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Date: Tue, 6 Jan 2015 11:32:32 +0000
From: Anthony PERARD <anthony.perard@citrix.com>
Message-ID: <20150106113232.GE1705@perard.uk.xensource.com>
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Subject: Re: [Qemu-devel] bind interdomain ioctl error xen-kvm.c
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To: Rishi Ranjan <rishi.rranjan@gmail.com>
Cc: xen-devel@lists.xensource.com, qemu-devel@nongnu.org, Stefano Stabellini <stefano.stabellini@eu.citrix.com>

On Tue, Jan 06, 2015 at 11:11:48AM +0000, Anthony PERARD wrote:
> On Mon, Jan 05, 2015 at 11:10:34AM -0800, Rishi Ranjan wrote:
> > >>>> However Anthony (CC'ed) should have some patches for it.
> > Anthony, can you please share any patch that can help me with this?
> 
> Hi,
> 
> The "patches" are in two repos:
> git://xenbits.xen.org/people/aperard/xen-unstable.git
> branch: machine-q35-wip
> 
> git://xenbits.xen.org/people/aperard/qemu-dm.git
> branch: xen-q35-wip
> 
> For the xen tree, it's the 3 top commit, and the top commit for qemu.
> Once applied, hvmloader will only work with Q35 and not with the
> default machine.

To start a guest, I have this in the guest config:
disk = [ 'phy:/dev/mapper/vg-guest_q35,sda,w' ]
machine='q35'

If you wish, you can recompile only hvmloader and qemu and have
something like this in your guest config:
firmware_override      = '/root/hvmloader-q35'
device_model_override = '/root/qemu-xen-q35'
device_model_version = 'qemu-xen'
device_model_args_hvm = [ '-machine', 'q35,accel=xen' ]


Hope that help.

-- 
Anthony PERARD