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 0B142C7115B for ; Fri, 20 Jun 2025 09:06:19 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1uSXgu-0000O8-AJ; Fri, 20 Jun 2025 05:05:45 -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 1uSXgl-0000LJ-Cc; Fri, 20 Jun 2025 05:05:35 -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 1uSXgh-0004lw-SK; Fri, 20 Jun 2025 05:05:35 -0400 Received: from mail.maildlp.com (unknown [172.18.186.216]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4bNs2J4pG7z6L59y; Fri, 20 Jun 2025 17:03:04 +0800 (CST) Received: from frapeml500008.china.huawei.com (unknown [7.182.85.71]) by mail.maildlp.com (Postfix) with ESMTPS id BD3DA1402FE; Fri, 20 Jun 2025 17:05:22 +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 11:05:22 +0200 Date: Fri, 20 Jun 2025 10:05:20 +0100 To: Eric Auger CC: , , , , , , , , , , , Subject: Re: [PATCH v3 15/29] hw/i386/acpi-build: Use AcpiPciHpState::root in acpi_set_pci_info Message-ID: <20250620100520.00006e4b@huawei.com> In-Reply-To: <20250616094903.885753-16-eric.auger@redhat.com> References: <20250616094903.885753-1-eric.auger@redhat.com> <20250616094903.885753-16-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 11:46:44 +0200 Eric Auger wrote: > pcihp acpi_set_pci_info() generic code currently uses > acpi_get_i386_pci_host() to retrieve the pci host bridge. > > To make it work also on ARM we get rid of that call and > directly use AcpiPciHpState::root. > > Signed-off-by: Eric Auger > Suggested-by: Igor Mammedov Nice Reviewed-by: Jonathan Cameron > > --- > > v2 -> v3: > - Use AcpiPciHpState::root > > v1 -> v2 > - described the fact we changed the implementation of > acpi_get_pci_host() in the commit msg. > --- > hw/acpi/pcihp.c | 11 ++++------- > 1 file changed, 4 insertions(+), 7 deletions(-) > > diff --git a/hw/acpi/pcihp.c b/hw/acpi/pcihp.c > index 236e175b69..e79a24b821 100644 > --- a/hw/acpi/pcihp.c > +++ b/hw/acpi/pcihp.c > @@ -99,10 +99,10 @@ static void *acpi_set_bsel(PCIBus *bus, void *opaque) > return info; > } > > -static void acpi_set_pci_info(bool has_bridge_hotplug) > +static void acpi_set_pci_info(AcpiPciHpState *s) > { > static bool bsel_is_set; > - Object *host = acpi_get_i386_pci_host(); > + bool has_bridge_hotplug = s->use_acpi_hotplug_bridge; > PCIBus *bus; > BSELInfo info = { .bsel_alloc = ACPI_PCIHP_BSEL_DEFAULT, > .has_bridge_hotplug = has_bridge_hotplug }; > @@ -112,11 +112,8 @@ static void acpi_set_pci_info(bool has_bridge_hotplug) > } > bsel_is_set = true; > > - if (!host) { > - return; > - } > > - bus = PCI_HOST_BRIDGE(host)->bus; > + bus = s->root; > if (bus) { > /* Scan all PCI buses. Set property to enable acpi based hotplug. */ > pci_for_each_bus_depth_first(bus, acpi_set_bsel, NULL, &info); > @@ -266,7 +263,7 @@ static void acpi_pcihp_update(AcpiPciHpState *s) > > void acpi_pcihp_reset(AcpiPciHpState *s) > { > - acpi_set_pci_info(s->use_acpi_hotplug_bridge); > + acpi_set_pci_info(s); > acpi_pcihp_update(s); > } >