4 ms·
Hmm, are x86 debug registers not stored along with all of the other registers during context switch? Or why is that more secure?
by sillysaurus 14y ago
Hmm, are x86 debug registers not stored along with all of the other registers during context switch? Or why is that more secure?
- foxhill 14y agono, they are only accessible in ring 0, so only the kernel has access to them. turns out there was a patch for the linux kernel[1] to do it. [1] - http://en.wikipedia.org/wiki/TRESOR http://en.wikipedia.org/wiki/TRESOR