From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id CE91EFCA198 for ; Mon, 9 Mar 2026 22:01:36 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vzif1-0003BU-Re; Mon, 09 Mar 2026 18:01:11 -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 1vzieo-00035o-In for qemu-arm@nongnu.org; Mon, 09 Mar 2026 18:00:58 -0400 Received: from mail-yx1-xb12f.google.com ([2607:f8b0:4864:20::b12f]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1vziel-0004ZE-Oj for qemu-arm@nongnu.org; Mon, 09 Mar 2026 18:00:58 -0400 Received: by mail-yx1-xb12f.google.com with SMTP id 956f58d0204a3-64ca6595c8aso11979048d50.0 for ; Mon, 09 Mar 2026 15:00:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1773093654; x=1773698454; 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=HuKa+5wJp5vlnvtkVWzlsoBzIs1CAqcZV5v+8zXp2z0=; b=SheNSUS1SVY8VhKD3YPYDMrHmZCTPhlLLaAMk1B3abO0OfPJq0CjwkKjKs4IDdJK+M bw2KqmRj0ZkZC0eTxmKKMffBMDhunuDJ1CKK/Fn/TfOvTbOmWYsWQu7wBuACDeB3KSVw lTez4tyNqwJCUkMH3OiQU3IbN4ErpH1ETRrDRx6fbzhdz8hw6rFG7DQGtnFuhSeS2E6x ln0ZBvBPO+ozloxZNUkqoBMDpMquFiB3Nu27gnv/2QWhe/yo1BmBL3DN/+Ft6zn4M2gg PKuZVBkoTlVV/TrSgmbCtg8qoom0YOvC6Wh3dQPD5tYFHi1S1YMaALDHl3OKODaSVe4C OCbA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1773093654; x=1773698454; 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=HuKa+5wJp5vlnvtkVWzlsoBzIs1CAqcZV5v+8zXp2z0=; b=mGp2OMRILjIyKl8bKiIJ0PHCS4frxbXVjq4IAVgmBT6jszlmjB78XxMMQWQe/VEuGV aaS3LsVmVBqRzj4tKkDpnLMcFi0U0USMci7RCwjq+TDgtnVMVP2xS528Z48y5XkkdXZY +JFalXWH5yrLSHudPFGfBd17Jcz45ag07NggPTjx742WTBA8Rp3nk5tHC6jFIDadIz3N 2jGKXXDSgB/lv3OCZd11fi0DlJEeL6+J0RtN+u5PLQ4sWVowb8vk+zcY2yqhmwhr/Ssr 7ireXIPtuTvgLuCh0rEZU8UZfAPeDW/LAXNkWWFMsXh1yhMl9c7mXL92q5U+Isd6pn8v 5DeQ== X-Forwarded-Encrypted: i=1; AJvYcCX0cpaZzmc49PM9MeYX88bh/8T057chbxmKf78dd9qqasyyaIimIvdP1YGXuWRasAue3oW4dUSa2Q==@nongnu.org X-Gm-Message-State: AOJu0YynxeoIHyv9XzLoKa1sUUObg9tRL9jX8FdJWak8+tvoXuu/Si/k vXD7sj/Xsf34fSvGOLMMri6QoUZY7qvbb9XEKWVT1Ub+NU2v5OKJeqZl X-Gm-Gg: ATEYQzwIyDVqDdZOv5y8x+P6UhgIvsXo5eTCe6VGiZpArbQMnLzdxflSyLYUO6Z7CNK Hmyn1Tero0aj5+c/ce4tpGRgcPz6sZkGTzHEDdpoNRHSBmaKNLRmVeuN5tIeHtZWG3CXP5PSQR/ sNgt/5NA2aZHg0/sFXHJvQjDwYMNdZXOBlQy2DUDNiYdBsG9RDFZlRGYjs0Wt+ZB7wBCMzEfkFD Q1YyK8etUfx50hfOXM76ZRqWeX9jwVrIs7GZjGsKHaAA/FEvYJSpAL42tgvYZKM1BZ9QnRP6i/S pBKAMyZUFU2E7X/0CaTA4Myw0hDO+lezYLz//5tpb6DzouFpa7u3zcpvS/hJ5CPQcXaFGh5GKFR x+spFuF6w17wv5cn8E6Z06ScwejOTTs46m66QueGxwApyLycxlnRgexdH5J8GThMbLf0wEpMnEd tMlX0akFnZLHFVVhDh2G0pWs5kRrDp3rTPbCq49doLBd/6Tw== X-Received: by 2002:a05:690c:dc8:b0:799:939:e82f with SMTP id 00721157ae682-799093a04a1mr17054767b3.26.1773093653897; Mon, 09 Mar 2026 15:00:53 -0700 (PDT) Received: from [172.26.74.149] ([185.213.193.97]) by smtp.gmail.com with ESMTPSA id 00721157ae682-7990a54ba7csm5218437b3.19.2026.03.09.15.00.