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[Xen-users] problems with intel S5000VSA board and hvm

Hi @ll,

i use an intel S5000VSA server board with two xeon cpus. I installed a
debian squeeze amd64 system with debian xen and qemu packages.

Before i installed xen i check out successfully the virtualization flag
of cpus by

grep "vmx" /proc/cpuinfo

After installation of xen
(http://wiki.debian.org/Xen#Installation_on_squeeze) i can not run a hvm

xm dmesg | grep -i vmx

shows me this:

(XEN) CPU0: VMX disabled by BIOS.
(XEN) VMX: failed to initialise.

But the intel vt is enable in bios.

I change my grub config and add iommu=1 without any success.

menuentry 'Debian GNU/Linux, with Linux 2.6.32-5-xen-amd64 and XEN
4.0-amd64' --class debian --class gnu-linux --class gnu --class os
--class xen {
        insmod part_msdos
        insmod ext2
        set root='(hd0,msdos1)'
        search --no-floppy --fs-uuid --set 089f2a89-aa2b-4d22-bd01-32e70741eb3b
        echo    'Loading Linux 2.6.32-5-xen-amd64 ...'
        multiboot       /xen-4.0-amd64.gz placeholder iommu=1
        module  /vmlinuz-2.6.32-5-xen-amd64 placeholder
root=UUID=6cc16c2d-5f69-4ce5-b7c8-1bd0400ce89e ro  quiet
        echo    'Loading initial ramdisk ...'
        module  /initrd.img-2.6.32-5-xen-amd64

What can i do to enable hvm support?

Best regards

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