KVM is a part of Linux. It uses linux functions to operate, for example, it will call get_user_pages and it returns to a linux user space process for emulation work. If these functions don't run in real time, you can't make real time guarantees to guests (this is a simplified view, but serves for illustration). What Alex is suggesting is that if you can provide real time guarantees in Linux, then you can potentially integrate this with KVM somehow, and make some real-time guarantees for guests on KVM. -Christoffer On Mon, Oct 8, 2012 at 3:43 PM, sanju james <sanjukuttu@xxxxxxxxx> wrote: > pls see below and i didn't understand what he meant...i asked for hypervisor > in arm which support real time fns....he replied that rt patches are in > existing one..am not sure is it correct or not? > > > On Mon, Oct 8, 2012 at 9:37 PM, Alexander Graf <agraf@xxxxxxx> wrote: >> >> Am 08.10.2012 um 21:23 schrieb sanju james <sanjukuttu@xxxxxxxxx>: >> >> is there a possibility to separate out KVM and embed it into a new real >> time capable linux or is there a developed version like that? >> >> >> You can always marry the preempt rt patch and kvm :). There have been >> multiple talks about this on previous kvm forums. >> >> Alex >> >> >> On Mon, Oct 8, 2012 at 9:20 PM, Alexander Graf <agraf@xxxxxxx> wrote: >>> >>> >>> On 08.10.2012, at 21:17, sanju james wrote: >>> >>> Hi, >>> >>> I am master student in University of paderborn in Germany. I am planing >>> to do a thesis ( 5 months) . I have installed the kvm-linux host and ran >>> the guest os. I am now trying to change the linux host with a real time os >>> developed in our university. I would like know what kind of dependency >>> are there between linux kernel and kvm . >>> >>> To port it into a new real time os , how much effort we need for it since >>> my thesis period is 5 months would it be practical to do such a task. >>> >>> >>> The whole point of KVM is that it's integrated into Linux :). If you >>> don't need/want that integration, a different style hypervisor might be your >>> better choice. >>> >>> >>> Alex >>> >> > > > _______________________________________________ > kvmarm mailing list > kvmarm@xxxxxxxxxxxxxxxxxxxxx > https://lists.cs.columbia.edu/cucslists/listinfo/kvmarm _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/cucslists/listinfo/kvmarm
