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GET /api/1.1/patches/2230476/?format=api
{ "id": 2230476, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2230476/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260429190532.26538-13-mohamed@unpredictable.fr/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/1.1/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20260429190532.26538-13-mohamed@unpredictable.fr>", "date": "2026-04-29T19:05:29", "name": "[v21,12/15] hvf: arm: disable SME when nested virt is active", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "93b0115678cb9d63315caea31005d6507dbe3e8b", "submitter": { "id": 91318, "url": "http://patchwork.ozlabs.org/api/1.1/people/91318/?format=api", "name": "Mohamed Mediouni", "email": "mohamed@unpredictable.fr" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260429190532.26538-13-mohamed@unpredictable.fr/mbox/", "series": [ { "id": 502138, "url": "http://patchwork.ozlabs.org/api/1.1/series/502138/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=502138", "date": "2026-04-29T19:05:29", "name": "HVF: Add support for platform vGIC and nested virtualisation", "version": 21, "mbox": "http://patchwork.ozlabs.org/series/502138/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2230476/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2230476/checks/", "tags": {}, "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=unpredictable.fr header.i=@unpredictable.fr\n header.a=rsa-sha256 header.s=sig1 header.b=fBM9tdIt;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; helo=lists1p.gnu.org;\n envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n receiver=patchwork.ozlabs.org)" ], "Received": [ "from lists1p.gnu.org (lists1p.gnu.org [209.51.188.17])\n\t(using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4g5RcX3DhKz1xqf\n\tfor <incoming@patchwork.ozlabs.org>; Thu, 30 Apr 2026 05:06:50 +1000 (AEST)", "from localhost ([::1] helo=lists1p.gnu.org)\n\tby lists1p.gnu.org with esmtp (Exim 4.90_1)\n\t(envelope-from <qemu-devel-bounces@nongnu.org>)\n\tid 1wIAEj-00021v-1J; Wed, 29 Apr 2026 15:06:17 -0400", "from eggs.gnu.org ([2001:470:142:3::10])\n by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from <mohamed@unpredictable.fr>)\n id 1wIAEh-00020o-NU\n for qemu-devel@nongnu.org; Wed, 29 Apr 2026 15:06:15 -0400", "from p-west3-cluster3-host5-snip4-9.eps.apple.com ([57.103.72.140]\n helo=outbound.ms.icloud.com)\n by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from <mohamed@unpredictable.fr>)\n id 1wIAEg-0000Tv-7R\n for qemu-devel@nongnu.org; Wed, 29 Apr 2026 15:06:15 -0400", "from outbound.ms.icloud.com (unknown [127.0.0.2])\n by p00-icloudmta-asmtp-us-west-3a-60-percent-6 (Postfix) with ESMTPS id\n 17BBB1800BC1; Wed, 29 Apr 2026 19:06:11 +0000 (UTC)", "from localhost.localdomain (unknown [17.57.154.37])\n by p00-icloudmta-asmtp-us-west-3a-60-percent-6 (Postfix) with ESMTPSA id\n 518D218005D1; Wed, 29 Apr 2026 19:06:09 +0000 (UTC)" ], "X-ICL-Out-Info": "\n HUtFAUMHWwJACUgBTUQeDx5WFlZNRAJCTQFIHV8DWRxBAUkdXw9LVxQEFVwFVgZXFHkNXR1FDlYZWgxSD1sOHBZLWFUJCgZdGFgVVgl3HlwASx1XBFQfUxJVHR0LRUtAEwRJAE1fDl4fBBdGGVUERx5dVl4eGQJRHFYNV0NUBF9QSQxBUGxaAEcXSB1dGVlvUF0cDhhZG0AVXRFQGVYJXhUXHkFNWgJWTQVKA18BWwZCAEkKXQJYAF4LTgZeD0YDQxQVXAVWBlcUeQ1dHUUOVhlaDFIPWw4cFktGExlOG1dNWg1AGVgGbRRWFVIEWQ==", "Dkim-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=unpredictable.fr;\n s=sig1; t=1777489573; x=1780081573;\n bh=JKmKVUkd2EnQGVw0Fv4/3w/jcAP1s/vsdxXqtaqNyzo=;\n h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type:x-icloud-hme;\n b=fBM9tdItTXp11r9gm7GrtDeO2qSSZvdJ8J408GVtaVH0L6kiUnzHg7UvpQBVNDab/JpIW2OaagwfkQ8/nw/xJNixoNG2BXvEEs/Sm/iZ9wRjje7dEi9VzMdHXM8VyIcmhYLL8ygduzjF3Aq72mPrSrfk3bFwaCFAvDCV857jrBEdljxJrCBT4PwW2Wfl2+ZfVyRTtFRpeFYSetfumW17ZEENVjvENn+cCJD3MHW8xfTmMU1bnP9DTyrmbWHgaw773ARIe7JzpSSlEeAjV3EMl9DbV7W3DJzGYMydRASOcR3onOatIo1xeK1e+7JfBBsJqJqp2/6/Mc+c4wcOSz80zg==", "mail-alias-created-date": "1752046281608", "From": "Mohamed