From patchwork Sat Sep 30 00:19:29 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Salil Mehta X-Patchwork-Id: 13404874 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A2424E7734C for ; Sat, 30 Sep 2023 00:22:42 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qmNkV-0008HL-Bi; Fri, 29 Sep 2023 20:22:24 -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 1qmNkJ-0007w1-O0; Fri, 29 Sep 2023 20:22:12 -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 1qmNkG-0001Rj-R3; Fri, 29 Sep 2023 20:22:10 -0400 Received: from lhrpeml500001.china.huawei.com (unknown [172.18.147.226]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4Ry7FP3ZZhz6K6hC; Sat, 30 Sep 2023 08:22:01 +0800 (CST) Received: from A190218597.china.huawei.com (10.195.35.96) by lhrpeml500001.china.huawei.com (7.191.163.213) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.31; Sat, 30 Sep 2023 01:21:46 +0100 To: , CC: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Subject: [PATCH V2 06/10] hw/acpi: Update GED _EVT method AML with cpu scan Date: Sat, 30 Sep 2023 01:19:29 +0100 Message-ID: <20230930001933.2660-7-salil.mehta@huawei.com> X-Mailer: git-send-email 2.8.3 In-Reply-To: <20230930001933.2660-1-salil.mehta@huawei.com> References: <20230930001933.2660-1-salil.mehta@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.195.35.96] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To lhrpeml500001.china.huawei.com (7.191.163.213) X-CFilter-Loop: Reflected 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_H5=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 X-Patchwork-Original-From: Salil Mehta via From: Salil Mehta Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org OSPM evaluates _EVT method to map the event. The cpu hotplug event eventually 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. The change in this patch updates the GED AML _EVT method with the call to \\_SB.CPUS.CSCN which will do above. Co-developed-by: Keqian Zhu Signed-off-by: Keqian Zhu Signed-off-by: Salil Mehta Reviewed-by: Jonathan Cameron Reviewed-by: Gavin Shan --- hw/acpi/generic_event_device.c | 4 ++++ include/hw/acpi/cpu_hotplug.h | 2 ++ 2 files changed, 6 insertions(+) diff --git a/hw/acpi/generic_event_device.c b/hw/acpi/generic_event_device.c index d2fa1d0e4a..62d504d231 100644 --- a/hw/acpi/generic_event_device.c +++ b/hw/acpi/generic_event_device.c @@ -108,6 +108,10 @@ void build_ged_aml(Aml *table, const char *name, HotplugHandler *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(ACPI_CPU_CONTAINER "." + 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_hotplug.h b/include/hw/acpi/cpu_hotplug.h index 48b291e45e..ef631750b4 100644 --- a/include/hw/acpi/cpu_hotplug.h +++ b/include/hw/acpi/cpu_hotplug.h @@ -20,6 +20,8 @@ #include "hw/acpi/cpu.h" #define ACPI_CPU_HOTPLUG_REG_LEN 12 +#define ACPI_CPU_SCAN_METHOD "CSCN" +#define ACPI_CPU_CONTAINER "\\_SB.CPUS" typedef struct AcpiCpuHotplug { Object *device;