From: Paolo Bonzini <pbonzini@redhat.com>
To: Radim Krcmar <rkrcmar@redhat.com>
Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
Alex Williamson <alex.williamson@redhat.com>
Subject: Re: [PATCH 1/3] KVM: x86: merge kvm_arch_set_irq with kvm_set_msi_inatomic
Date: Mon, 2 Nov 2015 18:05:20 +0100 [thread overview]
Message-ID: <563797D0.7050109@redhat.com> (raw)
In-Reply-To: <20151102170156.GA28717@potion.brq.redhat.com>
On 02/11/2015 18:01, Radim Krcmar wrote:
>> > Yes. Both because the Virtuozzo people confirmed that kvm_arch_set_irq
>> > isn't needed for synic, and because synic is currently broken with APICv.
> Thanks.
>
> (We can add direct delivery for |online vcpus| < X if performance with
> low number of VCPUs happens to regress because of the schedule_work,)
Yeah, we will change the VFIO interrupt handler to non-threaded, which
will do more or less the same (what you lose now through schedule_work,
you will recoup by doing things directly in the ISR).
Paolo
next prev parent reply other threads:[~2015-11-02 17:05 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-02 12:21 [PATCH 0/3] KVM: x86: clean up interrupt injection Paolo Bonzini
2015-11-02 12:21 ` [PATCH 1/3] KVM: x86: merge kvm_arch_set_irq with kvm_set_msi_inatomic Paolo Bonzini
2015-11-02 14:59 ` Radim Krcmar
2015-11-02 16:08 ` Paolo Bonzini
2015-11-02 17:01 ` Radim Krcmar
2015-11-02 17:05 ` Paolo Bonzini [this message]
2015-11-02 12:21 ` [PATCH 2/3] KVM: device assignment: remove pointless #ifdefs Paolo Bonzini
2015-11-02 12:21 ` [PATCH 3/3] KVM: x86: move kvm_set_irq_inatomic to legacy device assignment Paolo Bonzini
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