diff --git a/arch/riscv/include/asm/page.h b/arch/riscv/include/asm/page.h
index a1b888f77d572..1c2010c292b3f 100644
--- a/arch/riscv/include/asm/page.h
+++ b/arch/riscv/include/asm/page.h
@@ -87,6 +87,7 @@ extern unsigned long va_kernel_pa_offset;
 extern unsigned long va_kernel_xip_pa_offset;
 #endif
 extern unsigned long pfn_base;
+extern uintptr_t load_sz;
 #define ARCH_PFN_OFFSET		(pfn_base)
 #else
 #define va_pa_offset		0
@@ -99,6 +100,11 @@ extern unsigned long pfn_base;
 extern unsigned long kernel_virt_addr;
 
 #ifdef CONFIG_64BIT
+#define is_kernel_mapping(x)	\
+	((x) >= kernel_virt_addr && (x) < (kernel_virt_addr + load_sz))
+#define is_linear_mapping(x)	\
+	((x) >= PAGE_OFFSET && (x) < kernel_virt_addr)
+
 #define linear_mapping_pa_to_va(x)	((void *)((unsigned long)(x) + va_pa_offset))
 #ifdef CONFIG_XIP_KERNEL
 #define kernel_mapping_pa_to_va(y)	({						\
@@ -125,10 +131,15 @@ extern unsigned long kernel_virt_addr;
 #endif
 #define __va_to_pa_nodebug(x)	({						\
 	unsigned long _x = x;							\
-	(_x < kernel_virt_addr) ?						\
+	is_linear_mapping(_x) ?							\
 		linear_mapping_va_to_pa(_x) : kernel_mapping_va_to_pa(_x);	\
 	})
 #else
+#define is_kernel_mapping(x)	\
+	((x) >= kernel_virt_addr && (x) < (kernel_virt_addr + load_sz))
+#define is_linear_mapping(x)	\
+	((x) >= PAGE_OFFSET)
+
 #define __pa_to_va_nodebug(x)  ((void *)((unsigned long) (x) + va_pa_offset))
 #define __va_to_pa_nodebug(x)  ((unsigned long)(x) - va_pa_offset)
 #endif
diff --git a/arch/riscv/include/asm/sections.h b/arch/riscv/include/asm/sections.h
index 8a303fb1ee3b9..32336e8a17cb0 100644
--- a/arch/riscv/include/asm/sections.h
+++ b/arch/riscv/include/asm/sections.h
@@ -6,6 +6,7 @@
 #define __ASM_SECTIONS_H
 
 #include <asm-generic/sections.h>
+#include <linux/mm.h>
 
 extern char _start[];
 extern char _start_kernel[];
@@ -13,4 +14,20 @@ extern char __init_data_begin[], __init_data_end[];
 extern char __init_text_begin[], __init_text_end[];
 extern char __alt_start[], __alt_end[];
 
+static inline bool is_va_kernel_text(uintptr_t va)
+{
+	uintptr_t start = (uintptr_t)_start;
+	uintptr_t end = (uintptr_t)__init_data_begin;
+
+	return va >= start && va < end;
+}
+
+static inline bool is_va_kernel_lm_alias_text(uintptr_t va)
+{
+	uintptr_t start = (uintptr_t)lm_alias(_start);
+	uintptr_t end = (uintptr_t)lm_alias(__init_data_begin);
+
+	return va >= start && va < end;
+}
+
 #endif /* __ASM_SECTIONS_H */
diff --git a/arch/riscv/include/asm/set_memory.h b/arch/riscv/include/asm/set_memory.h
index 96e317dcab137..a2c14d4b3993e 100644
--- a/arch/riscv/include/asm/set_memory.h
+++ b/arch/riscv/include/asm/set_memory.h
@@ -16,7 +16,6 @@ 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_rw_nx(unsigned long addr, int numpages);
-void protect_kernel_text_data(void);
 static __always_inline int set_kernel_memory(char *startp, char *endp,
 					     int (*set_memory)(unsigned long start,
 							       int num_pages))
@@ -32,7 +31,6 @@ static inline int set_memory_ro(unsigned long addr, int numpages) { return 0; }
 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_rw_nx(unsigned long addr, int numpages) { return 0; }
 static inline int set_kernel_memory(char *startp, char *endp,
 				    int (*set_memory)(unsigned long start,
@@ -42,12 +40,6 @@ static inline int set_kernel_memory(char *startp, char *endp,
 }
 #endif
 
