36 lines
1.5 KiB
Diff
36 lines
1.5 KiB
Diff
From d252e92d50c02623ea9da0a140240f6d7ac4558e Mon Sep 17 00:00:00 2001
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From: Sandipan Das <sandipan.das@amd.com>
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Date: Thu, 14 Sep 2023 20:16:51 +0530
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Subject: linux-firmware: amd-ucode: Add note on fam19h warnings
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When running 5.19+ kernels on Genoa or Bergamo systems, some microcode
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patches are known to trigger warnings in the PMI handler. Add a note
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to list the required minimum patch levels for addressing this problem.
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Signed-off-by: Sandipan Das <sandipan.das@amd.com>
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Signed-off-by: Josh Boyer <jwboyer@kernel.org>
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---
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amd-ucode/README | 9 +++++++++
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1 file changed, 9 insertions(+)
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diff --git a/amd-ucode/README b/amd-ucode/README
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index fac11524..f47743c1 100644
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--- a/amd-ucode/README
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+++ b/amd-ucode/README
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@@ -53,3 +53,12 @@ a32b0f0db3f3 ("x86/microcode/AMD: Load late on both threads too")
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When late loading the patches for Genoa or Bergamo, there may be one spurious
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NMI observed per physical core. These NMIs are benign and don't cause any
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functional issue but will result in kernel messages being logged.
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+
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+NOTE: When running 5.19+ kernels on Genoa or Bergamo systems, some microcode
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+patches are known to trigger warnings in the PMI handler. The following are
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+the required minimum patch levels to address this problem:
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+
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+ Family=0x19 Model=0x11 Stepping=0x01: Patch=0x0a10113e
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+ Family=0x19 Model=0x11 Stepping=0x02: Patch=0x0a10123e
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+ Family=0x19 Model=0xa0 Stepping=0x01: Patch=0x0aa00116
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+ Family=0x19 Model=0xa0 Stepping=0x02: Patch=0x0aa00212
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--
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2.41.0
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