From nobody Mon Apr 13 13:43:22 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=linaro.org ARC-Seal: i=1; a=rsa-sha256; t=1772809483; cv=none; d=zohomail.com; s=zohoarc; b=SiOeHJqJWlgBdPwd6XQzMfZRFmiaOJpxwSOjpjv30LYtjhmYJvjtRtinbU/TRUMQQxlpomOfSWKZnJL1lyd/TLz5jNjNA+IFFO+khb6u68ldJDP/5O2lOS9DUJtNdgA+LHSUJ2kTrHD/UpUwBWcs3LJihVNaov82iWsl+j/4X5k= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1772809483; h=Content-Transfer-Encoding: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:Cc; bh=3L9keBAgygnmQFdbbQgwX9U1zoCpckZ2GX7ejdHIGUs=; b=ZTyeX4Cu/sihIvlkcxgXBjKshVGikZybOMqoamJO7QsF2UeX1XOhwMvFAieo/nbZrGoXCKXyIonPnwksnv7w1ZcIaP+eqbk+6+VOfsdz82bRcazXh9emgZ6i8Psn1xd8icSfsoSzDGY2I/rXlemKIMFJeJvdQoyWx6bjilG8ItE= 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 1772809483679687.5463631013313; Fri, 6 Mar 2026 07:04:43 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vyWfp-0005tJ-GA; Fri, 06 Mar 2026 10:01:05 -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 1vyWfT-0004ql-Ro for qemu-devel@nongnu.org; Fri, 06 Mar 2026 10:00:53 -0500 Received: from mail-wm1-x32b.google.com ([2a00:1450:4864:20::32b]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1vyWfR-0002pB-I7 for qemu-devel@nongnu.org; Fri, 06 Mar 2026 10:00:43 -0500 Received: by mail-wm1-x32b.google.com with SMTP id 5b1f17b1804b1-4833115090dso96362195e9.3 for ; Fri, 06 Mar 2026 07:00:41 -0800 (PST) Received: from lanath.. (wildly.archaic.org.uk. [81.2.115.145]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-485246ece8bsm28681845e9.4.2026.03.06.07.00.38 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 06 Mar 2026 07:00:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1772809240; x=1773414040; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:from:to:cc:subject:date:message-id :reply-to; bh=3L9keBAgygnmQFdbbQgwX9U1zoCpckZ2GX7ejdHIGUs=; b=Kue5OOMzq9SB6dgU3lJNMiS7lfmGJiBA/FQCfwnDgwWgPEJ0j6qmCwwDWQLAAJelcs toDeur1gsoTjQmbcg9EKGM90+SgjSVgNVPYyJXO+yU5l4lB3z0WrRoYAOeV+nwBFMSzs L1DO7aCSLpmjD5QnQ51H94D7FXj8bGgh/RnR6reaY8SAniY8xsngbWIs+5nn2Hi5UZ+5 OHAvNt+jQ/XCAPviiifHidtj9fvAj41tFm0qzXFjbSXqbsnMWwcH87LhvpMQElBnGsmq XR/IQdeGxIyPSngRWa2kVofrzsFiGERLJfif2j/VpY7gD0GTQpjpUgihYLazzs5wmgqC FBzA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1772809240; x=1773414040; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:x-gm-gg:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=3L9keBAgygnmQFdbbQgwX9U1zoCpckZ2GX7ejdHIGUs=; b=AGY38NHWyWJadxN3oBEJrr96nrqSydV6ZTG22mM47LFoWMduLsxWouJjJaNwPFwHlP hjimsIOyqmvGfTcD4naxBQT3lZnY0VYMbvve0XMHvASeKgJ60V4kmqMTwVahlBNnIcwy 3E1mRmvYAgsvIyHvnxTDZ5coiLQAEMgBtCy4vRoW3wzwMvrgz9suWN6nQAQTAVOR3U6H ot0JhJU23GIwcdTDbQ1Wglu18iqws/g2TcTJtgsM8XCZB8wiTj3Txt+q9yQ4Odmz7+2F Dn5R46kVLOZMSld+G+ozwquzN8qVF9pH6K8LNzMVuT4Y7+mNsFd5DbFlWz3U250PQ/Ed gsOg== X-Gm-Message-State: AOJu0Yzt6T4LlSGU7wpfF426CkzEJxSxS7/wOJmVJKbt+MNuymDXYJLB 69ztZGm+dhXrvKQLAIDmS7ZabwON+KYsArUTvvxcPpwMYHai5lDTTXotuCXxIfYIeV+94frZvRP SO2mA X-Gm-Gg: ATEYQzytX36qJ6hwCqeRyzq3kSQr83/KTCpTr7fzK050lUY9vHjU96BTrSk/VGbOcK8 