From c5dee204b0ae45c92b1a9640055ec068c6748b3c Mon Sep 17 00:00:00 2001 From: Eric Auger Date: Mon, 14 Jul 2025 10:04:55 +0200 Subject: 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 Reviewed-by: Gustavo Romero Reviewed-by: Igor Mammedov Reviewed-by: Jonathan Cameron Message-Id: <20250714080639.2525563-12-eric.auger@redhat.com> Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/acpi/pcihp.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'hw/acpi/pcihp.c') 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, -- cgit 1.4.1