Re: [Xen-devel] [PATCH] Allow wake up of offline vcpu via nmi-ipi

[Keir Fraser <keir.xen@xxxxxxxxx>]

On 18/01/2012 08:48, "Juergen Gross" <juergen.gross@xxxxxxxxxxxxxx> wrote:

> On a real machine a cpu disabled via hlt with interrupts disabled can be
> reactivated via a nmi ipi. Enable the hypervisor to do this for hvm, too.

I think the vcpu_kick() path is still needed where the vcpu is HLTed with
interrupts enabled. I'll have to give this a bit of thought... Probably
 clear_bit(_VPF_down)
 vcpu_wake()
 vcpu_kick()
Would work just fine.

 -- Keir

> Signed-off-by: juergen.gross@xxxxxxxxxxxxxx
> 
> 
> 1 file changed, 4 insertions(+), 1 deletion(-)
> xen/arch/x86/hvm/vlapic.c |    5 ++++-
> 
> 
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