On 4/22/2011 3:56 PM, john gilmore wrote:
What has interested me more about this thread has been its preoccupation with SVCs, which are at best obsolescent. There is nothing anyone can do with an SVC that I cannot do, much less obtrusively, with a PC-based scheme.
SVCs offer a nice screening facility that operates at the TCB level. If you screw that up, only one TCB feels pain.
You can't screen PCs. Well, you can at a system level by essentially 'hi-jacking' the entry point. If you screw that up, the whole system feels the pain.
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