From: Joerg Roedel <joro@8bytes.org>
To: Kai-Heng Feng <kai.heng.feng@canonical.com>
Cc: iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] iommu/amd: Override wrong IVRS IOAPIC on Raven Ridge systems
Date: Fri, 9 Aug 2019 17:39:31 +0200 [thread overview]
Message-ID: <20190809153931.GG12930@8bytes.org> (raw)
In-Reply-To: <20190808101707.16783-1-kai.heng.feng@canonical.com>
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
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WARNING: multiple messages have this Message-ID (diff)
From: Joerg Roedel <joro@8bytes.org>
To: Kai-Heng Feng <kai.heng.feng@canonical.com>
Cc: iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] iommu/amd: Override wrong IVRS IOAPIC on Raven Ridge systems
Date: Fri, 9 Aug 2019 17:39:31 +0200 [thread overview]
Message-ID: <20190809153931.GG12930@8bytes.org> (raw)
In-Reply-To: <20190808101707.16783-1-kai.heng.feng@canonical.com>
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
next prev parent reply other threads:[~2019-08-09 15:39 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-08 10:17 [PATCH] iommu/amd: Override wrong IVRS IOAPIC on Raven Ridge systems Kai-Heng Feng
2019-08-08 10:17 ` Kai-Heng Feng
2019-08-09 15:39 ` Joerg Roedel [this message]
2019-08-09 15:39 ` Joerg Roedel
2019-08-13 3:58 ` Kai-Heng Feng
2019-08-13 3:58 ` Kai-Heng Feng
2019-08-14 8:55 ` Joerg Roedel
2019-08-14 8:55 ` Joerg Roedel
2019-08-17 6:35 ` [PATCH v2] " Kai-Heng Feng
2019-08-17 6:35 ` Kai-Heng Feng
2019-08-19 6:56 ` kbuild test robot
2019-08-19 6:56 ` kbuild test robot
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