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GET /api/1.0/patches/2196692/?format=api
{ "id": 2196692, "url": "http://patchwork.ozlabs.org/api/1.0/patches/2196692/?format=api", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/1.0/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": "<20260216034432.23912-14-richard.henderson@linaro.org>", "date": "2026-02-16T03:44:32", "name": "[RFC,13/13] target/arm: Add SME properties for KVM", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "0d3b3cf0460cd52c270140e69ef7eecdf62d5634", "submitter": { "id": 72104, "url": "http://patchwork.ozlabs.org/api/1.0/people/72104/?format=api", "name": "Richard Henderson", "email": "richard.henderson@linaro.org" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260216034432.23912-14-richard.henderson@linaro.org/mbox/", "series": [ { "id": 492243, "url": "http://patchwork.ozlabs.org/api/1.0/series/492243/?format=api", "date": "2026-02-16T03:44:19", "name": "target/arm: Support SME for KVM", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/492243/mbox/" } ], "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2196692/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=linaro.org header.i=@linaro.org header.a=rsa-sha256\n header.s=google header.b=xq19cRc2;\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=lists.gnu.org;\n envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n receiver=patchwork.ozlabs.org)" ], "Received": [ "from lists.gnu.org (lists.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 4fDpbb6NsVz1xpl\n\tfor <incoming@patchwork.ozlabs.org>; Mon, 16 Feb 2026 14:46:19 +1100 (AEDT)", "from localhost ([::1] helo=lists1p.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.90_1)\n\t(envelope-from <qemu-devel-bounces@nongnu.org>)\n\tid 1vrpYE-00034K-VR; Sun, 15 Feb 2026 22:45:36 -0500", "from eggs.gnu.org ([2001:470:142:3::10])\n by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from <richard.henderson@linaro.org>)\n id 1vrpXp-0002jp-Mh\n for qemu-devel@nongnu.org; Sun, 15 Feb 2026 22:45:12 -0500", "from mail-pg1-x532.google.com ([2607:f8b0:4864:20::532])\n by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128)\n (Exim 4.90_1) (envelope-from <richard.henderson@linaro.org>)\n id 1vrpXn-0002dx-3E\n for qemu-devel@nongnu.org; Sun, 15 Feb 2026 22:45:08 -0500", "by mail-pg1-x532.google.com with SMTP id\n 41be03b00d2f7-c648bc907ebso1662240a12.3\n for <qemu-devel@nongnu.org>; Sun, 15 Feb 2026 19:45:05 -0800 (PST)", "from stoup.. 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helo=mail-pg1-x532.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,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=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": "Add the properties even if SME is not supported, akin to how\nwe unconditionally add the SVE properties.\n\nSigned-off-by: Richard Henderson <richard.henderson@linaro.org>\n---\n target/arm/cpu64.c | 18 +++++++++++++++---\n 1 file changed, 15 insertions(+), 3 deletions(-)", "diff": "diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c\nindex 38d06af49f..4a7032ba72 100644\n--- a/target/arm/cpu64.c\n+++ b/target/arm/cpu64.c\n@@ -496,9 +496,20 @@ void aarch64_add_sme_properties(Object *obj)\n ARMCPU *cpu = ARM_CPU(obj);\n uint32_t vq;\n \n- object_property_add_bool(obj, \"sme\", cpu_arm_get_sme, cpu_arm_set_sme);\n- object_property_add_bool(obj, \"sme_fa64\", cpu_arm_get_sme_fa64,\n- cpu_arm_set_sme_fa64);\n+ if (cpu->sme_vq.supported) {\n+ object_property_add_bool(obj, \"sme\", cpu_arm_get_sme, cpu_arm_set_sme);\n+ } else {\n+ assert(!tcg_enabled());\n+ prop_add_stub_bool(obj, \"sme\");\n+ }\n+ /*\n+ * Only TCG allows FA64 to be configured; host virtualization\n+ * enables it if and only if the host cpu supports it.\n+ */\n+ if (tcg_enabled()) {\n+ object_property_add_bool(obj, \"sme_fa64\", cpu_arm_get_sme_fa64,\n+ cpu_arm_set_sme_fa64);\n+ }\n \n for (vq = 1; vq <= ARM_MAX_VQ; vq <<= 1) {\n char name[8];\n@@ -784,6 +795,7 @@ static void aarch64_host_initfn(Object *obj)\n #if defined(CONFIG_KVM)\n kvm_arm_set_cpu_features_from_host(cpu);\n aarch64_add_sve_properties(obj);\n+ aarch64_add_sme_properties(obj);\n #elif defined(CONFIG_HVF)\n hvf_arm_set_cpu_features_from_host(cpu);\n #elif defined(CONFIG_WHPX)\n", "prefixes": [ "RFC", "13/13" ] }