diff options
Diffstat (limited to 'target/s390x/mmu_helper.c')
| -rw-r--r-- | target/s390x/mmu_helper.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/target/s390x/mmu_helper.c b/target/s390x/mmu_helper.c index dc33c63b1d..e27e21328b 100644 --- a/target/s390x/mmu_helper.c +++ b/target/s390x/mmu_helper.c @@ -120,6 +120,7 @@ static int mmu_translate_asce(CPUS390XState *env, target_ulong vaddr, { const bool edat1 = (env->cregs[0] & CR0_EDAT) && s390_has_feat(S390_FEAT_EDAT); + const bool edat2 = edat1 && s390_has_feat(S390_FEAT_EDAT_2); const int asce_tl = asce & ASCE_TABLE_LENGTH; const int asce_p = asce & ASCE_PRIVATE_SPACE; hwaddr gaddr = asce & ASCE_ORIGIN; @@ -217,13 +218,21 @@ static int mmu_translate_asce(CPUS390XState *env, target_ulong vaddr, if ((entry & REGION_ENTRY_TT) != REGION_ENTRY_TT_REGION3) { return PGM_TRANS_SPEC; } - if (VADDR_SEGMENT_TL(vaddr) < (entry & REGION_ENTRY_TF) >> 6 || - VADDR_SEGMENT_TL(vaddr) > (entry & REGION_ENTRY_TL)) { - return PGM_SEGMENT_TRANS; + if (edat2 && (entry & REGION3_ENTRY_CR) && asce_p) { + return PGM_TRANS_SPEC; } if (edat1 && (entry & REGION_ENTRY_P)) { *flags &= ~PAGE_WRITE; } + if (edat2 && (entry & REGION3_ENTRY_FC)) { + *raddr = (entry & REGION3_ENTRY_RFAA) | + (vaddr & ~REGION3_ENTRY_RFAA); + return 0; + } + if (VADDR_SEGMENT_TL(vaddr) < (entry & REGION_ENTRY_TF) >> 6 || + VADDR_SEGMENT_TL(vaddr) > (entry & REGION_ENTRY_TL)) { + return PGM_SEGMENT_TRANS; + } gaddr = (entry & REGION_ENTRY_ORIGIN) + VADDR_SEGMENT_TX(vaddr) * 8; /* fall through */ case ASCE_TYPE_SEGMENT: |