wtCgSsuaqmq6WfHAGH+R1sAMvwKfIxJWCF1f5ljBbQkMMTMWCH9Rif//mIg9HzYYSmkteCoMfwV 9VpidQyjEm5jKxeLDInJ+UiZdyDqHFkGGBSOJ5FLCAhPrU9oyBqvmdo5s1anTnUq6Qbn1n2qSia dMGQaqfNe288Hp8n+tpN3emJEfSb7jHUdeu04GCffkAqHODtiQs1kpguMaFc+Uu98Wu5S+ui+tR uNq/EPcW6abBXUfbDsZhHcPD9UaC9HAMj0XFUy+pso8US0ULSbunc/WFwMv9D8n7PcbnL7KiFvm wEeBLJ0MTywOzudpTG0JASfTzSIqQmtxMPly2bvXD1E+ltXSRM981jRTi9VTY52NHbRQFKAt8bx Plg5MaiPUaLfSli0yK274XlpeXI1aRwHDQTuOPs8ptAs6lD34IuJgv0bY/OWvIvObSpI0eR9K1i SVLqtZF1YpfLskQexmzRDz+ZlwVq1g= X-Received: by 2002:a05:600c:3acf:b0:483:b505:9db4 with SMTP id 5b1f17b1804b1-48526978d8fmr38235955e9.31.1772809239758; Fri, 06 Mar 2026 07:00:39 -0800 (PST) From: Peter Maydell To: qemu-devel@nongnu.org Subject: [PULL 48/49] hvf: arm: disable SME when nested virt is active Date: Fri, 6 Mar 2026 14:59:38 +0000 Message-ID: <20260306145939.2162189-49-peter.maydell@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260306145939.2162189-1-peter.maydell@linaro.org> References: <20260306145939.2162189-1-peter.maydell@linaro.org> 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=2a00:1450:4864:20::32b; envelope-from=peter.maydell@linaro.org; helo=mail-wm1-x32b.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, 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-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development 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 @linaro.org) X-ZM-MESSAGEID: 1772809485627154100 Content-Type: text/plain; charset="utf-8" From: Mohamed Mediouni Currently, Apple doesn't support the nested virtualisation + SME combinatio= n. Signed-off-by: Mohamed Mediouni Message-id: 20260306130107.35359-17-mohamed@unpredictable.fr [PMM: use FIELD_DP64_IDREG()] Reviewed-by: Peter Maydell Signed-off-by: Peter Maydell --- target/arm/hvf/hvf.c | 2 ++ target/arm/hvf_arm.h | 5 +++++ 2 files changed, 7 insertions(+) diff --git a/target/arm/hvf/hvf.c b/target/arm/hvf/hvf.c index 0183dd8a60..e22a4d16f8 100644 --- a/target/arm/hvf/hvf.c +++ b/target/arm/hvf/hvf.c @@ -1181,6 +1181,8 @@ static bool hvf_arm_get_host_cpu_features(ARMHostCPUF= eatures *ahcf) =20 if (hvf_nested_virt_enabled()) { FIELD_DP64_IDREG(&host_isar, ID_AA64DFR0, PMUVER, 0x1); + /* SME is not implemented with nested virt on the Apple side */ + FIELD_DP64_IDREG(&host_isar, ID_AA64PFR1, SME, 0); } =20 ahcf->isar =3D host_isar; diff --git a/target/arm/hvf_arm.h b/target/arm/hvf_arm.h index 6b1c3b9792..9cb58ad9ab 100644 --- a/target/arm/hvf_arm.h +++ b/target/arm/hvf_arm.h @@ -11,6 +11,7 @@ #ifndef QEMU_HVF_ARM_H #define QEMU_HVF_ARM_H =20 +#include "system/hvf.h" #include "target/arm/cpu-qom.h" =20 /** @@ -35,6 +36,10 @@ void hvf_arm_set_cpu_features_from_host(ARMCPU *cpu); if (__builtin_available(macOS 15.2, *)) { size_t svl_bytes; hv_return_t result =3D hv_sme_config_get_max_svl_bytes(&svl_by= tes); + /* Nested virt not supported together with SME right now. */ + if (hvf_nested_virt_enabled()) { + return false; + } if (result =3D=3D HV_UNSUPPORTED) { return false; } --=20 2.43.0