From nobody Mon Nov 25 03:37:22 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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=nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1718322259; cv=none; d=zohomail.com; s=zohoarc; b=VlMjmRC5USRYf+RmfhkG630uxbAcL+BhTngaPGB3sBhG/YX0hQk8B257kxudfTmMDExmyZD6S56H9JGG5y1ZxmrpUAs6+QKl4DHvYzPtI/g2AINFR0PZsK9SYRTkFD0nRhlfJZAEPmRENNDV5v3Jd6yo+escY3+zhywQuFzDZ5w= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1718322259; 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:Reply-To:Reply-To:References:Sender:Subject:Subject:To:To:Message-Id; bh=U0MkhtkTmorqu3YZOEBY5M8g+0j8xFJH79hP7MzVzi4=; b=nBQ0dd76xDQ9Ds5zDyO6HSkMmBs6rqca+WyYhsTlfFN2ayaZOz9Dxipt89SI/1SXYmAmdF8s/aEqhnky1W46+HGuEo7hRtn7JGGfjdH8bGT1mzxTytSBBNbM86hZlBYsdh8NXIEIpPkTIs70fU9rVcEw/s5foB/F/tiZuKeGVpw= ARC-Authentication-Results: i=1; mx.zohomail.com; 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 1718322259604321.719681263031; Thu, 13 Jun 2024 16:44:19 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sHu6t-0008KR-DG; Thu, 13 Jun 2024 19:44:03 -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 1sHu6r-0008I0-Ea; Thu, 13 Jun 2024 19:44:01 -0400 Received: from frasgout.his.huawei.com ([185.176.79.56]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sHu6p-000494-JT; Thu, 13 Jun 2024 19:44:01 -0400 Received: from mail.maildlp.com (unknown [172.18.186.216]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4W0fBL0Bl2z6K6Sd; Fri, 14 Jun 2024 07:43:54 +0800 (CST) Received: from lhrpeml500001.china.huawei.com (unknown [7.191.163.213]) by mail.maildlp.com (Postfix) with ESMTPS id DD488140C72; Fri, 14 Jun 2024 07:43:56 +0800 (CST) Received: from 00293818-MRGF.china.huawei.com (10.195.245.24) by lhrpeml500001.china.huawei.com (7.191.163.213) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Fri, 14 Jun 2024 00:43:34 +0100 To: , , CC: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Subject: [PATCH RFC V3 16/29] hw/acpi: Make _MAT method optional Date: Fri, 14 Jun 2024 00:36:26 +0100 Message-ID: <20240613233639.202896-17-salil.mehta@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240613233639.202896-1-salil.mehta@huawei.com> References: <20240613233639.202896-1-salil.mehta@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.195.245.24] X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To lhrpeml500001.china.huawei.com (7.191.163.213) 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=185.176.79.56; envelope-from=salil.mehta@huawei.com; helo=frasgout.his.huawei.com X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-to: Salil Mehta From: Salil Mehta via Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1718322259945100001 Content-Type: text/plain; charset="utf-8" From: Jean-Philippe Brucker The GICC interface on arm64 vCPUs is statically defined in the MADT, and doesn't require a _MAT entry. Although the GICC is indicated as present by the MADT entry, it can only be used from vCPU sysregs, which aren't accessible until hot-add. Co-developed-by: Jean-Philippe Brucker Signed-off-by: Jean-Philippe Brucker Co-developed-by: Jonathan Cameron Signed-off-by: Jonathan Cameron Reviewed-by: Gavin Shan Signed-off-by: Salil Mehta --- hw/acpi/cpu.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/hw/acpi/cpu.c b/hw/acpi/cpu.c index 40b8899125..2240c6e108 100644 --- a/hw/acpi/cpu.c +++ b/hw/acpi/cpu.c @@ -717,10 +717,13 @@ void build_cpus_aml(Aml *table, MachineState *machine= , CPUHotplugFeatures opts, aml_append(dev, method); =20 /* build _MAT object */ - build_madt_cpu(i, arch_ids, madt_buf, true); /* set enabled fl= ag */ - aml_append(dev, aml_name_decl("_MAT", + if (build_madt_cpu) { + build_madt_cpu(i, arch_ids, madt_buf, + true); /* set enabled flag */ + aml_append(dev, aml_name_decl("_MAT", aml_buffer(madt_buf->len, (uint8_t *)madt_buf->data))); - g_array_free(madt_buf, true); + g_array_free(madt_buf, true); + } =20 if (CPU(arch_ids->cpus[i].cpu) !=3D first_cpu) { method =3D aml_method("_EJ0", 1, AML_NOTSERIALIZED); --=20 2.34.1