linux-kernel - Re: [tip:x86/apic] iommu/vt-d: Move iommu preparatory allocations to irq_remap

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Message-ID: <CAE9FiQX=4X=VpG9F67=X9cwvFhMwmCHuem7Kw7yX65dyftPyfw@mail.gmail.com>
Date:	Thu, 11 Dec 2014 18:04:30 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	Jiang Liu <jiang.liu@...ux.intel.com>,
	Joerg Roedel <joro@...tes.org>, Borislav Petkov <bp@...en8.de>,
	Ingo Molnar <mingo@...nel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [tip:x86/apic] iommu/vt-d: Move iommu preparatory allocations to irq_remap_ops.prepare

On Thu, Dec 11, 2014 at 12:30 PM, Thomas Gleixner <tglx@...utronix.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@...ux.intel.com>
Date:   Tue Nov 25 13:53:19 2014 +0800

    iommu/vt-d: Enhance Intel IR driver to suppport hierarchy irqdomain

Thanks

Yinghai
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