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xen-devel
Re: [Xen-devel] Xen security advisory CVE-2011-1898 - VT-d (PCI passthro
On Fri, 2011-05-13 at 12:08 +0100, Joanna Rutkowska wrote:
> On 05/13/11 10:08, Jan Beulich wrote:
> > Finally, wouldn't killing all guests that potentially could have caused
> > the problem be a better measure than bringing down the host?
> >
>
> Killing the guest might no longer be enough, because the guest might
> have already programmed the device to keep sending malicious MSIs.
Is it even possible to know which guest triggered the MSI, or is the
best you can do the set of all guests with an MSI capable device passed
through?
Ian.
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