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    SubjectRe: [PATCH v3 00/12] KVM: Add host swap event notifications for PV guest
    On 01/08/2010 02:30 PM, Bryan Donlan wrote:
    > On Fri, Jan 8, 2010 at 2:24 PM, Rik van Riel<riel@redhat.com> wrote:
    >> On 01/08/2010 11:18 AM, Marcelo Tosatti wrote:
    >>
    >>> - Limit the number of queued async pf's per guest ?
    >>
    >> This is automatically limited to the number of processes
    >> running in a guest :)
    >
    > Only if the guest is nice and plays by the rules. What is to stop a
    > malicious guest from just immediately switching back to userspace and
    > kicking off another page-in every time it gets an async PF?

    Good point, a malicious guest could do that and ruin
    things for everyone. I guess we do need a limit :)

    --
    All rights reversed.


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