On 19/12/2018 12:10, Roger Pau Monné wrote: > Hypercalls AFAIK have a single target (or subject) domain, so even if > there's a stubdomain relation I'm not sure I see why that would > require this kind of locking, any domain can perform hypercalls > against a single subject domain, and the hypervisor itself doesn't > even know about stubdomain relations.
Grant copy has two domains, and neither need to be the callee. Specifically, we discovered during the SILO work that dom0 occasonally issues a dom1 => dom2 grant copy. ~Andrew _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
