On 08/10/2020 19:57, Paul Durrant wrote:
> diff --git a/xen/include/public/save.h b/xen/include/public/save.h
> index c4be9f570c..bccbaadd0b 100644
> --- a/xen/include/public/save.h
> +++ b/xen/include/public/save.h
> @@ -58,6 +59,16 @@ struct domain_context_start {
> uint32_t xen_major, xen_minor;
> };
>
> +struct domain_context_shared_info {
> + uint32_t flags;
> +
> +#define _DOMAIN_CONTEXT_32BIT_SHARED_INFO 0
> +#define DOMAIN_CONTEXT_32BIT_SHARED_INFO \
> + (1U << _DOMAIN_CONTEXT_32BIT_SHARED_INFO)
There is no need for the logarithm version of this constant.
You do however want an explicit uint32_t _rsvd; so buffer[] doesn't
start at the wrong alignment for an efficient memcpy() in 64bit builds
of Xen.
~Andrew
