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Re: [libvirt] [PATCH v3 0/5] RFC: grant KVM guests retain arbitrary capabilities



On Thu, Jan 19, 2012 at 01:32:08PM -0700, Eric Blake wrote:
> On 01/18/2012 12:38 AM, Taku Izumi wrote:
> >> I am now wondering if we should do this in a different way. ie if
> >> there is some XML configuration parameter for the <disk> that 
> >> indicates the need for rawio, then libvirt could automatically
> >> ensures that we add CAP_SYS_RAWIO when starting QEMU.
> > 
> >    I see.
> >    You say if a guest has the following XML configuration,
> >    "CAP_SYS_RAWIO" capability is automatically added to it, right?
> >   
> >      <disk type='block' device='lun'>
> 
> Yes, that actually seems reasonable, especially since device='lun' is
> brand new, and so far, is really the only reason that we'd need
> CAP_SYS_RAWIO.

Does device='lun' really require CAP_SYS_RAWIO ?  I hadn't seen that
mentioned before now


Daniel
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