Messages in this thread | | | Date | Tue, 18 Aug 2009 13:00:25 +0300 | From | Avi Kivity <> | Subject | Re: [PATCH v3 3/6] vbus: add a "vbus-proxy" bus model for vbus_driver objects |
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On 08/18/2009 12:53 PM, Michael S. Tsirkin wrote: > I'm not hung up on PCI, myself. An idea that might help you get Avi > on-board: do setup in userspace, over PCI. Negotiate hypercall support > (e.g. with a PCI capability) and then switch to that for fastpath. Hmm? >
Hypercalls don't nest well. When a nested guest issues a hypercall, you have to assume it is destined to the enclosing guest, so you can't assign a hypercall-capable device to a nested guest.
mmio and pio don't have this problem since the host can use the address to locate the destination.
-- error compiling committee.c: too many arguments to function
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