This is currently needed to avoid an issue in the Linux RFC in which a read is issued that is not a multiple of DW. On arm64 that results in byte reads being issued and a bus error returned. It is not yet obvious at what level this should be fixed, so paper over it to get things working. Not-signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> --- hw/cxl/cxl-device-utils.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/hw/cxl/cxl-device-utils.c b/hw/cxl/cxl-device-utils.c index d0d0a47122..52dd03384a 100644 --- a/hw/cxl/cxl-device-utils.c +++ b/hw/cxl/cxl-device-utils.c @@ -181,11 +181,11 @@ static const MemoryRegionOps mailbox_ops = { .write = mailbox_reg_write, .endianness = DEVICE_LITTLE_ENDIAN, .valid = { - .min_access_size = 4, + .min_access_size = 1, .max_access_size = 8, }, .impl = { - .min_access_size = 4, + .min_access_size = 1, .max_access_size = 8, }, }; -- 2.19.1