From nobody Sun Nov 24 00:00:19 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1728328794246969.5105870551846; Mon, 7 Oct 2024 12:19:54 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sxtFT-0005zo-EM; Mon, 07 Oct 2024 15:18:29 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sxtFD-0005ia-1H; Mon, 07 Oct 2024 15:18:11 -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 1sxtFB-0004GP-8L; Mon, 07 Oct 2024 15:18:10 -0400 Received: from tsrv.corpit.ru (tsrv.tls.msk.ru [192.168.177.2]) by isrv.corpit.ru (Postfix) with ESMTP id 51BB596250; Mon, 7 Oct 2024 22:16:49 +0300 (MSK) Received: from tls.msk.ru (mjt.wg.tls.msk.ru [192.168.177.130]) by tsrv.corpit.ru (Postfix) with SMTP id 2B88514F730; Mon, 7 Oct 2024 22:16:56 +0300 (MSK) Received: (nullmailer pid 2592759 invoked by uid 1000); Mon, 07 Oct 2024 19:16:54 -0000 From: Michael Tokarev To: qemu-devel@nongnu.org Cc: qemu-stable@nongnu.org, Peter Maydell , Marcin Juszkiewicz , Richard Henderson , Michael Tokarev Subject: [Stable-9.1.1 19/32] target/arm: Correct ID_AA64ISAR1_EL1 value for neoverse-v1 Date: Mon, 7 Oct 2024 22:16:36 +0300 Message-Id: <20241007191654.2592616-19-mjt@tls.msk.ru> X-Mailer: git-send-email 2.39.5 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; 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, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1728328794803116600 Content-Type: text/plain; charset="utf-8" From: Peter Maydell The Neoverse-V1 TRM is a bit confused about the layout of the ID_AA64ISAR1_EL1 register, and so its table 3-6 has the wrong value for this ID register. Trust instead section 3.2.74's list of which fields are set. This means that we stop incorrectly reporting FEAT_XS as present, and now report the presence of FEAT_BF16. Cc: qemu-stable@nongnu.org Reported-by: Marcin Juszkiewicz Signed-off-by: Peter Maydell Reviewed-by: Richard Henderson Message-id: 20240917161337.3012188-1-peter.maydell@linaro.org (cherry picked from commit 8676007eff04bb4e454bcdf92fab3f855bcc59b3) Signed-off-by: Michael Tokarev diff --git a/target/arm/tcg/cpu64.c b/target/arm/tcg/cpu64.c index fe232eb306..8516daefca 100644 --- a/target/arm/tcg/cpu64.c +++ b/target/arm/tcg/cpu64.c @@ -685,7 +685,7 @@ static void aarch64_neoverse_v1_initfn(Object *obj) cpu->isar.id_aa64dfr0 =3D 0x000001f210305519ull; cpu->isar.id_aa64dfr1 =3D 0x00000000; cpu->isar.id_aa64isar0 =3D 0x1011111110212120ull; /* with FEAT_RNG */ - cpu->isar.id_aa64isar1 =3D 0x0111000001211032ull; + cpu->isar.id_aa64isar1 =3D 0x0011100001211032ull; cpu->isar.id_aa64mmfr0 =3D 0x0000000000101125ull; cpu->isar.id_aa64mmfr1 =3D 0x0000000010212122ull; cpu->isar.id_aa64mmfr2 =3D 0x0220011102101011ull; --=20 2.39.5