Groups > linux.kernel > #1320213

RE: [PATCH v4 2/4] KVM: x86: Use vector-hashing to deliver lowest-priority interrupts

From	"Wu, Feng" <feng.wu@intel.com>
Newsgroups	linux.kernel
Subject	RE: [PATCH v4 2/4] KVM: x86: Use vector-hashing to deliver lowest-priority interrupts
Date	2016-01-28 03:00 +0100
Message-ID	<qVK2m-4kg-3@gated-at.bofh.it> (permalink)
References	<qULtw-1Kq-3@gated-at.bofh.it> <qULtx-1Kq-9@gated-at.bofh.it> <qVh0n-8go-27@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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> -----Original Message-----
> From: Radim Krčmář [mailto:rkrcmar@redhat.com]
> Sent: Wednesday, January 27, 2016 2:59 AM
> To: Wu, Feng <feng.wu@intel.com>
> Cc: pbonzini@redhat.com; linux-kernel@vger.kernel.org; kvm@vger.kernel.org
> Subject: Re: [PATCH v4 2/4] KVM: x86: Use vector-hashing to deliver lowest-
> priority interrupts
> 
> 2016-01-25 16:53+0800, Feng Wu:
> > Use vector-hashing to deliver lowest-priority interrupts, As an
> > example, modern Intel CPUs in server platform use this method to
> > handle lowest-priority interrupts.
> >
> > Signed-off-by: Feng Wu <feng.wu@intel.com>
> > ---
> 
> With any proposed resolution of BUG_ON in kvm_vector_to_index,
> 
> Reviewed-by: Radim Krčmář <rkrcmar@redhat.com>
> 
> > diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
> > @@ -123,6 +123,9 @@ module_param(tsc_tolerance_ppm, uint, S_IRUGO |
> S_IWUSR);
> > +bool __read_mostly vector_hashing = true;
> 
> (Module param can be static.)
> 
> > +module_param(vector_hashing, bool, S_IRUGO);

Thanks a lot for your comments, Radim & Paolo! 

Paolo, given that the only two comments above, do I need to send v5? Or
you can handle it while merging them? I am fine with both methods.

Thanks,
Feng

Thread

[PATCH v4 2/4] KVM: x86: Use vector-hashing to deliver lowest-priority interrupts Feng Wu <feng.wu@intel.com> - 2016-01-25 10:20 +0100
  Re: [PATCH v4 2/4] KVM: x86: Use vector-hashing to deliver  lowest-priority interrupts Radim Krčmář <rkrcmar@redhat.com> - 2016-01-26 20:00 +0100
    RE: [PATCH v4 2/4] KVM: x86: Use vector-hashing to deliver  lowest-priority interrupts "Wu, Feng" <feng.wu@intel.com> - 2016-01-28 03:00 +0100
      Re: [PATCH v4 2/4] KVM: x86: Use vector-hashing to deliver  lowest-priority interrupts Paolo Bonzini <pbonzini@redhat.com> - 2016-01-29 09:20 +0100
        RE: [PATCH v4 2/4] KVM: x86: Use vector-hashing to deliver  lowest-priority interrupts "Wu, Feng" <feng.wu@intel.com> - 2016-01-29 09:30 +0100

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