aboutsummaryrefslogtreecommitdiff
path: root/target-ppc
diff options
context:
space:
mode:
Diffstat (limited to 'target-ppc')
-rw-r--r--target-ppc/cpu.h2
-rw-r--r--target-ppc/mmu-hash32.c29
-rw-r--r--target-ppc/mmu-hash32.h4
-rw-r--r--target-ppc/mmu-hash64.c19
-rw-r--r--target-ppc/mmu-hash64.h4
-rw-r--r--target-ppc/mmu_helper.c46
6 files changed, 58 insertions, 46 deletions
diff --git a/target-ppc/cpu.h b/target-ppc/cpu.h
index cf8ba2e..716ffe0 100644
--- a/target-ppc/cpu.h
+++ b/target-ppc/cpu.h
@@ -1137,6 +1137,8 @@ int pp_check(int key, int pp, int nx);
int check_prot(int prot, int rw, int access_type);
int pte_update_flags(mmu_ctx_t *ctx, target_ulong *pte1p, int ret, int rw);
hwaddr get_pteg_offset(CPUPPCState *env, hwaddr hash, int pte_size);
+int get_bat(CPUPPCState *env, mmu_ctx_t *ctx,
+ target_ulong virtual, int rw, int type);
#endif /* !defined(CONFIG_USER_ONLY) */
void ppc_store_msr (CPUPPCState *env, target_ulong value);
diff --git a/target-ppc/mmu-hash32.c b/target-ppc/mmu-hash32.c
index 4bae72a..3998d63 100644
--- a/target-ppc/mmu-hash32.c
+++ b/target-ppc/mmu-hash32.c
@@ -158,8 +158,8 @@ static int find_pte32(CPUPPCState *env, mmu_ctx_t *ctx, int h,
return ret;
}
-int get_segment32(CPUPPCState *env, mmu_ctx_t *ctx,
- target_ulong eaddr, int rw, int type)
+static int get_segment32(CPUPPCState *env, mmu_ctx_t *ctx,
+ target_ulong eaddr, int rw, int type)
{
hwaddr hash;
target_ulong vsid;
@@ -302,3 +302,28 @@ int get_segment32(CPUPPCState *env, mmu_ctx_t *ctx,
return ret;
}
+
+int ppc_hash32_get_physical_address(CPUPPCState *env, mmu_ctx_t *ctx,
+ target_ulong eaddr, int rw, int access_type)
+{
+ bool real_mode = (access_type == ACCESS_CODE && msr_ir == 0)
+ || (access_type != ACCESS_CODE && msr_dr == 0);
+
+ if (real_mode) {
+ ctx->raddr = eaddr;
+ ctx->prot = PAGE_READ | PAGE_EXEC | PAGE_WRITE;
+ return 0;
+ } else {
+ int ret = -1;
+
+ /* Try to find a BAT */
+ if (env->nb_BATs != 0) {
+ ret = get_bat(env, ctx, eaddr, rw, access_type);
+ }
+ if (ret < 0) {
+ /* We didn't match any BAT entry or don't have BATs */
+ ret = get_segment32(env, ctx, eaddr, rw, access_type);
+ }
+ return ret;
+ }
+}
diff --git a/target-ppc/mmu-hash32.h b/target-ppc/mmu-hash32.h
index 6f9a0c2..1318562 100644
--- a/target-ppc/mmu-hash32.h
+++ b/target-ppc/mmu-hash32.h
@@ -4,8 +4,8 @@
#ifndef CONFIG_USER_ONLY
int pte32_is_valid(target_ulong pte0);
-int get_segment32(CPUPPCState *env, mmu_ctx_t *ctx,
- target_ulong eaddr, int rw, int type);
+int ppc_hash32_get_physical_address(CPUPPCState *env, mmu_ctx_t *ctx,
+ target_ulong eaddr, int rw, int access_type);
#endif /* CONFIG_USER_ONLY */
diff --git a/target-ppc/mmu-hash64.c b/target-ppc/mmu-hash64.c
index 23eb480..c727298 100644
--- a/target-ppc/mmu-hash64.c
+++ b/target-ppc/mmu-hash64.c
@@ -350,8 +350,8 @@ static int find_pte64(CPUPPCState *env, mmu_ctx_t *ctx, int h,
return ret;
}
-int get_segment64(CPUPPCState *env, mmu_ctx_t *ctx,
- target_ulong eaddr, int rw, int type)
+static int get_segment64(CPUPPCState *env, mmu_ctx_t *ctx,
+ target_ulong eaddr, int rw, int type)
{
hwaddr hash;
target_ulong vsid;
@@ -435,3 +435,18 @@ int get_segment64(CPUPPCState *env, mmu_ctx_t *ctx,
return ret;
}
+
+int ppc_hash64_get_physical_address(CPUPPCState *env, mmu_ctx_t *ctx,
+ target_ulong eaddr, int rw, int access_type)
+{
+ bool real_mode = (access_type == ACCESS_CODE && msr_ir == 0)
+ || (access_type != ACCESS_CODE && msr_dr == 0);
+
+ if (real_mode) {
+ ctx->raddr = eaddr & 0x0FFFFFFFFFFFFFFFULL;
