> -----Original Message----- > From: Avi Kivity [mailto:avi@xxxxxxxxxx] > Sent: Tuesday, April 12, 2011 8:09 PM > To: Bhushan Bharat-R65777 > Cc: kvm@xxxxxxxxxxxxxxx; bharatb.yadav@xxxxxxxxx > Subject: Re: [Proposal] QEMU-KVM Interface for granting Performance > Monitor to guests > > On 04/12/2011 10:29 AM, Bhushan Bharat-R65777 wrote: > > Hi All, > > > > The proposal is to about defining the qemu-kvm interface for reserving > the performance monitor for guest(guests) in Embedded Power Architecture. > The plan is to reserve the Performance Monitor for guest/s on guest boot- > up and will be released only on guest reset/exit. If a Performance > Monitor reserved by host then it can't be reserved for guest and vice- > versa. So when Performance monitor is reserved by host then performance > monitor can't be used by guests and if reserved by guest then it should > not be used by host. > > In general we greatly prefer sharing vs. reservation (there are > exceptions, for example PCI device assignment). > > Is there a compelling reason to assign the performance monitor to a > single guest? No, Guest can share with other guests but not with host. Thanks -Bharat -- 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
