[LinuxBIOS] [PATCH] buildrom support for booting Xen from LAB

[Ward Vandewege]

This code is not very elegant, so if there are suggestions to improve it,
please shoot!

Thanks,
Ward.

[LinuxBIOS] buildrom support for booting Xen from LAB

[Jordan Crouse]

On 08/11/07 17:03 -0500, Ward Vandewege wrote:
> This code is not very elegant, so if there are suggestions to improve it,
> please shoot!
>
> Thanks,
> Ward.
> Make lab.conf parsing a bit smarter, allowing for 2 modules to be passed to
> kexec. This allows Xen booting, for instance with this lab.conf file:
>
> CMDLINE="com1=115200,8n1 cdb=com1"
> INITRD=""
> KERNEL="/xen-3.1.0.gz"
> MODULE1="/vmlinuz-2.6.18-xen root=/dev/md1 ro console=tty0 console=ttyS0,115200"
> MODULE2="/initrd.img-2.6.18-xen"
> VT="1"
>
> Of course a simple lab.conf file with kernel and initrd still works:
>
> CMDLINE="root=/dev/md1 ro console=tty0 console=ttyS0,115200"
> KERNEL="/vmlinuz-2.6.22-14-generic"
> INITRD="/initrd.img-2.6.22-14-generic"
> VT="1"
>
> Signed-off-by: Ward Vandewege

Acked-by: Jordan Crouse
> Index: skeleton/bin/boot.functions
>
> --- skeleton/bin/boot.functions	(revision 54)
> +++ skeleton/bin/boot.functions	(working copy)
> @@ -26,13 +26,25 @@
>    	. $DIR/lab.conf
>    fi
> if [ "$INITRD" = "" ]; then
> $DIR/kexec -l $DIR/$KERNEL --command-line="$CMDLINE"
> else
> $DIR/kexec -l $DIR/$KERNEL --initrd=$DIR/$INITRD --command-line="$CMDLINE"
> fi
>
> if [ "$INITRD" = "" ] && [ "$MODULE1" = "" ]; then
>
> $DIR/kexec -l $DIR/$KERNEL --command-line="$CMDLINE"
>
> elif [ "$INITRD" != "" ] && [ "$MODULE1" = "" ]; then
>
> $DIR/kexec -l $DIR/$KERNEL --initrd=$DIR/$INITRD --command-line="$CMDLINE"
>
> elif [ "$INITRD" = "" ] && [ "$MODULE1" != "" ]; then
>
> if [ "$MODULE2" != "" ]; then
>  $DIR/kexec -l $DIR/$KERNEL --module="$DIR/$MODULE1" --module="$DIR/$MODULE2" --command-line="$CMDLINE"
>
> else
>  $DIR/kexec -l $DIR/$KERNEL --module="$DIR/$MODULE1" --command-line="$CMDLINE"
>
> fi
>
> elif [ "$INITRD" != "" ] && [ "$MODULE1" != "" ]; then
>
> if [ "$MODULE2" != "" ]; then
>  $DIR/kexec -l $DIR/$KERNEL --initrd=$DIR/$INITRD --module="$DIR/$MODULE1" --module="$DIR/$MODULE2" --command-line="$CMDLINE"
>
> else
>  $DIR/kexec -l $DIR/$KERNEL --initrd=$DIR/$INITRD --module="$DIR/$MODULE1" --command-line="$CMDLINE"
>
> fi
>
> fi
>
> $DIR/kexec -e
> message "ERROR: can't run kexec $DIR/$KERNEL $CMDLINE $INITRD"
> message "ERROR: can't run kexec $DIR/$KERNEL $CMDLINE $INITRD $MODULE1 $MODULE2"
>
> }
>

[LinuxBIOS] buildrom support for booting Xen from LAB

[Ward Vandewege]

On Fri, Nov 09, 2007 at 01:23:25PM -0700, Jordan Crouse wrote:
> > Make lab.conf parsing a bit smarter, allowing for 2 modules to be passed to
> > kexec. This allows Xen booting, for instance with this lab.conf file:
> >
> > CMDLINE="com1=115200,8n1 cdb=com1"
> > INITRD=""
> > KERNEL="/xen-3.1.0.gz"
> > MODULE1="/vmlinuz-2.6.18-xen root=/dev/md1 ro console=tty0 console=ttyS0,115200"
> > MODULE2="/initrd.img-2.6.18-xen"
> > VT="1"
> >
> > Of course a simple lab.conf file with kernel and initrd still works:
> >
> > CMDLINE="root=/dev/md1 ro console=tty0 console=ttyS0,115200"
> > KERNEL="/vmlinuz-2.6.22-14-generic"
> > INITRD="/initrd.img-2.6.22-14-generic"
> > VT="1"
> >
> > Signed-off-by: Ward Vandewege
>
> Acked-by: Jordan Crouse

r55

Thanks,
Ward.