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[2620:137:e000::1:20]) by mx.google.com with ESMTP id k12-20020a170906054c00b0099b94cd668bsi7964707eja.298.2023.09.05.11.14.03; Tue, 05 Sep 2023 11:14:30 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=bSTLaq9g; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239463AbjIEQsD (ORCPT + 99 others); Tue, 5 Sep 2023 12:48:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36920 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1350964AbjIEFFQ (ORCPT ); Tue, 5 Sep 2023 01:05:16 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A54C4CC5 for ; Mon, 4 Sep 2023 22:05:13 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 75218B810AA for ; Tue, 5 Sep 2023 05:05:12 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C0BC6C433C8; Tue, 5 Sep 2023 05:05:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1693890311; bh=OZJMVQjZTi/e/s9nHO1upSPDYbGcZBjeRCtvUGGaw7g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bSTLaq9gdJi36J7Erfbk+SdunOSixjDTiCsEjtoMWjw4LhzOhn6O3HRx0OWfNP4fX IHXifKN8D2gqHYOC/ttH9Q9I0uoVuAbFvJe9+ZfhOeZc4ats0gHDwKxxr95QoVOwAg ET3pgG0q3ctbEdqfePWrXZPvLq85QIgAmkVUr+/4eo1QPJH4K+n/ug4qqIYVEu2ShC bGkWBUeFnO+H6K0rlApDZbglnOdqmsHkMDeVp+IEPZO2y6X8RDNRAdDTmevZok7UMb DNMNE3QsqUF+ST4oZoqiejf9e5qlLywPYlg1PXNAFgToBlq9WKpYbFvHSIwUfLlGpd J5l/3Y3jZksEw== From: Josh Poimboeuf To: x86@kernel.org Cc: linux-kernel@vger.kernel.org, Borislav Petkov , Peter Zijlstra , Babu Moger , Paolo Bonzini , Sean Christopherson , David.Kaplan@amd.com, Andrew Cooper , Nikolay Borisov , gregkh@linuxfoundation.org, Thomas Gleixner Subject: [PATCH v3 07/20] x86/srso: Print mitigation for retbleed IBPB case Date: Mon, 4 Sep 2023 22:04:51 -0700 Message-ID: X-Mailer: git-send-email 2.41.0 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org When overriding the requested mitigation with IBPB due to retbleed=ibpb, print the mitigation in the usual format instead of a custom error message. Signed-off-by: Josh Poimboeuf --- arch/x86/kernel/cpu/bugs.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c index 235c0e00ae51..6c47f37515b8 100644 --- a/arch/x86/kernel/cpu/bugs.c +++ b/arch/x86/kernel/cpu/bugs.c @@ -2425,9 +2425,8 @@ static void __init srso_select_mitigation(void) if (retbleed_mitigation == RETBLEED_MITIGATION_IBPB) { if (has_microcode) { - pr_err("Retbleed IBPB mitigation enabled, using same for SRSO\n"); srso_mitigation = SRSO_MITIGATION_IBPB; - goto pred_cmd; + goto out; } } @@ -2490,7 +2489,8 @@ static void __init srso_select_mitigation(void) break; } - pr_info("%s%s\n", srso_strings[srso_mitigation], (has_microcode ? "" : ", no microcode")); +out: + pr_info("%s%s\n", srso_strings[srso_mitigation], has_microcode ? "" : ", no microcode"); pred_cmd: if ((!boot_cpu_has_bug(X86_BUG_SRSO) || srso_cmd == SRSO_CMD_OFF) && -- 2.41.0