[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] PCI passthrough will cause unknown device appearance in device manager of Windows OS via xenstore keys
On Thu, 13 Apr 2017, Roger Pau Monné wrote: > On Thu, Apr 13, 2017 at 09:41:03AM +0100, Wei Liu wrote: > > On Wed, Apr 12, 2017 at 04:21:42PM -0400, Konrad Rzeszutek Wilk wrote: > > > On Wed, Apr 12, 2017 at 04:46:33PM +0100, Wei Liu wrote: > > > > On Mon, Apr 10, 2017 at 09:43:13AM -0400, Konrad Rzeszutek Wilk wrote: > > > > [...] > > > > > > > > > > .. Except that we need some way of doing FLR and Pciback > > > > > is the one doing it. > > > > > > > > > > The right way would be to expand pciback to support the do_flr ioctl > > > > > and combine it with your patch. > > > > > > > > > > > > > OK. Does that mean the bug is in Linux and I should just take Ross's > > > > > > Please don't. > > > > > > Or if you would like I can do > > > > > > Nacked-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> > > > > > > > Please correct me if I'm wrong: current libxl code is broken in one way and > > taking that patch means to break it in another way? > > > > What is the way forward? Do you want me to wait until those kernel > > patches are upstreamed? > > Julien was looking into moving all this reset logic into the hypervisor > itself, > so that ARM and PVHv2 passthrough doesn't use pciback at all. Maybe it could > be > done now? AFAICT this would solve the issue under discussion here. That is a medium to long term goal and I wouldn't rely on it to fix an outstanding bug. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx https://lists.xen.org/xen-devel
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