Re: [Xen-devel] Xen Q35 & virtual VTD support

2016-05-10 Thread Lan, Tianyu
On 5/10/2016 10:52 PM, Anthony PERARD wrote: On Tue, May 10, 2016 at 10:31:38PM +0800, Lan, Tianyu wrote: On 5/10/2016 6:11 PM, Stefano Stabellini wrote: Hello Tianyu, What do you mean by reusing Q35 for Xen? If you mean using QEMU to emulate a Q35 based machine for HVM guests, I think that

Re: [Xen-devel] Xen Q35 & virtual VTD support

2016-05-10 Thread Anthony PERARD
On Tue, May 10, 2016 at 10:31:38PM +0800, Lan, Tianyu wrote: > On 5/10/2016 6:11 PM, Stefano Stabellini wrote: > > Hello Tianyu, > > > > What do you mean by reusing Q35 for Xen? If you mean using QEMU to > > emulate a Q35 based machine for HVM guests, I think that should be OK. > > > > From xl

Re: [Xen-devel] Xen Q35 & virtual VTD support

2016-05-10 Thread Lan, Tianyu
On 5/10/2016 6:11 PM, Stefano Stabellini wrote: Hello Tianyu, I am CC'ing Anthony who should have a better idea about this. Also please use my kernel.org email address for future correspondence. OK. I get it. What do you mean by reusing Q35 for Xen? If you mean using QEMU to emulate a

Re: [Xen-devel] Xen Q35 & virtual VTD support

2016-05-10 Thread Stefano Stabellini
Hello Tianyu, I am CC'ing Anthony who should have a better idea about this. Also please use my kernel.org email address for future correspondence. What do you mean by reusing Q35 for Xen? If you mean using QEMU to emulate a Q35 based machine for HVM guests, I think that should be OK. Thanks,

[Xen-devel] Xen Q35 & virtual VTD support

2016-05-09 Thread Lan, Tianyu
Hi All: We are researching how to add virtual VTD support for Xen HVM guest. Current qemu has a basic virtual VTD support for Q35. I'd like to confirm whether Xen supports Q35 or not. Can we reuse it for Xen? Thanks. The motivations of adding virtual VTD support for Xen prepare for 1) Shared