The edu spec said when address >= 0x80, the MMIO area can be accessed by 8 bytes.
Signed-off-by: Li Qiang <liq...@163.com> --- Change since v1: Fix format compile error on Windows hw/misc/edu.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/hw/misc/edu.c b/hw/misc/edu.c index 65fc32b928..4018dddcb8 100644 --- a/hw/misc/edu.c +++ b/hw/misc/edu.c @@ -189,6 +189,10 @@ static uint64_t edu_mmio_read(void *opaque, hwaddr addr, unsigned size) return val; } + if (addr >= 0x80 && size != 4 && size != 8) { + return val; + } + switch (addr) { case 0x00: val = 0x010000edu; -- 2.17.1