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由 Vivek Goyal 提交于
EFER varies like %cr4 depending on the cpu capabilities, and which cpu capabilities we want to make use of. So save/restore it make certain we have the same EFER value when we are done. Signed-off-by: NEric W. Biederman <ebiederm@xmission.com> Signed-off-by: NVivek Goyal <vgoyal@in.ibm.com> Signed-off-by: NAndi Kleen <ak@suse.de>
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