On 07/19/2012 01:49 PM, Gleb Natapov wrote: >> All those exports suggest it's better to move the fast path into the >> emulator. > > We've already being through that. Putting the code into emulator gives > us nothing unless it also works on emulator context and working on > partially initialized emulator context is first dangerous and second > slower. We can make it work on an x86_pio_ctxt. What it gives us is common code. (x86_emulate_ctxt can include a x86_pio_ctxt when it does pio). > >> Suppose we change register access to use callbacks instead of >> bulk load/save, could we reuse the exising code? >> > I do not see that problem. This helper function do basic arithmetics > on three values. The value itself will be fetched on demand by the emulator. I meant to reduce the emulator initialization cost, so it isn't slow. btw, I'm guessing that the main speedup comes not from avoiding the decode, but by doing page-at-a-time instead of word-at-a-time. -- error compiling committee.c: too many arguments to function -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
