On 03/03/20 17:35, Vitaly Kuznetsov wrote: >> >> "f3 a5" is a "rep movsw" instruction, which should not be intercepted >> at all. Commit c44b4c6ab80e ("KVM: emulate: clean up initializations in >> init_decode_cache") reduced the number of fields cleared by >> init_decode_cache() claiming that they are being cleared elsewhere, >> 'intercept', however, is left uncleared if the instruction does not have >> any of the "slow path" flags (NotImpl, Stack, Op3264, Sse, Mmx, CheckPerm, >> NearBranch, No16 and of course Intercept itself). > Much better, thanks) Please let me know if you want me to resubmit. No need, thanks. Paolo