Revision bb218042 target-ppc/mmu-hash64.c
| b/target-ppc/mmu-hash64.c | ||
|---|---|---|
| 454 | 454 |
return 0; |
| 455 | 455 |
} |
| 456 | 456 |
|
| 457 |
pr = msr_pr; |
|
| 458 |
|
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LOG_MMU("Check SLBs\n");
|
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/* 2. Translation is on, so look up the SLB */ |
|
| 460 | 458 |
slb = slb_lookup(env, eaddr); |
| 459 |
|
|
| 461 | 460 |
if (!slb) {
|
| 462 | 461 |
return -5; |
| 463 | 462 |
} |
| 464 | 463 |
|
| 464 |
/* 3. Check for segment level no-execute violation */ |
|
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if ((rwx == 2) && (slb->vsid & SLB_VSID_N)) {
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return -3; |
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| 467 |
} |
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| 468 |
|
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pr = msr_pr; |
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| 470 |
|
|
| 465 | 471 |
if (slb->vsid & SLB_VSID_B) {
|
| 466 | 472 |
vsid = (slb->vsid & SLB_VSID_VSID) >> SLB_VSID_SHIFT_1T; |
| 467 | 473 |
segment_bits = 40; |
| ... | ... | |
| 490 | 496 |
ctx->key, !!(slb->vsid & SLB_VSID_N), vsid); |
| 491 | 497 |
ret = -1; |
| 492 | 498 |
|
| 493 |
/* Check if instruction fetch is allowed, if needed */ |
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if (rwx != 2 || !(slb->vsid & SLB_VSID_N)) {
|
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/* Page address translation */ |
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LOG_MMU("htab_base " TARGET_FMT_plx " htab_mask " TARGET_FMT_plx
|
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" hash " TARGET_FMT_plx "\n", |
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env->htab_base, env->htab_mask, hash); |
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ctx->hash[0] = hash; |
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ctx->hash[1] = ~hash; |
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| 501 |
|
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/* Initialize real address with an invalid value */ |
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ctx->raddr = (hwaddr)-1ULL; |
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LOG_MMU("0 htab=" TARGET_FMT_plx "/" TARGET_FMT_plx
|
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" vsid=" TARGET_FMT_lx " ptem=" TARGET_FMT_lx |
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" hash=" TARGET_FMT_plx "\n", |
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env->htab_base, env->htab_mask, vsid, ctx->ptem, |
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ctx->hash[0]); |
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/* Primary table lookup */ |
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ret = find_pte64(env, ctx, eaddr, 0, rwx, target_page_bits); |
|
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if (ret < 0) {
|
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/* Secondary table lookup */ |
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LOG_MMU("1 htab=" TARGET_FMT_plx "/" TARGET_FMT_plx
|
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" vsid=" TARGET_FMT_lx " api=" TARGET_FMT_lx |
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" hash=" TARGET_FMT_plx "\n", env->htab_base, |
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env->htab_mask, vsid, ctx->ptem, ctx->hash[1]); |
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ret2 = find_pte64(env, ctx, eaddr, 1, rwx, target_page_bits); |
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if (ret2 != -1) {
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ret = ret2; |
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} |
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/* Page address translation */ |
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LOG_MMU("htab_base " TARGET_FMT_plx " htab_mask " TARGET_FMT_plx
|
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" hash " TARGET_FMT_plx "\n", |
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env->htab_base, env->htab_mask, hash); |
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ctx->hash[0] = hash; |
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ctx->hash[1] = ~hash; |
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|
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/* Initialize real address with an invalid value */ |
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ctx->raddr = (hwaddr)-1ULL; |
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LOG_MMU("0 htab=" TARGET_FMT_plx "/" TARGET_FMT_plx
|
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" vsid=" TARGET_FMT_lx " ptem=" TARGET_FMT_lx |
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" hash=" TARGET_FMT_plx "\n", |
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env->htab_base, env->htab_mask, vsid, ctx->ptem, |
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ctx->hash[0]); |
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/* Primary table lookup */ |
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ret = find_pte64(env, ctx, eaddr, 0, rwx, target_page_bits); |
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if (ret < 0) {
|
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/* Secondary table lookup */ |
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LOG_MMU("1 htab=" TARGET_FMT_plx "/" TARGET_FMT_plx
|
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" vsid=" TARGET_FMT_lx " api=" TARGET_FMT_lx |
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" hash=" TARGET_FMT_plx "\n", env->htab_base, |
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env->htab_mask, vsid, ctx->ptem, ctx->hash[1]); |
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ret2 = find_pte64(env, ctx, eaddr, 1, rwx, target_page_bits); |
|
| 522 |
if (ret2 != -1) {
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ret = ret2; |
|
| 521 | 524 |
} |
| 522 |
} else {
|
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| 523 |
LOG_MMU("No access allowed\n");
|
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| 524 |
ret = -3; |
|
| 525 | 525 |
} |
| 526 | 526 |
|
| 527 | 527 |
return ret; |
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