>>> On 25.02.16 at 16:49, <paul.durr...@citrix.com> wrote:
> +To allow an IOREQ server to claim or release a claim to a type a new pair
> +of hypercalls will be introduced:
> +
> +- HVMOP\_map\_mem\_type\_to\_ioreq\_server
> +- HVMOP\_unmap\_mem\_type\_from\_ioreq\_server
> +
> +and an associated argument structure:
> +
> + struct hvm_ioreq_mem_type {
> + domid_t domid; /* IN - domain to be serviced */
> + ioservid_t id; /* IN - server id */
> + hvmmem_type_t type; /* IN - memory type */
> + uint32_t flags; /* IN - types of access to be
> + intercepted */
> +
> + #define _HVMOP_IOREQ_MEM_ACCESS_READ 0
> + #define HVMOP_IOREQ_MEM_ACCESS_READ \
> + (1 << _HVMOP_IOREQ_MEM_ACCESS_READ)
> +
> + #define _HVMOP_IOREQ_MEM_ACCESS_WRITE 1
> + #define HVMOP_IOREQ_MEM_ACCESS_WRITE \
> + (1 << _HVMOP_IOREQ_MEM_ACCESS_WRITE)
> +
> + };
How about having just one new hypercall, with flags being zero
meaning "unmap"?
Jan
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