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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <alpine.DEB.2.21.1902102247100.8784@nanos.tec.linutronix.de>
Date:   Sun, 10 Feb 2019 22:48:51 +0100 (CET)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     lantianyu1986@...il.com
cc:     Lan Tianyu <Tianyu.Lan@...rosoft.com>, kys@...rosoft.com,
        haiyangz@...rosoft.com, sthemmin@...rosoft.com, sashal@...nel.org,
        mingo@...hat.com, bp@...en8.de, hpa@...or.com, x86@...nel.org,
        joro@...tes.org, mchehab+samsung@...nel.org, davem@...emloft.net,
        gregkh@...uxfoundation.org, nicolas.ferre@...rochip.com,
        arnd@...db.de, linux-kernel@...r.kernel.org,
        devel@...uxdriverproject.org, iommu@...ts.linux-foundation.org,
        michael.h.kelley@...rosoft.com, vkuznets@...hat.com,
        alex.williamson@...hat.com, dan.carpenter@...cle.com
Subject: Re: [PATCH V3 1/3] x86/Hyper-V: Set x2apic destination mode to
 physical when x2apic is available

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,

Thanks,

	tglx