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Diffstat (limited to 'target/s390x/mmu_helper.c')
-rw-r--r--target/s390x/mmu_helper.c38
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;
}
/**