>>> On 21.09.15 at 11:46, <quan...@intel.com> wrote: >>> >>> On 21.09.15 at 16:51, < jbeul...@suse.com > wrote: >>- Anything else? > > > Just test the extreme case. The ATS specification mandates a timeout of 1 > _minute_ for cache flush, even though it doesn't take so much time for cache > flush. > In my design, if the Device-TLB is not completed, the domain's vCPUs are not > allowed entry guest mode (patch #7), otherwise, the logic is not correct.
Hmm, that would be a serious limitation, and I can't immediately see a reason: Taking this with virtualization removed, I don't think such an invalidation would stall a physical CPU for a whole minute. Sadly I also can't immediately think of a solution, but I guess first of all I'll have to take a look at the series (which unfortunately may take a few days to get to). Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
