On Tue, Jul 10, 2012 at 03:50:39PM +0300, Avi Kivity wrote: > On 07/10/2012 01:48 PM, Gleb Natapov wrote: > > > > > > > > > But the code is already here, why drop it? > > > > > > The read cache is not effective for multiple disjunct reads. > > What do you mean? > > If an instruction reads from several sources in mmio, then the first > read will be flushed from the cache by the second read. So if we need a > third read, we'll have to exit for the first again. > The cache is flashed only before instruction decode, never during emulation. -- Gleb. -- 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
