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Subject: Re: [tip:x86/apic] iommu/vt-d: Move iommu preparatory allocations to irq_remap_ops.prepare
From: Yinghai Lu <yinghai@kernel.org>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>, Joerg Roedel <joro@8bytes.org>,
        Borislav Petkov <bp@alien8.de>, Ingo Molnar <mingo@kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        "H. Peter Anvin" <hpa@zytor.com>,
        Linus Torvalds <torvalds@linux-foundation.org>
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On Thu, Dec 11, 2014 at 6:04 PM, Yinghai Lu <yinghai@kernel.org> wrote:
> On Thu, Dec 11, 2014 at 12:30 PM, Thomas Gleixner <tglx@linutronix.de> wrote:
>
>> So irq_2_iommu is empty. That's a multi MSI, and that's the second
>> interrupt which gets enabled.
>>
>> The patch below should fix it.
>>
>
> Yes, that fixes the problem.
>
> Assume you will fold it into
>
> commit 289472f461d922507f75dd2451770282adb3a99b
> Author: Jiang Liu <jiang.liu@linux.intel.com>
> Date:   Tue Nov 25 13:53:19 2014 +0800
>
>     iommu/vt-d: Enhance Intel IR driver to suppport hierarchy irqdomain
>

Looks like you did not put your fix in new tip/x86/apic with Jiang's patchset.

    Yinghai