1 files changed, 45 insertions, 0 deletions
diff --git a/target/ppc/mmu-hash32.h b/target/ppc/mmu-hash32.h
index 7119a63d97..f0ce6951b4 100644
--- a/target/ppc/mmu-hash32.h
+++ b/target/ppc/mmu-hash32.h
@@ -102,6 +102,51 @@ static inline void ppc_hash32_store_hpte1(PowerPCCPU *cpu,
     stl_phys(CPU(cpu)->as, base + pte_offset + HASH_PTE_SIZE_32 / 2, pte1);
 }
 
+static inline int ppc_hash32_pp_prot(bool key, int pp, bool nx)
+{
+    int prot;
+
+    if (key == 0) {
+        switch (pp) {
+        case 0x0:
+        case 0x1:
+        case 0x2:
+            prot = PAGE_READ | PAGE_WRITE;
+            break;
+
+        case 0x3:
+            prot = PAGE_READ;
+            break;
+
+        default:
+            abort();
+        }
+    } else {
+        switch (pp) {
+        case 0x0:
+            prot = 0;
+            break;
+
+        case 0x1:
+        case 0x3:
+            prot = PAGE_READ;
+            break;
+
+        case 0x2:
+            prot = PAGE_READ | PAGE_WRITE;
+            break;
+
+        default:
+            abort();
+        }
+    }
+    if (nx == 0) {
+        prot |= PAGE_EXEC;
+    }
+
+    return prot;
+}
+
 typedef struct {
     uint32_t pte0, pte1;
 } ppc_hash_pte32_t;