From nobody Sun Dec 29 01:23:45 2024 Delivered-To: importer2@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+importer2=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1721128683; cv=none; d=zohomail.com; s=zohoarc; b=DaLnAw+ANvvEKJ7+U4dAaJRnNLO7Df7ki6puMBIRSydgqRIsO5xBClXLDcCRqKACbN2VP1eG1tne/TZvbQ0vXwgNsc7c8wNFion8PKYAnWF9VHzFEu2tg5CUzMump2NK8wClxYLrvZ3ugIJbTnNqXPK4dcV+SoW60aeBmnPjobg= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1721128683; 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=914+jDm+ol8oiejJm/fh00RZCzRB388srXRVEdvCm8Q=; b=N5+FhBtl2QuRo1GFV16+BC3WTtM+EBgZF/08zc1+M9Ci0L/lGQGoIXfTp/6o5nUNFoLX28v8Co1mRhBVz3jf1HHegi6CesJfdU+uZ6F+REeMJb4AS7QwfiJX8rDQ5yOfeEWdAmXRNw0vqL/KJf02iLo8CSwN75/aTJe+I+rdqLY= 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+importer2=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 1721128683489742.8376693835733; Tue, 16 Jul 2024 04:18:03 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sTgBO-0004L5-0y; Tue, 16 Jul 2024 07:17:23 -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 1sTgB0-000422-7I; Tue, 16 Jul 2024 07:16:59 -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 1sTgAw-0001m4-7R; Tue, 16 Jul 2024 07:16:56 -0400 Received: from mail.maildlp.com (unknown [172.18.186.216]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4WNc0Y6Rl4z6K9BQ; Tue, 16 Jul 2024 19:14:37 +0800 (CST) Received: from lhrpeml500001.china.huawei.com (unknown [7.191.163.213]) by mail.maildlp.com (Postfix) with ESMTPS id 96E0F140C72; Tue, 16 Jul 2024 19:16:50 +0800 (CST) Received: from 00293818-MRGF.huawei.com (10.126.170.92) 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; Tue, 16 Jul 2024 12:16:29 +0100 To: , CC: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Jonathan Cameron , Shaoqin Huang , Zhao Liu Subject: [PATCH V16 4/7] hw/acpi: Update GED _EVT method AML with CPU scan Date: Tue, 16 Jul 2024 12:14:59 +0100 Message-ID: <20240716111502.202344-5-salil.mehta@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240716111502.202344-1-salil.mehta@huawei.com> References: <20240716111502.202344-1-salil.mehta@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.126.170.92] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) 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+importer2=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 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+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZM-MESSAGEID: 1721128684141116300 Content-Type: text/plain; charset="utf-8" OSPM evaluates _EVT method to map the event. The CPU hotplug event eventual= ly results in start of the CPU scan. Scan figures out the CPU and the kind of event(plug/unplug) and notifies it back to the guest. Update the GED AML _E= VT method with the call to method \\_SB.CPUS.CSCN (via \\_SB.GED.CSCN) Architecture specific code [1] might initialize its CPUs AML code by calling common function build_cpus_aml() like below for ARM: build_cpus_aml(scope, ms, opts, xx_madt_cpu_entry, memmap[VIRT_CPUHP_ACPI].= base, "\\_SB", "\\_SB.GED.CSCN", AML_SYSTEM_MEMORY); [1] https://lore.kernel.org/qemu-devel/20240613233639.202896-13-salil.mehta= @huawei.com/ Co-developed-by: Keqian Zhu Signed-off-by: Keqian Zhu Signed-off-by: Salil Mehta Reviewed-by: Jonathan Cameron Reviewed-by: Gavin Shan Tested-by: Vishnu Pajjuri Tested-by: Xianglai Li Tested-by: Miguel Luis Reviewed-by: Shaoqin Huang Tested-by: Zhao Liu Reviewed-by: Igor Mammedov --- hw/acpi/generic_event_device.c | 3 +++ include/hw/acpi/generic_event_device.h | 1 + 2 files changed, 4 insertions(+) diff --git a/hw/acpi/generic_event_device.c b/hw/acpi/generic_event_device.c index 4641933a0f..15b4c3ebbf 100644 --- a/hw/acpi/generic_event_device.c +++ b/hw/acpi/generic_event_device.c @@ -108,6 +108,9 @@ void build_ged_aml(Aml *table, const char *name, Hotplu= gHandler *hotplug_dev, aml_append(if_ctx, aml_call0(MEMORY_DEVICES_CONTAINER "." MEMORY_SLOT_SCAN_METHOD)); break; + case ACPI_GED_CPU_HOTPLUG_EVT: + aml_append(if_ctx, aml_call0(AML_GED_EVT_CPU_SCAN_METHOD)); + break; case ACPI_GED_PWR_DOWN_EVT: aml_append(if_ctx, aml_notify(aml_name(ACPI_POWER_BUTTON_DEVICE), diff --git a/include/hw/acpi/generic_event_device.h b/include/hw/acpi/gener= ic_event_device.h index e091ac2108..40af3550b5 100644 --- a/include/hw/acpi/generic_event_device.h +++ b/include/hw/acpi/generic_event_device.h @@ -87,6 +87,7 @@ OBJECT_DECLARE_SIMPLE_TYPE(AcpiGedState, ACPI_GED) #define GED_DEVICE "GED" #define AML_GED_EVT_REG "EREG" #define AML_GED_EVT_SEL "ESEL" +#define AML_GED_EVT_CPU_SCAN_METHOD "\\_SB.GED.CSCN" =20 /* * Platforms need to specify the GED event bitmap --=20 2.34.1