1 files changed, 51 insertions, 0 deletions
diff --git a/hw/i386/acpi-dsdt-hpet.dsl b/hw/i386/acpi-dsdt-hpet.dsl
new file mode 100644
index 0000000000..dfde174317
--- /dev/null
+++ b/hw/i386/acpi-dsdt-hpet.dsl
@@ -0,0 +1,51 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+/****************************************************************
+ * HPET
+ ****************************************************************/
+
+Scope(\_SB) {
+    Device(HPET) {
+        Name(_HID, EISAID("PNP0103"))
+        Name(_UID, 0)
+        OperationRegion(HPTM, SystemMemory, 0xFED00000, 0x400)
+        Field(HPTM, DWordAcc, Lock, Preserve) {
+            VEND, 32,
+            PRD, 32,
+        }
+        Method(_STA, 0, NotSerialized) {
+            Store(VEND, Local0)
+            Store(PRD, Local1)
+            ShiftRight(Local0, 16, Local0)
+            If (LOr(LEqual(Local0, 0), LEqual(Local0, 0xffff))) {
+                Return (0x0)
+            }
+            If (LOr(LEqual(Local1, 0), LGreater(Local1, 100000000))) {
+                Return (0x0)
+            }
+            Return (0x0F)
+        }
+        Name(_CRS, ResourceTemplate() {
+#if 0       /* This makes WinXP BSOD for not yet figured reasons. */
+            IRQNoFlags() {2, 8}
+#endif
+            Memory32Fixed(ReadOnly,
+                0xFED00000,         // Address Base
+                0x00000400,         // Address Length
+                )
+        })
+    }
+}