acpi: define structs for holding the AML VM bytecode

src/gopheros/device/acpi/aml/vm/vm.go

@@ -0,0 +1,25 @@
+package vm
+
+import "gopheros/device/acpi/aml/entity"
+
+// Context contains the result of transforming the methods defined by a
+// hierarchy of AML entities into the bytecode format that can be executed by
+// the VM implementation in this package.
+type Context struct {
+	// The root namespace for the parsed AML entities.
+	rootNS entity.Container
+
+	constants   []*entity.Const
+	buffers     []*entity.Buffer
+	packages    []*entity.Package
+	methodCalls []*methodCall
+
+	bytecode []uint8
+}
+
+// methodCall contains information about the bytecode address where a particular
+// AML method begins as well as a link to the actual method entity.
+type methodCall struct {
+	entrypoint uint32
+	method     *entity.Method
+}