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[Qemu-devel] [PATCH RFC V2 03/17] hw/apci: add _PRT method for extra roo
From: |
Marcel Apfelbaum |
Subject: |
[Qemu-devel] [PATCH RFC V2 03/17] hw/apci: add _PRT method for extra root busses |
Date: |
Mon, 16 Feb 2015 11:54:03 +0200 |
Signed-off-by: Marcel Apfelbaum <address@hidden>
---
hw/i386/acpi-build.c | 77 ++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 77 insertions(+)
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index fedcb2e..ee1a50a 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -643,6 +643,82 @@ static void build_append_pci_bus_devices(AcpiAml
*parent_scope, PCIBus *bus,
aml_append(parent_scope, method);
}
+static AcpiAml build_prt(void)
+{
+ AcpiAml method, pkg, if_ctx, while_ctx;
+
+ method = acpi_method("_PRT", 0);
+
+ aml_append(&method, acpi_store(acpi_package(128), acpi_local0()));
+ aml_append(&method, acpi_store(acpi_int(0), acpi_local1()));
+ while_ctx = acpi_while(acpi_lless(acpi_local1(), acpi_int(128)));
+ {
+ aml_append(&while_ctx,
+ acpi_store(acpi_shiftright(acpi_local1(), 2),
+ acpi_local2()));
+ aml_append(&while_ctx, acpi_store(
+ acpi_and(acpi_add(acpi_local1(), acpi_local2()),
acpi_int(3)), acpi_local3()));
+
+ if_ctx = acpi_if(acpi_equal(acpi_local3(), acpi_int(0)));
+ {
+ pkg = acpi_package(4);
+ aml_append(&pkg, acpi_int(0));
+ aml_append(&pkg, acpi_int(0));
+ aml_append(&pkg, acpi_name("LNKD"));
+ aml_append(&pkg, acpi_int(0));
+ aml_append(&if_ctx, acpi_store(pkg, acpi_local4()));
+ }
+ aml_append(&while_ctx, if_ctx);
+
+ if_ctx = acpi_if(acpi_equal(acpi_local3(), acpi_int(1)));
+ {
+ pkg = acpi_package(4);
+ aml_append(&pkg, acpi_int(0));
+ aml_append(&pkg, acpi_int(0));
+ aml_append(&pkg, acpi_name("LNKA"));
+ aml_append(&pkg, acpi_int(0));
+ aml_append(&if_ctx, acpi_store(pkg, acpi_local4()));
+ }
+ aml_append(&while_ctx, if_ctx);
+
+ if_ctx = acpi_if(acpi_equal(acpi_local3(), acpi_int(2)));
+ {
+ pkg = acpi_package(4);
+ aml_append(&pkg, acpi_int(0));
+ aml_append(&pkg, acpi_int(0));
+ aml_append(&pkg, acpi_name("LNKB"));
+ aml_append(&pkg, acpi_int(0));
+ aml_append(&if_ctx, acpi_store(pkg, acpi_local4()));
+ }
+ aml_append(&while_ctx, if_ctx);
+
+ if_ctx = acpi_if(acpi_equal(acpi_local3(), acpi_int(3)));
+ {
+ pkg = acpi_package(4);
+ aml_append(&pkg, acpi_int(0));
+ aml_append(&pkg, acpi_int(0));
+ aml_append(&pkg, acpi_name("LNKC"));
+ aml_append(&pkg, acpi_int(0));
+ aml_append(&if_ctx, acpi_store(pkg, acpi_local4()));
+ }
+ aml_append(&while_ctx, if_ctx);
+
+ aml_append(&while_ctx, acpi_store(
+ acpi_or(acpi_shiftleft(acpi_local2(), 16),
acpi_int(0xFFFF)),
+ acpi_index(acpi_local4(), acpi_int(0))));
+ aml_append(&while_ctx, acpi_store(
+ acpi_and(acpi_local1(), acpi_int(3)),
+ acpi_index(acpi_local4(), acpi_int(1))));
+ aml_append(&while_ctx, acpi_store(
+ acpi_local4(), acpi_index(acpi_local0(), acpi_local1())));
+ aml_append(&while_ctx, acpi_increment(acpi_local1()));
+ }
+ aml_append(&method, while_ctx);
+ aml_append(&method, acpi_return(acpi_local0()));
+
+ return method;
+ }
+
static void
build_ssdt(AcpiAml *table_aml, GArray *linker,
AcpiCpuInfo *cpu, AcpiPmInfo *pm, AcpiMiscInfo *misc,
@@ -687,6 +763,7 @@ build_ssdt(AcpiAml *table_aml, GArray *linker,
aml_append(&dev, acpi_name_decl("_HID", acpi_string("PNP0A03")));
aml_append(&dev,
acpi_name_decl("_BBN", acpi_int((uint8_t)bus_info->bus)));
+ aml_append(&dev, build_prt());
aml_append(&scope, dev);
aml_append(&ssdt, scope);
}
--
2.1.0
- [Qemu-devel] [PATCH RFC V2 12/17] hw/pci: introduce PCI Expander Bridge (PXB), (continued)
- [Qemu-devel] [PATCH RFC V2 12/17] hw/pci: introduce PCI Expander Bridge (PXB), Marcel Apfelbaum, 2015/02/16
- [Qemu-devel] [PATCH RFC V2 07/17] hw/pci: made pci_bus_is_root a PCIBusClass method, Marcel Apfelbaum, 2015/02/16
- [Qemu-devel] [PATCH RFC V2 13/17] hw/pci: inform bios if the system has more than one pci bridge, Marcel Apfelbaum, 2015/02/16
- [Qemu-devel] [PATCH RFC V2 09/17] hw/pci: introduce TYPE_PCI_MAIN_HOST_BRIDGE interface, Marcel Apfelbaum, 2015/02/16
- [Qemu-devel] [PATCH RFC V2 05/17] hw/acpi: remove from root bus 0 the crs resources used by other busses., Marcel Apfelbaum, 2015/02/16
- [Qemu-devel] [PATCH RFC V2 15/17] hw/pxb: add map_irq func, Marcel Apfelbaum, 2015/02/16
- [Qemu-devel] [PATCH RFC V2 16/17] hw/pci_bus: add support for NUMA nodes, Marcel Apfelbaum, 2015/02/16
- [Qemu-devel] [PATCH RFC V2 10/17] hw/pci: removed 'rootbus nr is 0' assumption from qmp_pci_query, Marcel Apfelbaum, 2015/02/16
- [Qemu-devel] [PATCH RFC V2 03/17] hw/apci: add _PRT method for extra root busses,
Marcel Apfelbaum <=
- [Qemu-devel] [PATCH RFC V2 01/17] acpi: added needed acpi constructs, Marcel Apfelbaum, 2015/02/16
- [Qemu-devel] [PATCH RFC V2 04/17] hw/acpi: add _CRS method for extra root busses, Marcel Apfelbaum, 2015/02/16
- [Qemu-devel] [PATCH RFC V2 17/17] hw/pxb: add numa_node parameter, Marcel Apfelbaum, 2015/02/16
- [Qemu-devel] [PATCH RFC V2 02/17] hw/acpi: add support for multiple root busses, Marcel Apfelbaum, 2015/02/16
- [Qemu-devel] [PATCH RFC V2 14/17] hw/pci: piix - suport multiple host bridges, Marcel Apfelbaum, 2015/02/16