On Wed, Mar 24, 2010 at 05:49:42PM +0200, Avi Kivity wrote: > On 03/24/2010 05:46 PM, Joerg Roedel wrote: >> On Wed, Mar 24, 2010 at 05:12:55PM +0200, Avi Kivity wrote: >> >>> On 03/24/2010 05:01 PM, Joerg Roedel wrote: >>> >>>> $ cd /sys/kvm/guest0 >>>> $ ls -l >>>> -r-------- 1 root root 0 2009-08-17 12:05 name >>>> dr-x------ 1 root root 0 2009-08-17 12:05 fs >>>> $ cat name >>>> guest0 >>>> $ # ... >>>> >>>> The fs/ directory is used as the mount point for the guest root fs. >>>> >>> The problem is /sys/kvm, not /sys/kvm/fs. >>> >> I am not tied to /sys/kvm. We could also use /proc/<pid>/kvm/ for >> example. This would keep anything in the process space (except for the >> global list of VMs which we should have anyway). >> > > How about ~/.qemu/guests/$pid? That makes it hard for perf to find it and even harder to get a list of all VMs. With /proc/<pid>/kvm/guest we could symlink all guest directories to /proc/kvm/ and perf reads the list from there. Also perf can easily derive the directory for a guest from its pid. Last but not least its kernel-created and thus independent from the userspace part being used. Joerg -- 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
