On Mon, Jun 26, 2017 at 02:05:48PM +0200, Juergen Groß wrote: > On 06/23/2017 02:47 PM, Marek Marczykowski-Górecki wrote: > > Userspace application can do a hypercall through /dev/xen/privcmd, and > > some for some hypercalls argument is a pointers to user-provided > > structure. When SMAP is supported and enabled, hypervisor can't access. > > So, lets allow it. > > What about HYPERVISOR_dm_op? Indeed, arguments copied to kernel space there are only addresses of buffers. Will send v2 in a moment. But I can't test it right now, as for my understanding this require HVM/PVHv2 dom0 or stubdomain... -- Best Regards, Marek Marczykowski-Górecki Invisible Things Lab A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing?
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