Messages in this thread | | | Subject | Re: PATCH: MTRR save and restore. | From | Alan Cox <> | Date | 15 Apr 2003 21:28:41 +0100 |
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On Maw, 2003-04-15 at 21:18, Patrick Mochel wrote: > MTRRs are one interface to an x86 CPU. CPUs are already represented in the > device tree. The proper thing to do would be to have the CPU suspend/ > resume methods save and restore the MTRRs. It still requires an #ifdef in > the CPU code, but with a little work, could be massaged down a ways.
Also it has to be done kernel side for SMP because having mismatched MTRRs between processors is unsafe, yet lots of BIOSen get it wrong.
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