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    SubjectRe: Linux guest kernel threat model for Confidential Computing
    On Thu, Jan 26, 2023 at 04:44:49PM +0100, Lukas Wunner wrote:
    > Obviously the host can DoS guest access to the device by modifying
    > exchanged messages, but there are much simpler ways for it to
    > do that, say, by clearing Bus Master Enable or Memory Space Enable
    > bits in the Command Register.

    There's a single key per guest though, isn't it? Also used
    for regular memory?


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