Messages in this thread | | | Date | Tue, 13 Mar 2007 13:07:55 +0000 | From | Alan Cox <> | Subject | Re: [RFC] hwbkpt: Hardware breakpoints (was Kwatch) |
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On Tue, 13 Mar 2007 01:00:50 -0700 (PDT) Roland McGrath <roland@redhat.com> wrote:
> > Well, I can add in the test for 0, but finding the set of always-on bits > > in DR6 will have to be done separately. Isn't it possible that different > > CPUs could have different bits? > > I don't know, but it seems unlikely. AFAIK all CPUs are presumed to have > the same CPUID results, for example.
No. We merge the CPUID information to get a shared set of capability bits.
Generic PC systems with a mix of PII and PIII are possible. The voyager architecture can have even more peculiar combinations of processor modules installed.
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