[PATCH 4.7 062/184] x86/AMD: Apply erratum 665 on machines without a BIOS fix

4.7-stable review patch. If anyone has any objections, please let me know. -- From: Emanuel Czirai commit d1992996753132e2dafe955cccb2fb0714d3cfc4 upstream. AMD F12h machines have an erratum which can cause DIV/IDIV to behave unpredictably. The

[PATCH 4.7 062/184] x86/AMD: Apply erratum 665 on machines without a BIOS fix

4.7-stable review patch. If anyone has any objections, please let me know. -- From: Emanuel Czirai commit d1992996753132e2dafe955cccb2fb0714d3cfc4 upstream. AMD F12h machines have an erratum which can cause DIV/IDIV to behave unpredictably. The workaround is to set