On 3/15/19 12:22 PM, Andrew Cooper wrote: > On 15/03/2019 15:59, Boris Ostrovsky wrote: >> On 3/15/19 11:23 AM, Andrew Cooper wrote: >>> Taking svm_feature_flags by pointer and using test_bit() results in >>> generated >>> code which loads svm_feature_flags into a 32bit register, then does a >>> bitwise >>> operation. >>> >>> The logic can be expressed in terms of a straight bitwise operation, >>> resulting >>> in the following minor improvement. >>> >>> add/remove: 0/0 grow/shrink: 0/4 up/down: 0/-136 (-136) >>> Function old new delta >>> svm_nested_features_on_efer_update 281 273 -8 >>> svm_create_vmcb 1404 1388 -16 >>> svm_vmexit_handler 6271 6239 -32 >>> start_svm 818 738 -80 >>> Total: Before=3347569, After=3347433, chg -0.00% >>> >>> Signed-off-by: Andrew Cooper <andrew.coop...@citrix.com> >> Reviewed-by: Boris Ostrovsky <boris.ostrov...@oracel.com> >> > I suppose you'd like me to fix up Oracle on commit? ;)
Oops, yes please. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
