linux-kernel - Re: [PATCH V3 1/3] x86/Hyper-V: Set x2apic destination mode to physical when x2apic is available

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Message-ID: <CAOLK0pwdQGeyKYYkUbZtizR5+ydf-KAp1=+z3s+LfMnjhS1Enw@mail.gmail.com>
Date:   Mon, 11 Feb 2019 16:05:23 +0800
From:   Tianyu Lan <lantianyu1986@...il.com>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     Lan Tianyu <Tianyu.Lan@...rosoft.com>, kys@...rosoft.com,
        haiyangz@...rosoft.com, sthemmin@...rosoft.com,
        Sasha Levin <sashal@...nel.org>,
        Ingo Molnar <mingo@...hat.com>, bp@...en8.de,
        "H. Peter Anvin" <hpa@...or.com>,
        "the arch/x86 maintainers" <x86@...nel.org>,
        Joerg Roedel <joro@...tes.org>, mchehab+samsung@...nel.org,
        davem@...emloft.net,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        nicolas.ferre@...rochip.com, Arnd Bergmann <arnd@...db.de>,
        "linux-kernel@...r kernel org" <linux-kernel@...r.kernel.org>,
        devel@...uxdriverproject.org, iommu@...ts.linux-foundation.org,
        michael.h.kelley@...rosoft.com,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Alex Williamson <alex.williamson@...hat.com>,
        Dan Carpenter <dan.carpenter@...cle.com>
Subject: Re: [PATCH V3 1/3] x86/Hyper-V: Set x2apic destination mode to
 physical when x2apic is available

Hi Thomas:
          Thanks for your review.

On Mon, Feb 11, 2019 at 5:48 AM Thomas Gleixner <tglx@...utronix.de> wrote:
>
> On Thu, 7 Feb 2019, lantianyu1986@...il.com wrote:
>
> > From: Lan Tianyu <Tianyu.Lan@...rosoft.com>
> >
> > Hyper-V doesn't provide irq remapping for IO-APIC. To enable x2apic,
> > set x2apic destination mode to physcial mode when x2apic is available
> > and Hyper-V IOMMU driver makes sure cpus assigned with IO-APIC irqs have
> > 8-bit APIC id.
>
> This looks good now. Can that be applied independent of the IOMMU stuff or
> should this go together. If the latter:
>
>    Reviewed-by: Thomas Gleixner <tglx@...utronix.de>
>
> If not, I just queue if for 5.1. Let me know,
>

This patch can be applied independently. Thanks.
-- 
Best regards
Tianyu Lan