[PATCH] raisin: disable stubdoms and etherboot in xen

[PATCH] raisin: disable stubdoms and etherboot in xen

[Stefano Stabellini]

Raisin is about cloning (or downloading) components explicitly and
independently, rather than having the Xen build system clone and build
stuff as part of the build process.

Unfortunately it is not possible to build stubdoms outside the Xen tree
today, so just disable stubdoms for the moment.

Similarly etherboot support requires downloading ipxe, so remove it for
now.

With this patch, building Xen via Raisin doesn't fetch anything from the
web, aside from what is configure in the config file.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>

---

diff --git a/components/xen b/components/xen
index 090cceb..894d119 100644
--- a/components/xen
+++ b/components/xen
@@ -42,10 +42,13 @@ function xen_build() {
     then
         ovmf_opt="--enable-ovmf --with-system-ovmf="$BASEDIR"/ovmf-dir/ovmf.bin"
     fi
+    export ETHERBOOT_NICS=""
     ./configure --prefix=$PREFIX --with-system-qemu=$PREFIX/lib/xen/bin/qemu-system-i386 \
-        --disable-qemu-traditional --enable-rombios $seabios_opt $ovmf_opt
+        --disable-stubdom --disable-qemu-traditional \
+        --enable-rombios $seabios_opt $ovmf_opt
     $RAISIN_MAKE
     $RAISIN_MAKE install DESTDIR="$INST_DIR"
+    unset ETHERBOOT_NICS
     cd "$BASEDIR"
 }

Re: [PATCH] raisin: disable stubdoms and etherboot in xen

[Ian Campbell]

On Thu, 2015-11-12 at 16:12 +0000, Stefano Stabellini wrote:
> Similarly etherboot support requires downloading ipxe, so remove it for
> now.

FYI this only affects qemu-xen-trad, with qemu-xen the ipxe firmware comes
from elsewhere (the qemu-xen build IIRC)

Ian.

Re: [PATCH] raisin: disable stubdoms and etherboot in xen

[Stefano Stabellini]

On Thu, 12 Nov 2015, Ian Campbell wrote:
> On Thu, 2015-11-12 at 16:12 +0000, Stefano Stabellini wrote:
> > Similarly etherboot support requires downloading ipxe, so remove it for
> > now.
> 
> FYI this only affects qemu-xen-trad, with qemu-xen the ipxe firmware comes
> from elsewhere (the qemu-xen build IIRC)

QEMU ships with pre-built rom binaries under pc-bios.

Re: [PATCH] raisin: disable stubdoms and etherboot in xen

[George Dunlap]

On Thu, Nov 12, 2015 at 4:12 PM, Stefano Stabellini
<stefano.stabellini@eu.citrix.com> wrote:
> Raisin is about cloning (or downloading) components explicitly and
> independently, rather than having the Xen build system clone and build
> stuff as part of the build process.
>
> Unfortunately it is not possible to build stubdoms outside the Xen tree
> today, so just disable stubdoms for the moment.
>
> Similarly etherboot support requires downloading ipxe, so remove it for
> now.

So apart from stub domains, what does qemu-trad buy us over qemu-upstream now?

Also, would it make sense to make it possible to build with a system
ipxe?  That's what CentOS does, FWIW.

 -George

>
> With this patch, building Xen via Raisin doesn't fetch anything from the
> web, aside from what is configure in the config file.
>
> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
>
> ---
>
> diff --git a/components/xen b/components/xen
> index 090cceb..894d119 100644
> --- a/components/xen
> +++ b/components/xen
> @@ -42,10 +42,13 @@ function xen_build() {
>      then
>          ovmf_opt="--enable-ovmf --with-system-ovmf="$BASEDIR"/ovmf-dir/ovmf.bin"
>      fi
> +    export ETHERBOOT_NICS=""
>      ./configure --prefix=$PREFIX --with-system-qemu=$PREFIX/lib/xen/bin/qemu-system-i386 \
> -        --disable-qemu-traditional --enable-rombios $seabios_opt $ovmf_opt
> +        --disable-stubdom --disable-qemu-traditional \
> +        --enable-rombios $seabios_opt $ovmf_opt
>      $RAISIN_MAKE
>      $RAISIN_MAKE install DESTDIR="$INST_DIR"
> +    unset ETHERBOOT_NICS
>      cd "$BASEDIR"
>  }
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xen.org
> http://lists.xen.org/xen-devel

Re: [PATCH] raisin: disable stubdoms and etherboot in xen

[Stefano Stabellini]

On Mon, 16 Nov 2015, George Dunlap wrote:
> On Thu, Nov 12, 2015 at 4:12 PM, Stefano Stabellini
> <stefano.stabellini@eu.citrix.com> wrote:
> > Raisin is about cloning (or downloading) components explicitly and
> > independently, rather than having the Xen build system clone and build
> > stuff as part of the build process.
> >
> > Unfortunately it is not possible to build stubdoms outside the Xen tree
> > today, so just disable stubdoms for the moment.
> >
> > Similarly etherboot support requires downloading ipxe, so remove it for
> > now.
> 
> So apart from stub domains, what does qemu-trad buy us over qemu-upstream now?

Nothing, but it is useful to keep running VMs which are already running
under qemu-trad. I don't think we support live-migrating from qemu-trad
to QEMU.


> Also, would it make sense to make it possible to build with a system
> ipxe?  That's what CentOS does, FWIW.

Sure, please send a patch :-)

 
> >
> > With this patch, building Xen via Raisin doesn't fetch anything from the
> > web, aside from what is configure in the config file.
> >
> > Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
> >
> > ---
> >
> > diff --git a/components/xen b/components/xen
> > index 090cceb..894d119 100644
> > --- a/components/xen
> > +++ b/components/xen
> > @@ -42,10 +42,13 @@ function xen_build() {
> >      then
> >          ovmf_opt="--enable-ovmf --with-system-ovmf="$BASEDIR"/ovmf-dir/ovmf.bin"
> >      fi
> > +    export ETHERBOOT_NICS=""
> >      ./configure --prefix=$PREFIX --with-system-qemu=$PREFIX/lib/xen/bin/qemu-system-i386 \
> > -        --disable-qemu-traditional --enable-rombios $seabios_opt $ovmf_opt
> > +        --disable-stubdom --disable-qemu-traditional \
> > +        --enable-rombios $seabios_opt $ovmf_opt
> >      $RAISIN_MAKE
> >      $RAISIN_MAKE install DESTDIR="$INST_DIR"
> > +    unset ETHERBOOT_NICS
> >      cd "$BASEDIR"
> >  }
> >
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@lists.xen.org
> > http://lists.xen.org/xen-devel
>