Initialize ACPI Timer

xtoskrnl/hl/globals.c

@@ -15,6 +15,9 @@ LIST_ENTRY HlpAcpiCacheList;
 /* ACPI Root System Description Pointer (RSDP) */
 PACPI_RSDP HlpAcpiRsdp;
 
+/* ACPI timer information */
+ACPI_TIMER_INFO HlpAcpiTimerInfo;
+
 /* Active processors count */
 KAFFINITY HlpActiveProcessors;