Signed-off-by: Marcel Apfelbaum <mar...@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;
+}
+