Messages in this thread | | | Date | Mon, 19 Jan 2009 14:14:35 -0800 | From | Suresh Siddha <> | Subject | Re: Fail to early boot with v2.6.27-rc2 to at least v2.6.29-rc2 due to dc1e35c |
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On Mon, Jan 19, 2009 at 02:07:36PM -0800, H. Peter Anvin wrote: > Suresh Siddha wrote: > > > > Also, I wonder, if we should complain/scream during boot if we find only > > fewer cpuid levels on modern generation cpu's. > > > > We should, or if this block is reversible, we should probably just undo > it (the reason people put this block in places is because of, ahem, > inferior operating systems having bugs.) > > Do you know how this is managed? Via an MSR?
IA32_MISC_ENABLE MSR bit 22
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