From: "Jörg Rödel" <joro@8bytes.org>
To: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: David Coe <david.coe@live.co.uk>,
Robert Richter <rrichter@amd.com>,
Alexander Monakov <amonakov@ispras.ru>,
iommu@lists.linux-foundation.org, Dell.Client.Kernel@dell.com
Subject: Re: AMD-Vi: [Firmware Warn]: EFR mismatch. Use IVHD EFR (0xf77ef22294ada : 0x400f77ef22294ada).
Date: Tue, 14 Sep 2021 14:09:47 +0200 [thread overview]
Message-ID: <YUCRC0CI7rWXt4VA@8bytes.org> (raw)
In-Reply-To: <2f5b07e4-5492-330b-b057-55230639cd5e@molgen.mpg.de>
On Tue, Sep 14, 2021 at 11:10:57AM +0200, Paul Menzel wrote:
> Linux 5.15-rc1 still warns about that (also with latest system firmware
> 1.1.50).
The reason is most likely that the latest firmware still reports a
different EFR feature set in the IVRS table than the IOMMU reports in
its EFR MMIO register.
Regards,
Joerg
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next prev parent reply other threads:[~2021-09-14 12:10 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-12 18:07 AMD-Vi: [Firmware Warn]: EFR mismatch. Use IVHD EFR (0xf77ef22294ada : 0x400f77ef22294ada) Paul Menzel
2021-09-14 9:10 ` Paul Menzel
2021-09-14 12:09 ` Jörg Rödel [this message]
2021-09-14 22:15 ` Paul Menzel
2021-09-14 22:17 ` Paul Menzel
2021-09-15 8:30 ` Jörg Rödel
2021-09-15 8:42 ` Paul Menzel
2021-09-15 8:47 ` Jörg Rödel
2021-09-15 14:39 ` Paul Menzel
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