diff --git a/target/ppc/mmu-book3s-v3.h b/target/ppc/mmu-book3s-v3.h
index a1326df969..035c369c06 100644
--- a/target/ppc/mmu-book3s-v3.h
+++ b/target/ppc/mmu-book3s-v3.h
@@ -22,6 +22,14 @@
 
 #include "mmu-hash64.h"
 
+/*
+ * These correspond to the mmu_idx values computed in
+ * hreg_compute_hflags_value. See the tables therein
+ */
+static inline bool mmuidx_pr(int idx) { return !(idx & 1); }
+static inline bool mmuidx_real(int idx) { return idx & 2; }
+static inline bool mmuidx_hv(int idx) { return idx & 4; }
+
 #ifndef CONFIG_USER_ONLY
 
 /*
diff --git a/target/ppc/mmu-radix64.c b/target/ppc/mmu-radix64.c
index cbd404bfa4..346239daaa 100644
--- a/target/ppc/mmu-radix64.c
+++ b/target/ppc/mmu-radix64.c
@@ -155,7 +155,7 @@ static void ppc_radix64_raise_hsi(PowerPCCPU *cpu, MMUAccessType access_type,
 
 static bool ppc_radix64_check_prot(PowerPCCPU *cpu, MMUAccessType access_type,
                                    uint64_t pte, int *fault_cause, int *prot,
-                                   bool partition_scoped)
+                                   int mmu_idx, bool partition_scoped)
 {
     CPUPPCState *env = &cpu->env;
     int need_prot;
@@ -173,7 +173,8 @@ static bool ppc_radix64_check_prot(PowerPCCPU *cpu, MMUAccessType access_type,
     /* Determine permissions allowed by Encoded Access Authority */
     if (!partition_scoped && (pte & R_PTE_EAA_PRIV) && msr_pr) {
         *prot = 0;
-    } else if (msr_pr || (pte & R_PTE_EAA_PRIV) || partition_scoped) {
+    } else if (mmuidx_pr(mmu_idx) || (pte & R_PTE_EAA_PRIV) ||
+               partition_scoped) {
         *prot = ppc_radix64_get_prot_eaa(pte);
     } else { /* !msr_pr && !(pte & R_PTE_EAA_PRIV) && !partition_scoped */
         *prot = ppc_radix64_get_prot_eaa(pte);
@@ -299,7 +300,7 @@ static int ppc_radix64_partition_scoped_xlate(PowerPCCPU *cpu,
                                               ppc_v3_pate_t pate,
                                               hwaddr *h_raddr, int *h_prot,
                                               int *h_page_size, bool pde_addr,
-                                              bool guest_visible)
+                                              int mmu_idx, bool guest_visible)
 {
     int fault_cause = 0;
     hwaddr pte_addr;
@@ -310,7 +311,9 @@ static int ppc_radix64_partition_scoped_xlate(PowerPCCPU *cpu,
     if (ppc_radix64_walk_tree(CPU(cpu)->as, g_raddr, pate.dw0 & PRTBE_R_RPDB,
                               pate.dw0 & PRTBE_R_RPDS, h_raddr, h_page_size,
                               &pte, &fault_cause, &pte_addr) ||
-        ppc_radix64_check_prot(cpu, access_type, pte, &fault_cause, h_prot, true)) {
+        ppc_radix64_check_prot(cpu, access_type, pte,
+                               &fault_cause, h_prot, mmu_idx, true)
+        ) {
         if (pde_addr) { /* address being translated was that of a guest pde */
             fault_cause |= DSISR_PRTABLE_FAULT;
         }
@@ -332,7 +335,7 @@ static int ppc_radix64_process_scoped_xlate(PowerPCCPU *cpu,
                                             vaddr eaddr, uint64_t pid,
                                             ppc_v3_pate_t pate, hwaddr *g_raddr,
                                             int *g_prot, int *g_page_size,
-                                            bool guest_visible)
+                                            int mmu_idx, bool guest_visible)
 {
     CPUState *cs = CPU(cpu);
     CPUPPCState *env = &cpu->env;
@@ -367,7 +370,8 @@ static int ppc_radix64_process_scoped_xlate(PowerPCCPU *cpu,
         ret = ppc_radix64_partition_scoped_xlate(cpu, 0, eaddr, prtbe_addr,
                                                  pate, &h_raddr, &h_prot,
                                                  &h_page_size, true,
-                                                 guest_visible);
+            /* mmu_idx is 5 because we're translating from hypervisor scope */
+                                                 5, guest_visible);
         if (ret) {
             return ret;
         }
@@ -407,7 +411,8 @@ static int ppc_radix64_process_scoped_xlate(PowerPCCPU *cpu,
             ret = ppc_radix64_partition_scoped_xlate(cpu, 0, eaddr, pte_addr,
                                                      pate, &h_raddr, &h_prot,
                                                      &h_page_size, true,
-                                                     guest_visible);
+            /* mmu_idx is 5 because we're translating from hypervisor scope */
+                                                     5, guest_visible);
             if (ret) {
                 return ret;
             }
@@ -431,7 +436,8 @@ static int ppc_radix64_process_scoped_xlate(PowerPCCPU *cpu,
         *g_raddr = (rpn & ~mask) | (eaddr & mask);
     }
 
