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