how to boot Xen Dom0 in Grub2 SVN trunk

[uzer cheg]

Dear all,
I'd like to ask you for an advice regarding Xen Dom0 support in
current Grub2 trunk.
Has anybody tried to boot Xen Dom0 by Grub2 on latest versions (r 2322
for instance)?

I installed Debian Linux 5.0 (lenny) with Dom0.
It works fine and loads in Xen Dom0 via legacy grub supplied by Debian.
Than I got latest grub2 via svn and built it as usual. Also I made
custom /grub2/core.img by grub-mkimage
On start computer loads old legacy grub. Than it loads grub2 as
# kernel /grub2/core.img
Grub2 starts fine and I try to load Xen.
menuentry "xen" {

         multiboot /boot/xen-3.2-1-amd64.gz dom0_mem=640M
         module /boot/vmlinuz-2.6.26-1-amd64 root=/dev/mapper/mainVG-rootLV ro
         module /boot/initrd.img-2.6.26-1-amd64

}

It tries to boot and crash with message
...
(XEN) Early fatal page fault at e008:ffff828c801da4a2 ... etc
(XEN) Stack dump

I tried to load xen by using command
multiboot /boot/xen-3.2-1-amd64.gz dom0_mem=640M

Result was the same.


Please remeber that the same Xen Dom0 boots Ok via grub legacy.

Do I have to add any special commands to grub2.cfg ?

Is it Xen's fault and do I have to upgrade it?


Thank you in advance.