diff options
| -rw-r--r-- | target/s390x/tcg/mem_helper.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/target/s390x/tcg/mem_helper.c b/target/s390x/tcg/mem_helper.c index f417fb1183..84103251b9 100644 --- a/target/s390x/tcg/mem_helper.c +++ b/target/s390x/tcg/mem_helper.c @@ -667,6 +667,11 @@ uint32_t HELPER(clm)(CPUS390XState *env, uint32_t r1, uint32_t mask, HELPER_LOG("%s: r1 0x%x mask 0x%x addr 0x%" PRIx64 "\n", __func__, r1, mask, addr); + if (!mask) { + /* Recognize access exceptions for the first byte */ + probe_read(env, addr, 1, cpu_mmu_index(env, false), ra); + } + while (mask) { if (mask & 8) { uint8_t d = cpu_ldub_data_ra(env, addr, ra); |