Re: [PATCH v2 0/4] implement vcpu preempted check

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Thu, Jul 07, 2016 at 06:12:51PM +0800, Wanpeng Li wrote:

> Btw, do this in preemption
> notifier means that the vCPU is real preempted on host, however,
> depends on vmexit is different semantic I think.

Not sure; suppose the vcpu is about to reenter, eg, we're in
vcpu_enter_guest() but before the preempt_disable() and the thread gets
preempted. Are we then not preempted? The vcpu might still very much be
in running state but had to service an vmexit due to an MSR or IO port
or whatnot.


--
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



[Index of Archives]     [KVM ARM]     [KVM ia64]     [KVM ppc]     [Virtualization Tools]     [Spice Development]     [Libvirt]     [Libvirt Users]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite Questions]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux