summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
Diffstat
-rw-r--r--target-ppc/mmu-hash32.c98
-rw-r--r--target-ppc/mmu-hash64.c68
2 files changed, 83 insertions, 83 deletions
diff --git a/target-ppc/mmu-hash32.c b/target-ppc/mmu-hash32.c
index dbde264..d812adb 100644
--- a/target-ppc/mmu-hash32.c
+++ b/target-ppc/mmu-hash32.c
@@ -466,10 +466,16 @@ static int ppc_hash32_translate(CPUPPCState *env, struct mmu_ctx_hash32 *ctx,
&ctx->raddr, &ctx->prot);
}
+ /* 5. Check for segment level no-execute violation */
+ ctx->nx = !!(sr & SR32_NX);
+ if ((rwx == 2) && ctx->nx) {
+ return -3;
+ }
+
pr = msr_pr;
ctx->key = (((sr & SR32_KP) && (pr != 0)) ||
((sr & SR32_KS) && (pr == 0))) ? 1 : 0;
- ctx->nx = !!(sr & SR32_NX);
+
vsid = sr & SR32_VSID;
target_page_bits = TARGET_PAGE_BITS;
LOG_MMU("Check segment v=" TARGET_FMT_lx " %d " TARGET_FMT_lx " nip="
@@ -485,59 +491,53 @@ static int ppc_hash32_translate(CPUPPCState *env, struct mmu_ctx_hash32 *ctx,
ctx->key, ctx->nx, vsid);
ret = -1;
- /* Check if instruction fetch is allowed, if needed */
- if (rwx != 2 || ctx->nx == 0) {
- /* Page address translation */
- LOG_MMU("htab_base " TARGET_FMT_plx " htab_mask " TARGET_FMT_plx
- " hash " TARGET_FMT_plx "\n",
- env->htab_base, env->htab_mask, hash);
- ctx->hash[0] = hash;
- ctx->hash[1] = ~hash;
-
- /* Initialize real address with an invalid value */
- ctx->raddr = (hwaddr)-1ULL;
- LOG_MMU("0 htab=" TARGET_FMT_plx "/" TARGET_FMT_plx
- " vsid=" TARGET_FMT_lx " ptem=" TARGET_FMT_lx
- " hash=" TARGET_FMT_plx "\n",
- env->htab_base, env->htab_mask, vsid, ctx->ptem,
- ctx->hash[0]);
- /* Primary table lookup */
- ret = find_pte32(env, ctx, eaddr, 0, rwx, target_page_bits);
- if (ret < 0) {
- /* Secondary table lookup */
- LOG_MMU("1 htab=" TARGET_FMT_plx "/" TARGET_FMT_plx
- " vsid=" TARGET_FMT_lx " api=" TARGET_FMT_lx
- " hash=" TARGET_FMT_plx "\n", env->htab_base,
- env->htab_mask, vsid, ctx->ptem, ctx->hash[1]);
- ret2 = find_pte32(env, ctx, eaddr, 1, rwx, target_page_bits);
- if (ret2 != -1) {
- ret = ret2;
- }
+ /* Page address translation */
+ LOG_MMU("htab_base " TARGET_FMT_plx " htab_mask " TARGET_FMT_plx
+ " hash " TARGET_FMT_plx "\n",
+ env->htab_base, env->htab_mask, hash);
+ ctx->hash[0] = hash;
+ ctx->hash[1] = ~hash;
+
+ /* Initialize real address with an invalid value */
+ ctx->raddr = (hwaddr)-1ULL;
+ LOG_MMU("0 htab=" TARGET_FMT_plx "/" TARGET_FMT_plx
+ " vsid=" TARGET_FMT_lx " ptem=" TARGET_FMT_lx
+ " hash=" TARGET_FMT_plx "\n",
+ env->htab_base, env->htab_mask, vsid, ctx->ptem,
+ ctx->hash[0]);
+ /* Primary table lookup */
+ ret = find_pte32(env, ctx, eaddr, 0, rwx, target_page_bits);
+ if (ret < 0) {
+ /* Secondary table lookup */
+ LOG_MMU("1 htab=" TARGET_FMT_plx "/" TARGET_FMT_plx
+ " vsid=" TARGET_FMT_lx " api=" TARGET_FMT_lx
+ " hash=" TARGET_FMT_plx "\n", env->htab_base,
+ env->htab_mask, vsid, ctx->ptem, ctx->hash[1]);
+ ret2 = find_pte32(env, ctx, eaddr, 1, rwx, target_page_bits);
+ if (ret2 != -1) {
+ ret = ret2;
}
+ }
#if defined(DUMP_PAGE_TABLES)
- if (qemu_log_enabled()) {
- hwaddr curaddr;
- uint32_t a0, a1, a2, a3;
-
- qemu_log("Page table: " TARGET_FMT_plx " len " TARGET_FMT_plx
- "\n", sdr, mask + 0x80);
- for (curaddr = sdr; curaddr < (sdr + mask + 0x80);
- curaddr += 16) {
- a0 = ldl_phys(curaddr);
- a1 = ldl_phys(curaddr + 4);
- a2 = ldl_phys(curaddr + 8);
- a3 = ldl_phys(curaddr + 12);
- if (a0 != 0 || a1 != 0 || a2 != 0 || a3 != 0) {
- qemu_log(TARGET_FMT_plx ": %08x %08x %08x %08x\n",
- curaddr, a0, a1, a2, a3);
