diff --git a/arch/powerpc/include/asm/kfence.h b/arch/powerpc/include/asm/kfence.h
index 424ceef82ae6..78590288ee80 100644
--- a/arch/powerpc/include/asm/kfence.h
+++ b/arch/powerpc/include/asm/kfence.h
@@ -15,10 +15,20 @@
 #define ARCH_FUNC_PREFIX "."
 #endif
 
+#ifdef CONFIG_KFENCE
+extern bool kfence_early_init;
+extern bool kfence_disabled;
+
+static inline void disable_kfence(void)
+{
+	kfence_disabled = true;
+}
+
 static inline bool arch_kfence_init_pool(void)
 {
-	return true;
+	return !kfence_disabled;
 }
+#endif
 
 #ifdef CONFIG_PPC64
 static inline bool kfence_protect_page(unsigned long addr, bool protect)
diff --git a/arch/powerpc/mm/book3s64/radix_pgtable.c b/arch/powerpc/mm/book3s64/radix_pgtable.c
index 15e88f1439ec..a74912e0fd99 100644
--- a/arch/powerpc/mm/book3s64/radix_pgtable.c
+++ b/arch/powerpc/mm/book3s64/radix_pgtable.c
@@ -17,6 +17,7 @@
 #include <linux/hugetlb.h>
 #include <linux/string_helpers.h>
 #include <linux/memory.h>
+#include <linux/kfence.h>
 
 #include <asm/pgalloc.h>
 #include <asm/mmu_context.h>
@@ -31,6 +32,7 @@
 #include <asm/uaccess.h>
 #include <asm/ultravisor.h>
 #include <asm/set_memory.h>
+#include <asm/kfence.h>
 
 #include <trace/events/thp.h>
 
@@ -293,7 +295,8 @@ static unsigned long next_boundary(unsigned long addr, unsigned long end)
 
 static int __meminit create_physical_mapping(unsigned long start,
 					     unsigned long end,
-					     int nid, pgprot_t _prot)
+					     int nid, pgprot_t _prot,
+					     unsigned long mapping_sz_limit)
 {
 	unsigned long vaddr, addr, mapping_size = 0;
 	bool prev_exec, exec = false;
@@ -301,7 +304,10 @@ static int __meminit create_physical_mapping(unsigned long start,
 	int psize;
 	unsigned long max_mapping_size = memory_block_size;
 
-	if (debug_pagealloc_enabled_or_kfence())
+	if (mapping_sz_limit < max_mapping_size)
+		max_mapping_size = mapping_sz_limit;
+
+	if (debug_pagealloc_enabled())
 		max_mapping_size = PAGE_SIZE;
 
 	start = ALIGN(start, PAGE_SIZE);
@@ -356,8 +362,64 @@ static int __meminit create_physical_mapping(unsigned long start,
 	return 0;
 }
 
+#ifdef CONFIG_KFENCE
+static inline phys_addr_t radix_alloc_kfence_pool_early(void)
+{
+	phys_addr_t kfence_pool;
+
+	/*
+	 * TODO: Support to enable KFENCE after bootup depends on the ability to
+	 *       split page table mappings. As such support is not currently
+	 *       implemented for radix pagetables, support enabling KFENCE
+	 *       only at system startup for now.
+	 *
+	 *       After support for splitting mappings is available on radix,
+	 *       radix_alloc_kfence_pool_early() & radix_map_kfence_pool_early()
+	 *       can be dropped and mapping for __kfence_pool memory can be
+	 *       split during arch_kfence_init_pool().
+	 */
+	if (!kfence_early_init)
+		goto no_kfence;
+
+	kfence_pool = memblock_phys_alloc(KFENCE_POOL_SIZE, PAGE_SIZE);
+	if (!kfence_pool)
+		goto no_kfence;
+
+	memblock_mark_nomap(kfence_pool, KFENCE_POOL_SIZE);
+	return kfence_pool;
+
+no_kfence:
+	disable_kfence();
+	return 0;
+}
+
+static inline void radix_map_kfence_pool_early(phys_addr_t kfence_pool)
+{
+	int ret;
+
+	if (!kfence_pool)
+		return;
+
+	if (create_physical_mapping(kfence_pool, kfence_pool + KFENCE_POOL_SIZE,
+				    -1, PAGE_KERNEL, PAGE_SIZE))
+		goto err;
+
+	memblock_clear_nomap(kfence_pool, KFENCE_POOL_SIZE);
+	__kfence_pool = __va(kfence_pool);
+	return;
+
+err:
+	memblock_phys_free(kfence_pool, KFENCE_POOL_SIZE);
+	disable_kfence();
+}
+#else
+static inline phys_addr_t radix_alloc_kfence_pool_early(void) { return 0; }
+static inline void radix_map_kfence_pool_early(phys_addr_t kfence_pool) { }
+#endif
+
 static void __init radix_init_pgtable(void)
 {
+	phys_addr_t kfence_pool;
 	unsigned long rts_field;
 	phys_addr_t start, end;
 	u64 i;
@@ -365,6 +427,8 @@ static void __init radix_init_pgtable(void)
 	/* We don't support slb for radix */
 	slb_set_size(0);
 
+	kfence_pool = radix_alloc_kfence_pool_early();
+
 	/*
 	 * Create the linear mapping
 	 */
@@ -381,9 +445,11 @@ static void __init radix_init_pgtable(void)
 		}
 
 		WARN_ON(create_physical_mapping(start, end,
-						-1, PAGE_KERNEL));
+						-1, PAGE_KERNEL, ~0UL));
 	}
 
+	radix_map_kfence_pool_early(kfence_pool);
+
 	if (!cpu_has_feature(CPU_FTR_HVMODE) &&
 			cpu_has_feature(CPU_FTR_P9_RADIX_PREFETCH_BUG)) {
 		/*
@@ -875,7 +941,7 @@ int __meminit radix__create_section_mapping(unsigned long start,
 	}
 
 	return create_physical_mapping(__pa(start), __pa(end),
-				       nid, prot);
+				       nid, prot, ~0UL);
 }
 
 int __meminit radix__remove_section_mapping(unsigned long start, unsigned long end)
diff --git a/arch/powerpc/mm/init-common.c b/arch/powerpc/mm/init-common.c
index d3a7726ecf51..f881ab5107aa 100644
--- a/arch/powerpc/mm/init-common.c
+++ b/arch/powerpc/mm/init-common.c
@@ -31,6 +31,20 @@ EXPORT_SYMBOL_GPL(kernstart_virt_addr);
 
 bool disable_kuep = !IS_ENABLED(CONFIG_PPC_KUEP);
 bool disable_kuap = !IS_ENABLED(CONFIG_PPC_KUAP);
+#ifdef CONFIG_KFENCE
+bool __ro_after_init kfence_early_init = !!CONFIG_KFENCE_SAMPLE_INTERVAL;
+bool __ro_after_init kfence_disabled;
+
+static int __init parse_kfence_early_init(char *arg)
+{
+	int val;
+
+	if (get_option(&arg, &val))
+		kfence_early_init = !!val;
+	return 0;
+}
+early_param("kfence.sample_interval", parse_kfence_early_init);
+#endif
 
 static int __init parse_nosmep(char *p)
 {
