Commits
Borislav Petkov committed 328935e6348
Revert "x86, AMD: Fix APIC timer erratum 400 affecting K8 Rev.A-E processors" This reverts commit e20a2d205c05cef6b5783df339a7d54adeb50962, as it crashes certain boxes with specific AMD CPU models. Moving the lower endpoint of the Erratum 400 check to accomodate earlier K8 revisions (A-E) opens a can of worms which is simply not worth to fix properly by tweaking the errata checking framework: * missing IntPenging MSR on revisions < CG cause #GP: http://marc.info/?l=linux-kernel&m=130541471818831 * makes earlier revisions use the LAPIC timer instead of the C1E idle routine which switches to HPET, thus not waking up in deeper C-states: http://lkml.org/lkml/2011/4/24/20 Therefore, leave the original boundary starting with K8-revF. Signed-off-by: Ingo Molnar <mingo@elte.hu>