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diff --git a/kitten/include/lwk/cpuinfo.h b/kitten/include/lwk/cpuinfo.h
new file mode 100644
index 0000000..f7c4152
--- /dev/null
+++ b/kitten/include/lwk/cpuinfo.h
@@ -0,0 +1,47 @@
+#ifndef _LWK_CPUINFO_H
+#define _LWK_CPUINFO_H
+
+#include <lwk/types.h>
+#include <lwk/cpumask.h>
+#include <lwk/cache.h>
+#include <lwk/aspace.h>
+#include <arch/cpuinfo.h>
+
+/**
+ * CPU information.
+ * Each CPU in the system is described by one of these structures.
+ */
+struct cpuinfo {
+	/* Identification */
+	uint16_t	logical_id;	   // CPU's kernel assigned ID
+	uint16_t	physical_id;	   // CPU's hardware ID
+
+	/* Topology information */
+	uint16_t	numa_node_id;	   // NUMA node ID this CPU is in
+	cpumask_t	numa_node_map;	   // CPUs in this CPU's NUMA node
+	cpumask_t	llc_share_map;	   // CPUs sharing last level cache
+
+	/* Physical packaging */
+	uint16_t	phys_socket_id;    // Physical socket/package
+	uint16_t	phys_core_id;      // Core ID in the socket/package
+	uint16_t	phys_hwthread_id;  // Hardware thread ID in core
+
+	/* Memory management info */
+	vmpagesize_t	pagesz_mask;       // Page sizes supported by the CPU
+
+	/* Architecture specific */
+	struct arch_cpuinfo arch;
+} ____cacheline_aligned;
+
+extern struct cpuinfo	cpu_info[NR_CPUS];
+extern cpumask_t	cpu_present_map;
+extern cpumask_t	cpu_online_map;
+
+/**
+ * Returns the number of CPUs in the system.
+ */
+#define num_cpus()	cpus_weight(cpu_present_map)
+
+extern void print_cpuinfo(struct cpuinfo *);
+
+#endif