diff options
| author | David Hildenbrand <david@redhat.com> | 2019-09-04 11:30:29 +0200 |
|---|---|---|
| committer | David Hildenbrand <david@redhat.com> | 2019-09-23 09:28:29 +0200 |
| commit | b7809f369266d6cc1a253688f80a66bfbce9e6dd (patch) | |
| tree | 1ec59da35a7659d62da30cef6b896ea98b834a52 /target | |
| parent | efb1a76ef9e39b4a5628a27f0f1df74336f8d240 (diff) | |
| download | qemu-b7809f369266d6cc1a253688f80a66bfbce9e6dd.zip | |
s390x/tcg: MVC: Fault-safe handling on destructive overlaps
The last remaining bit for MVC is handling destructive overlaps in a
fault-safe way.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Diffstat (limited to 'target')
| -rw-r--r-- | target/s390x/mem_helper.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/target/s390x/mem_helper.c b/target/s390x/mem_helper.c index 04c4228f13..aed53a37da 100644 --- a/target/s390x/mem_helper.c +++ b/target/s390x/mem_helper.c @@ -438,8 +438,9 @@ static uint32_t do_helper_mvc(CPUS390XState *env, uint32_t l, uint64_t dest, access_memmove(env, &desta, &srca, ra); } else { for (i = 0; i < l; i++) { - uint8_t x = cpu_ldub_data_ra(env, src + i, ra); - cpu_stb_data_ra(env, dest + i, x, ra); + uint8_t byte = access_get_byte(env, &srca, i, ra); + + access_set_byte(env, &desta, i, byte, ra); } } |