Re: [kvm-devel] kvm-devel Digest, Vol 6, Issue 61

2007-04-04 Thread Casey Jeffery
Stephane > > >There may be some propagation delay yet you, supposedly, do not suffer > > >from masked > > >interrupt windows. Also something to watch out for is that when you restore > > >you must make sure that msrs upper bits are set to 1. Otherwise you may > > >trigger > > >unvoluntary interrup

Re: [kvm-devel] kvm-devel Digest, Vol 6, Issue 61

2007-04-04 Thread Stephane Eranian
Casey, On Tue, Apr 03, 2007 at 10:46:38PM -0400, Casey Jeffery wrote: > Stephane, > > I'm glad you found this; I thought I was going to have to repost while > actually remembering to change the subject line. > Someone else pointed me to your message. The title was indeed misleading. > >On Wed,

Re: [kvm-devel] kvm-devel Digest, Vol 6, Issue 61

2007-04-03 Thread Casey Jeffery
Stephane, I'm glad you found this; I thought I was going to have to repost while actually remembering to change the subject line. > On Wed, Mar 28, 2007 at 01:02:47PM -0400, Casey Jeffery wrote: > > I was messing around with using the perf counters a couple weeks ago > > as a way to get determini

Re: [kvm-devel] kvm-devel Digest, Vol 6, Issue 61

2007-04-03 Thread Stephane Eranian
Casey, On Wed, Mar 28, 2007 at 01:02:47PM -0400, Casey Jeffery wrote: > I was messing around with using the perf counters a couple weeks ago > as a way to get deterministic exits in the instruction stream of the > guest. I used the h/w msr save/restore area to disable the counters > and save the v

Re: [kvm-devel] kvm-devel Digest, Vol 6, Issue 61

2007-03-28 Thread Casey Jeffery
I was messing around with using the perf counters a couple weeks ago as a way to get deterministic exits in the instruction stream of the guest. I used the h/w msr save/restore area to disable the counters and save the values on guest exit and restore them on entry. I also set up the LVT to deliver