSCPU *cpu = MIPS_CPU(cs);
     CPUMIPSState *env = &cpu->env;
@@ -2406,12 +2406,12 @@ void mips_cpu_do_unaligned_access(CPUState *cs, vaddr addr,
     do_raise_exception_err(env, excp, error_code, retaddr);
 }
 
-void tlb_fill(CPUState *cs, target_ulong addr, int is_write, int mmu_idx,
-              uintptr_t retaddr)
+void tlb_fill(CPUState *cs, target_ulong addr, MMUAccessType access_type,
+              int mmu_idx, uintptr_t retaddr)
 {
     int ret;
 
-    ret = mips_cpu_handle_mmu_fault(cs, addr, is_write, mmu_idx);
+    ret = mips_cpu_handle_mmu_fault(cs, addr, access_type, mmu_idx);
     if (ret) {
         MIPSCPU *cpu = MIPS_CPU(cs);
         CPUMIPSState *env = &cpu->env;
diff --git a/target-moxie/helper.c b/target-moxie/helper.c
index d51e9b9..330299f 100644
--- a/target-moxie/helper.c
+++ b/target-moxie/helper.c
@@ -29,12 +29,12 @@
 /* Try to fill the TLB and return an exception if error. If retaddr is
    NULL, it means that the function was called in C code (i.e. not
    from generated code or from helper.c) */
-void tlb_fill(CPUState *cs, target_ulong addr, int is_write, int mmu_idx,
-              uintptr_t retaddr)
+void tlb_fill(CPUState *cs, target_ulong addr, MMUAccessType access_type,
+              int mmu_idx, uintptr_t retaddr)
 {
     int ret;
 
-    ret = moxie_cpu_handle_mmu_fault(cs, addr, is_write, mmu_idx);
+    ret = moxie_cpu_handle_mmu_fault(cs, addr, access_type, mmu_idx);
     if (unlikely(ret)) {
         if (retaddr) {
             cpu_restore_state(cs, retaddr);
diff --git a/target-openrisc/mmu_helper.c b/target-openrisc/mmu_helper.c
index c0658c3..a44d0aa 100644
--- a/target-openrisc/mmu_helper.c
+++ b/target-openrisc/mmu_helper.c
@@ -25,12 +25,12 @@
 
 #ifndef CONFIG_USER_ONLY
 
-void tlb_fill(CPUState *cs, target_ulong addr, int is_write,
+void tlb_fill(CPUState *cs, target_ulong addr, MMUAccessType access_type,
               int mmu_idx, uintptr_t retaddr)
 {
     int ret;
 
-    ret = openrisc_cpu_handle_mmu_fault(cs, addr, is_write, mmu_idx);
+    ret = openrisc_cpu_handle_mmu_fault(cs, addr, access_type, mmu_idx);
 
     if (ret) {
         if (retaddr) {
diff --git a/target-ppc/mmu_helper.c b/target-ppc/mmu_helper.c
index 485d5b8..3eb3cd7 100644
--- a/target-ppc/mmu_helper.c
+++ b/target-ppc/mmu_helper.c
@@ -2878,8 +2878,8 @@ void helper_check_tlb_flush(CPUPPCState *env)
    NULL, it means that the function was called in C code (i.e. not
    from generated code or from helper.c) */
 /* XXX: fix it to restore all registers */
-void tlb_fill(CPUState *cs, target_ulong addr, int is_write, int mmu_idx,
-              uintptr_t retaddr)
+void tlb_fill(CPUState *cs, target_ulong addr, MMUAccessType access_type,
+              int mmu_idx, uintptr_t retaddr)
 {
     PowerPCCPU *cpu = POWERPC_CPU(cs);
     PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cs);
@@ -2887,9 +2887,9 @@ void tlb_fill(CPUState *cs, target_ulong addr, int is_write, int mmu_idx,
     int ret;
 
     if (pcc->handle_mmu_fault) {
-        ret = pcc->handle_mmu_fault(cpu, addr, is_write, mmu_idx);
+        ret = pcc->handle_mmu_fault(cpu, addr, access_type, mmu_idx);
     } else {
-        ret = cpu_ppc_handle_mmu_fault(env, addr, is_write, mmu_idx);
+        ret = cpu_ppc_handle_mmu_fault(env, addr, access_type, mmu_idx);
     }
     if (unlikely(ret != 0)) {
         if (likely(retaddr)) {
diff --git a/target-s390x/mem_helper.c b/target-s390x/mem_helper.c
index ec8059a..99bc5e2 100644
--- a/target-s390x/mem_helper.c
+++ b/target-s390x/mem_helper.c
@@ -36,12 +36,12 @@
    NULL, it means that the function was called in C code (i.e. not
    from generated code or from helper.c) */
 /* XXX: fix it to restore all registers */
-void tlb_fill(CPUState *cs, target_ulong addr, int is_write, int mmu_idx,
-              uintptr_t retaddr)
+void tlb_fill(CPUState *cs, target_ulong addr, MMUAccessType access_type,
+              int mmu_idx, uintptr_t retaddr)
 {
     int ret;
 
