diff options
Diffstat (limited to 'target/s390x/mmu_helper.c')
-rw-r--r-- | target/s390x/mmu_helper.c | 38 |
1 files changed, 15 insertions, 23 deletions
diff --git a/target/s390x/mmu_helper.c b/target/s390x/mmu_helper.c index 6cf74502ef..40b6c1fc36 100644 --- a/target/s390x/mmu_helper.c +++ b/target/s390x/mmu_helper.c @@ -350,8 +350,9 @@ int mmu_translate(CPUS390XState *env, target_ulong vaddr, int rw, uint64_t asc, { static S390SKeysState *ss; static S390SKeysClass *skeyclass; - int r = -1; + uint64_t asce; uint8_t key; + int r; if (unlikely(!ss)) { ss = s390_get_skeys_device(); @@ -381,36 +382,21 @@ int mmu_translate(CPUS390XState *env, target_ulong vaddr, int rw, uint64_t asc, if (!(env->psw.mask & PSW_MASK_DAT)) { *raddr = vaddr; - r = 0; - goto out; + goto nodat; } switch (asc) { case PSW_ASC_PRIMARY: PTE_DPRINTF("%s: asc=primary\n", __func__); - r = mmu_translate_asce(env, vaddr, asc, env->cregs[1], raddr, flags, - rw, exc); + asce = env->cregs[1]; break; case PSW_ASC_HOME: PTE_DPRINTF("%s: asc=home\n", __func__); - r = mmu_translate_asce(env, vaddr, asc, env->cregs[13], raddr, flags, - rw, exc); + asce = env->cregs[13]; break; case PSW_ASC_SECONDARY: PTE_DPRINTF("%s: asc=secondary\n", __func__); - /* - * Instruction: Primary - * Data: Secondary - */ - if (rw == MMU_INST_FETCH) { - r = mmu_translate_asce(env, vaddr, PSW_ASC_PRIMARY, env->cregs[1], - raddr, flags, rw, exc); - *flags &= ~(PAGE_READ | PAGE_WRITE); - } else { - r = mmu_translate_asce(env, vaddr, PSW_ASC_SECONDARY, env->cregs[7], - raddr, flags, rw, exc); - *flags &= ~(PAGE_EXEC); - } + asce = env->cregs[7]; break; case PSW_ASC_ACCREG: default: @@ -418,11 +404,17 @@ int mmu_translate(CPUS390XState *env, target_ulong vaddr, int rw, uint64_t asc, break; } - out: + /* perform the DAT translation */ + r = mmu_translate_asce(env, vaddr, asc, asce, raddr, flags, rw, exc); + if (r) { + return r; + } + +nodat: /* Convert real address -> absolute address */ *raddr = mmu_real2abs(env, *raddr); - if (r == 0 && *raddr < ram_size) { + if (*raddr < ram_size) { r = skeyclass->get_skeys(ss, *raddr / TARGET_PAGE_SIZE, 1, &key); if (r) { trace_get_skeys_nonzero(r); @@ -444,7 +436,7 @@ int mmu_translate(CPUS390XState *env, target_ulong vaddr, int rw, uint64_t asc, } } - return r; + return 0; } /** |