From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pf1-f179.google.com (mail-pf1-f179.google.com [209.85.210.179]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8AF291EEA49 for ; Thu, 2 Apr 2026 03:15:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.179 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775099736; cv=none; b=KTWssiif5tB3lIyvBBtexq2QTy0VMUbrFRLoF2yboM5kWFR4G+prfVnzXxJWNJUHHrDqu+n26oKoHxf9eC0oDfgKK87iX/dCnAPru6GaVQq5cU7mme4To4KzGXe2rpMNMYuOLbh2JYAm/TqN6bJGF4g+9QVePvbOlLUbLitFF08= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775099736; c=relaxed/simple; bh=+U5YCeLnFCr10ql6pv7WP5QPq8vkzAnNfXnFLLYzeYk=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=MRvV4bg+0Tp6z3PHQImclWaTb2dKaTSNZYR2YqI0fzDLenV3QxIcGJPq1lco6s/NXsAne4iGFj8dxmNGM+XoFTCSlSN/07oHwF9gnRL/8TVf3EwMxUkeVI1NdKwSG8Wt1/HiqGbtPdk3XSqxocYlIsol8DGq801ahlCuG+qyZYg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=O8+18lwy; arc=none smtp.client-ip=209.85.210.179 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="O8+18lwy" Received: by mail-pf1-f179.google.com with SMTP id d2e1a72fcca58-82c20b9fb15so171529b3a.3 for ; Wed, 01 Apr 2026 20:15:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1775099734; x=1775704534; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=P9STGGY2Htk5v7wwUUe6PKHmgTmA/fRjyuHgcYn5ATI=; b=O8+18lwyc+57Uz3B/K5J+KNzd08HDnmtZ+AdxiEAtH6grRXdtZDfIMnsVzaOQvdH9y PFmgLMOnhoRVO/ehCEDm9pQ6jtcIVzV3ZD85x6HMaZEwy1auAgk4pt1/4XFg2FRxgoEi FxA/k3fcQVyXEPSi+Z1oynaJ3hfQrZwRhzvbrjuvpYztR/nvzXnRFVTbHqrqHENzWf9q VKID7qcY3RVnGk8ZCiqjbvzrsSFLtPtuTlPfgbAr9VtK2LnQNQ+cgbH6seeaUeY7iqy9 KudXhtETitPsdAJPq4vd01P9k9ifz0KEzyV3IIq7SJIDW49dh80y11pM4ShdBoEnZvYB eD/g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1775099734; x=1775704534; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=P9STGGY2Htk5v7wwUUe6PKHmgTmA/fRjyuHgcYn5ATI=; b=kP7m4gowpCmXQT/I928N26nGRo9XKV75JuDdHRMIv0Nk0n535vw/p0t35uVljjV//k 0UxiO2Tqc01MklcxDWO2DNNSOuEplhhxy7e+fjVh8n0VqJuxQEkgET2yepeyKDV64z9X e9EfyTzVw0+JIrQKq5lkVrVb9ckGhsJ0jHCtm7KBmODQPMn8N7pHu87P48pDZoZIOfS6 5c+6Af4Bo2/MV5Yb2FmGxGIg2jVIgFLbjwE8WBbJSmaT/gHYuEffJffeZKvq4Kqux1lk 79o68bXH8bjZTfZp/e8HAMJsZtC55dh9WObOgAZh06PfVxD+UwSzkvMzR4jPIvUJSw0D Y9qg== X-Gm-Message-State: AOJu0YxziFjnx+/6Cq3XwQKOGQeIoZRlGBBQDaLs2on5/cbSjwoIPGdd lNH+5lDfMmeyu8xdeWzzFzVTpzZlbG84NXDC+K7JTMmNZy11lQSFUPw/jpJFXr/N X-Gm-Gg: ATEYQzy03AMD9Bzufp/IfZ1Oj5hxdJUI9IZbmSlC/DSKre8gRDWluClXParplmTvuhr 0F2h+hajBu5RNATVJwmWGYK+Zm4ZUGMxHG+kdxmXBeaAOsDdDiX3BF73363KPBjMpZGXgyLMyBf ZpDZZhI+CWZ+7jC7Z+62GVS0+zn4P7pq8vvfw6ZvEArx26VMEtAyWXvcOQrRJlTQuUcdVjivXrX Nlx28N7Xl/ywy1+0+A0twFoGxGvZf5ZE3/tktJbvYiCeyXNn9Iswwyccvigw1pApiSQrgToHHEc 