From nobody Wed Oct 23 00:38:55 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=1728986692; cv=none; d=zohomail.com; s=zohoarc; b=ZYrLb4dD+jdt4rzdVCrKAtEk69AAKOwfPSOR/res6nJ09/OSkf4Hon9f9rVNonVb4QV7Erjh36zQ73+4+eM7Hn6TI/K+sNm3Ct3Y41QuA0JR3dn/hFlO6HLwnM8iJHfBzG4AS5wkoAKik2GaAb5pJavJE2khA7waf0kV5EgPGuw= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1728986692; 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=llQ97SlU6OmLui9zm9B9wMQmvYKx7Rmixh9ZbeE+D0A=; b=Np9Xo/Xt13AVBxNXc4KLp3dUtMGrkN6r5cTRRA4aKv+aUN4iHC2bxeP8D1mdxa9i4APCnsMavrNFR4v5xTwzi+OTEHM5SI+nUPm8N8IDjV6HdiQUarreM08dwZZ9P0BLTV6rIAYHjABf60Mk+g8rSqWhG6NkoZfXdyckHcZL1Ok= 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 1728986691930328.25248830539465; Tue, 15 Oct 2024 03:04:51 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1t0ePr-0006dc-Fb; Tue, 15 Oct 2024 06:04:35 -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 1t0ePn-0006Mu-CZ; Tue, 15 Oct 2024 06:04:33 -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 1t0ePl-0001Gq-IS; Tue, 15 Oct 2024 06:04:30 -0400 Received: from mail.maildlp.com (unknown [172.18.186.216]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4XSV5g0mr5z6FGpc; Tue, 15 Oct 2024 18:02:47 +0800 (CST) Received: from frapeml500007.china.huawei.com (unknown [7.182.85.172]) by mail.maildlp.com (Postfix) with ESMTPS id 4FE03140AA7; Tue, 15 Oct 2024 18:04:24 +0800 (CST) Received: from 00293818-MRGF.huawei.com (10.48.146.149) by frapeml500007.china.huawei.com (7.182.85.172) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Tue, 15 Oct 2024 12:04:04 +0200 To: , , CC: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Subject: [PATCH RFC V5 10/30] arm/virt: Enhance GED framework to handle vCPU hotplug events Date: Tue, 15 Oct 2024 10:59:52 +0100 Message-ID: <20241015100012.254223-11-salil.mehta@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241015100012.254223-1-salil.mehta@huawei.com> References: <20241015100012.254223-1-salil.mehta@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.48.146.149] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To frapeml500007.china.huawei.com (7.182.85.172) 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, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1728986694670116600 Content-Type: text/plain; charset="utf-8" During GED device creation at Virt Machine initialization, add a new vCPU hotplug event to the existing set of supported GED device events. Additiona= lly, initialize the memory map for the vCPU hotplug *control device*, which will provide an interface to exchange ACPI events between QEMU/VMM and the Guest Kernel. Signed-off-by: Salil Mehta Reviewed-by: Gavin Shan --- hw/arm/virt.c | 5 ++++- include/hw/arm/virt.h | 1 + 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/hw/arm/virt.c b/hw/arm/virt.c index 00fd65b4e1..b9df428049 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -81,6 +81,7 @@ #include "hw/mem/pc-dimm.h" #include "hw/mem/nvdimm.h" #include "hw/acpi/generic_event_device.h" +#include "hw/acpi/cpu_hotplug.h" #include "hw/virtio/virtio-md-pci.h" #include "hw/virtio/virtio-iommu.h" #include "hw/char/pl011.h" @@ -181,6 +182,7 @@ static const MemMapEntry base_memmap[] =3D { [VIRT_NVDIMM_ACPI] =3D { 0x09090000, NVDIMM_ACPI_IO_LEN}, [VIRT_PVTIME] =3D { 0x090a0000, 0x00010000 }, [VIRT_SECURE_GPIO] =3D { 0x090b0000, 0x00001000 }, + [VIRT_CPUHP_ACPI] =3D { 0x090c0000, ACPI_CPU_HOTPLUG_REG_LEN}, [VIRT_MMIO] =3D { 0x0a000000, 0x00000200 }, /* ...repeating for a total of NUM_VIRTIO_TRANSPORTS, each of that siz= e */ [VIRT_PLATFORM_BUS] =3D { 0x0c000000, 0x02000000 }, @@ -678,7 +680,7 @@ static inline DeviceState *create_acpi_ged(VirtMachineS= tate *vms) DeviceState *dev; MachineState *ms =3D MACHINE(vms); int irq =3D vms->irqmap[VIRT_ACPI_GED]; - uint32_t event =3D ACPI_GED_PWR_DOWN_EVT; + uint32_t event =3D ACPI_GED_PWR_DOWN_EVT | ACPI_GED_CPU_HOTPLUG_EVT; =20 if (ms->ram_slots) { event |=3D ACPI_GED_MEM_HOTPLUG_EVT; @@ -694,6 +696,7 @@ static inline DeviceState *create_acpi_ged(VirtMachineS= tate *vms) =20 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, vms->memmap[VIRT_ACPI_GED].bas= e); sysbus_mmio_map(SYS_BUS_DEVICE(dev), 1, vms->memmap[VIRT_PCDIMM_ACPI].= base); + sysbus_mmio_map(SYS_BUS_DEVICE(dev), 3, vms->memmap[VIRT_CPUHP_ACPI].b= ase); sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, qdev_get_gpio_in(vms->gic, = irq)); =20 return dev; diff --git a/include/hw/arm/virt.h b/include/hw/arm/virt.h index 362422413c..b5bfb75f71 100644 --- a/include/hw/arm/virt.h +++ b/include/hw/arm/virt.h @@ -78,6 +78,7 @@ enum { VIRT_PCDIMM_ACPI, VIRT_ACPI_GED, VIRT_NVDIMM_ACPI, + VIRT_CPUHP_ACPI, VIRT_PVTIME, VIRT_LOWMEMMAP_LAST, }; --=20 2.34.1