Actually I'm waiting b/c I'm defending my thesis tomorrow. I might get v2 out before then, but no guarantee.
On Jul 31, 2011 2:57 PM, "Konrad Rzeszutek Wilk" <konrad.wilk@xxxxxxxxxx
> On Fri, Jul 29, 2011 at 08:31:35AM -0700, Jeremy Fitzhardinge wrote:
>> On 07/29/2011 05:51 AM, Andrew Lutomirski wrote:
>> > VCGF_in_syscall: gettimeofday() (the syscall version) takes 593 ns.
>> > Without VCGF_in_syscall, it's 712 ns.
>> > I'd argue for using my original approach of adding a user_64bit_mode
>> > function -- I think it's a legitimate cleanup and Xen, for better or
>> > worse, really does have two long mode CPL 3 selectors. If we removed
>> > selector 6 from the GDT, that would be a different story, but that
>> > would probably be a more intrusive change.
>> Sigh. Yeah, let's see what happens.
> So.. roll with Andrew's patches? I think Andrew is just waiting for the word
> from you whether to repost the patches so that x86 maintainers can take a look
> at them..