RE: [PATCH v2 1/2] KVM: x86: Use vector-hashing to deliver lowest-priority interrupts

From	"Wu, Feng" <feng.wu@intel.com>
Newsgroups	linux.kernel
Subject	RE: [PATCH v2 1/2] KVM: x86: Use vector-hashing to deliver lowest-priority interrupts
Date	2016-01-19 14:50 +0100
Message-ID	<qSEPv-8d-1@gated-at.bofh.it> (permalink)
References	(2 earlier) <qIVeV-42B-9@gated-at.bofh.it> <qSayc-4yP-3@gated-at.bofh.it> <qSfxM-7SR-3@gated-at.bofh.it> <qSwoV-2D4-1@gated-at.bofh.it> <qSEPv-8d-3@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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> -----Original Message-----
> From: linux-kernel-owner@vger.kernel.org [mailto:linux-kernel-
> owner@vger.kernel.org] On Behalf Of Paolo Bonzini
> Sent: Tuesday, January 19, 2016 9:43 PM
> To: Wu, Feng <feng.wu@intel.com>; Radim Krcmár <rkrcmar@redhat.com>
> Cc: kvm@vger.kernel.org; linux-kernel@vger.kernel.org
> Subject: Re: [PATCH v2 1/2] KVM: x86: Use vector-hashing to deliver lowest-
> priority interrupts
> 
> 
> 
> On 19/01/2016 05:44, Wu, Feng wrote:
> > > I think Radim's suggestion is fine.  You can print an error (just once
> > > per guest) to dmesg if the result of the hashing computation corresponds
> > > to a disabled APIC.
> >
> > Good idea, is there already a convenient way to do this in KVM?
> 
> No, you can just use something like the definition of printk_once (in
> include/linux/printk.h), but with a flag in struct kvm_arch.

Yes, that is a possible solution, if you don't think adding a flag in struct
kvm_arch is not too overkill, I am fine with this. :)

Thanks,
Feng

Thread

RE: [PATCH v2 1/2] KVM: x86: Use vector-hashing to deliver  lowest-priority interrupts "Wu, Feng" <feng.wu@intel.com> - 2016-01-18 06:30 +0100
  Re: [PATCH v2 1/2] KVM: x86: Use vector-hashing to deliver  lowest-priority interrupts Paolo Bonzini <pbonzini@redhat.com> - 2016-01-18 11:50 +0100
    RE: [PATCH v2 1/2] KVM: x86: Use vector-hashing to deliver  lowest-priority interrupts "Wu, Feng" <feng.wu@intel.com> - 2016-01-19 05:50 +0100
      RE: [PATCH v2 1/2] KVM: x86: Use vector-hashing to deliver  lowest-priority interrupts "Wu, Feng" <feng.wu@intel.com> - 2016-01-19 14:50 +0100
      Re: [PATCH v2 1/2] KVM: x86: Use vector-hashing to deliver  lowest-priority interrupts Paolo Bonzini <pbonzini@redhat.com> - 2016-01-19 14:50 +0100
  Re: [PATCH v2 1/2] KVM: x86: Use vector-hashing to deliver  lowest-priority interrupts Radim Krcmár <rkrcmar@redhat.com> - 2016-01-18 15:10 +0100

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