-#if defined(CONFIG_64BIT) && defined(CONFIG_STRICT_KERNEL_RWX)
-void __init protect_kernel_linear_mapping_text_rodata(void);
-#else
-static inline void protect_kernel_linear_mapping_text_rodata(void) {}
-#endif
-
 int set_direct_map_invalid_noflush(struct page *page);
 int set_direct_map_default_noflush(struct page *page);
 bool kernel_page_present(struct page *page);
diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c
index 5c6d2a1fdbc74..b0c6f372a9ec2 100644
--- a/arch/riscv/kernel/setup.c
+++ b/arch/riscv/kernel/setup.c
@@ -289,11 +289,6 @@ void __init setup_arch(char **cmdline_p)
 	init_resources();
 	sbi_init();
 
-	if (IS_ENABLED(CONFIG_STRICT_KERNEL_RWX)) {
-		protect_kernel_text_data();
-		protect_kernel_linear_mapping_text_rodata();
-	}
-
 #ifdef CONFIG_KASAN
 	kasan_init();
 #endif
@@ -328,11 +323,10 @@ subsys_initcall(topology_init);
 
 void free_initmem(void)
 {
-	unsigned long init_begin = (unsigned long)__init_begin;
-	unsigned long init_end = (unsigned long)__init_end;
-
 	if (IS_ENABLED(CONFIG_STRICT_KERNEL_RWX))
-		set_memory_rw_nx(init_begin, (init_end - init_begin) >> PAGE_SHIFT);
+		set_kernel_memory(lm_alias(__init_begin), lm_alias(__init_end),
+				  IS_ENABLED(CONFIG_64BIT) ?
+					set_memory_rw : set_memory_rw_nx);
 
 	free_initmem_default(POISON_FREE_INITMEM);
 }
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index b3fd235ddbb6d..12f956b3a6741 100644
--- a/arch/riscv/mm/init.c
+++ b/arch/riscv/mm/init.c
@@ -455,6 +455,43 @@ asmlinkage void __init __copy_data(void)
 }
 #endif
 
+#ifdef CONFIG_STRICT_KERNEL_RWX
+static __init pgprot_t pgprot_from_va(uintptr_t va)
+{
+	if (is_va_kernel_text(va))
+		return PAGE_KERNEL_READ_EXEC;
+
+	/*
+	 * In 64-bit kernel, the kernel mapping is outside the linear mapping so
+	 * we must protect its linear mapping alias from being executed and
+	 * written.
+	 * And rodata section is marked readonly in mark_rodata_ro.
+	 */
+	if (IS_ENABLED(CONFIG_64BIT) && is_va_kernel_lm_alias_text(va))
+		return PAGE_KERNEL_READ;
+
+	return PAGE_KERNEL;
+}
+
+void mark_rodata_ro(void)
+{
+	set_kernel_memory(__start_rodata, _data, set_memory_ro);
+	if (IS_ENABLED(CONFIG_64BIT))
+		set_kernel_memory(lm_alias(__start_rodata), lm_alias(_data),
+				  set_memory_ro);
+
+	debug_checkwx();
+}
+#else
+static __init pgprot_t pgprot_from_va(uintptr_t va)
+{
+	if (IS_ENABLED(CONFIG_64BIT) && !is_kernel_mapping(va))
+		return PAGE_KERNEL;
+
+	return PAGE_KERNEL_EXEC;
+}
+#endif /* CONFIG_STRICT_KERNEL_RWX */
+
 /*
  * setup_vm() is called from head.S with MMU-off.
  *
@@ -474,7 +511,7 @@ asmlinkage void __init __copy_data(void)
 #endif
 
 static uintptr_t load_pa __initdata;
-static uintptr_t load_sz __initdata;
+uintptr_t load_sz;
 #ifdef CONFIG_XIP_KERNEL
 #define load_pa        (*((uintptr_t *)XIP_FIXUP(&load_pa)))
 #define load_sz        (*((uintptr_t *)XIP_FIXUP(&load_sz)))
@@ -486,7 +523,8 @@ static uintptr_t xiprom_sz __initdata;
 #define xiprom_sz      (*((uintptr_t *)XIP_FIXUP(&xiprom_sz)))
 #define xiprom         (*((uintptr_t *)XIP_FIXUP(&xiprom)))
 
-static void __init create_kernel_page_table(pgd_t *pgdir, uintptr_t map_size)
+static void __init create_kernel_page_table(pgd_t *pgdir, uintptr_t map_size,
+					    __always_unused bool early)
 {
 	uintptr_t va, end_va;
 
@@ -505,7 +543,8 @@ static void __init create_kernel_page_table(pgd_t *pgdir, uintptr_t map_size)
 				   map_size, PAGE_KERNEL);
 }
 #else
-static void __init create_kernel_page_table(pgd_t *pgdir, uintptr_t map_size)
+static void __init create_kernel_page_table(pgd_t *pgdir, uintptr_t map_size,
+					    bool early)
 {
 	uintptr_t va, end_va;
 
