From mboxrd@z Thu Jan 1 00:00:00 1970 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 1F5C1C71155 for ; Fri, 20 Jun 2025 08:52:48 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1uSXTm-0003Y3-9I; Fri, 20 Jun 2025 04:52:10 -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 1uSXTj-0003X8-V4; Fri, 20 Jun 2025 04:52:07 -0400 Received: from [185.176.79.56] (helo=frasgout.his.huawei.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1uSXTi-0002uL-91; Fri, 20 Jun 2025 04:52:07 -0400 Received: from mail.maildlp.com (unknown [172.18.186.231]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4bNrh41ctrz6L66H; Fri, 20 Jun 2025 16:47:16 +0800 (CST) Received: from frapeml500008.china.huawei.com (unknown [7.182.85.71]) by mail.maildlp.com (Postfix) with ESMTPS id 3344E140446; Fri, 20 Jun 2025 16:52:02 +0800 (CST) Received: from localhost (10.203.177.66) by frapeml500008.china.huawei.com (7.182.85.71) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Fri, 20 Jun 2025 10:52:01 +0200 Date: Fri, 20 Jun 2025 09:52:00 +0100 To: Eric Auger CC: , , , , , , , , , , , Subject: Re: [PATCH v3 07/29] hw/pci-host/gpex-acpi: retrieve and use GED acpi_pcihp setting Message-ID: <20250620095200.00002e72@huawei.com> In-Reply-To: <20250616094903.885753-8-eric.auger@redhat.com> References: <20250616094903.885753-1-eric.auger@redhat.com> <20250616094903.885753-8-eric.auger@redhat.com> X-Mailer: Claws Mail 4.3.0 (GTK 3.24.42; x86_64-w64-mingw32) MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.203.177.66] X-ClientProxiedBy: lhrpeml100001.china.huawei.com (7.191.160.183) To frapeml500008.china.huawei.com (7.182.85.71) X-Host-Lookup-Failed: Reverse DNS lookup failed for 185.176.79.56 (deferred) Received-SPF: pass client-ip=185.176.79.56; envelope-from=jonathan.cameron@huawei.com; helo=frasgout.his.huawei.com X-Spam_score_int: -33 X-Spam_score: -3.4 X-Spam_bar: --- X-Spam_report: (-3.4 / 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, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, RDNS_NONE=0.793, 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: Jonathan Cameron From: Jonathan Cameron via Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On Mon, 16 Jun 2025 11:46:36 +0200 Eric Auger wrote: > retrieve the acpi_pcihp option value from the ged. In > case acpi_pcihp is unset we configure pci native hotplug on > pci0. For expander bridges we keep legacy pci native hotplug, > as done on x86 q35. > > Signed-off-by: Eric Auger One minor thing inline Reviewed-by: Jonathan Cameron > > --- > > v2 -> v3: > - don'use the virt arm machine option anymore. > --- > include/hw/pci-host/gpex.h | 1 + > hw/arm/virt-acpi-build.c | 5 +++++ > hw/pci-host/gpex-acpi.c | 3 ++- > 3 files changed, 8 insertions(+), 1 deletion(-) > > diff --git a/include/hw/pci-host/gpex.h b/include/hw/pci-host/gpex.h > index 84471533af..feaf827474 100644 > --- a/include/hw/pci-host/gpex.h > +++ b/include/hw/pci-host/gpex.h > @@ -45,6 +45,7 @@ struct GPEXConfig { > MemMapEntry pio; > int irq; > PCIBus *bus; > + bool pci_native_hotplug; > }; > > typedef struct GPEXIrq GPEXIrq; > diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c > index 7e8e0f0298..d7547c8d3b 100644 > --- a/hw/arm/virt-acpi-build.c > +++ b/hw/arm/virt-acpi-build.c > @@ -123,12 +123,17 @@ static void acpi_dsdt_add_pci(Aml *scope, const MemMapEntry *memmap, > uint32_t irq, VirtMachineState *vms) > { > int ecam_id = VIRT_ECAM_ID(vms->highmem_ecam); > + AcpiGedState *acpi_ged_state = ACPI_GED(vms->acpi_dev); > + AcpiPciHpState *pcihp_state = &acpi_ged_state->pcihp_state; > + Trivial, but why 2 blank lines? One seems enough here. > + > struct GPEXConfig cfg = { > .mmio32 = memmap[VIRT_PCIE_MMIO], > .pio = memmap[VIRT_PCIE_PIO], > .ecam = memmap[ecam_id], > .irq = irq, > .bus = vms->bus, > + .pci_native_hotplug = !pcihp_state->use_acpi_hotplug_bridge, > }; > > if (vms->highmem_mmio) { > diff --git a/hw/pci-host/gpex-acpi.c b/hw/pci-host/gpex-acpi.c > index 80fc2bf032..44737a8d81 100644 > --- a/hw/pci-host/gpex-acpi.c > +++ b/hw/pci-host/gpex-acpi.c > @@ -203,6 +203,7 @@ void acpi_dsdt_add_gpex(Aml *scope, struct GPEXConfig *cfg) > if (is_cxl) { > build_cxl_osc_method(dev); > } else { > + /* pxb bridges do not have ACPI PCI Hot-plug enabled */ > acpi_dsdt_add_host_bridge_methods(dev, true); > } > > @@ -278,7 +279,7 @@ void acpi_dsdt_add_gpex(Aml *scope, struct GPEXConfig *cfg) > } > aml_append(dev, aml_name_decl("_CRS", rbuf)); > > - acpi_dsdt_add_host_bridge_methods(dev, true); > + acpi_dsdt_add_host_bridge_methods(dev, cfg->pci_native_hotplug); > > Aml *dev_res0 = aml_device("%s", "RES0"); > aml_append(dev_res0, aml_name_decl("_HID", aml_string("PNP0C02")));