Re: [Xen-devel] About sharing pages between Xen and guest kernel

2014-11-13 Thread Jan Beulich
>>> On 13.11.14 at 00:52, wrote: > Hello, > > I am trying to set up a shared page between the hypervisor and a Linux guest > kernel. In Xen I am doing: > > void *ptr = alloc_xenheap_page(); > share_xen_page_with_guest(virt_to_page(ptr), current->domain, > XENSHARE_writable); > unsigned int mfn

[Xen-devel] About sharing pages between Xen and guest kernel

2014-11-12 Thread Amaro, Emmanuel
Hello, I am trying to set up a shared page between the hypervisor and a Linux guest kernel. In Xen I am doing: void *ptr = alloc_xenheap_page(); share_xen_page_with_guest(virt_to_page(ptr), current->domain, XENSHARE_writable); unsigned int mfn = virt_to_mfn(ptr); And my plan was to pass the mf