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c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1745836044; 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=4AqKs5m/4n+kqsHPYCruTbphKvF/1V3WYtHDMozGeRE=; b=RdydleIQTQ4LhI42UalUqksnisQz4ei4SfKE0JDbfQIznz+df7iMZHl8nZHZUfEsXDgxLW uwqJZtZ5wbrAE2NL3LeNONcE0wog2vvQsKV34iH7qvGRYS2nkWw6Y2xppYkCPPj4iFUKBj 2zZtRikAaNRiMm7GIWFjqNuhhRtkiNo= X-MC-Unique: EoaRFVJBPQqJml87skGSSA-1 X-Mimecast-MFC-AGG-ID: EoaRFVJBPQqJml87skGSSA_1745836039 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 09/24] hw/pci-host/gpex-acpi: Propagate hotplug type info from virt machine downto gpex Date: Mon, 28 Apr 2025 12:25:35 +0200 Message-ID: <20250428102628.378046-10-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" Propagate the type of pci hotplug mode downto the gpex acpi code. In case machine 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 Reviewed-by: Gustavo Romero --- include/hw/pci-host/gpex.h | 1 + hw/arm/virt-acpi-build.c | 1 + hw/pci-host/gpex-acpi.c | 3 ++- 3 files changed, 4 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; }; =20 typedef struct GPEXIrq GPEXIrq; diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c index 3ac8f8e178..46c5a43d27 100644 --- a/hw/arm/virt-acpi-build.c +++ b/hw/arm/virt-acpi-build.c @@ -129,6 +129,7 @@ static void acpi_dsdt_add_pci(Aml *scope, const MemMapE= ntry *memmap, .ecam =3D memmap[ecam_id], .irq =3D irq, .bus =3D vms->bus, + .pci_native_hotplug =3D !vms->acpi_pcihp, }; =20 if (vms->highmem_mmio) { diff --git a/hw/pci-host/gpex-acpi.c b/hw/pci-host/gpex-acpi.c index 9d9f5ed7c6..9a521145bd 100644 --- a/hw/pci-host/gpex-acpi.c +++ b/hw/pci-host/gpex-acpi.c @@ -204,6 +204,7 @@ 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); } =20 @@ -279,7 +280,7 @@ void acpi_dsdt_add_gpex(Aml *scope, struct GPEXConfig *= cfg) } aml_append(dev, aml_name_decl("_CRS", rbuf)); =20 - acpi_dsdt_add_host_bridge_methods(dev, true); + acpi_dsdt_add_host_bridge_methods(dev, cfg->pci_native_hotplug); =20 Aml *dev_res0 =3D aml_device("%s", "RES0"); aml_append(dev_res0, aml_name_decl("_HID", aml_string("PNP0C02"))); --=20 2.49.0