diff --git a/kernel/include/mmu.h b/kernel/include/mmu.h
index ba39ec5bbc4..38f9c9c6704 100644
--- a/kernel/include/mmu.h
+++ b/kernel/include/mmu.h
@@ -25,10 +25,17 @@
  * anonymous mappings. We don't currently maintain an ontology of these in the
  * core kernel.
  */
-#define Z_PHYS_RAM_START	((uintptr_t)CONFIG_SRAM_BASE_ADDRESS)
-#define Z_PHYS_RAM_SIZE		(KB(CONFIG_SRAM_SIZE))
-#define Z_PHYS_RAM_END		(Z_PHYS_RAM_START + Z_PHYS_RAM_SIZE)
-#define Z_NUM_PAGE_FRAMES	(Z_PHYS_RAM_SIZE / (size_t)CONFIG_MMU_PAGE_SIZE)
+
+/** Start address of physical memory. */
+#define K_MEM_PHYS_RAM_START	((uintptr_t)CONFIG_SRAM_BASE_ADDRESS)
+
+/** Size of physical memory. */
+#define K_MEM_PHYS_RAM_SIZE	(KB(CONFIG_SRAM_SIZE))
+
+/** End address (exclusive) of physical memory. */
+#define K_MEM_PHYS_RAM_END	(K_MEM_PHYS_RAM_START + K_MEM_PHYS_RAM_SIZE)
+
+#define Z_NUM_PAGE_FRAMES	(K_MEM_PHYS_RAM_SIZE / (size_t)CONFIG_MMU_PAGE_SIZE)
 
 /** End virtual address of virtual address space */
 #define Z_VIRT_RAM_START	((uint8_t *)CONFIG_KERNEL_VM_BASE)
@@ -76,7 +83,7 @@
 #define K_MEM_BOOT_PHYS_TO_VIRT(phys) ((uint8_t *)(((uintptr_t)(phys)) + K_MEM_VM_OFFSET))
 
 #ifdef CONFIG_ARCH_MAPS_ALL_RAM
-#define Z_FREE_VM_START	K_MEM_BOOT_PHYS_TO_VIRT(Z_PHYS_RAM_END)
+#define Z_FREE_VM_START	K_MEM_BOOT_PHYS_TO_VIRT(K_MEM_PHYS_RAM_END)
 #else
 #define Z_FREE_VM_START	Z_KERNEL_VIRT_END
 #endif /* CONFIG_ARCH_MAPS_ALL_RAM */
@@ -227,7 +234,7 @@ extern struct z_page_frame z_page_frames[Z_NUM_PAGE_FRAMES];
 static inline uintptr_t z_page_frame_to_phys(struct z_page_frame *pf)
 {
 	return (uintptr_t)((pf - z_page_frames) * CONFIG_MMU_PAGE_SIZE) +
-			Z_PHYS_RAM_START;
+			  K_MEM_PHYS_RAM_START;
 }
 
 /* Presumes there is but one mapping in the virtual address space */
@@ -241,8 +248,8 @@ static inline void *z_page_frame_to_virt(struct z_page_frame *pf)
 static inline bool z_is_page_frame(uintptr_t phys)
 {
 	z_assert_phys_aligned(phys);
-	return IN_RANGE(phys, (uintptr_t)Z_PHYS_RAM_START,
-			(uintptr_t)(Z_PHYS_RAM_END - 1));
+	return IN_RANGE(phys, (uintptr_t)K_MEM_PHYS_RAM_START,
+			(uintptr_t)(K_MEM_PHYS_RAM_END - 1));
 }
 
 static inline struct z_page_frame *z_phys_to_page_frame(uintptr_t phys)
@@ -250,7 +257,7 @@ static inline struct z_page_frame *z_phys_to_page_frame(uintptr_t phys)
 	__ASSERT(z_is_page_frame(phys),
 		 "0x%lx not an SRAM physical address", phys);
 
-	return &z_page_frames[(phys - Z_PHYS_RAM_START) /
+	return &z_page_frames[(phys - K_MEM_PHYS_RAM_START) /
 			      CONFIG_MMU_PAGE_SIZE];
 }
 
@@ -278,8 +285,8 @@ void z_page_frames_dump(void);
 
 /* Convenience macro for iterating over all page frames */
 #define Z_PAGE_FRAME_FOREACH(_phys, _pageframe) \
-	for ((_phys) = Z_PHYS_RAM_START, (_pageframe) = z_page_frames; \
-	     (_phys) < Z_PHYS_RAM_END; \
+	for ((_phys) = K_MEM_PHYS_RAM_START, (_pageframe) = z_page_frames; \
+	     (_phys) < K_MEM_PHYS_RAM_END; \
 	     (_phys) += CONFIG_MMU_PAGE_SIZE, (_pageframe)++)
 
 #ifdef CONFIG_DEMAND_PAGING
diff --git a/kernel/mmu.c b/kernel/mmu.c
index 391c74b2145..9fe6ce85a31 100644
--- a/kernel/mmu.c
+++ b/kernel/mmu.c
@@ -111,7 +111,7 @@ void z_page_frames_dump(void)
 
 	__ASSERT(page_frames_initialized, "%s called too early", __func__);
 	printk("Physical memory from 0x%lx to 0x%lx\n",
-	       Z_PHYS_RAM_START, Z_PHYS_RAM_END);
+	       K_MEM_PHYS_RAM_START, K_MEM_PHYS_RAM_END);
 
 	for (int i = 0; i < Z_NUM_PAGE_FRAMES; i++) {
 		struct z_page_frame *pf = &z_page_frames[i];
diff --git a/tests/arch/x86/pagetables/src/main.c b/tests/arch/x86/pagetables/src/main.c
index e42c4e3494e..c9025bd0ead 100644
--- a/tests/arch/x86/pagetables/src/main.c
+++ b/tests/arch/x86/pagetables/src/main.c
@@ -197,7 +197,8 @@ ZTEST(x86_pagetables, test_ram_perms)
 	/* All RAM page frame entries aside from 0x0 must have a mapping.
 	 * We currently identity-map on x86, no conversion necessary other than a cast
 	 */
-	for (pos = (uint8_t *)Z_PHYS_RAM_START; pos < (uint8_t *)Z_PHYS_RAM_END;
+	for (pos = (uint8_t *)K_MEM_PHYS_RAM_START;
+	     pos < (uint8_t *)K_MEM_PHYS_RAM_END;
 	     pos += CONFIG_MMU_PAGE_SIZE) {
 		if (pos == NULL) {
 			continue;