Re: [Xen-devel] [PATCH RFC 3/4] tools/libxc: Add APIs to create and get the PV ring page

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Mon, 2014-04-28 at 21:45 -0700, Aravindh Puthiyaparambil wrote:
> Add two APIs, xc_mem_access_create_ring_page() and
> xc_mem_access_get_ring_mfn(). The mem_access listener needs to call
> xc_mem_access_create_ring_page() before enabling mem_access for PV
> domains. This is not needed for HVM domains as the page is created
> during domain creation time. It can then call
> xc_mem_access_get_ring_mfn() to get the mfn of the created page to map
> in. This is requivalent to xc_get_hvm_param(HVM_PARAM_ACCESS_RING_PFN)
> for HVM domains.
> 
> Signed-off-by: Aravindh Puthiyaparambil <aravindp@xxxxxxxxx>
> Cc: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
> Cc: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>

Seems like a reasonable veneer over the hypercall, so assuming that is
acked by the hypervisor guys this tools bit:
        Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>



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