From nobody Sun Dec 29 18:35:22 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=1720791879; cv=none; d=zohomail.com; s=zohoarc; b=nIZCMNZeRrttaU0OzJpAxLFlapWfC+fIdG1J1FMFepoxKuMjwT1ZTeMPwGZ+6AQvthH7vZokMXlg5liI1Odhf9M4CznaSPFxt+AQYwjAs9QNlrykTUUhE1NyqVhK2HqCKAkVYF6Fbv6KljPP2aYSAtdmiU6L73RmKoMSaTpXg88= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1720791879; 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=/Ez9N+vDiZrBeI5kwgN1iDfMJScENIL8yi3KWEoJqvI=; b=gW0ZRb37AkAy8f5s/ZRHJ+vdCrqSQc7Z3Fwu5V9tc6y4ikKSuFfNrWQ6SueqjbAzGxqTrYuTrEobrQ3q1JVmRsyXFy3Yi6CUTq080mlqcSHXFH472CdkxoEZFu2AjhOR4hpQCZh/X4sjHMU/d3PlVGIjNaCL1pYq7iatv5nOM0Q= 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 1720791879150754.5311367834264; Fri, 12 Jul 2024 06:44:39 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sSGZa-0005bl-58; Fri, 12 Jul 2024 09:44:30 -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 1sSGZQ-0004by-2z; Fri, 12 Jul 2024 09:44:21 -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 1sSGZM-0002C8-EO; Fri, 12 Jul 2024 09:44:18 -0400 Received: from mail.maildlp.com (unknown [172.18.186.216]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4WLCTB6QY6z6H6xw; Fri, 12 Jul 2024 21:42:38 +0800 (CST) Received: from lhrpeml500001.china.huawei.com (unknown [7.191.163.213]) by mail.maildlp.com (Postfix) with ESMTPS id 027D2140A86; Fri, 12 Jul 2024 21:44:11 +0800 (CST) Received: from 00293818-MRGF.huawei.com (10.195.244.27) 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, 12 Jul 2024 14:43:49 +0100 To: , CC: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Jonathan Cameron , Shaoqin Huang , Zhao Liu Subject: [PATCH V14 4/7] hw/acpi: Update GED _EVT method AML with CPU scan Date: Fri, 12 Jul 2024 14:41:58 +0100 Message-ID: <20240712134201.214699-5-salil.mehta@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240712134201.214699-1-salil.mehta@huawei.com> References: <20240712134201.214699-1-salil.mehta@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.195.244.27] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) 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: 1720791880254116300 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 --- hw/acpi/cpu.c | 2 +- hw/acpi/generic_event_device.c | 4 ++++ include/hw/acpi/cpu.h | 1 + 3 files changed, 6 insertions(+), 1 deletion(-) diff --git a/hw/acpi/cpu.c b/hw/acpi/cpu.c index ee99290800..57906efebf 100644 --- a/hw/acpi/cpu.c +++ b/hw/acpi/cpu.c @@ -323,7 +323,7 @@ const VMStateDescription vmstate_cpu_hotplug =3D { #define CPUHP_RES_DEVICE "PRES" #define CPU_LOCK "CPLK" #define CPU_STS_METHOD "CSTA" -#define CPU_SCAN_METHOD "CSCN" +#define CPU_SCAN_METHOD ACPI_CPU_SCAN_METHOD #define CPU_NOTIFY_METHOD "CTFY" #define CPU_EJECT_METHOD "CEJ0" #define CPU_OST_METHOD "COST" diff --git a/hw/acpi/generic_event_device.c b/hw/acpi/generic_event_device.c index e762fc6128..cbd2e2d26e 100644 --- a/hw/acpi/generic_event_device.c +++ b/hw/acpi/generic_event_device.c @@ -109,6 +109,10 @@ void build_ged_aml(Aml *table, const char *name, Hotpl= ugHandler *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("\\_SB."GED_DEVICE"." + ACPI_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/cpu.h b/include/hw/acpi/cpu.h index df87b15997..451dda448a 100644 --- a/include/hw/acpi/cpu.h +++ b/include/hw/acpi/cpu.h @@ -20,6 +20,7 @@ #include "hw/hotplug.h" =20 #define ACPI_CPU_HOTPLUG_REG_LEN 12 +#define ACPI_CPU_SCAN_METHOD "CSCN" =20 typedef struct AcpiCpuStatus { CPUState *cpu; --=20 2.34.1