linux-kernel - Re: [PATCH] iommu/amd: Override wrong IVRS IOAPIC on Raven Ridge systems

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Message-ID: <20190809153931.GG12930@8bytes.org>
Date:   Fri, 9 Aug 2019 17:39:31 +0200
From:   Joerg Roedel <joro@...tes.org>
To:     Kai-Heng Feng <kai.heng.feng@...onical.com>
Cc:     iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] iommu/amd: Override wrong IVRS IOAPIC on Raven Ridge
 systems

On Thu, Aug 08, 2019 at 06:17:07PM +0800, Kai-Heng Feng wrote:
> Raven Ridge systems may have malfunction touchpad or hang at boot if
> incorrect IVRS IOAPIC is provided by BIOS.
> 
> Users already found correct "ivrs_ioapic=" values, let's put them inside
> kernel to workaround buggy BIOS.

Will that still work when a fixed BIOS for these laptops is released?


	Joerg