On 4/22/19 4:11 PM, Li Qiang wrote:
> The edu spec says when address >= 0x80, the MMIO area can
> be accessed by 64-bit.
>
> Signed-off-by: Li Qiang <liq...@163.com>
Reviewed-by: Philippe Mathieu-Daude <phi...@redhat.com>
> ---
> Change since v2:
> Fix an error per Phillippe's advice
>
> hw/misc/edu.c | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/hw/misc/edu.c b/hw/misc/edu.c
> index 65fc32b928..33de05141f 100644
> --- a/hw/misc/edu.c
> +++ b/hw/misc/edu.c
> @@ -185,7 +185,11 @@ static uint64_t edu_mmio_read(void *opaque, hwaddr addr,
> unsigned size)
> EduState *edu = opaque;
> uint64_t val = ~0ULL;
>
> - if (size != 4) {
> + if (addr < 0x80 && size != 4) {
> + return val;
> + }
> +
> + if (addr >= 0x80 && size != 4 && size != 8) {
> return val;
> }
>
>
