Messages in this thread | | | Date | Thu, 26 Jan 2023 11:25:21 -0500 | From | "Michael S. Tsirkin" <> | Subject | Re: Linux guest kernel threat model for Confidential Computing |
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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?
-- MST
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