Re: [PATCH 1/3] KVM: make halt_poll_ns per-VCPU

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

 



On Mon, Aug 24, 2015 at 5:53 AM, Wanpeng Li <wanpeng.li@xxxxxxxxxxx> wrote:
> Change halt_poll_ns into per-VCPU variable, seeded from module parameter,
> to allow greater flexibility.

You should also change kvm_vcpu_block to read halt_poll_ns from
the vcpu instead of the module parameter.

>
> Signed-off-by: Wanpeng Li <wanpeng.li@xxxxxxxxxxx>
> ---
>  include/linux/kvm_host.h | 1 +
>  virt/kvm/kvm_main.c      | 1 +
>  2 files changed, 2 insertions(+)
>
> diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
> index 81089cf..1bef9e2 100644
> --- a/include/linux/kvm_host.h
> +++ b/include/linux/kvm_host.h
> @@ -242,6 +242,7 @@ struct kvm_vcpu {
>         int sigset_active;
>         sigset_t sigset;
>         struct kvm_vcpu_stat stat;
> +       unsigned int halt_poll_ns;
>
>  #ifdef CONFIG_HAS_IOMEM
>         int mmio_needed;
> diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
> index d8db2f8f..a122b52 100644
> --- a/virt/kvm/kvm_main.c
> +++ b/virt/kvm/kvm_main.c
> @@ -217,6 +217,7 @@ int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id)
>         vcpu->kvm = kvm;
>         vcpu->vcpu_id = id;
>         vcpu->pid = NULL;
> +       vcpu->halt_poll_ns = halt_poll_ns;
>         init_waitqueue_head(&vcpu->wq);
>         kvm_async_pf_vcpu_init(vcpu);
>
> --
> 1.9.1
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@xxxxxxxxxxxxxxx
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at  http://www.tux.org/lkml/
--
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