-    ret = s390_cpu_handle_mmu_fault(cs, addr, is_write, mmu_idx);
+    ret = s390_cpu_handle_mmu_fault(cs, addr, access_type, mmu_idx);
     if (unlikely(ret != 0)) {
         if (likely(retaddr)) {
             /* now we have a real cpu fault */
diff --git a/target-sh4/op_helper.c b/target-sh4/op_helper.c
index 303e83e..0204b03 100644
--- a/target-sh4/op_helper.c
+++ b/target-sh4/op_helper.c
@@ -24,12 +24,12 @@
 
 #ifndef CONFIG_USER_ONLY
 
-void tlb_fill(CPUState *cs, target_ulong addr, int is_write, int mmu_idx,
-              uintptr_t retaddr)
+void tlb_fill(CPUState *cs, target_ulong addr, MMUAccessType access_type,
+              int mmu_idx, uintptr_t retaddr)
 {
     int ret;
 
-    ret = superh_cpu_handle_mmu_fault(cs, addr, is_write, mmu_idx);
+    ret = superh_cpu_handle_mmu_fault(cs, addr, access_type, mmu_idx);
     if (ret) {
         /* now we have a real cpu fault */
         if (retaddr) {
diff --git a/target-sparc/cpu.h b/target-sparc/cpu.h
index f78fabf..604de84 100644
--- a/target-sparc/cpu.h
+++ b/target-sparc/cpu.h
@@ -540,9 +540,10 @@ void sparc_cpu_dump_state(CPUState *cpu, FILE *f,
 hwaddr sparc_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr);
 int sparc_cpu_gdb_read_register(CPUState *cpu, uint8_t *buf, int reg);
 int sparc_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
-void QEMU_NORETURN sparc_cpu_do_unaligned_access(CPUState *cpu,
-                                                 vaddr addr, int is_write,
-                                                 int is_user, uintptr_t retaddr);
+void QEMU_NORETURN sparc_cpu_do_unaligned_access(CPUState *cpu, vaddr addr,
+                                                 MMUAccessType access_type,
+                                                 int mmu_idx,
+                                                 uintptr_t retaddr);
 
 #ifndef NO_CPU_IO_DEFS
 /* cpu_init.c */
diff --git a/target-sparc/ldst_helper.c b/target-sparc/ldst_helper.c
index f73cf6d..e941cac 100644
--- a/target-sparc/ldst_helper.c
+++ b/target-sparc/ldst_helper.c
@@ -2420,9 +2420,10 @@ void sparc_cpu_unassigned_access(CPUState *cs, hwaddr addr,
 #endif
 
 #if !defined(CONFIG_USER_ONLY)
-void QEMU_NORETURN sparc_cpu_do_unaligned_access(CPUState *cs,
-                                                 vaddr addr, int is_write,
-                                                 int is_user, uintptr_t retaddr)
+void QEMU_NORETURN sparc_cpu_do_unaligned_access(CPUState *cs, vaddr addr,
+                                                 MMUAccessType access_type,
+                                                 int mmu_idx,
+                                                 uintptr_t retaddr)
 {
     SPARCCPU *cpu = SPARC_CPU(cs);
     CPUSPARCState *env = &cpu->env;
@@ -2441,12 +2442,12 @@ void QEMU_NORETURN sparc_cpu_do_unaligned_access(CPUState *cs,
    NULL, it means that the function was called in C code (i.e. not
    from generated code or from helper.c) */
 /* XXX: fix it to restore all registers */
-void tlb_fill(CPUState *cs, target_ulong addr, int is_write, int mmu_idx,
-              uintptr_t retaddr)
+void tlb_fill(CPUState *cs, target_ulong addr, MMUAccessType access_type,
+              int mmu_idx, uintptr_t retaddr)
 {
     int ret;
 
-    ret = sparc_cpu_handle_mmu_fault(cs, addr, is_write, mmu_idx);
+    ret = sparc_cpu_handle_mmu_fault(cs, addr, access_type, mmu_idx);
     if (ret) {
         if (retaddr) {
             cpu_restore_state(cs, retaddr);
diff --git a/target-tricore/op_helper.c b/target-tricore/op_helper.c
index 3382a12..ac02e0a 100644
--- a/target-tricore/op_helper.c
+++ b/target-tricore/op_helper.c
@@ -2828,11 +2828,11 @@ static inline void QEMU_NORETURN do_raise_exception_err(CPUTriCoreState *env,
     cpu_loop_exit(cs);
 }
 
