Re: [PATCH 4/5] Userspace changes for KVM HPET (v6)

2009-06-14 Thread Avi Kivity
Avi Kivity wrote: Beth Kon wrote: The big change here is handling of enabling/disabling of hpet legacy mode. When hpet enters legacy mode, the spec says that the pit stops generating interrupts. In practice, we want to stop the pit periodic timer from running because it is wasteful in a virtua

Re: [PATCH 4/5] Userspace changes for KVM HPET (v6)

2009-06-14 Thread Avi Kivity
Beth Kon wrote: The big change here is handling of enabling/disabling of hpet legacy mode. When hpet enters legacy mode, the spec says that the pit stops generating interrupts. In practice, we want to stop the pit periodic timer from running because it is wasteful in a virtual environment. W

[PATCH 4/5] Userspace changes for KVM HPET (v6)

2009-06-11 Thread Beth Kon
The big change here is handling of enabling/disabling of hpet legacy mode. When hpet enters legacy mode, the spec says that the pit stops generating interrupts. In practice, we want to stop the pit periodic timer from running because it is wasteful in a virtual environment. We also have to wo