From mboxrd@z Thu Jan  1 00:00:00 1970
From: Scott Wood <scottwood@freescale.com>
Date: Tue, 09 Apr 2013 00:49:07 +0000
Subject: Re: [RFC PATCH v3 5/6] kvm/ppc/mpic: in-kernel MPIC emulation
Message-Id: <1365468547.28843.28@snotra>
List-Id: <kvm-ppc.vger.kernel.org>
References: <1364856473-25245-1-git-send-email-scottwood@freescale.com>
	<1364954273-18196-1-git-send-email-scottwood@freescale.com>
	<1364954273-18196-6-git-send-email-scottwood@freescale.com>
	<20130408063042.GB8932@iris.ozlabs.ibm.com>
In-Reply-To: <20130408063042.GB8932@iris.ozlabs.ibm.com> (from
	paulus@samba.org on Mon Apr  8 01:30:42 2013)
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
To: Paul Mackerras <paulus@samba.org>
Cc: Alexander Graf <agraf@suse.de>, kvm-ppc@vger.kernel.org, kvm@vger.kernel.org

On 04/08/2013 01:30:42 AM, Paul Mackerras wrote:
> On Tue, Apr 02, 2013 at 08:57:52PM -0500, Scott Wood wrote:
> > Hook the MPIC code up to the KVM interfaces, add locking, etc.
> 
> [snip]
> 
> > @@ -2164,6 +2164,15 @@ static int kvm_ioctl_create_device(struct  
> kvm *kvm,
> >  	bool test = cd->flags & KVM_CREATE_DEVICE_TEST;
> >
> >  	switch (cd->type) {
> > +#ifdef CONFIG_KVM_MPIC
> > +	case KVM_DEV_TYPE_FSL_MPIC_20:
> > +	case KVM_DEV_TYPE_FSL_MPIC_42: {
> > +		if (test)
> > +			return 0;
> > +
> > +		return kvm_create_mpic(kvm, cd->type);
> > +	}
> > +#endif
> 
> I think this needs to be more like:
> 
> #ifdef CONFIG_KVM_MPIC
> 	case KVM_DEV_TYPE_FSL_MPIC_20:
> 	case KVM_DEV_TYPE_FSL_MPIC_42: {
> 		int fd;
> 
> 		if (test)
> 			return 0;
> 
> 		fd = kvm_create_mpic(kvm, cd->type);
> 		if (fd < 0)
> 			return fd;
> 		cd->fd = fd;
> 		return 0;
> 	}
> #endif

Right, thanks for spotting.  It didn't show up in my testing because I  
did the same thing on the QEMU side.

-Scott