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