-void tlb_fill(CPUState *cs, target_ulong addr, int is_write, int mmu_idx,
-              uintptr_t retaddr)
+void tlb_fill(CPUState *cs, target_ulong addr, MMUAccessType access_type,
+              int mmu_idx, uintptr_t retaddr)
 {
     int ret;
-    ret = cpu_tricore_handle_mmu_fault(cs, addr, is_write, mmu_idx);
+    ret = cpu_tricore_handle_mmu_fault(cs, addr, access_type, mmu_idx);
     if (ret) {
         TriCoreCPU *cpu = TRICORE_CPU(cs);
         CPUTriCoreState *env = &cpu->env;
diff --git a/target-unicore32/op_helper.c b/target-unicore32/op_helper.c
index a782d33..0872c29 100644
--- a/target-unicore32/op_helper.c
+++ b/target-unicore32/op_helper.c
@@ -244,12 +244,12 @@ uint32_t HELPER(ror_cc)(CPUUniCore32State *env, uint32_t x, uint32_t i)
 }
 
 #ifndef CONFIG_USER_ONLY
-void tlb_fill(CPUState *cs, target_ulong addr, int is_write,
+void tlb_fill(CPUState *cs, target_ulong addr, MMUAccessType access_type,
               int mmu_idx, uintptr_t retaddr)
 {
     int ret;
 
-    ret = uc32_cpu_handle_mmu_fault(cs, addr, is_write, mmu_idx);
+    ret = uc32_cpu_handle_mmu_fault(cs, addr, access_type, mmu_idx);
     if (unlikely(ret)) {
         if (retaddr) {
             /* now we have a real cpu fault */
diff --git a/target-xtensa/cpu.h b/target-xtensa/cpu.h
index 8477ec9..ce9fb5b 100644
--- a/target-xtensa/cpu.h
+++ b/target-xtensa/cpu.h
@@ -414,7 +414,8 @@ hwaddr xtensa_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr);
 int xtensa_cpu_gdb_read_register(CPUState *cpu, uint8_t *buf, int reg);
 int xtensa_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
 void xtensa_cpu_do_unaligned_access(CPUState *cpu, vaddr addr,
-                                    int is_write, int is_user, uintptr_t retaddr);
+                                    MMUAccessType access_type,
+                                    int mmu_idx, uintptr_t retaddr);
 
 #define cpu_signal_handler cpu_xtensa_signal_handler
 #define cpu_list xtensa_cpu_list
diff --git a/target-xtensa/op_helper.c b/target-xtensa/op_helper.c
index bc3667f..0a4b214 100644
--- a/target-xtensa/op_helper.c
+++ b/target-xtensa/op_helper.c
@@ -35,7 +35,8 @@
 #include "qemu/timer.h"
 
 void xtensa_cpu_do_unaligned_access(CPUState *cs,
-        vaddr addr, int is_write, int is_user, uintptr_t retaddr)
+        vaddr addr, MMUAccessType access_type,
+        int mmu_idx, uintptr_t retaddr)
 {
     XtensaCPU *cpu = XTENSA_CPU(cs);
     CPUXtensaState *env = &cpu->env;
@@ -48,19 +49,19 @@ void xtensa_cpu_do_unaligned_access(CPUState *cs,
     }
 }
 
-void tlb_fill(CPUState *cs,
-              target_ulong vaddr, int is_write, int mmu_idx, uintptr_t retaddr)
+void tlb_fill(CPUState *cs, target_ulong vaddr, MMUAccessType access_type,
+              int mmu_idx, uintptr_t retaddr)
 {
     XtensaCPU *cpu = XTENSA_CPU(cs);
     CPUXtensaState *env = &cpu->env;
     uint32_t paddr;
     uint32_t page_size;
     unsigned access;
-    int ret = xtensa_get_physical_addr(env, true, vaddr, is_write, mmu_idx,
+    int ret = xtensa_get_physical_addr(env, true, vaddr, access_type, mmu_idx,
             &paddr, &page_size, &access);
 
     qemu_log_mask(CPU_LOG_MMU, "%s(%08x, %d, %d) -> %08x, ret = %d\n",
-                  __func__, vaddr, is_write, mmu_idx, paddr, ret);
+                  __func__, vaddr, access_type, mmu_idx, paddr, ret);
 
     if (ret == 0) {
         tlb_set_page(cs,