- }
+ if (qemu_log_enabled()) {
+ hwaddr curaddr;
+ uint32_t a0, a1, a2, a3;
+
+ qemu_log("Page table: " TARGET_FMT_plx " len " TARGET_FMT_plx
+ "\n", sdr, mask + 0x80);
+ for (curaddr = sdr; curaddr < (sdr + mask + 0x80);
+ curaddr += 16) {
+ a0 = ldl_phys(curaddr);
+ a1 = ldl_phys(curaddr + 4);
+ a2 = ldl_phys(curaddr + 8);
+ a3 = ldl_phys(curaddr + 12);
+ if (a0 != 0 || a1 != 0 || a2 != 0 || a3 != 0) {
+ qemu_log(TARGET_FMT_plx ": %08x %08x %08x %08x\n",
+ curaddr, a0, a1, a2, a3);
}
}
-#endif
- } else {
- LOG_MMU("No access allowed\n");
- ret = -3;
}
+#endif
return ret;
}
diff --git a/target-ppc/mmu-hash64.c b/target-ppc/mmu-hash64.c
index 9afc418..4fb7ecd 100644
--- a/target-ppc/mmu-hash64.c
+++ b/target-ppc/mmu-hash64.c
@@ -454,14 +454,20 @@ static int ppc_hash64_translate(CPUPPCState *env, struct mmu_ctx_hash64 *ctx,
return 0;
}
- pr = msr_pr;
-
- LOG_MMU("Check SLBs\n");
+ /* 2. Translation is on, so look up the SLB */
slb = slb_lookup(env, eaddr);
+
if (!slb) {
return -5;
}
+ /* 3. Check for segment level no-execute violation */
+ if ((rwx == 2) && (slb->vsid & SLB_VSID_N)) {
+ return -3;
+ }
+
+ pr = msr_pr;
+
if (slb->vsid & SLB_VSID_B) {
vsid = (slb->vsid & SLB_VSID_VSID) >> SLB_VSID_SHIFT_1T;
segment_bits = 40;
@@ -490,38 +496,32 @@ static int ppc_hash64_translate(CPUPPCState *env, struct mmu_ctx_hash64 *ctx,
ctx->key, !!(slb->vsid & SLB_VSID_N), vsid);
ret = -1;
- /* Check if instruction fetch is allowed, if needed */
- if (rwx != 2 || !(slb->vsid & SLB_VSID_N)) {
- /* Page address translation */
- LOG_MMU("htab_base " TARGET_FMT_plx " htab_mask " TARGET_FMT_plx
- " hash " TARGET_FMT_plx "\n",
- env->htab_base, env->htab_mask, hash);
- ctx->hash[0] = hash;
- ctx->hash[1] = ~hash;
-
- /* Initialize real address with an invalid value */
- ctx->raddr = (hwaddr)-1ULL;
- LOG_MMU("0 htab=" TARGET_FMT_plx "/" TARGET_FMT_plx
- " vsid=" TARGET_FMT_lx " ptem=" TARGET_FMT_lx
- " hash=" TARGET_FMT_plx "\n",
- env->htab_base, env->htab_mask, vsid, ctx->ptem,
- ctx->hash[0]);
- /* Primary table lookup */
- ret = find_pte64(env, ctx, eaddr, 0, rwx, target_page_bits);
- if (ret < 0) {
- /* Secondary table lookup */
- LOG_MMU("1 htab=" TARGET_FMT_plx "/" TARGET_FMT_plx
- " vsid=" TARGET_FMT_lx " api=" TARGET_FMT_lx
- " hash=" TARGET_FMT_plx "\n", env->htab_base,
- env->htab_mask, vsid, ctx->ptem, ctx->hash[1]);
- ret2 = find_pte64(env, ctx, eaddr, 1, rwx, target_page_bits);
- if (ret2 != -1) {
- ret = ret2;
- }
+ /* Page address translation */
+ LOG_MMU("htab_base " TARGET_FMT_plx " htab_mask " TARGET_FMT_plx
+ " hash " TARGET_FMT_plx "\n",
+ env->htab_base, env->htab_mask, hash);
+ ctx->hash[0] = hash;
+ ctx->hash[1] = ~hash;
+
+ /* Initialize real address with an invalid value */
+ ctx->raddr = (hwaddr)-1ULL;
+ LOG_MMU("0 htab=" TARGET_FMT_plx "/" TARGET_FMT_plx
+ " vsid=" TARGET_FMT_lx " ptem=" TARGET_FMT_lx
+ " hash=" TARGET_FMT_plx "\n",
+ env->htab_base, env->htab_mask, vsid, ctx->ptem,
+ ctx->hash[0]);
+ /* Primary table lookup */
+ ret = find_pte64(env, ctx, eaddr, 0, rwx, target_page_bits);
+ if (ret < 0) {
+ /* Secondary table lookup */
+ LOG_MMU("1 htab=" TARGET_FMT_plx "/" TARGET_FMT_plx
+ " vsid=" TARGET_FMT_lx " api=" TARGET_FMT_lx
+ " hash=" TARGET_FMT_plx "\n", env->htab_base,
+ env->htab_mask, vsid, ctx->ptem, ctx->hash[1]);
+ ret2 = find_pte64(env, ctx, eaddr, 1, rwx, target_page_bits);
+ if (ret2 != -1) {
+ ret = ret2;
}
- } else {
- LOG_MMU("No access allowed\n");
- ret = -3;
}
return ret;
OpenPOWER on IntegriCloud