Re: [Xen-devel] [RFC PATCH 0/15]: PVH xen: Patches for PVH guests

[Mukesh Rathor <mukesh.rathor@xxxxxxxxxx>]

On Wed, 16 Jan 2013 09:58:13 +0100
Roger Pau Monnà <roger.pau@xxxxxxxxxx> wrote:

> Dom0 seems to also fail booting as PVH mode, but it doesn't print
> much info regarding the failure (maybe you are able to make more
> sense out of it than me):

> (XEN) <vm_launch_fail> error code 7

Hey Roger, thanks for the patience. Hmm.. err code 7 is :

   "7 VM entry with invalid control field(s)",

So we need to see what control fields are in the VMCS. Can you please
add to : vm_launch_fail():

void vm_launch_fail(void)
{
    unsigned long error = __vmread(VM_INSTRUCTION_ERROR);
    printk("<vm_launch_fail> error code %lx\n", error);

    vmcs_dump_vcpu(current);
...
}

Just for ease, please boot with one cpu and one vcpu.

Also, can you please compile xen with debug=n and try also.

I'm also trying on different machine here as I type this.

Thanks again,
Mukesh


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