From patchwork Fri Jun 7 19:13:30 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Tokarev X-Patchwork-Id: 1945275 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4VwwrQ4xTmz20Q6 for ; Sat, 8 Jun 2024 08:30:30 +1000 (AEST) Received: from [::1] (helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sFf4W-0000cM-70; Fri, 07 Jun 2024 15:16:20 -0400 Received: from [2001:470:142:3::10] (helo=eggs.gnu.org) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sFf4U-0000Po-A5; Fri, 07 Jun 2024 15:16:18 -0400 Received: from isrv.corpit.ru ([86.62.121.231]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sFf4S-0002sn-4q; Fri, 07 Jun 2024 15:16:18 -0400 Received: from tsrv.corpit.ru (tsrv.tls.msk.ru [192.168.177.2]) by isrv.corpit.ru (Postfix) with ESMTP id 4EBCC6E55E; Fri, 7 Jun 2024 22:14:53 +0300 (MSK) Received: from tls.msk.ru (mjt.wg.tls.msk.ru [192.168.177.130]) by tsrv.corpit.ru (Postfix) with SMTP id 8730FE2758; Fri, 7 Jun 2024 22:13:58 +0300 (MSK) Received: (nullmailer pid 529422 invoked by uid 1000); Fri, 07 Jun 2024 19:13:58 -0000 From: Michael Tokarev To: qemu-devel@nongnu.org Cc: qemu-stable@nongnu.org, Marcin Juszkiewicz , Richard Henderson , Peter Maydell , Michael Tokarev Subject: [Stable-9.0.1 49/71] target/arm: Disable SVE extensions when SVE is disabled Date: Fri, 7 Jun 2024 22:13:30 +0300 Message-Id: <20240607191356.529336-5-mjt@tls.msk.ru> X-Mailer: git-send-email 2.39.2 In-Reply-To: References: MIME-Version: 1.0 Received-SPF: pass client-ip=86.62.121.231; envelope-from=mjt@tls.msk.ru; helo=isrv.corpit.ru X-Spam_score_int: -68 X-Spam_score: -6.9 X-Spam_bar: ------ X-Spam_report: (-6.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_HI=-5, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Marcin Juszkiewicz Cc: qemu-stable@nongnu.org Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2304 Reported-by: Marcin Juszkiewicz Signed-off-by: Richard Henderson Signed-off-by: Marcin Juszkiewicz Message-id: 20240526204551.553282-1-richard.henderson@linaro.org Reviewed-by: Peter Maydell Signed-off-by: Peter Maydell (cherry picked from commit daf9748ac002ec35258e5986b6257961fd04b565) Signed-off-by: Michael Tokarev diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c index 985b1efe16..6e33481dfa 100644 --- a/target/arm/cpu64.c +++ b/target/arm/cpu64.c @@ -109,7 +109,11 @@ void arm_cpu_sve_finalize(ARMCPU *cpu, Error **errp) * No explicit bits enabled, and no implicit bits from sve-max-vq. */ if (!cpu_isar_feature(aa64_sve, cpu)) { - /* SVE is disabled and so are all vector lengths. Good. */ + /* + * SVE is disabled and so are all vector lengths. Good. + * Disable all SVE extensions as well. + */ + cpu->isar.id_aa64zfr0 = 0; return; }