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 Mar 2026 15:00:53 -0700 (PDT) From: Gabriel Brookman Date: Mon, 09 Mar 2026 17:59:43 -0400 Subject: [PATCH v4 11/13] docs: add MTE4 features to docs MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260309-feat-mte4-v4-11-daaf0375620d@gmail.com> References: <20260309-feat-mte4-v4-0-daaf0375620d@gmail.com> In-Reply-To: <20260309-feat-mte4-v4-0-daaf0375620d@gmail.com> To: qemu-devel@nongnu.org Cc: Peter Maydell , Gustavo Romero , Richard Henderson , qemu-arm@nongnu.org, Laurent Vivier , Pierrick Bouvier , Gabriel Brookman X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1773093641; l=2273; i=brookmangabriel@gmail.com; s=20251009; h=from:subject:message-id; bh=SKqzsgfGBjCCy0M3W5MnUoYPUiZpeZ5BL7yzFuAZ0j8=; b=8zvGzJ2A+yT2c3VP0Z73umKrnCZTZwg1+N0ThhzcQ6U2ksnjgoO6iqVF5V1nidkqa3aWpNVvr O1SPUeacE6jASOOrf5bIFHoUmgjNdRNHy48vkL3LTfXmmTY1tm74Xv9 X-Developer-Key: i=brookmangabriel@gmail.com; a=ed25519; pk=m9TtPDal6WzoHNnQiHHKf8dTrv3DUCPUUTujuo8vNrw= Received-SPF: pass client-ip=2607:f8b0:4864:20::b12f; envelope-from=brookmangabriel@gmail.com; helo=mail-yx1-xb12f.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=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-arm@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-arm-bounces+qemu-arm=archiver.kernel.org@nongnu.org Sender: qemu-arm-bounces+qemu-arm=archiver.kernel.org@nongnu.org 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 7787691853..0f529ba6bb 100644 --- a/docs/system/arm/emulation.rst +++ b/docs/system/arm/emulation.rst @@ -109,6 +109,11 @@ 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 84857fb706..7838bb52ea 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 = FIELD_DP64(t, ID_AA64PFR1, CSV2_FRAC, 0); /* FEAT_CSV2_3 */ t = FIELD_DP64(t, ID_AA64PFR1, NMI, 1); /* FEAT_NMI */ t = FIELD_DP64(t, ID_AA64PFR1, GCS, 1); /* FEAT_GCS */ + t = FIELD_DP64(t, ID_AA64PFR1, + MTEX, 1); /* FEAT_MTE_NO_ADDRESS_TAGS + FEAT_MTE_CANONICAL_TAGS */ SET_IDREG(isar, ID_AA64PFR1, t); + t = GET_IDREG(isar, ID_AA64PFR2); + t = FIELD_DP64(t, ID_AA64PFR2, MTEFAR, 1); /* FEAT_MTE_TAGGED_FAR */ + t = FIELD_DP64(t, ID_AA64PFR2, MTESTOREONLY, 1); /* FEAT_MTE_STORE_ONLY */ + t = FIELD_DP64(t, ID_AA64PFR2, MTEPERM, 1); /* FEAT_MTE_PERM */ + SET_IDREG(isar, ID_AA64PFR2, t); + t = GET_IDREG(isar, ID_AA64MMFR0); t = FIELD_DP64(t, ID_AA64MMFR0, PARANGE, 6); /* FEAT_LPA: 52 bits */ t = FIELD_DP64(t, ID_AA64MMFR0, TGRAN16, 1); /* 16k pages supported */ -- 2.52.0