> From: sanju james <sanjukuttu@xxxxxxxxx> > Subject: Timer Interupts > To: kvmarm@xxxxxxxxxxxxxxxxxxxxx > Message-ID: > <CADjSRHTz5m+wPhd7d4O52jBUuVNorMXE-o0Hdufat9tFyF2kbw@xxxxxxxxxxxxxx> > Content-Type: text/plain; charset="iso-8859-1" > > Hi, > > I would like to know about timer interupts in linux kvm. Can timer > interupts from host forwarded to the guest using kvm ? > > Regards, > > Sanjul As far as I know, the guest kernel use the virtual timer of Arch_timer(the real hardware) to trigger a physical interrupt, and then, the guest kernel will be VM_EXIT. Next,KVM will inject a virtual interrupt (timer's) to VGIC that KVM simulated. Last, when kvm restore content, all pending interrupts in VGIC will be writed in GICH_LRS(real hardware). So the guest kernel can recive the timer interrupt when VM_ENTRY. I hope this answer can help you! -- Regards Wang Haibin _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/cucslists/listinfo/kvmarm
