From nobody Tue Feb 10 00:22:45 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; 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=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1623957930558429.47901789947036; Thu, 17 Jun 2021 12:25:30 -0700 (PDT) Received: from localhost ([::1]:37172 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ltxdp-0005Wb-4b for importer@patchew.org; Thu, 17 Jun 2021 15:25:29 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:56770) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ltxNQ-0004Lu-Ty for qemu-devel@nongnu.org; Thu, 17 Jun 2021 15:08:32 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:23255) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ltxNM-0003kP-Vs for qemu-devel@nongnu.org; Thu, 17 Jun 2021 15:08:32 -0400 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-260-mRGWBFoVMCam88LwSp7MZw-1; Thu, 17 Jun 2021 15:08:26 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id A0B9619324B9; Thu, 17 Jun 2021 19:08:25 +0000 (UTC) Received: from fedora.redhat.com (unknown [10.43.2.201]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 4B0795D71D; Thu, 17 Jun 2021 19:08:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1623956907; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=VqQbPH4OkhB+iqHaD2sCPIJrUe0NbSQWb5bftZKHNGA=; b=NqG+/8tsGesoyKUlyTjvZ99ngZ3j2Urabb2d3pl4dHlOeTRAsR0mnJi/mxnsSt7poaKRhv eQBinFoFyz3mSNJhkEiqyv+y/zGJHm7chdHFbmbc+x0SzLBc8XR12nReR+K2tdkEuk3PrE 7n2XFeU/pues7toCY0irOqTPkEYBnnM= X-MC-Unique: mRGWBFoVMCam88LwSp7MZw-1 From: Julia Suvorova To: qemu-devel@nongnu.org Subject: [PATCH v5 3/7] hw/acpi/ich9: Enable ACPI PCI hot-plug Date: Thu, 17 Jun 2021 21:07:35 +0200 Message-Id: <20210617190739.3673064-4-jusual@redhat.com> In-Reply-To: <20210617190739.3673064-1-jusual@redhat.com> References: <20210617190739.3673064-1-jusual@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=jusual@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable 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=170.10.133.124; envelope-from=jusual@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.197, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Igor Mammedov , Julia Suvorova , Eduardo Habkost , "Michael S. Tsirkin" Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Add acpi_pcihp to ich9_pm as part of 'acpi-pci-hotplug-with-bridge-support' option. Set default to false. Signed-off-by: Julia Suvorova Reviewed-by: Igor Mammedov Reviewed-by: Marcel Apfelbaum --- hw/i386/acpi-build.h | 1 + include/hw/acpi/ich9.h | 3 ++ hw/acpi/ich9.c | 67 ++++++++++++++++++++++++++++++++++++++++++ hw/acpi/pcihp.c | 5 +++- hw/i386/acpi-build.c | 2 +- 5 files changed, 76 insertions(+), 2 deletions(-) diff --git a/hw/i386/acpi-build.h b/hw/i386/acpi-build.h index 487ec7710f..0dce155c8c 100644 --- a/hw/i386/acpi-build.h +++ b/hw/i386/acpi-build.h @@ -10,5 +10,6 @@ extern const struct AcpiGenericAddress x86_nvdimm_acpi_ds= mio; #define ACPI_PCIHP_BNMR_BASE 0x10 =20 void acpi_setup(void); +Object *acpi_get_i386_pci_host(void); =20 #endif diff --git a/include/hw/acpi/ich9.h b/include/hw/acpi/ich9.h index 596120d97f..a329ce43ab 100644 --- a/include/hw/acpi/ich9.h +++ b/include/hw/acpi/ich9.h @@ -24,6 +24,7 @@ #include "hw/acpi/acpi.h" #include "hw/acpi/cpu_hotplug.h" #include "hw/acpi/cpu.h" +#include "hw/acpi/pcihp.h" #include "hw/acpi/memory_hotplug.h" #include "hw/acpi/acpi_dev_interface.h" #include "hw/acpi/tco.h" @@ -55,6 +56,8 @@ typedef struct ICH9LPCPMRegs { AcpiCpuHotplug gpe_cpu; CPUHotplugState cpuhp_state; =20 + bool use_acpi_hotplug_bridge; + AcpiPciHpState acpi_pci_hotplug; MemHotplugState acpi_memory_hotplug; =20 uint8_t disable_s3; diff --git a/hw/acpi/ich9.c b/hw/acpi/ich9.c index 4daa79ec8d..bcbd567cb0 100644 --- a/hw/acpi/ich9.c +++ b/hw/acpi/ich9.c @@ -217,6 +217,26 @@ static const VMStateDescription vmstate_cpuhp_state = =3D { } }; =20 +static bool vmstate_test_use_pcihp(void *opaque) +{ + ICH9LPCPMRegs *s =3D opaque; + + return s->use_acpi_hotplug_bridge; +} + +static const VMStateDescription vmstate_pcihp_state =3D { + .name =3D "ich9_pm/pcihp", + .version_id =3D 1, + .minimum_version_id =3D 1, + .needed =3D vmstate_test_use_pcihp, + .fields =3D (VMStateField[]) { + VMSTATE_PCI_HOTPLUG(acpi_pci_hotplug, + ICH9LPCPMRegs, + NULL, NULL), + VMSTATE_END_OF_LIST() + } +}; + const VMStateDescription vmstate_ich9_pm =3D { .name =3D "ich9_pm", .version_id =3D 1, @@ -238,6 +258,7 @@ const VMStateDescription vmstate_ich9_pm =3D { &vmstate_memhp_state, &vmstate_tco_io_state, &vmstate_cpuhp_state, + &vmstate_pcihp_state, NULL } }; @@ -259,6 +280,7 @@ static void pm_reset(void *opaque) } pm->smi_en_wmask =3D ~0; =20 + acpi_pcihp_reset(&pm->acpi_pci_hotplug, true); acpi_update_sci(&pm->acpi_regs, pm->irq); } =20 @@ -297,6 +319,18 @@ void ich9_pm_init(PCIDevice *lpc_pci, ICH9LPCPMRegs *p= m, pm->enable_tco =3D true; acpi_pm_tco_init(&pm->tco_regs, &pm->io); =20 + if (pm->use_acpi_hotplug_bridge) { + acpi_pcihp_init(OBJECT(lpc_pci), + &pm->acpi_pci_hotplug, + pci_get_bus(lpc_pci), + pci_address_space_io(lpc_pci), + true, + ACPI_PCIHP_ADDR_ICH9); + + qbus_set_hotplug_handler(BUS(pci_get_bus(lpc_pci)), + OBJECT(lpc_pci)); + } + pm->irq =3D sci_irq; qemu_register_reset(pm_reset, pm); pm->powerdown_notifier.notify =3D pm_powerdown_req; @@ -368,6 +402,20 @@ static void ich9_pm_set_enable_tco(Object *obj, bool v= alue, Error **errp) s->pm.enable_tco =3D value; } =20 +static bool ich9_pm_get_acpi_pci_hotplug(Object *obj, Error **errp) +{ + ICH9LPCState *s =3D ICH9_LPC_DEVICE(obj); + + return s->pm.use_acpi_hotplug_bridge; +} + +static void ich9_pm_set_acpi_pci_hotplug(Object *obj, bool value, Error **= errp) +{ + ICH9LPCState *s =3D ICH9_LPC_DEVICE(obj); + + s->pm.use_acpi_hotplug_bridge =3D value; +} + void ich9_pm_add_properties(Object *obj, ICH9LPCPMRegs *pm) { static const uint32_t gpe0_len =3D ICH9_PMIO_GPE0_LEN; @@ -376,6 +424,7 @@ void ich9_pm_add_properties(Object *obj, ICH9LPCPMRegs = *pm) pm->disable_s3 =3D 0; pm->disable_s4 =3D 0; pm->s4_val =3D 2; + pm->use_acpi_hotplug_bridge =3D false; =20 object_property_add_uint32_ptr(obj, ACPI_PM_PROP_PM_IO_BASE, &pm->pm_io_base, OBJ_PROP_FLAG_READ); @@ -399,6 +448,9 @@ void ich9_pm_add_properties(Object *obj, ICH9LPCPMRegs = *pm) object_property_add_bool(obj, ACPI_PM_PROP_TCO_ENABLED, ich9_pm_get_enable_tco, ich9_pm_set_enable_tco); + object_property_add_bool(obj, "acpi-pci-hotplug-with-bridge-support", + ich9_pm_get_acpi_pci_hotplug, + ich9_pm_set_acpi_pci_hotplug); } =20 void ich9_pm_device_pre_plug_cb(HotplugHandler *hotplug_dev, DeviceState *= dev, @@ -406,6 +458,11 @@ void ich9_pm_device_pre_plug_cb(HotplugHandler *hotplu= g_dev, DeviceState *dev, { ICH9LPCState *lpc =3D ICH9_LPC_DEVICE(hotplug_dev); =20 + if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) { + acpi_pcihp_device_pre_plug_cb(hotplug_dev, dev, errp); + return; + } + if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM) && !lpc->pm.acpi_memory_hotplug.is_enabled) { error_setg(errp, @@ -441,6 +498,9 @@ void ich9_pm_device_plug_cb(HotplugHandler *hotplug_dev= , DeviceState *dev, } else { acpi_cpu_plug_cb(hotplug_dev, &lpc->pm.cpuhp_state, dev, errp); } + } else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) { + acpi_pcihp_device_plug_cb(hotplug_dev, &lpc->pm.acpi_pci_hotplug, + dev, errp); } else { error_setg(errp, "acpi: device plug request for not supported devi= ce" " type: %s", object_get_typename(OBJECT(dev))); @@ -473,6 +533,10 @@ void ich9_pm_device_unplug_request_cb(HotplugHandler *= hotplug_dev, =20 acpi_cpu_unplug_request_cb(hotplug_dev, &lpc->pm.cpuhp_state, dev, errp); + } else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) { + acpi_pcihp_device_unplug_request_cb(hotplug_dev, + &lpc->pm.acpi_pci_hotplug, + dev, errp); } else { error_setg(errp, "acpi: device unplug request for not supported de= vice" " type: %s", object_get_typename(OBJECT(dev))); @@ -490,6 +554,9 @@ void ich9_pm_device_unplug_cb(HotplugHandler *hotplug_d= ev, DeviceState *dev, } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU) && !lpc->pm.cpu_hotplug_legacy) { acpi_cpu_unplug_cb(&lpc->pm.cpuhp_state, dev, errp); + } else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) { + acpi_pcihp_device_unplug_cb(hotplug_dev, &lpc->pm.acpi_pci_hotplug, + dev, errp); } else { error_setg(errp, "acpi: device unplug for not supported device" " type: %s", object_get_typename(OBJECT(dev))); diff --git a/hw/acpi/pcihp.c b/hw/acpi/pcihp.c index a55992ed9f..5355618608 100644 --- a/hw/acpi/pcihp.c +++ b/hw/acpi/pcihp.c @@ -30,6 +30,8 @@ #include "hw/pci-host/i440fx.h" #include "hw/pci/pci.h" #include "hw/pci/pci_bridge.h" +#include "hw/pci/pci_host.h" +#include "hw/i386/acpi-build.h" #include "hw/acpi/acpi.h" #include "hw/pci/pci_bus.h" #include "migration/vmstate.h" @@ -103,6 +105,7 @@ static void *acpi_set_bsel(PCIBus *bus, void *opaque) static void acpi_set_pci_info(void) { static bool bsel_is_set; + Object *host =3D acpi_get_i386_pci_host(); PCIBus *bus; unsigned bsel_alloc =3D ACPI_PCIHP_BSEL_DEFAULT; =20 @@ -111,7 +114,7 @@ static void acpi_set_pci_info(void) } bsel_is_set =3D true; =20 - bus =3D find_i440fx(); /* TODO: Q35 support */ + bus =3D PCI_HOST_BRIDGE(host)->bus; if (bus) { /* Scan all PCI buses. Set property to enable acpi based hotplug. = */ pci_for_each_bus_depth_first(bus, acpi_set_bsel, NULL, &bsel_alloc= ); diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index 67753638e4..aa973aa746 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -299,7 +299,7 @@ static void acpi_get_misc_info(AcpiMiscInfo *info) * Because of the PXB hosts we cannot simply query TYPE_PCI_HOST_BRIDGE. * On i386 arch we only have two pci hosts, so we can look only for them. */ -static Object *acpi_get_i386_pci_host(void) +Object *acpi_get_i386_pci_host(void) { PCIHostState *host; =20 --=20 2.30.2