Date: Sat, 9 Nov 2013 13:04:40 +0100 From: =?ISO-8859-1?Q?Roger_Pau_Monn=E9?= <roger.pau@citrix.com> To: "freebsd-xen@freebsd.org" <freebsd-xen@freebsd.org> Cc: peter@FreeBSD.org, alc@FreeBSD.org, xen-devel <xen-devel@lists.xen.org>, freebsd-current@freebsd.org, Konstantin Belousov <kib@FreeBSD.org>, "Justin T. Gibbs" <gibbs@freebsd.org> Subject: Re: FreeBSD PVH guest support Message-ID: <527E24D8.4010403@citrix.com> In-Reply-To: <527BD793.8010606@citrix.com> References: <526E6807.9030005@citrix.com> <527BD793.8010606@citrix.com>
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On 07/11/13 19:10, Roger Pau Monné wrote: > On 28/10/13 14:35, Roger Pau Monné wrote: >> Hello, >> >> The Xen community is working on a new virtualization mode (or maybe I >> should say an extension of HVM) to be able to run PV guests inside HVM >> containers without requiring a device-model (Qemu). One of the >> advantages of this new virtualization mode is that now it is much more >> easier to port guests to run under it (as compared to pure PV guests). >> >> Given that FreeBSD already supports PVHVM, adding PVH support is quite >> easy, we only need some glue for the PV entry point and then support >> for diverging some early init functions (like fetching the e820 map or >> starting the APs). >> >> The attached patch contains all this changes, and allows a SMP FreeBSD >> guest to fully boot (and AFAIK work) under this new PVH mode. The patch >> can also be found on my git repo: >> >> git://xenbits.xen.org/people/royger/freebsd.git pvh_v2 >> >> The patch touches quite a lot of the early init, so I've Cced the >> persons that maintain those areas, so they can review it. >> >> In order to test it, and since the PVH changes are not yet merged into >> upstream Xen, the use of a patched Xen is necessary. I've collected the >> patches for PVH guest support from George Dunlap (v13) and fixed some >> bugs on top of them, the tree can be found at: >> >> git://xenbits.xen.org/people/royger/xen.git fix_pvh > > I've updated the patch (as suggested by John Baldwin) and added a Xen > Nexus, that attaches all the Xen top-level devices, this gets rid of the > legacy bus. > > The new patch can be found at: > > git://xenbits.xen.org/people/royger/freebsd.git pvh_v2 The correct branch is pvh_v3, not pvh_v2: http://xenbits.xen.org/gitweb/?p=people/royger/freebsd.git;a=shortlog;h=refs/heads/pvh_v3
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