From mboxrd@z Thu Jan  1 00:00:00 1970
From: Paolo Bonzini <pbonzini@redhat.com>
Subject: Re: [PATCH] kvm: don't take vcpu mutex for obviously invalid vcpu
 ioctls
Date: Mon, 22 Sep 2014 23:29:16 +0200
Message-ID: <542094AC.6070908@redhat.com>
References: <1411167805-2458-1-git-send-email-dmatlack@google.com> <20140922200812.GA9217@amt.cnet>
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Cc: Gleb Natapov <gleb@kernel.org>, kvm@vger.kernel.org,
	linux-kernel@vger.kernel.org
To: Marcelo Tosatti <mtosatti@redhat.com>,
	David Matlack <dmatlack@google.com>
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Il 22/09/2014 22:08, Marcelo Tosatti ha scritto:
> > This patch does not change functionality, it just makes invalid ioctls
> > fail faster.
> 
> Should not be executing vcpu ioctls without interrupt KVM_RUN in the
> first place.

This is not entirely true, there are a couple of asynchronous ioctls
though they are not used on x86 (commit 2122ff5eab8f, KVM: move vcpu
locking to dispatcher for generic vcpu ioctls, 2010-05-13).

Paolo