linux-kernel - Re: [patch V2 00/46] x86, PCI, XEN, genirq ...: Prepare for device MSI

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Message-ID: <b41eb9d7-0438-8a3a-d708-0173b4b25fea@linux.intel.com>
Date:   Mon, 31 Aug 2020 15:29:56 +0800
From:   Lu Baolu <baolu.lu@...ux.intel.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        LKML <linux-kernel@...r.kernel.org>
Cc:     baolu.lu@...ux.intel.com, x86@...nel.org,
        Joerg Roedel <joro@...tes.org>,
        iommu@...ts.linux-foundation.org, linux-hyperv@...r.kernel.org,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Jon Derrick <jonathan.derrick@...el.com>,
        Wei Liu <wei.liu@...nel.org>,
        "K. Y. Srinivasan" <kys@...rosoft.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        Steve Wahl <steve.wahl@....com>,
        Dimitri Sivanich <sivanich@....com>,
        Russ Anderson <rja@....com>, linux-pci@...r.kernel.org,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
        xen-devel@...ts.xenproject.org, Juergen Gross <jgross@...e.com>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        Stefano Stabellini <sstabellini@...nel.org>,
        Marc Zyngier <maz@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Megha Dey <megha.dey@...el.com>,
        Jason Gunthorpe <jgg@...lanox.com>,
        Dave Jiang <dave.jiang@...el.com>,
        Alex Williamson <alex.williamson@...hat.com>,
        Jacob Pan <jacob.jun.pan@...el.com>,
        Baolu Lu <baolu.lu@...el.com>,
        Kevin Tian <kevin.tian@...el.com>,
        Dan Williams <dan.j.williams@...el.com>
Subject: Re: [patch V2 00/46] x86, PCI, XEN, genirq ...: Prepare for device
 MSI

Hi Thomas,

On 2020/8/31 15:10, Thomas Gleixner wrote:
> On Mon, Aug 31 2020 at 08:51, Lu Baolu wrote:
>> On 8/26/20 7:16 PM, Thomas Gleixner wrote:
>>> This is the second version of providing a base to support device MSI (non
>>> PCI based) and on top of that support for IMS (Interrupt Message Storm)
>>> based devices in a halfways architecture independent way.
>>
>> After applying this patch series, the dmar_alloc_hwirq() helper doesn't
>> work anymore during boot. This causes the IOMMU driver to fail to
>> register the DMA fault handler and abort the IOMMU probe processing.
>> Is this a known issue?
> 
> See replies to patch 15/46 or pull the git tree. It has the issue fixed.

Ah! Yes. Sorry for the noise.

Beset regards,
baolu