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Date: Wed, 8 Sep 2010 16:43:27 +0900
From: Isaku Yamahata <yamahata@valinux.co.jp>
Message-ID: <20100908074327.GF28803@valinux.co.jp>
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	<20100906094416.GB13529@redhat.com>
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Subject: [Qemu-devel] Re: [PATCH 07/14] msi: implemented msi.
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To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: skandasa@cisco.com, adhyas@gmail.com, etmartin@cisco.com, qemu-devel@nongnu.org, wexu2@cisco.com

Thank you for through review.

On Mon, Sep 06, 2010 at 12:44:16PM +0300, Michael S. Tsirkin wrote:
> > +        uint32_t pending =
> > +            pci_get_long(dev->config + msi_pending_reg(dev, is64bit));
> > +        uint8_t vector;
> > +
> > +        /* deliver pending interrupts which are unmasked */
> > +        for (vector = 0; vector < nr_vector; ++vector) {
> > +            if (msi_is_masked(dev, vector) || !msi_test_bit(pending, vector)) {
> 
> I am confused. This is called after mask is updated, right?
> So msi_is_masked means vector was masked, not unmasked?
> I think the logic is reversed here.

I suppose you were missing the following continue.


> > +                continue;
                     ^^^^^^^^^ Here

> > +            }
> > +
> > +            msi_clear_bit(&pending, vector);
> > +            pci_set_long(dev->config + msi_pending_reg(dev, is64bit), pending);
> > +            msi_notify(dev, vector);
> > +        }
> > +    }
> > +}
> > +
> > +uint8_t msi_nr_allocated_vector(const PCIDevice *dev)

-- 
yamahata