From patchwork Fri Sep 29 12:43:00 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Salil Mehta X-Patchwork-Id: 13404214 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 CB1B5E71D2A for ; Fri, 29 Sep 2023 12:46:50 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qmCsu-0006mx-FQ; Fri, 29 Sep 2023 08:46:20 -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 1qmCso-0006VB-NM; Fri, 29 Sep 2023 08:46:15 -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 1qmCsm-0007DE-S2; Fri, 29 Sep 2023 08:46:14 -0400 Received: from lhrpeml500001.china.huawei.com (unknown [172.18.147.201]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4Rxqms5bdwz67yyF; Fri, 29 Sep 2023 20:44:45 +0800 (CST) Received: from A190218597.china.huawei.com (10.48.156.153) 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; Fri, 29 Sep 2023 13:45:50 +0100 To: , CC: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Subject: [PATCH 5/9] hw/acpi: Update CPUs AML with cpu-(ctrl)dev change Date: Fri, 29 Sep 2023 13:43:00 +0100 Message-ID: <20230929124304.13672-6-salil.mehta@huawei.com> X-Mailer: git-send-email 2.8.3 In-Reply-To: <20230929124304.13672-1-salil.mehta@huawei.com> References: <20230929124304.13672-1-salil.mehta@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.48.156.153] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) 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 CPUs Control device(\\_SB.PCI0) register interface for the x86 arch is based on PCI and is IO port based and hence existing cpus AML code assumes _CRS objects would evaluate to a system resource which describes IO Port address. But on ARM arch CPUs control device(\\_SB.PRES) register interface is memory-mapped hence _CRS object should evaluate to system resource which describes memory-mapped base address. This cpus AML code change updates the existing inerface of the build cpus AML function to accept both IO/MEMORY type regions and update the _CRS object correspondingly. Co-developed-by: Keqian Zhu Signed-off-by: Keqian Zhu Signed-off-by: Salil Mehta --- hw/acpi/cpu.c | 23 ++++++++++++++++------- hw/i386/acpi-build.c | 2 +- include/hw/acpi/cpu.h | 5 +++-- 3 files changed, 20 insertions(+), 10 deletions(-) diff --git a/hw/acpi/cpu.c b/hw/acpi/cpu.c index 45defdc0e2..66a71660ec 100644 --- a/hw/acpi/cpu.c +++ b/hw/acpi/cpu.c @@ -338,9 +338,10 @@ const VMStateDescription vmstate_cpu_hotplug = { #define CPU_FW_EJECT_EVENT "CEJF" void build_cpus_aml(Aml *table, MachineState *machine, CPUHotplugFeatures opts, - hwaddr io_base, + hwaddr base_addr, const char *res_root, - const char *event_handler_method) + const char *event_handler_method, + AmlRegionSpace rs) { Aml *ifctx; Aml *field; @@ -367,13 +368,19 @@ void build_cpus_aml(Aml *table, MachineState *machine, CPUHotplugFeatures opts, aml_append(cpu_ctrl_dev, aml_mutex(CPU_LOCK, 0)); crs = aml_resource_template(); - aml_append(crs, aml_io(AML_DECODE16, io_base, io_base, 1, + if (rs == AML_SYSTEM_IO) { + aml_append(crs, aml_io(AML_DECODE16, base_addr, base_addr, 1, ACPI_CPU_HOTPLUG_REG_LEN)); + } else { + aml_append(crs, aml_memory32_fixed(base_addr, + ACPI_CPU_HOTPLUG_REG_LEN, AML_READ_WRITE)); + } + aml_append(cpu_ctrl_dev, aml_name_decl("_CRS", crs)); /* declare CPU hotplug MMIO region with related access fields */ aml_append(cpu_ctrl_dev, - aml_operation_region("PRST", AML_SYSTEM_IO, aml_int(io_base), + aml_operation_region("PRST", rs, aml_int(base_addr), ACPI_CPU_HOTPLUG_REG_LEN)); field = aml_field("PRST", AML_BYTE_ACC, AML_NOLOCK, @@ -699,9 +706,11 @@ void build_cpus_aml(Aml *table, MachineState *machine, CPUHotplugFeatures opts, aml_append(sb_scope, cpus_dev); aml_append(table, sb_scope); - method = aml_method(event_handler_method, 0, AML_NOTSERIALIZED); - aml_append(method, aml_call0("\\_SB.CPUS." CPU_SCAN_METHOD)); - aml_append(table, method); + if (event_handler_method) { + method = aml_method(event_handler_method, 0, AML_NOTSERIALIZED); + aml_append(method, aml_call0("\\_SB.CPUS." CPU_SCAN_METHOD)); + aml_append(table, method); + } g_free(cphp_res_path); } diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index 4d2d40bab5..611d3d044d 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -1550,7 +1550,7 @@ build_dsdt(GArray *table_data, BIOSLinker *linker, .fw_unplugs_cpu = pm->smi_on_cpu_unplug, }; build_cpus_aml(dsdt, machine, opts, pm->cpu_hp_io_base, - "\\_SB.PCI0", "\\_GPE._E02"); + "\\_SB.PCI0", "\\_GPE._E02", AML_SYSTEM_IO); } if (pcms->memhp_io_base && nr_mem) { diff --git a/include/hw/acpi/cpu.h b/include/hw/acpi/cpu.h index 999caaf510..b87ebfdf4b 100644 --- a/include/hw/acpi/cpu.h +++ b/include/hw/acpi/cpu.h @@ -56,9 +56,10 @@ typedef struct CPUHotplugFeatures { } CPUHotplugFeatures; void build_cpus_aml(Aml *table, MachineState *machine, CPUHotplugFeatures opts, - hwaddr io_base, + hwaddr base_addr, const char *res_root, - const char *event_handler_method); + const char *event_handler_method, + AmlRegionSpace rs); void acpi_cpu_ospm_status(CPUHotplugState *cpu_st, ACPIOSTInfoList ***list);