From mboxrd@z Thu Jan  1 00:00:00 1970
From: Paul Brook <paul@codesourcery.com>
Subject: Re: [Qemu-devel] [PATCH] qemu: msi irq allocation api
Date: Thu, 21 May 2009 14:23:20 +0100
Message-ID: <200905211423.20843.paul@codesourcery.com>
References: <20090520162130.GA22109@redhat.com> <200905211409.33325.paul@codesourcery.com> <20090521131231.GH25309@redhat.com>
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Cc: Avi Kivity <avi@redhat.com>, qemu-devel@nongnu.org,
	Carsten Otte <cotte@de.ibm.com>, kvm@vger.kernel.org,
	Rusty Russell <rusty@rustcorp.com.au>,
	virtualization@lists.linux-foundation.org,
	Christian Borntraeger <borntraeger@de.ibm.com>
To: "Michael S. Tsirkin" <mst@redhat.com>
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> > MSI provides multiple edge triggered interrupts, whereas traditional mode
> > provides a single level triggered interrupt. My guess is most devices
> > will want to treat these differently anyway.
>
> So, is qemu_send_msi better than qemu_set_irq.

Neither. pci_send_msi, which is a trivial wrapper around stl_phys.

Paul