On 01/31/2013 12:21:07 PM, Alexander Graf wrote:
How about something like this? Then both targets at least suck as much :).
I'm not sure that should be the goal...
Thanks to e500mc's awful hardware design, we don't know who sets the MSR_DE bit. Once we forced it onto the guest, we have no change to know whether the guest also set it or not. We could only guess.
MSRP[DEP] can prevent the guest from modifying MSR[DE] -- but we still need to set it in the first place.
According to ISA V2.06B, the hypervisor should set DBCR0[EDM] to let the guest know that the debug resources are not available, and that "the value of MSR[DE] is not specified and not modifiable".
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