Mediouni <mohamed@unpredictable.fr>", "To": "qemu-devel@nongnu.org", "Cc": "Phil Dennis-Jordan <phil@philjordan.eu>,\n Yanan Wang <wangyanan55@huawei.com>, Paolo Bonzini <pbonzini@redhat.com>,\n Roman Bolshakov <rbolshakov@ddn.com>,\n =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= <philmd@linaro.org>,\n qemu-arm@nongnu.org, Zhao Liu <zhao1.liu@intel.com>,\n Alexander Graf <agraf@csgraf.de>, Eduardo Habkost <eduardo@habkost.net>,\n Marcel Apfelbaum <marcel.apfelbaum@gmail.com>,\n Peter Maydell <peter.maydell@linaro.org>,\n Mohamed Mediouni <mohamed@unpredictable.fr>", "Subject": "[PATCH v21 12/15] hvf: arm: disable SME when nested virt is active", "Date": "Wed, 29 Apr 2026 21:05:29 +0200", "Message-ID": "<20260429190532.26538-13-mohamed@unpredictable.fr>", "X-Mailer": "git-send-email 2.50.1", "In-Reply-To": "<20260429190532.26538-1-mohamed@unpredictable.fr>", "References": "<20260429190532.26538-1-mohamed@unpredictable.fr>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=UTF-8", "Content-Transfer-Encoding": "8bit", "X-Proofpoint-Spam-Details-Enc": "AW1haW4tMjYwNDI5MDE5MCBTYWx0ZWRfXyg0N179KeJyh\n x8TYhx6RM0g1+4jcv4lCIwTf4q5aUgVMPY9i6y6mkztsdo/zu8SU/p5Jt8vF+vSRQamac/KAvh4\n kjpDOYRnzcfoqAIEMqhozIG8O7WgWdItIRT0kXBvz7hUPwloXYdTBh1sb4dN/QKsKfqtpdKsZ7o\n PxJA8obu6tXCssBch70WUS3FWsEXd5S9c8lEBK69BgPI4BxfrBpai27JH/XRJxfaHvHNrC9mAV+\n 1TXVAYYJzVT9F6NVRqyy9e/H/BdnU4+rGJaK8GXC6U90QbA/tiXoMFBvFtA6HMtK4LGc9/ZlZO6\n 0fegDmI23j1GUAuIvzMXzrJN4N3ofRMMPwzj5kVCv0Q6SxUdFi6rHdEWUd818Q=", "X-Authority-Info-Out": "v=2.4 cv=aoq/yCZV c=1 sm=1 tr=0 ts=69f256a4\n cx=c_apl:c_pps:t_out a=qkKslKyYc0ctBTeLUVfTFg==:117 a=IkcTkHD0fZMA:10\n a=A5OVakUREuEA:10 a=VkNPw1HP01LnGYTKEx00:22 a=KKAkSRfTAAAA:8\n a=x7Faj_LQiP2RIwM6i0UA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10\n a=cvBusfyB2V15izCimMoJ:22", "X-Proofpoint-ORIG-GUID": "_PyNNLsqUmSEjIacjNZSMNMVxeihzJYK", "X-Proofpoint-GUID": "_PyNNLsqUmSEjIacjNZSMNMVxeihzJYK", "Received-SPF": "pass client-ip=57.103.72.140;\n envelope-from=mohamed@unpredictable.fr; helo=outbound.ms.icloud.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,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n SPF_HELO_PASS=-0.001,\n 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 <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "Currently, Apple doesn't support the nested virtualisation + SME combination.\n\nSigned-off-by: Mohamed Mediouni <mohamed@unpredictable.fr>\nReviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>\n---\n target/arm/hvf/hvf.c | 5 +++++\n target/arm/hvf_arm.h | 5 +++++\n 2 files changed, 10 insertions(+)", "diff": "diff --git a/target/arm/hvf/hvf.c b/target/arm/hvf/hvf.c\nindex ceeb61fbc0..51b37b3331 100644\n--- a/target/arm/hvf/hvf.c\n+++ b/target/arm/hvf/hvf.c\n@@ -1206,6 +1206,11 @@ static bool hvf_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf)\n FIELD_DP64_IDREG(&host_isar, ID_AA64DFR0, PMUVER, 0x1);\n }\n \n+ if (hvf_nested_virt_enabled()) {\n+ /* SME is not implemented with nested virt on the Apple side */\n+ FIELD_DP64_IDREG(&host_isar, ID_AA64PFR1, SME, 0);\n+ }\n+\n ahcf->isar = host_isar;\n \n /*\ndiff --git a/target/arm/hvf_arm.h b/target/arm/hvf_arm.h\nindex 8029d48caf..59e19f6e84 100644\n--- a/target/arm/hvf_arm.h\n+++ b/target/arm/hvf_arm.h\n@@ -11,6 +11,7 @@\n #ifndef QEMU_HVF_ARM_H\n #define QEMU_HVF_ARM_H\n \n+#include \"system/hvf.h\"\n #include \"target/arm/cpu-qom.h\"\n \n /**\n@@ -35,6 +36,10 @@ void hvf_arm_set_cpu_features_from_host(ARMCPU *cpu);\n if (__builtin_available(macOS 15.2, *)) {\n size_t svl_bytes;\n hv_return_t result = hv_sme_config_get_max_svl_bytes(&svl_bytes);\n+ /* Nested virt not supported together with SME right now. */\n+ if (hvf_nested_virt_enabled()) {\n+ return false;\n+ }\n if (result == HV_UNSUPPORTED) {\n return false;\n }\n", "prefixes": [ "v21", "12/15" ] }