diff --git a/x64/src/common/inc/kernel/s_boot.h b/x64/src/common/inc/kernel/s_boot.h
index 8290674..870992d 100644
--- a/x64/src/common/inc/kernel/s_boot.h
+++ b/x64/src/common/inc/kernel/s_boot.h
@@ -1,6 +1,8 @@
 #ifndef _S_BOOT_H_
 #define _S_BOOT_H_
 #include "g_abi.h"
+#include "s_pmm.h"
+
 //
 // HAL Boot Info
 //
@@ -9,6 +11,7 @@ typedef struct
     uint64_t krnl_start;
     uint64_t krnl_end;
     k_hal_intr_info_t intr_info;
+    linked_list_t pmm_info;
     char cpu_vd_str[13];
 } k_hal_boot_info_t;
 
diff --git a/x64/src/common/inc/kernel/s_intr.h b/x64/src/common/inc/kernel/s_intr.h
index 974cc55..810e048 100644
--- a/x64/src/common/inc/kernel/s_intr.h
+++ b/x64/src/common/inc/kernel/s_intr.h
@@ -32,6 +32,8 @@ extern KAPI k_irql_t k_set_irql(k_irql_t irql);
 
 extern KAPI k_irql_t k_get_irql();
 
+extern KAPI void k_set_timer_timeout(uint64_t timeout);
+
 // Interrupt handler registration
 // context is a parameter passed by the kernel. HAL must pass back.
 // intr_stack is a parameter passed by the HAL. Used by some HAL interrupt context functions.
diff --git a/x64/src/common/inc/kernel/s_pmm.h b/x64/src/common/inc/kernel/s_pmm.h
index 0d4f9b9..c924293 100644
--- a/x64/src/common/inc/kernel/s_pmm.h
+++ b/x64/src/common/inc/kernel/s_pmm.h
@@ -14,15 +14,10 @@ typedef uint64_t k_physical_addr_t;
 // if unalignment is detected, the kernel bug checks.
 typedef struct
 {
+    linked_list_node_t list_node;
     k_physical_addr_t base;
     uint64_t size;
     uint32_t attr;
 } k_pmm_node_t;
 
-typedef struct
-{
-    uint64_t num_of_nodes;
-    k_pmm_node_t nodes[];
-} k_pmm_info_t;
-
 #endif
\ No newline at end of file