Virtual Machines and Memory Protections
Posted Nov 24, 2006 1:16 UTC (Fri) by davecb
In reply to: Virtual Machines and Memory Protections
Parent article: Virtual Machines and Memory Protections
Goodness gracious! That would make it extremely difficult to
do any decison dependant on who's making the system call, which
depends on having a process context.
Are you sure that's the case in Linux? Unix from v6 onwards
who's calling and what permissions they have. The whole
trusted computing base work (from which fine-grained permissions
come) is completely dependant on that, and SE Linux certainly
has the user's permissions, category and security level...
I can't imagine how normal Linux might avoid that.
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