+ ctx->prot = PAGE_READ | PAGE_EXEC | PAGE_WRITE;
+ return 0;
+ } else {
+ return get_segment64(env, ctx, eaddr, rw, access_type);
+ }
+}
diff --git a/target-ppc/mmu-hash64.h b/target-ppc/mmu-hash64.h
index 690c1d8..d8eb8de 100644
--- a/target-ppc/mmu-hash64.h
+++ b/target-ppc/mmu-hash64.h
@@ -6,8 +6,8 @@
#ifdef TARGET_PPC64
void dump_slb(FILE *f, fprintf_function cpu_fprintf, CPUPPCState *env);
int ppc_store_slb (CPUPPCState *env, target_ulong rb, target_ulong rs);
-int get_segment64(CPUPPCState *env, mmu_ctx_t *ctx,
- target_ulong eaddr, int rw, int type);
+int ppc_hash64_get_physical_address(CPUPPCState *env, mmu_ctx_t *ctx,
+ target_ulong eaddr, int rw, int access_type);
#endif
#endif /* CONFIG_USER_ONLY */
diff --git a/target-ppc/mmu_helper.c b/target-ppc/mmu_helper.c
index 5b82731..ce39f49 100644
--- a/target-ppc/mmu_helper.c
+++ b/target-ppc/mmu_helper.c
@@ -426,8 +426,8 @@ static inline void bat_601_size_prot(CPUPPCState *env, target_ulong *blp,
*protp = prot;
}
-static inline int get_bat(CPUPPCState *env, mmu_ctx_t *ctx,
- target_ulong virtual, int rw, int type)
+int get_bat(CPUPPCState *env, mmu_ctx_t *ctx,
+ target_ulong virtual, int rw, int type)
{
target_ulong *BATlt, *BATut, *BATu, *BATl;
target_ulong BEPIl, BEPIu, bl;
@@ -1256,8 +1256,6 @@ static inline int check_physical(CPUPPCState *env, mmu_ctx_t *ctx,
ctx->prot = PAGE_READ | PAGE_EXEC;
ret = 0;
switch (env->mmu_model) {
- case POWERPC_MMU_32B:
- case POWERPC_MMU_601:
case POWERPC_MMU_SOFT_6xx:
case POWERPC_MMU_SOFT_74xx:
case POWERPC_MMU_SOFT_4xx:
@@ -1265,15 +1263,7 @@ static inline int check_physical(CPUPPCState *env, mmu_ctx_t *ctx,
case POWERPC_MMU_BOOKE:
ctx->prot |= PAGE_WRITE;
break;
-#if defined(TARGET_PPC64)
- case POWERPC_MMU_64B:
- case POWERPC_MMU_2_06:
- case POWERPC_MMU_2_06d:
- /* Real address are 60 bits long */
- ctx->raddr &= 0x0FFFFFFFFFFFFFFFULL;
- ctx->prot |= PAGE_WRITE;
- break;
-#endif
+
case POWERPC_MMU_SOFT_4xx_Z:
if (unlikely(msr_pe != 0)) {
/* 403 family add some particular protections,
@@ -1298,15 +1288,10 @@ static inline int check_physical(CPUPPCState *env, mmu_ctx_t *ctx,
}
}
break;
- case POWERPC_MMU_MPC8xx:
- /* XXX: TODO */
- cpu_abort(env, "MPC8xx MMU model is not implemented\n");
- break;
- case POWERPC_MMU_BOOKE206:
- cpu_abort(env, "BookE 2.06 MMU doesn't have physical real mode\n");
- break;
+
default:
- cpu_abort(env, "Unknown or invalid MMU model\n");
+ /* Caller's checks mean we should never get here for other models */
+ abort();
return -1;
}
@@ -1327,18 +1312,7 @@ static int get_physical_address(CPUPPCState *env, mmu_ctx_t *ctx,
switch (env->mmu_model) {
case POWERPC_MMU_32B:
case POWERPC_MMU_601:
- if (real_mode) {
- ret = check_physical(env, ctx, eaddr, rw);
- } else {
- /* Try to find a BAT */
- if (env->nb_BATs != 0) {
- ret = get_bat(env, ctx, eaddr, rw, access_type);
- }
- if (ret < 0) {
- /* We didn't match any BAT entry or don't have BATs */
- ret = get_segment32(env, ctx, eaddr, rw, access_type);
- }
- }
+ ret = ppc_hash32_get_physical_address(env, ctx, eaddr, rw, access_type);
break;
case POWERPC_MMU_SOFT_6xx:
@@ -1361,11 +1335,7 @@ static int get_physical_address(CPUPPCState *env, mmu_ctx_t *ctx,
case POWERPC_MMU_64B:
case POWERPC_MMU_2_06:
case POWERPC_MMU_2_06d:
- if (real_mode) {
- ret = check_physical(env, ctx, eaddr, rw);
- } else {
- ret = get_segment64(env, ctx, eaddr, rw, access_type);
- }
+ ret = ppc_hash64_get_physical_address(env, ctx, eaddr, rw, access_type);
break;
#endif
generated by cgit v1.1 at 2024-12-27 12:04:32 +0000