diff --git a/arch/riscv/include/asm/sections.h b/arch/riscv/include/asm/sections.h
index 3a9971b1210f..1595c5b60cfd 100644
--- a/arch/riscv/include/asm/sections.h
+++ b/arch/riscv/include/asm/sections.h
@@ -9,5 +9,7 @@
 
 extern char _start[];
 extern char _start_kernel[];
+extern char __init_data_begin[], __init_data_end[];
+extern char __init_text_begin[], __init_text_end[];
 
 #endif /* __ASM_SECTIONS_H */
diff --git a/arch/riscv/include/asm/set_memory.h b/arch/riscv/include/asm/set_memory.h
index 4cc3a4e2afd3..913429c9c1ae 100644
--- a/arch/riscv/include/asm/set_memory.h
+++ b/arch/riscv/include/asm/set_memory.h
@@ -15,6 +15,7 @@ int set_memory_ro(unsigned long addr, int numpages);
 int set_memory_rw(unsigned long addr, int numpages);
 int set_memory_x(unsigned long addr, int numpages);
 int set_memory_nx(unsigned long addr, int numpages);
+int set_memory_default(unsigned long addr, int numpages);
 void protect_kernel_text_data(void);
 #else
 static inline int set_memory_ro(unsigned long addr, int numpages) { return 0; }
@@ -22,6 +23,7 @@ static inline int set_memory_rw(unsigned long addr, int numpages) { return 0; }
 static inline int set_memory_x(unsigned long addr, int numpages) { return 0; }
 static inline int set_memory_nx(unsigned long addr, int numpages) { return 0; }
 static inline void protect_kernel_text_data(void) {};
+static inline int set_memory_default(unsigned long addr, int numpages) { return 0; }
 #endif
 
 int set_direct_map_invalid_noflush(struct page *page);
diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c
index b722c5bf892c..abfbdc8cfef3 100644
--- a/arch/riscv/kernel/setup.c
+++ b/arch/riscv/kernel/setup.c
@@ -123,3 +123,12 @@ static int __init topology_init(void)
 	return 0;
 }
 subsys_initcall(topology_init);
+
+void free_initmem(void)
+{
+	unsigned long init_begin = (unsigned long)__init_begin;
+	unsigned long init_end = (unsigned long)__init_end;
+
+	set_memory_default(init_begin, (init_end - init_begin) >> PAGE_SHIFT);
+	free_initmem_default(POISON_FREE_INITMEM);
+}
diff --git a/arch/riscv/kernel/vmlinux.lds.S b/arch/riscv/kernel/vmlinux.lds.S
index cacd7898ba7f..0a1874e48e8a 100644
--- a/arch/riscv/kernel/vmlinux.lds.S
+++ b/arch/riscv/kernel/vmlinux.lds.S
@@ -29,6 +29,26 @@ SECTIONS
 	HEAD_TEXT_SECTION
 	. = ALIGN(PAGE_SIZE);
 
+	.text : {
+		_text = .;
+		_stext = .;
+		TEXT_TEXT
+		SCHED_TEXT
+		CPUIDLE_TEXT
+		LOCK_TEXT
+		KPROBES_TEXT
+		ENTRY_TEXT
+		IRQENTRY_TEXT
+		SOFTIRQENTRY_TEXT
+		*(.fixup)
+		_etext = .;
+	}
+
+#ifdef CONFIG_EFI
+	. = ALIGN(PECOFF_SECTION_ALIGNMENT);
+	__pecoff_text_end = .;
+#endif
+	. = ALIGN(SECTION_ALIGN);
 	__init_begin = .;
 	__init_text_begin = .;
 	.init.text : AT(ADDR(.init.text) - LOAD_OFFSET) ALIGN(SECTION_ALIGN) { \
@@ -53,35 +73,20 @@ SECTIONS
 	{
 		EXIT_TEXT
 	}
+
+	__init_text_end = .;
+	. = ALIGN(SECTION_ALIGN);
+	/* Start of init data section */
+	__init_data_begin = .;
+	INIT_DATA_SECTION(16)
 	.exit.data :
 	{
 		EXIT_DATA
 	}
 	PERCPU_SECTION(L1_CACHE_BYTES)
-	__init_end = .;
 
-	. = ALIGN(SECTION_ALIGN);
-	.text : {
-		_text = .;
-		_stext = .;
-		TEXT_TEXT
-		SCHED_TEXT
-		CPUIDLE_TEXT
-		LOCK_TEXT
-		KPROBES_TEXT
-		ENTRY_TEXT
-		IRQENTRY_TEXT
-		SOFTIRQENTRY_TEXT
-		*(.fixup)
-		_etext = .;
-	}
-
-#ifdef CONFIG_EFI
-	. = ALIGN(PECOFF_SECTION_ALIGNMENT);
-	__pecoff_text_end = .;
-#endif
-
-	INIT_DATA_SECTION(16)
+	__init_data_end = .;
+	__init_end = .;
 
 	/* Start of data section */
 	_sdata = .;
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index 5f196f8158d4..1bb3821d81d5 100644
--- a/arch/riscv/mm/init.c
+++ b/arch/riscv/mm/init.c
@@ -610,13 +610,19 @@ static inline void setup_vm_final(void)
 #ifdef CONFIG_STRICT_KERNEL_RWX
 void protect_kernel_text_data(void)
 {
-	unsigned long text_start = (unsigned long)_text;
+	unsigned long text_start = (unsigned long)_start;
 	unsigned long text_end = (unsigned long)_etext;
+	unsigned long init_text_start = (unsigned long)__init_text_begin;
+	unsigned long init_text_end = (unsigned long)__init_text_end;
+	unsigned long init_data_start = (unsigned long)__init_data_begin;
+	unsigned long init_data_end = (unsigned long)__init_data_end;
 	unsigned long rodata_start = (unsigned long)__start_rodata;
 	unsigned long data_start = (unsigned long)_data;
 	unsigned long max_low = (unsigned long)(__va(PFN_PHYS(max_low_pfn)));
 
+	set_memory_ro(init_text_start, (init_text_end - init_text_start) >> PAGE_SHIFT);
 	set_memory_ro(text_start, (text_end - text_start) >> PAGE_SHIFT);
+	set_memory_nx(init_data_start, (init_data_end - init_data_start) >> PAGE_SHIFT);
 	set_memory_nx(rodata_start, (data_start - rodata_start) >> PAGE_SHIFT);
 	set_memory_nx(data_start, (max_low - data_start) >> PAGE_SHIFT);
 }
diff --git a/arch/riscv/mm/pageattr.c b/arch/riscv/mm/pageattr.c
index 19fecb362d81..04f3fc16aa9c 100644
--- a/arch/riscv/mm/pageattr.c
+++ b/arch/riscv/mm/pageattr.c
@@ -128,6 +128,12 @@ static int __set_memory(unsigned long addr, int numpages, pgprot_t set_mask,
 	return ret;
 }
 
+int set_memory_default(unsigned long addr, int numpages)
+{
+	return __set_memory(addr, numpages, __pgprot(_PAGE_KERNEL),
+			    __pgprot(_PAGE_EXEC));
+}
+
 int set_memory_ro(unsigned long addr, int numpages)
 {
 	return __set_memory(addr, numpages, __pgprot(_PAGE_READ),
