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c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1745836057; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=IWEcEo7tJZDk7sv1PSsr65GTVqALG8w8RfUI/yPTJ4I=; b=K1R/Xlg5KmlcSRHi8hORll06FFtRXmKB1bRau9jUyZF17Trj4XiSPweove9IRLZxUls6jS uSHPo1PW7dxZvThdH7y94pPfpqUJIis4UxWd0bUlHouHCSvKsOmLkQ9YkTx9Do7z9iG8xA mc19GqX48dnGoHrM1AuKQ0d44YlAkBc= X-MC-Unique: O2zQI23uNXW6lwBGDQMjDA-1 X-Mimecast-MFC-AGG-ID: O2zQI23uNXW6lwBGDQMjDA_1745836051 From: Eric Auger To: eric.auger.pro@gmail.com, eric.auger@redhat.com, qemu-devel@nongnu.org, qemu-arm@nongnu.org, peter.maydell@linaro.org, imammedo@redhat.com, anisinha@redhat.com, mst@redhat.com, shannon.zhaosl@gmail.com Cc: pbonzini@redhat.com, Jonathan.Cameron@huawei.com Subject: [RFC 12/24] hw/i386/acpi-build: Introduce build_append_pcihp_resources() helper Date: Mon, 28 Apr 2025 12:25:38 +0200 Message-ID: <20250428102628.378046-13-eric.auger@redhat.com> In-Reply-To: <20250428102628.378046-1-eric.auger@redhat.com> References: <20250428102628.378046-1-eric.auger@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.93 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; 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charset="utf-8" Extract the code that reserves resources for ACPI PCI hotplug into a new helper named build_append_pcihp_resources() and move it to pcihp.c. We will reuse it on ARM. Signed-off-by: Eric Auger --- include/hw/acpi/pcihp.h | 2 ++ hw/acpi/pcihp.c | 20 ++++++++++++++++++++ hw/i386/acpi-build.c | 15 ++------------- 3 files changed, 24 insertions(+), 13 deletions(-) diff --git a/include/hw/acpi/pcihp.h b/include/hw/acpi/pcihp.h index 2da0bc45c9..819e815acd 100644 --- a/include/hw/acpi/pcihp.h +++ b/include/hw/acpi/pcihp.h @@ -74,6 +74,8 @@ void acpi_pcihp_device_unplug_request_cb(HotplugHandler *= hotplug_dev, Error **errp); =20 void build_acpi_pci_hotplug(Aml *table, uint64_t pcihp_addr); +void build_append_pcihp_resources(Aml *table, + uint64_t io_addr, uint64_t io_len); =20 /* Called on reset */ void acpi_pcihp_reset(AcpiPciHpState *s); diff --git a/hw/acpi/pcihp.c b/hw/acpi/pcihp.c index 35d8c0bfd2..6f9cd45b5f 100644 --- a/hw/acpi/pcihp.c +++ b/hw/acpi/pcihp.c @@ -685,6 +685,26 @@ void build_acpi_pci_hotplug(Aml *table, uint64_t pcihp= _addr) aml_append(table, scope); } =20 +/* Reserve PCIHP resources */ +void build_append_pcihp_resources(Aml *scope /* \\_SB.PCI0 */, + uint64_t io_addr, uint64_t io_len) +{ + Aml *dev, *crs; + + dev =3D aml_device("PHPR"); + aml_append(dev, aml_name_decl("_HID", aml_string("PNP0A06"))); + aml_append(dev, + aml_name_decl("_UID", aml_string("PCI Hotplug resources"))); + /* device present, functioning, decoding, not shown in UI */ + aml_append(dev, aml_name_decl("_STA", aml_int(0xB))); + crs =3D aml_resource_template(); + aml_append(crs, + aml_io(AML_DECODE16, io_addr, io_addr, 1, io_len) + ); + aml_append(dev, aml_name_decl("_CRS", crs)); + aml_append(scope, dev); +} + const VMStateDescription vmstate_acpi_pcihp_pci_status =3D { .name =3D "acpi_pcihp_pci_status", .version_id =3D 1, diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index a3065a94d1..4934d939f4 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -1458,19 +1458,8 @@ build_dsdt(GArray *table_data, BIOSLinker *linker, =20 /* reserve PCIHP resources */ if (pm->pcihp_io_len && (pm->pcihp_bridge_en || pm->pcihp_root_en)) { - dev =3D aml_device("PHPR"); - aml_append(dev, aml_name_decl("_HID", aml_string("PNP0A06"))); - aml_append(dev, - aml_name_decl("_UID", aml_string("PCI Hotplug resources"))); - /* device present, functioning, decoding, not shown in UI */ - aml_append(dev, aml_name_decl("_STA", aml_int(0xB))); - crs =3D aml_resource_template(); - aml_append(crs, - aml_io(AML_DECODE16, pm->pcihp_io_base, pm->pcihp_io_base, 1, - pm->pcihp_io_len) - ); - aml_append(dev, aml_name_decl("_CRS", crs)); - aml_append(scope, dev); + build_append_pcihp_resources(scope, + pm->pcihp_io_base, pm->pcihp_io_len); } aml_append(dsdt, scope); =20 --=20 2.49.0