Date: Mon, 13 Dec 2010 20:28:30 +0200 From: Ion-Mihai Tetcu <itetcu@FreeBSD.org> To: "Robert N. M. Watson" <rwatson@FreeBSD.org> Cc: svn-src-stable@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org, svn-src-stable-8@freebsd.org Subject: Re: svn commit: r216406 - stable/8/sys/amd64/conf Message-ID: <20101213202830.75fbce4c@it.buh.tecnik93.com> In-Reply-To: <B7ED1E1F-5797-448E-A1A7-D905E7EE5FD5@FreeBSD.org> References: <201012131234.oBDCYZvl082510@svn.freebsd.org> <20101213160021.60401b79@it.buh.tecnik93.com> <B7ED1E1F-5797-448E-A1A7-D905E7EE5FD5@FreeBSD.org>
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--Sig_/Rs_BOp4qMCqJKg49KoSDVhF Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Mon, 13 Dec 2010 15:31:48 +0000 "Robert N. M. Watson" <rwatson@FreeBSD.org> wrote: >=20 > On 13 Dec 2010, at 14:00, Ion-Mihai Tetcu wrote: >=20 > >> Derive the XENHVM kernel from GENERIC, adding only the options > >> required to support PV drivers (such as xenpci), and non-adptive > >> locking (along with a comment about why). > >=20 > > What about the same for i386? >=20 > We don't currently support combining PV drivers with a non-PV kernel > on i386; nor do we support a pure PV kernel on amd64. The former > strikes me as more of a problem than the latter. Other than Amazon > EC2, it seems most interesting targets will support HVM in practice, > and benefit from PV drivers, but not require a pure PV kernel (i.e., > Xen-modified VM system). I see. Thanks for the time you took to explain things, I'm very new to XEN. Do we have any docs somewhere (well, except the sources) about our XEN support and various options / optimizations? I only know about AdrianChadd's wiki pags and http://wiki.freebsd.org/FreeBSD/Xen (which are nice, if you happen to know about XEN already and especially if you want to work towards a FreebSD as XEN host). I guess there are more interested people taht want just to run FreeBSD as guest OS (my case). >=20 > Your kernel configuration is likely trying to build options XEN on > i386 without PAE; we currently require options PAE to build a PV Xen > kernel on i386.=20 Hum, yes, I thought it doesn't make sense to have PAE when my VM has only 1GB of RAM. Maybe a comment in sys/i386/conf/XEN would help. > (It also looks like "options XEN" is spelled "option > XEN" in your config file below?) Which proves I mange to make typos even when copy/pasting, sigh. Thanks again, --=20 IOnut - Un^d^dregistered ;) FreeBSD "user" "Intellectual Property" is nowhere near as valuable as "Intellect" FreeBSD committer -> itetcu@FreeBSD.org, PGP Key ID 057E9F8B493A297B --Sig_/Rs_BOp4qMCqJKg49KoSDVhF Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.16 (FreeBSD) iEYEARECAAYFAk0GZc4ACgkQJ7GIuiH/oeWl3QCeLsALW+iCACuyWFBUZaVOv2Zb B5IAnjvR41fQDp+ESiKsp16/lWlktH9L =wY6T -----END PGP SIGNATURE----- --Sig_/Rs_BOp4qMCqJKg49KoSDVhF--
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