diff options
| author | Arwed Meyer <arwed.meyer@gmx.de> | 2022-09-11 20:18:40 +0200 |
|---|---|---|
| committer | Marc-André Lureau <marcandre.lureau@redhat.com> | 2022-09-29 14:38:05 +0400 |
| commit | 769a726ccb9a8ab9b2a05bca648c79b3f80ab8de (patch) | |
| tree | d974a3da56771ebb6dbe072158364c499322ea61 /hw | |
| parent | 50d03d485251d63931a69b3ad7004f3bb6ac8eee (diff) | |
serial: Allow unaligned i/o access
Unaligned i/o access on serial UART works on real PCs.
This is used for example by FreeDOS CTMouse driver. Without this it
can't reset and detect serial mice.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/77
Signed-off-by: Arwed Meyer <arwed.meyer@gmx.de>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220911181840.8933-6-arwed.meyer@gmx.de>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/char/serial.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/hw/char/serial.c b/hw/char/serial.c index 7061aacbce..41b5e61977 100644 --- a/hw/char/serial.c +++ b/hw/char/serial.c @@ -961,6 +961,9 @@ void serial_set_frequency(SerialState *s, uint32_t frequency) const MemoryRegionOps serial_io_ops = { .read = serial_ioport_read, .write = serial_ioport_write, + .valid = { + .unaligned = 1, + }, .impl = { .min_access_size = 1, .max_access_size = 1, |