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bh=bTs2PQg3n31w4kZfZYIoyRmG7Onizqs22tN1ExcN0QY=; b=dyISDYeXud6zBNgmjk7Sxv616LNmhhCpxiWs+9C1r/7zcodjuA6sS8ArzI5VxvRu1xuCVK CvRdDnGjxwOpKF/Nlk+XccfvAig3dFY41rRBTS1Qngk7R72Lw9RMdESrm+tSRaWu7x0hGV weQGF+UNkFCzyuQODeFuIU8vHvdKbiU= X-MC-Unique: kDiYoGJfNuqfqXY1awePRQ-1 From: Julia Suvorova To: qemu-devel@nongnu.org Subject: [RFC PATCH 5/5] hw/acpi/ich9: Enable ACPI PCI hot-plug Date: Thu, 9 Jul 2020 00:46:15 +0200 Message-Id: <20200708224615.114077-6-jusual@redhat.com> In-Reply-To: <20200708224615.114077-1-jusual@redhat.com> References: <20200708224615.114077-1-jusual@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 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=205.139.110.120; envelope-from=jusual@redhat.com; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/07/07 17:25:11 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -28 X-Spam_score: -2.9 X-Spam_bar: -- X-Spam_report: (-2.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_FAKE_HELO_DOTCOM=1.189, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no 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 , "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 and use ACPI PCI hot-plug by default. Signed-off-by: Julia Suvorova --- include/hw/acpi/ich9.h | 3 +++ hw/acpi/ich9.c | 45 ++++++++++++++++++++++++++++++++++++++++++ hw/acpi/pcihp.c | 3 ++- hw/i386/pc.c | 4 +++- 4 files changed, 53 insertions(+), 2 deletions(-) diff --git a/include/hw/acpi/ich9.h b/include/hw/acpi/ich9.h index 28a53181cb..d345da6b74 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" @@ -53,6 +54,8 @@ typedef struct ICH9LPCPMRegs { AcpiCpuHotplug gpe_cpu; CPUHotplugState cpuhp_state; =20 + bool use_acpi_pci_hotplug; + 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 0fdd736da4..e0291373f2 100644 --- a/hw/acpi/ich9.c +++ b/hw/acpi/ich9.c @@ -265,6 +265,7 @@ static void pm_reset(void *opaque) } pm->smi_en_wmask =3D ~0; =20 + acpi_pcihp_reset(&pm->acpi_pci_hotplug); acpi_update_sci(&pm->acpi_regs, pm->irq); } =20 @@ -303,6 +304,17 @@ 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_pci_hotplug) { + acpi_pcihp_init(OBJECT(lpc_pci), + &pm->acpi_pci_hotplug, + pci_get_bus(lpc_pci), + pci_address_space_io(lpc_pci), + true); + qbus_set_hotplug_handler(BUS(pci_get_bus(lpc_pci)), + OBJECT(lpc_pci), + &error_abort); + } + pm->irq =3D sci_irq; qemu_register_reset(pm_reset, pm); pm->powerdown_notifier.notify =3D pm_powerdown_req; @@ -374,6 +386,20 @@ 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_pci_hotplug; +} + +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_pci_hotplug =3D value; +} void ich9_pm_add_properties(Object *obj, ICH9LPCPMRegs *pm) { static const uint32_t gpe0_len =3D ICH9_PMIO_GPE0_LEN; @@ -382,6 +408,7 @@ 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_pci_hotplug =3D true; =20 object_property_add_uint32_ptr(obj, ACPI_PM_PROP_PM_IO_BASE, &pm->pm_io_base, OBJ_PROP_FLAG_READ); @@ -405,6 +432,9 @@ 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, @@ -412,6 +442,11 @@ 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, @@ -437,6 +472,9 @@ 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))); @@ -457,6 +495,10 @@ void ich9_pm_device_unplug_request_cb(HotplugHandler *= hotplug_dev, !lpc->pm.cpu_hotplug_legacy) { 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))); @@ -474,6 +516,9 @@ 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 3d4ee3af72..d905d1b8f2 100644 --- a/hw/acpi/pcihp.c +++ b/hw/acpi/pcihp.c @@ -110,7 +110,8 @@ static void acpi_set_pci_info(void) } bsel_is_set =3D true; =20 - bus =3D find_i440fx(); /* TODO: Q35 support */ + bus =3D find_host(); + 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/pc.c b/hw/i386/pc.c index 143ac1c354..21c6eb779e 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -96,7 +96,9 @@ #include "fw_cfg.h" #include "trace.h" =20 -GlobalProperty pc_compat_5_0[] =3D {}; +GlobalProperty pc_compat_5_0[] =3D { + { "ICH9-LPC", "acpi-pci-hotplug-with-bridge-support", "off" }, +}; const size_t pc_compat_5_0_len =3D G_N_ELEMENTS(pc_compat_5_0); =20 GlobalProperty pc_compat_4_2[] =3D { --=20 2.25.4