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| author | Eric Auger <eric.auger@redhat.com> | 2025-07-14 10:04:55 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2025-07-15 02:56:40 -0400 |
| commit | c5dee204b0ae45c92b1a9640055ec068c6748b3c (patch) | |
| tree | f239db82fad820fdb8d50aa4bd3dc32ea66cc5ad /hw/acpi/pcihp.c | |
| parent | f47d6e6a8f69c8890207d3f771e079700418f7a6 (diff) | |
| download | focaccia-qemu-c5dee204b0ae45c92b1a9640055ec068c6748b3c.tar.gz focaccia-qemu-c5dee204b0ae45c92b1a9640055ec068c6748b3c.zip | |
hw/i386/acpi-build: Introduce build_append_pcihp_resources() helper
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 <eric.auger@redhat.com> Reviewed-by: Gustavo Romero <gustavo.romero@linaro.org> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com> Message-Id: <20250714080639.2525563-12-eric.auger@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/acpi/pcihp.c')
| -rw-r--r-- | hw/acpi/pcihp.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/hw/acpi/pcihp.c b/hw/acpi/pcihp.c index cbe7e01385..5ca36c8619 100644 --- a/hw/acpi/pcihp.c +++ b/hw/acpi/pcihp.c @@ -685,6 +685,24 @@ void build_acpi_pci_hotplug(Aml *table, uint64_t pcihp_addr) aml_append(table, scope); } +/* Reserve PCIHP resources */ +void build_append_pcihp_resources(Aml *scope /* \\_SB.PCI0 */, + uint64_t io_addr, uint64_t io_len) +{ + Aml *dev, *crs; + + dev = 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 = 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 = { .name = "acpi_pcihp_pci_status", .version_id = 1, |