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

From: Joerg Roedel
Date: Fri Aug 09 2019 - 11:39:35 EST


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