From: Paolo Bonzini <pbonzini@redhat.com>
To: Steve Rutherford <srutherford@google.com>
Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
mtosatti@redhat.com, rkrcmar@redhat.com
Subject: Re: [PATCH 4/4] KVM: x86: clean/fix memory barriers in irqchip_in_kernel
Date: Thu, 30 Jul 2015 09:26:00 +0200 [thread overview]
Message-ID: <55B9D188.3020600@redhat.com> (raw)
In-Reply-To: <20150730033208.GC15229@google.com>
On 30/07/2015 05:32, Steve Rutherford wrote:
>> > + /* Write kvm->irq_routing before kvm->arch.vpic. */
>> > + smp_wmb();
> I assume this pairs with irqchip_in_kernel?
Yes, see the comment added there by this same patch ("read
kvm->arch.vpic before kvm->irq_routing").
Paolo
prev parent reply other threads:[~2015-07-30 7:26 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-29 13:28 [PATCH 0/4] KVM: cleanups around memory barriers and irqchip_in_kernel Paolo Bonzini
2015-07-29 13:28 ` [PATCH 1/4] KVM: x86: remove unnecessary memory barriers for shared MSRs Paolo Bonzini
2015-07-29 13:28 ` [PATCH 2/4] KVM: document memory barriers for kvm->vcpus/kvm->online_vcpus Paolo Bonzini
2015-07-30 11:40 ` Christian Borntraeger
2015-07-30 12:46 ` Paolo Bonzini
2015-07-30 13:57 ` Christian Borntraeger
2015-07-30 14:02 ` Paolo Bonzini
2015-07-30 14:05 ` Christian Borntraeger
2015-07-29 13:28 ` [PATCH 3/4] KVM: i8254: remove unnecessary irqchip_in_kernel check Paolo Bonzini
2015-07-30 4:36 ` Steve Rutherford
2015-07-30 7:25 ` Paolo Bonzini
2015-07-29 13:28 ` [PATCH 4/4] KVM: x86: clean/fix memory barriers in irqchip_in_kernel Paolo Bonzini
2015-07-30 3:32 ` Steve Rutherford
2015-07-30 7:26 ` Paolo Bonzini [this message]
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