From: Marcelo Tosatti <mtosatti@redhat.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
Greg Kurz <gkurz@linux.vnet.ibm.com>,
Paul Mackerras <paulus@samba.org>,
stable@vger.kernel.org
Subject: Re: [PATCH] kvm: move advertising of KVM_CAP_IRQFD to common code
Date: Tue, 10 Mar 2015 21:19:13 -0300 [thread overview]
Message-ID: <20150311001913.GA20876@amt.cnet> (raw)
In-Reply-To: <1425552886-1848-1-git-send-email-pbonzini@redhat.com>
On Thu, Mar 05, 2015 at 11:54:46AM +0100, Paolo Bonzini wrote:
> POWER supports irqfds but forgot to advertise them. Some userspace does
> not check for the capability, but others check it---thus they work on
> x86 and s390 but not POWER.
>
> To avoid that other architectures in the future make the same mistake, let
> common code handle KVM_CAP_IRQFD the same way as KVM_CAP_IRQFD_RESAMPLE.
>
> Reported-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
> Cc: stable@vger.kernel.org
> Fixes: 297e21053a52f060944e9f0de4c64fad9bcd72fc
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> ---
> Marcelo, please apply this for 4.0.
Applied, thanks.
prev parent reply other threads:[~2015-03-11 0:19 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-05 10:54 [PATCH] kvm: move advertising of KVM_CAP_IRQFD to common code Paolo Bonzini
2015-03-05 11:06 ` Greg Kurz
2015-03-11 0:19 ` Marcelo Tosatti [this message]
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