55b1xwLBwGHSv1fveJwWlcaQei2mkZUr4+oXcZ3LTjUj6/B4lQxQ/yjcJvUTFpUKAszK/MK9v+j 51yVw93Ctbmus+6sIlHRQxOae8EyN+Sak4X5Ib3zo23fBqPfrBwLulEQkBhsqtYPWZ/a6Iqcs+j 70w7C5laQeGovqvRTQFPSc X-Received: by 2002:a05:6a00:188f:b0:82c:d6d3:31a1 with SMTP id d2e1a72fcca58-82ce89b9465mr6273072b3a.29.1775099734153; Wed, 01 Apr 2026 20:15:34 -0700 (PDT) Received: from abberation ([115.186.198.92]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-82cf9b261absm1518280b3a.7.2026.04.01.20.15.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 01 Apr 2026 20:15:33 -0700 (PDT) From: Daniel Tobias To: stable@vger.kernel.org Cc: gregkh@linuxfoundation.org, x86@kernel.org, Mario Limonciello , "Borislav Petkov (AMD)" , Daniel Tobias Subject: [PATCH 6.12.y] x86/CPU/AMD: Add additional fixed RDSEED microcode revisions Date: Thu, 2 Apr 2026 14:14:45 +1100 Message-ID: <20260402031445.48620-1-dan.g.tob@gmail.com> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Mario Limonciello [ Upstream commit e1a97a627cd01d73fac5dd054d8f3de601ef2781 ] Microcode that resolves the RDSEED failure (SB-7055 [1]) has been released for additional Zen5 models to linux-firmware [2]. Update the zen5_rdseed_microcode array to cover these new models. Fixes: e980de2ff109 ("x86/CPU/AMD: Add RDSEED fix for Zen5") Signed-off-by: Mario Limonciello Signed-off-by: Borislav Petkov (AMD) Link: https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7055.html [1] Link: https://gitlab.com/kernel-firmware/linux-firmware/-/commit/6167e5566900cf236f7a69704e8f4c441bc7212a [2] Link: https://patch.msgid.link/20251113223608.1495655-1-mario.limonciello@amd.com [ backport: 6.12.y uses a custom check_rdseed_microcode() function with a switch statement. Updated the switch cases to include the new models and revisions from the upstream patch. ] Signed-off-by: Daniel Tobias --- arch/x86/kernel/cpu/amd.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index 437c1db652e9..042849f576db 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -1034,7 +1034,14 @@ static bool check_rdseed_microcode(void) if (cpu_has(c, X86_FEATURE_ZEN5)) { switch (p.ucode_rev >> 8) { case 0xb0021: min_rev = 0xb00215a; break; + case 0xb0081: min_rev = 0xb008121; break; case 0xb1010: min_rev = 0xb101054; break; + case 0xb2040: min_rev = 0xb204037; break; + case 0xb4040: min_rev = 0xb404035; break; + case 0xb4041: min_rev = 0xb404108; break; + case 0xb6000: min_rev = 0xb600037; break; + case 0xb6080: min_rev = 0xb608038; break; + case 0xb7000: min_rev = 0xb700037; break; default: pr_debug("%s: ucode_rev: 0x%x, current revision: 0x%x\n", __func__, p.ucode_rev, c->microcode); -- 2.53.0