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From:   Thomas Gleixner <tglx@linutronix.de>
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To:     David Woodhouse <dwmw2@infradead.org>,
        LKML <linux-kernel@vger.kernel.org>,
        Juergen Gross <jgross@suse.com>,
        xen-devel <xen-devel@lists.xen.org>
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        Will Deacon <will@kernel.org>, linux-pci@vger.kernel.org,
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        Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
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        Logan Gunthorpe <logang@deltatee.com>,
        Ashok Raj <ashok.raj@intel.com>, Jon Mason <jdmason@kudzu.us>,
        Allen Hubbe <allenbh@gmail.com>
Subject: Re: [patch V3 16/22] genirq/msi: Provide new domain id based
 interfaces for freeing interrupts
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Date:   Mon, 16 Jan 2023 20:22:07 +0100
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David!

On Mon, Jan 16 2023 at 18:58, David Woodhouse wrote:

> On Mon, 2023-01-16 at 19:11 +0100, Thomas Gleixner wrote:
>> +=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0.flags=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=3D MSI_FLAG_FREE_MSI_DESCS | MSI_FLAG_DEV_SYSFS,
> =C2=A0
> That doesn't apply on top of
> https://lore.kernel.org/all/4bffa69a949bfdc92c4a18e5a1c3cbb3b94a0d32.came=
l@infradead.org/
> and doesn't include the | MSI_FLAG_PCI_MSIX either.

Indeed. I saw that patch after my reply. :)

> With that remedied,
>
> Tested-by: David Woodhouse <dwmw@amazon.co.uk>
>
> Albeit only under qemu with
> https://git.infradead.org/users/dwmw2/qemu.git/shortlog/refs/heads/xenfv
> and not under real Xen.

Five levels of emulation. What could possibly go wrong?