On Thu, 2008-01-10 at 00:59 +0100, maximilian attems wrote: > On Wed, Jan 09, 2008 at 09:58:45PM +0000, Ian Campbell wrote: > <snipp d-i side> > > I'd like to propose enabling Xen guest support in all the native i?86 > > kernel images (and eventually amd64 too), or at least in the -686-bigmem > > kernel. Since paravirt ops is already enabled in all kernels (for KVM > > and lguest) there is only minimal additional overhead to enabling Xen. > > > > As a nice bonus this would also allow the separate -xen flavour kernels > > to be removed/deprecated which seems like a good thing in the > > paravirt_ops based world. > > this sounds like a good plan, getting rid of the number of images > is always a welcome bonus.
I have build tested the attached patch and test booted the -486 and -686-bigmem versions on native. Unfortunately the Xen domain builder isn't capable of loading a native bzImage directly -- it requires the ELF vmlinux. I hacked around that when I was playing with Xen enabled d-i and then promptly forgot I had done so, which is a shame because it's quite important! For now I grabbed the 686-bigmem vmlinux from the build tree and boot tested that. People were looking at modifications to the kernel and/or the Xen domain builder to allow it to boot a bzImage, I think by making the bzImage payload be an ELF file instead of the current raw binary blob. I'll see what is going on in that area. I don't think there is any harm in applying the patch now, although without a patch for builder support it's a bit pointless. > i know that fedora also is very keen to move to the paravirt_ops world. > for Etch linux-2.6 had dom0 images, when will those be merged, > where are the patches based on paravirt ops against 2.6.24? > we wouldn't want to release Lenny without the support we had given > in Etch (which turned out to be *very* buggy, but that is another > story) of a dom0 linux-2.6 linux-image variant. The Fedora guys announced that they were working on dom0 paravirt_ops stuff at the end of last year [0]. I must admit I haven't really been keeping up with their efforts though. I had a dig around and didn't see anything further to what was announced. They were targeting Fedora 9. According to [1] feature freeze is start of March so I'd presume they plan to have patches before then. [0] https://www.redhat.com/archives/fedora-xen/2007-November/msg00106.html [1] http://fedoraproject.org/wiki/Releases/9 Cheers, Ian. -- Ian Campbell From the cradle to the coffin underwear comes first. -- Bertolt Brecht
Index: linux-2.6/debian/config/i386/config =================================================================== --- linux-2.6.orig/debian/config/i386/config 2008-01-10 19:05:40.000000000 +0000 +++ linux-2.6/debian/config/i386/config 2008-01-10 19:06:19.000000000 +0000 @@ -1483,7 +1483,10 @@ CONFIG_KS0108_DELAY=2 CONFIG_CFAG12864B=m CONFIG_CFAG12864B_RATE=20 -# CONFIG_XEN is not set +CONFIG_XEN=y +CONFIG_XEN_BLKDEV_FRONTEND=y +CONFIG_HVC_XEN=y +CONFIG_XEN_NETDEV_FRONTEND=y CONFIG_VMI=y CONFIG_PARAVIRT=y CONFIG_PARAVIRT_GUEST=y Index: linux-2.6/debian/changelog =================================================================== --- linux-2.6.orig/debian/changelog 2008-01-10 19:05:40.000000000 +0000 +++ linux-2.6/debian/changelog 2008-01-10 19:06:19.000000000 +0000 @@ -63,6 +63,9 @@ [ Christian T. Steigies ] * [m68k]: Update patches from linux-m68k CVS + [ Ian Campbell ] + * [i386]: Enable Xen guest support in all i386 flavours. + -- maximilian attems <[EMAIL PROTECTED]> Wed, 09 Jan 2008 17:17:56 +0100 linux-2.6 (2.6.23-1~experimental.1) UNRELEASED; urgency=low
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