1 files changed, 48 insertions, 0 deletions
diff --git a/qemu/roms/seabios/src/fw/ssdt-proc.dsl b/qemu/roms/seabios/src/fw/ssdt-proc.dsl
new file mode 100644
index 000000000..407d61ead
--- /dev/null
+++ b/qemu/roms/seabios/src/fw/ssdt-proc.dsl
@@ -0,0 +1,48 @@
+/* This file is the basis for the ssdt table generated in src/acpi.c.
+ * It defines the contents of the per-cpu Processor() object.  At
+ * runtime, a dynamically generated SSDT will contain one copy of this
+ * AML snippet for every possible cpu in the system.  The objects will
+ * be placed in the \_SB_ namespace.
+ *
+ * In addition to the aml code generated from this file, the
+ * src/acpi.c file creates a NTFY method with an entry for each cpu:
+ *     Method(NTFY, 2) {
+ *         If (LEqual(Arg0, 0x00)) { Notify(CP00, Arg1) }
+ *         If (LEqual(Arg0, 0x01)) { Notify(CP01, Arg1) }
+ *         ...
+ *     }
+ * and a CPON array with the list of active and inactive cpus:
+ *     Name(CPON, Package() { One, One, ..., Zero, Zero, ... })
+ */
+
+ACPI_EXTRACT_ALL_CODE ssdp_proc_aml
+
+DefinitionBlock ("ssdt-proc.aml", "SSDT", 0x01, "BXPC", "BXSSDT", 0x1)
+{
+    ACPI_EXTRACT_PROCESSOR_START ssdt_proc_start
+    ACPI_EXTRACT_PROCESSOR_END ssdt_proc_end
+    ACPI_EXTRACT_PROCESSOR_STRING ssdt_proc_name
+    Processor(CPAA, 0xAA, 0x0000b010, 0x06) {
+        ACPI_EXTRACT_NAME_BYTE_CONST ssdt_proc_id
+        Name(ID, 0xAA)
+/*
+ * The src/acpi.c code requires the above ACP_EXTRACT tags so that it can update
+ * CPAA and 0xAA with the appropriate CPU id (see
+ * SD_OFFSET_CPUHEX/CPUID1/CPUID2).  Don't change the above without
+ * also updating the C code.
+ */
+        Name(_HID, "ACPI0007")
+        External(CPMA, MethodObj)
+        External(CPST, MethodObj)
+        External(CPEJ, MethodObj)
+        Method(_MAT, 0) {
+            Return (CPMA(ID))
+        }
+        Method(_STA, 0) {
+            Return (CPST(ID))
+        }
+        Method(_EJ0, 1, NotSerialized) {
+            CPEJ(ID, Arg0)
+        }
+    }
+}