-    if (ppc_radix64_check_prot(cpu, access_type, pte, &fault_cause, g_prot, false)) {
+    if (ppc_radix64_check_prot(cpu, access_type, pte, &fault_cause,
+                               g_prot, mmu_idx, false)) {
         /* Access denied due to protection */
         if (guest_visible) {
             ppc_radix64_raise_si(cpu, access_type, eaddr, fault_cause);
@@ -464,7 +470,7 @@ static int ppc_radix64_process_scoped_xlate(PowerPCCPU *cpu,
  *              +-------------+----------------+---------------+
  */
 bool ppc_radix64_xlate(PowerPCCPU *cpu, vaddr eaddr, MMUAccessType access_type,
-                       hwaddr *raddr, int *psizep, int *protp,
+                       hwaddr *raddr, int *psizep, int *protp, int mmu_idx,
                        bool guest_visible)
 {
     CPUPPCState *env = &cpu->env;
@@ -474,17 +480,17 @@ bool ppc_radix64_xlate(PowerPCCPU *cpu, vaddr eaddr, MMUAccessType access_type,
     hwaddr g_raddr;
     bool relocation;
 
-    assert(!(msr_hv && cpu->vhyp));
+    assert(!(mmuidx_hv(mmu_idx) && cpu->vhyp));
 
-    relocation = (access_type == MMU_INST_FETCH ? msr_ir : msr_dr);
+    relocation = !mmuidx_real(mmu_idx);
 
     /* HV or virtual hypervisor Real Mode Access */
-    if (!relocation && (msr_hv || cpu->vhyp)) {
+    if (!relocation && (mmuidx_hv(mmu_idx) || cpu->vhyp)) {
         /* In real mode top 4 effective addr bits (mostly) ignored */
         *raddr = eaddr & 0x0FFFFFFFFFFFFFFFULL;
 
         /* In HV mode, add HRMOR if top EA bit is clear */
-        if (msr_hv || !env->has_hv_mode) {
+        if (mmuidx_hv(mmu_idx) || !env->has_hv_mode) {
             if (!(eaddr >> 63)) {
                 *raddr |= env->spr[SPR_HRMOR];
            }
@@ -546,7 +552,7 @@ bool ppc_radix64_xlate(PowerPCCPU *cpu, vaddr eaddr, MMUAccessType access_type,
     if (relocation) {
         int ret = ppc_radix64_process_scoped_xlate(cpu, access_type, eaddr, pid,
                                                    pate, &g_raddr, &prot,
-                                                   &psize, guest_visible);
+                                                   &psize, mmu_idx, guest_visible);
         if (ret) {
             return false;
         }
@@ -564,13 +570,13 @@ bool ppc_radix64_xlate(PowerPCCPU *cpu, vaddr eaddr, MMUAccessType access_type,
          * quadrants 1 or 2. Translates a guest real address to a host
          * real address.
          */
-        if (lpid || !msr_hv) {
+        if (lpid || !mmuidx_hv(mmu_idx)) {
             int ret;
 
             ret = ppc_radix64_partition_scoped_xlate(cpu, access_type, eaddr,
                                                      g_raddr, pate, raddr,
                                                      &prot, &psize, false,
-                                                     guest_visible);
+                                                     mmu_idx, guest_visible);
             if (ret) {
                 return false;
             }
diff --git a/target/ppc/mmu-radix64.h b/target/ppc/mmu-radix64.h
index 6b13b89b64..b70357cf34 100644
--- a/target/ppc/mmu-radix64.h
+++ b/target/ppc/mmu-radix64.h
@@ -45,7 +45,7 @@
 #ifdef TARGET_PPC64
 
 bool ppc_radix64_xlate(PowerPCCPU *cpu, vaddr eaddr, MMUAccessType access_type,
-                       hwaddr *raddr, int *psizep, int *protp,
+                       hwaddr *raddr, int *psizep, int *protp, int mmu_idx,
                        bool guest_visible);
 
 static inline int ppc_radix64_get_prot_eaa(uint64_t pte)
diff --git a/target/ppc/mmu_helper.c b/target/ppc/mmu_helper.c
index ba1952c77d..9dcdf88597 100644
--- a/target/ppc/mmu_helper.c
+++ b/target/ppc/mmu_helper.c
@@ -2908,7 +2908,7 @@ static bool ppc_xlate(PowerPCCPU *cpu, vaddr eaddr, MMUAccessType access_type,
     case POWERPC_MMU_3_00:
         if (ppc64_v3_radix(cpu)) {
             return ppc_radix64_xlate(cpu, eaddr, access_type,
-                                     raddrp, psizep, protp, guest_visible);
+                                     raddrp, psizep, protp, mmu_idx, guest_visible);
         }
         /* fall through */
     case POWERPC_MMU_64B:
@@ -2941,8 +2941,10 @@ hwaddr ppc_cpu_get_phys_page_debug(CPUState *cs, vaddr addr)
      * try an MMU_DATA_LOAD, we may not be able to read instructions
      * mapped by code TLBs, so we also try a MMU_INST_FETCH.
      */
-    if (ppc_xlate(cpu, addr, MMU_DATA_LOAD, &raddr, &s, &p, 0, false) ||
-        ppc_xlate(cpu, addr, MMU_INST_FETCH, &raddr, &s, &p, 0, false)) {
+    if (ppc_xlate(cpu, addr, MMU_DATA_LOAD, &raddr, &s, &p,
+                  cpu_mmu_index(&cpu->env, false), false) ||
+        ppc_xlate(cpu, addr, MMU_INST_FETCH, &raddr, &s, &p,
+                  cpu_mmu_index(&cpu->env, true), false)) {
         return raddr & TARGET_PAGE_MASK;
     }
     return -1;
