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Date: Wed, 25 Jun 2014 16:48:02 +0800
From: "Chen, Tiejun" <tiejun.chen@intel.com>
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Subject: Re: [Qemu-devel] [v5][PATCH 2/5] xen,
 gfx passthrough: create pseudo intel isa bridge
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To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: peter.maydell@linaro.org, xen-devel@lists.xensource.com, stefano.stabellini@eu.citrix.com, allen.m.kay@intel.com, qemu-devel@nongnu.org, Kelly.Zytaruk@amd.com, yang.z.zhang@intel.com, anthony@codemonkey.ws, anthony.perard@citrix.com, pbonzini@redhat.com

On 2014/6/25 16:43, Michael S. Tsirkin wrote:
> On Wed, Jun 25, 2014 at 04:39:07PM +0800, Chen, Tiejun wrote:
>>> In fact it's exactly what passthrough does.
>>> I wonder if more bits from ./hw/i386/kvm/pci-assign.c
>>> can be reused. How do you poke at the host device? sysfs?
>>
>> Yes, sysfs.
>>
>> Thanks
>> Tiejun
>
> Then you should be able to re-use large chunks of
> ./hw/i386/kvm/pci-assign.c: basically everything
> that deals with emulation.

Do you mean those hooks to get info from the real device? Xen have its 
own wrapper, xen_host_pci_get_block(), so we always go there in xen 
scenario.

Thanks
Tiejun
>
>
>
>