Messages in this thread | | | Date | Thu, 26 Mar 2009 10:11:53 +0100 | From | Ingo Molnar <> | Subject | Re: [PATCH] x86: don't compile vsmp_64 for 32bit |
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* Ravikiran G Thirumalai <kiran@scalex86.org> wrote:
> > unsynchronized_tsc() just returns a guess anyway, and if you > > don't have X86_FEATURE_CONSTANT_TSC set, then it will return > > unstable for your hardware anyway, even without the > > is_vsmp_box() test. > > Unfortunately we use hardware which has X86_FEATURE_CONSTANT_TSC. > > > > > Failing that, you could add yourself to bad_tsc_dmi_table[] and > > have that mark the tsc as unstable (you have DMI, right?). > > > > Newer versions of the VMM does, but older ones don't :(, and > obviously we have older versions out in the field that still needs > to be supported.
But those old versions wont have X86_FEATURE_CONSTANT_TSC set, right?
Ingo
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