Signed-off-by: Marcel Apfelbaum marcel@redhat.com --- hw/i386/acpi-build.c | 78 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 78 insertions(+)
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index e5709e8..f0401d2 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -664,6 +664,83 @@ static void build_append_pci_bus_devices(Aml *parent_scope, PCIBus *bus, aml_append(parent_scope, method); }
+static Aml *build_prt(void) +{ + Aml *method, *pkg, *if_ctx, *while_ctx; + + method = aml_method("_PRT", 0); + + aml_append(method, aml_store(aml_package(128), aml_local(0))); + aml_append(method, aml_store(aml_int(0), aml_local(1))); + while_ctx = aml_while(aml_lless(aml_local(1), aml_int(128))); + { + aml_append(while_ctx, + aml_store(aml_shiftright(aml_local(1), aml_int(2)), aml_local(2))); + aml_append(while_ctx, + aml_store(aml_and(aml_add(aml_local(1), aml_local(2)), aml_int(3)), + aml_local(3))); + + if_ctx = aml_if(aml_equal(aml_local(3), aml_int(0))); + { + pkg = aml_package(4); + aml_append(pkg, aml_int(0)); + aml_append(pkg, aml_int(0)); + aml_append(pkg, aml_name("LNKD")); + aml_append(pkg, aml_int(0)); + aml_append(if_ctx, aml_store(pkg, aml_local(4))); + } + aml_append(while_ctx, if_ctx); + + if_ctx = aml_if(aml_equal(aml_local(3), aml_int(1))); + { + pkg = aml_package(4); + aml_append(pkg, aml_int(0)); + aml_append(pkg, aml_int(0)); + aml_append(pkg, aml_name("LNKA")); + aml_append(pkg, aml_int(0)); + aml_append(if_ctx, aml_store(pkg, aml_local(4))); + } + aml_append(while_ctx, if_ctx); + + if_ctx = aml_if(aml_equal(aml_local(3), aml_int(2))); + { + pkg = aml_package(4); + aml_append(pkg, aml_int(0)); + aml_append(pkg, aml_int(0)); + aml_append(pkg, aml_name("LNKB")); + aml_append(pkg, aml_int(0)); + aml_append(if_ctx, aml_store(pkg, aml_local(4))); + } + aml_append(while_ctx, if_ctx); + + if_ctx = aml_if(aml_equal(aml_local(3), aml_int(3))); + { + pkg = aml_package(4); + aml_append(pkg, aml_int(0)); + aml_append(pkg, aml_int(0)); + aml_append(pkg, aml_name("LNKC")); + aml_append(pkg, aml_int(0)); + aml_append(if_ctx, aml_store(pkg, aml_local(4))); + } + aml_append(while_ctx, if_ctx); + + aml_append(while_ctx, + aml_store(aml_or(aml_shiftleft(aml_local(2), aml_int(16)), + aml_int(0xFFFF)), + aml_index(aml_local(4), aml_int(0)))); + aml_append(while_ctx, + aml_store(aml_and(aml_local(1), aml_int(3)), + aml_index(aml_local(4), aml_int(1)))); + aml_append(while_ctx, + aml_store(aml_local(4), aml_index(aml_local(0), aml_local(1)))); + aml_append(while_ctx, aml_increment(aml_local(1))); + } + aml_append(method, while_ctx); + aml_append(method, aml_return(aml_local(0))); + + return method; +} + static void build_ssdt(GArray *table_data, GArray *linker, AcpiCpuInfo *cpu, AcpiPmInfo *pm, AcpiMiscInfo *misc, @@ -708,6 +785,7 @@ build_ssdt(GArray *table_data, GArray *linker, aml_append(dev, aml_name_decl("_HID", aml_string("PNP0A03"))); aml_append(dev, aml_name_decl("_BBN", aml_int((uint8_t)bus_info->bus))); + aml_append(dev, build_prt()); aml_append(scope, dev); aml_append(ssdt, scope); }