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But if you use AMD ASID it blocks this as memory mappings for VM guests are in a completely separate address space. What I was wondering was for local OS user
by tankenmate 9y ago
But if you use AMD ASID it blocks this as memory mappings for VM guests are in a completely separate address space.
What I was wondering was for local OS user mode to local OS root / kernel mode access; i.e. user to kernel privilege escalation.
- caf 9y agoIt isn't obvious at all how a separate address space would block that method. What would block it is flushing the branch predictor state when switching privilege levels and/or address spaces.
- deleted 9y ago[deleted]