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Re: [Xen-devel] [PATCH] xen: implement vector callback for evtchn delivery

On Thu, 27 May 2010, Boris Derzhavets wrote:
> <disk type="block" device="disk">
> <driver name="phy"/>
> <source dev="/dev/sda7"/>
> <target dev="hda" bus="ide"/>
> </disk>
> <disk type="file" device="cdrom">
> <target dev="hdc" bus="ide"/>
> <readonly/>

I am pretty sure that the interrupts on the ata_piix device are due to
the cdrom that has been used through the emulated interface.
Using xend/xl, it is possible to make sure your guest can use the pv
interface for the cdrom too, specifying xvdc instead of hdc as virtual

disk = [ 'file:/path/to/iso,xvdc:cdrom,r' ]

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