diff options
Diffstat (limited to 'target-s390x/mmu_helper.c')
| -rw-r--r-- | target-s390x/mmu_helper.c | 28 |
1 files changed, 23 insertions, 5 deletions
diff --git a/target-s390x/mmu_helper.c b/target-s390x/mmu_helper.c index 1ea6d81..058a370 100644 --- a/target-s390x/mmu_helper.c +++ b/target-s390x/mmu_helper.c @@ -19,6 +19,8 @@ #include "exec/address-spaces.h" #include "cpu.h" #include "sysemu/kvm.h" +#include "trace.h" +#include "hw/s390x/storage-keys.h" /* #define DEBUG_S390 */ /* #define DEBUG_S390_PTE */ @@ -309,8 +311,15 @@ static int mmu_translate_asce(CPUS390XState *env, target_ulong vaddr, int mmu_translate(CPUS390XState *env, target_ulong vaddr, int rw, uint64_t asc, target_ulong *raddr, int *flags, bool exc) { + static S390SKeysState *ss; + static S390SKeysClass *skeyclass; int r = -1; - uint8_t *sk; + uint8_t key; + + if (unlikely(!ss)) { + ss = s390_get_skeys_device(); + skeyclass = S390_SKEYS_GET_CLASS(ss); + } *flags = PAGE_READ | PAGE_WRITE | PAGE_EXEC; vaddr &= TARGET_PAGE_MASK; @@ -358,14 +367,23 @@ int mmu_translate(CPUS390XState *env, target_ulong vaddr, int rw, uint64_t asc, /* Convert real address -> absolute address */ *raddr = mmu_real2abs(env, *raddr); - if (*raddr < ram_size) { - sk = &env->storage_keys[*raddr / TARGET_PAGE_SIZE]; + if (r == 0 && *raddr < ram_size) { + if (skeyclass->get_skeys(ss, *raddr / TARGET_PAGE_SIZE, 1, &key)) { + trace_get_skeys_nonzero(r); + return 0; + } + if (*flags & PAGE_READ) { - *sk |= SK_R; + key |= SK_R; } if (*flags & PAGE_WRITE) { - *sk |= SK_C; + key |= SK_C; + } + + if (skeyclass->set_skeys(ss, *raddr / TARGET_PAGE_SIZE, 1, &key)) { + trace_set_skeys_nonzero(r); + return 0; } } |