@@ -513,7 +552,9 @@ static void __init create_kernel_page_table(pgd_t *pgdir, uintptr_t map_size)
 	for (va = kernel_virt_addr; va < end_va; va += map_size)
 		create_pgd_mapping(pgdir, va,
 				   load_pa + (va - kernel_virt_addr),
-				   map_size, PAGE_KERNEL_EXEC);
+				   map_size,
+				   early ?
+					PAGE_KERNEL_EXEC : pgprot_from_va(va));
 }
 #endif
 
@@ -590,7 +631,7 @@ asmlinkage void __init setup_vm(uintptr_t dtb_pa)
 	 * us to reach paging_init(). We map all memory banks later
 	 * in setup_vm_final() below.
 	 */
-	create_kernel_page_table(early_pg_dir, map_size);
+	create_kernel_page_table(early_pg_dir, map_size, true);
 
 #ifndef __PAGETABLE_PMD_FOLDED
 	/* Setup early PMD for DTB */
@@ -666,22 +707,6 @@ asmlinkage void __init setup_vm(uintptr_t dtb_pa)
 #endif
 }
 
-#if defined(CONFIG_64BIT) && defined(CONFIG_STRICT_KERNEL_RWX)
-void __init protect_kernel_linear_mapping_text_rodata(void)
-{
-	unsigned long text_start = (unsigned long)lm_alias(_start);
-	unsigned long init_text_start = (unsigned long)lm_alias(__init_text_begin);
-	unsigned long rodata_start = (unsigned long)lm_alias(__start_rodata);
-	unsigned long data_start = (unsigned long)lm_alias(_data);
-
-	set_memory_ro(text_start, (init_text_start - text_start) >> PAGE_SHIFT);
-	set_memory_nx(text_start, (init_text_start - text_start) >> PAGE_SHIFT);
-
-	set_memory_ro(rodata_start, (data_start - rodata_start) >> PAGE_SHIFT);
-	set_memory_nx(rodata_start, (data_start - rodata_start) >> PAGE_SHIFT);
-}
-#endif
-
 static void __init setup_vm_final(void)
 {
 	uintptr_t va, map_size;
@@ -714,21 +739,15 @@ static void __init setup_vm_final(void)
 		map_size = best_map_size(start, end - start);
 		for (pa = start; pa < end; pa += map_size) {
 			va = (uintptr_t)__va(pa);
-			create_pgd_mapping(swapper_pg_dir, va, pa,
-					   map_size,
-#ifdef CONFIG_64BIT
-					   PAGE_KERNEL
-#else
-					   PAGE_KERNEL_EXEC
-#endif
-					);
 
+			create_pgd_mapping(swapper_pg_dir, va, pa, map_size,
+					   pgprot_from_va(va));
 		}
 	}
 
 #ifdef CONFIG_64BIT
 	/* Map the kernel */
-	create_kernel_page_table(swapper_pg_dir, PMD_SIZE);
+	create_kernel_page_table(swapper_pg_dir, PMD_SIZE, false);
 #endif
 
 	/* Clear fixmap PTE and PMD mappings */
@@ -759,39 +778,6 @@ static inline void setup_vm_final(void)
 }
 #endif /* CONFIG_MMU */
 
-#ifdef CONFIG_STRICT_KERNEL_RWX
-void __init protect_kernel_text_data(void)
-{
-	unsigned long text_start = (unsigned long)_start;
-	unsigned long init_text_start = (unsigned long)__init_text_begin;
-	unsigned long init_data_start = (unsigned long)__init_data_begin;
-	unsigned long rodata_start = (unsigned long)__start_rodata;
-	unsigned long data_start = (unsigned long)_data;
-#if defined(CONFIG_64BIT) && defined(CONFIG_MMU)
-	unsigned long end_va = kernel_virt_addr + load_sz;
-#else
-	unsigned long end_va = (unsigned long)(__va(PFN_PHYS(max_low_pfn)));
-#endif
-
-	set_memory_ro(text_start, (init_text_start - text_start) >> PAGE_SHIFT);
-	set_memory_ro(init_text_start, (init_data_start - init_text_start) >> PAGE_SHIFT);
-	set_memory_nx(init_data_start, (rodata_start - init_data_start) >> PAGE_SHIFT);
-	/* rodata section is marked readonly in mark_rodata_ro */
-	set_memory_nx(rodata_start, (data_start - rodata_start) >> PAGE_SHIFT);
-	set_memory_nx(data_start, (end_va - data_start) >> PAGE_SHIFT);
-}
-
-void mark_rodata_ro(void)
-{
-	unsigned long rodata_start = (unsigned long)__start_rodata;
-	unsigned long data_start = (unsigned long)_data;
-
-	set_memory_ro(rodata_start, (data_start - rodata_start) >> PAGE_SHIFT);
-
-	debug_checkwx();
-}
-#endif
-
 #ifdef CONFIG_KEXEC_CORE
 /*
  * reserve_crashkernel() - reserves memory for crash kernel