Messages in this thread | | | Date | Wed, 19 Jun 2013 23:52:34 +0200 | From | Borislav Petkov <> | Subject | Re: [x86] only print out DR registers if they are not power-on defaults. |
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On Wed, Jun 19, 2013 at 02:42:49PM -0700, H. Peter Anvin wrote: > There is serious confusion with regards to DR6 about the bits which > are *fixed* (forced to 1) and the ones which are *reserved* (should > always have a fixed value.) > > There are some bits in DR6 which are used by hardware probes.
Haha, I knew it! HW guys don't care about the architectural documents.
Maybe DR6 should probably be dropped altogether from the check before exiting __show_regs early?
-- Regards/Gruss, Boris.
Sent from a fat crate under my desk. Formatting is fine. --
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