El 09/12/14 a les 18.19, Jan Beulich ha escrit: >>>> On 09.12.14 at 18:01, <roger....@citrix.com> wrote: >> For 4.6 I think we need to start using a different hvm_io_bitmap for PVH >> Dom0 that allows direct access to the IO ports, bypassing the vmexit and >> simplifying the code in Xen (this would also fix INS/OUTS). Still not >> sure what should be done for PVH DomUs, specially when PVH gains support >> for pci-passthrough. > > With the difficulty being that for PV the hypervisor intentionally > intercepts accesses to some of the ports, so we can't blindly > allow PVH access to all the ports its allowed access to.
I assume this is mainly for DomUs but not for Dom0? Or should PVH Dom0 access to the IO space also be filtered and emulated for some ports? Roger. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
