From nobody Mon Feb 9 18:17:42 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; 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; dmarc=pass(p=none dis=none) header.from=gmail.com ARC-Seal: i=1; a=rsa-sha256; t=1767637662; cv=none; d=zohomail.com; s=zohoarc; b=W1v0S7sbw3N21dJ47U3hNccIBqPV90ThefLj35gPUidJoNpsuluK4eyUp/eXy0O3sSHk3m4o2E3BLqqHSgU4EoxYkty+D0q487xrtWxAmo/1V/HMjZwBqxR4T1RsA1Jv8HHjj215UgyDF+/nIgNzY5q/Ky2DmWH+ErlOADXP5wM= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1767637662; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=udHcpN8ZZZt21zmciD7G8BASxGfZmLICDSByJJQKjAw=; b=ifvsjbGMluum718saPp8VAkFeSvThsKpwUyH2PwtHn4gOozH4vpRDH+k/WQjb3QA2uxdcr3cEUhEV0lnjOqQh0oXOOWn4pf4ILo7Y8joGvq1ttxrai3ye+jJxB9pBGYu6wl7kitNNE0nW2IyOkVMxpcRHzx7TrfFMcwlpoMHcIY= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; 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; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1767637662783176.98420819691626; Mon, 5 Jan 2026 10:27:42 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vcp8V-0001mf-S0; Mon, 05 Jan 2026 13:17:00 -0500 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 1vcp7T-00017N-M0 for qemu-devel@nongnu.org; Mon, 05 Jan 2026 13:15:57 -0500 Received: from mail-qk1-x72d.google.com ([2607:f8b0:4864:20::72d]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1vcp7P-00037B-Dd for qemu-devel@nongnu.org; Mon, 05 Jan 2026 13:15:54 -0500 Received: by mail-qk1-x72d.google.com with SMTP id af79cd13be357-8b1e54aefc5so15053785a.1 for ; Mon, 05 Jan 2026 10:15:40 -0800 (PST) Received: from [192.168.1.204] ([185.213.193.254]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-8907540e24csm3855706d6.25.2026.01.05.10.15.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 05 Jan 2026 10:15:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1767636940; x=1768241740; darn=nongnu.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=udHcpN8ZZZt21zmciD7G8BASxGfZmLICDSByJJQKjAw=; b=VViVQYq1/5eOSa2IUEdWOvF5imujBC8PLtJfF6ibqMalmjYQm1JXpMRU6j0xV91APS RqKxTsHueCq6OpbhroQlxjtV+s0Kn33PrDUljnH7Mf4406iD953mPUrJF47a1hYseEY9 g9NcqO4dcST7oU/x7ZOywNeCFuMv1EC60IsNRFpSE956uC2wgZwm4xy54rfl63eGPoyv LYChPrmDVsyjtA6omZ6IMa7KV3DgKo/HWQ2hPpYTqeKiJZ/TSopkSyFsOPh8a2HT35/k rOR5v1dfgT3tSl+J2WHf5q7/cBZmV5n15rHqxXiIxb+RC/+kXMwqkmvi7+v7SncGiHQw f6zw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1767636940; x=1768241740; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-gg:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=udHcpN8ZZZt21zmciD7G8BASxGfZmLICDSByJJQKjAw=; b=t88JL9NWnXejsZ+Jn3VGpYiCGsHxLbMnWV/EmPnQjDq4u3coHhsQT7KP2v0LT/MzVl VxBGNhJufRfmT+uNAFKOm1jGkgzyeOYUMmC/bOaR0KG5xlbTHD692xqDw39IjBdIVh1v ULVqBVHKj5r82YjLs5nOV7VG9G5n0o2e4Tb+Pe2Gw03Zzjn+VvQzr2wkZRZagCpwCwUK SPPsN+EwMLv+tHAqAh9iEAEii2AqWX+5X/asheVV7cedMQXsS0pO7QKNRcV3s/bjsLcx tWzTcjV4uH40CgZnhMlPUAnhTnnX/h8sT8xkvV32tNkLV50od3sb1CuAHwrChxZE7wQy mAMQ== X-Gm-Message-State: AOJu0YzUTrCPuTCIZ2McvtfBhD8vUPeoAKsvwRUQ6rUqX6sU3QE/RXkq 2Riw/kLpp+I7mQKINPd+PybkdybHA1RcE2DxGSssHhR7d4QmMzYMkWS2 X-Gm-Gg: AY/fxX5du4yD1JZXat+UShznJVK3NC3s/J+bs34I3bUPn46MnQT4CUaLiFWunEf6bep 44TxIjnyqTGF5pB7l8poSb5wHYbLtk8qjWjeuFlQJ2PO14o7K2hLLzuakC5AL1PxBYaRErf1EOZ jzX2b0lxSJbdy23kQuJK8WfhIWqIJoxCFhFuCFjLFQCCTVISB8JU4z2EeqwNXTLS7SlW5+RXAMU 99ZG47tonqZ13fgUUJPxVmF3AAMClCFM+GWqJB8M4xrc+CsOJ1UtKR54FPmLpu7VdSvwI7SuU/S ynlZLxA3Y0OR5guYCVkObNENZwG6p9L8fSa3FLqo/pKhzrGzkLt9n3dZOH37ndX5TIogaZociBG nEUuG6t2vYYmzgl0LROONSWNxbg3+5HGu1m/b/O26YZJLnSqvyokP9V8QINbS3jOl9k2nAhTBjb EzZhWTeyS/j8vG0y9nx1zgIHvW X-Google-Smtp-Source: AGHT+IEH1q73W2xEmNCuPVoyRXFU7CwblIqnnjCeffn+13De9y7qMnrq+Z1Usj1DLFFk8Oq3949RtQ== X-Received: by 2002:ac8:5e0d:0:b0:4ee:24b8:2275 with SMTP id d75a77b69052e-4ffa769a0a5mr6418201cf.1.1767636939776; Mon, 05 Jan 2026 10:15:39 -0800 (PST) From: Gabriel Brookman Date: Mon, 05 Jan 2026 11:14:59 -0700 Subject: [PATCH RFC v3 10/12] docs: add MTE4 features to docs MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260105-feat-mte4-v3-10-86a0d99ef2e4@gmail.com> References: <20260105-feat-mte4-v3-0-86a0d99ef2e4@gmail.com> In-Reply-To: <20260105-feat-mte4-v3-0-86a0d99ef2e4@gmail.com> To: qemu-devel@nongnu.org Cc: Peter Maydell , Gustavo Romero , Richard Henderson , qemu-arm@nongnu.org, Laurent Vivier , Gabriel Brookman X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1767636923; l=2273; i=brookmangabriel@gmail.com; s=20251009; h=from:subject:message-id; bh=DsmbxIwUBXC/gS0c7G0YS6d9ziseoKdUCW31wFQg4u8=; b=7hq6iEvTw/7SdRedRqlvPiN7gXImWHLziKMoojuFus0lGNbf1qb1QAjzwnRwFSfrvYKkEVybz ixarxY83VGVDFVqdLBO1SeR2wLoDOvp2mHrJqMq0OfkviO3gECE5gVO X-Developer-Key: i=brookmangabriel@gmail.com; a=ed25519; pk=m9TtPDal6WzoHNnQiHHKf8dTrv3DUCPUUTujuo8vNrw= 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 (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=2607:f8b0:4864:20::72d; envelope-from=brookmangabriel@gmail.com; helo=mail-qk1-x72d.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable 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-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1767637668491158500 The implemented MTE4 features are now present in docs/system/arm/emulation.rst Signed-off-by: Gabriel Brookman Reviewed-by: Richard Henderson --- docs/system/arm/emulation.rst | 5 +++++ target/arm/tcg/cpu64.c | 8 ++++++++ 2 files changed, 13 insertions(+) diff --git a/docs/system/arm/emulation.rst b/docs/system/arm/emulation.rst index 31a5878a8f..12662189fc 100644 --- a/docs/system/arm/emulation.rst +++ b/docs/system/arm/emulation.rst @@ -106,6 +106,11 @@ the following architecture extensions: - FEAT_MTE3 (MTE Asymmetric Fault Handling) - FEAT_MTE_ASYM_FAULT (Memory tagging asymmetric faults) - FEAT_MTE_ASYNC (Asynchronous reporting of Tag Check Fault) +- FEAT_MTE_PERM (NoTagAccess memory attribute) +- FEAT_MTE_TAGGED_FAR (Full address reporting of Tag Check Fault) +- FEAT_MTE_STORE_ONLY (Store-only tag checking) +- FEAT_MTE_CANONICAL_TAGS (Canonical tag checking) +- FEAT_MTE_NO_ADDRESS_TAGS (Address tagging disabled) - FEAT_NMI (Non-maskable Interrupt) - FEAT_NV (Nested Virtualization) - FEAT_NV2 (Enhanced nested virtualization support) diff --git a/target/arm/tcg/cpu64.c b/target/arm/tcg/cpu64.c index 917db5bb09..4ba126f4f8 100644 --- a/target/arm/tcg/cpu64.c +++ b/target/arm/tcg/cpu64.c @@ -1281,8 +1281,16 @@ void aarch64_max_tcg_initfn(Object *obj) t =3D FIELD_DP64(t, ID_AA64PFR1, CSV2_FRAC, 0); /* FEAT_CSV2_3 */ t =3D FIELD_DP64(t, ID_AA64PFR1, NMI, 1); /* FEAT_NMI */ t =3D FIELD_DP64(t, ID_AA64PFR1, GCS, 1); /* FEAT_GCS */ + t =3D FIELD_DP64(t, ID_AA64PFR1, + MTEX, 1); /* FEAT_MTE_NO_ADDRESS_TAGS + FEAT_MTE_CANONICAL_T= AGS */ SET_IDREG(isar, ID_AA64PFR1, t); =20 + t =3D GET_IDREG(isar, ID_AA64PFR2); + t =3D FIELD_DP64(t, ID_AA64PFR2, MTEFAR, 1); /* FEAT_MTE_TAGGED_FAR= */ + t =3D FIELD_DP64(t, ID_AA64PFR2, MTESTOREONLY, 1); /* FEAT_MTE_STORE= _ONLY */ + t =3D FIELD_DP64(t, ID_AA64PFR2, MTEPERM, 1); /* FEAT_MTE_PERM */ + SET_IDREG(isar, ID_AA64PFR2, t); + t =3D GET_IDREG(isar, ID_AA64MMFR0); t =3D FIELD_DP64(t, ID_AA64MMFR0, PARANGE, 6); /* FEAT_LPA: 52 bits */ t =3D FIELD_DP64(t, ID_AA64MMFR0, TGRAN16, 1); /* 16k pages supporte= d */ --=20 2.52.0