Re: [Xen-devel] FreeBSD PVHVM call for testing
On Mon, May 13, 2013 at 7:32 PM, Roger Pau Monné roger@citrix.com wrote: Hello, Recently Justin T Gibbs, Will Andrews and myself have been working on improving the Xen support in FreeBSD. The main goal of this was to bring full PVHVM support to FreeBSD, right now FreeBSD is only using PV interfaces for disk and network interfaces when running as a HVM guest. The main benefits of this changes are that Xen virtual interrupts (event channels) are now delivered to the guest using a vector callback injection, that is a per-cpu mechanism that allows each vCPU to have different interrupts assigned, so for example network and disk interrupts are delivered to different vCPUs in order to improve performance. With this changes FreeBSD also uses PV timers when running as an HVM guest, which should provide better time keeping and reduce the virtualization overhead, since emulated timers are no longer used. PV IPIs can also be used inside a HVM guest, but this will be implemented later. Right now the code is in a state where it can be tested by users, so we would like to encourage FreeBSD and Xen users to test it and provide feedback. Is this something we should try to put on the Xen.org blog? -George ___ freebsd-virtualization@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-virtualization To unsubscribe, send any mail to freebsd-virtualization-unsubscr...@freebsd.org
Re: [Xen-devel] FreeBSD PVHVM call for testing
On mar, 2013-05-14 at 10:19 +0100, George Dunlap wrote: On Mon, May 13, 2013 at 7:32 PM, Roger Pau Monné roger@citrix.com wrote: Hello, Recently Justin T Gibbs, Will Andrews and myself have been working on improving the Xen support in FreeBSD. The main goal of this was to bring full PVHVM support to FreeBSD, right now FreeBSD is only using PV interfaces for disk and network interfaces when running as a HVM guest. [..] Right now the code is in a state where it can be tested by users, so we would like to encourage FreeBSD and Xen users to test it and provide feedback. Cool! :-) Is this something we should try to put on the Xen.org blog? I think it definitely should... Whoever is up to write a blog post about it, please, get in touch to me. Soon we'll have the new mailing lists and all the stuff, but for now, just drop me a line, and I can put the post in the pipeline. Regards, Dario -- This happens because I choose it to happen! (Raistlin Majere) - Dario Faggioli, Ph.D, http://about.me/dario.faggioli Senior Software Engineer, Citrix Systems RD Ltd., Cambridge (UK) signature.asc Description: This is a digitally signed message part
