diff --git a/arch/sparc64/kernel/entry.S b/arch/sparc64/kernel/entry.S
index c9b0d7af64ae217897c9fff0d5c94576619f7a69..ea257e8283644787d30d7f25f7f1a347828640a4 100644
--- a/arch/sparc64/kernel/entry.S
+++ b/arch/sparc64/kernel/entry.S
@@ -2593,3 +2593,15 @@ sun4v_mmustat_info:
 	retl
 	 nop
 	.size	sun4v_mmustat_info, .-sun4v_mmustat_info
+
+	.globl	sun4v_mmu_demap_all
+	.type	sun4v_mmu_demap_all,#function
+sun4v_mmu_demap_all:
+	clr	%o0
+	clr	%o1
+	mov	HV_MMU_ALL, %o2
+	mov	HV_FAST_MMU_DEMAP_ALL, %o5
+	ta	HV_FAST_TRAP
+	retl
+	 nop
+	.size	sun4v_mmu_demap_all, .-sun4v_mmu_demap_all
diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c
index e18ccf85224f4fb4625660201b634c795454db8a..fbeb55d71e769a116f01a326b708144c3b1e0c54 100644
--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -1133,14 +1133,9 @@ static void __init mark_kpte_bitmap(unsigned long start, unsigned long end)
 	}
 }
 
-static void __init kernel_physical_mapping_init(void)
+static void __init init_kpte_bitmap(void)
 {
 	unsigned long i;
-#ifdef CONFIG_DEBUG_PAGEALLOC
-	unsigned long mem_alloced = 0UL;
-#endif
-
-	read_obp_memory("reg", &pall[0], &pall_ents);
 
 	for (i = 0; i < pall_ents; i++) {
 		unsigned long phys_start, phys_end;
@@ -1149,14 +1144,24 @@ static void __init kernel_physical_mapping_init(void)
 		phys_end = phys_start + pall[i].reg_size;
 
 		mark_kpte_bitmap(phys_start, phys_end);
+	}
+}
 
+static void __init kernel_physical_mapping_init(void)
+{
 #ifdef CONFIG_DEBUG_PAGEALLOC
+	unsigned long i, mem_alloced = 0UL;
+
+	for (i = 0; i < pall_ents; i++) {
+		unsigned long phys_start, phys_end;
+
+		phys_start = pall[i].phys_addr;
+		phys_end = phys_start + pall[i].reg_size;
+
 		mem_alloced += kernel_map_range(phys_start, phys_end,
 						PAGE_KERNEL);
-#endif
 	}
 
-#ifdef CONFIG_DEBUG_PAGEALLOC
 	printk("Allocated %ld bytes for kernel page tables.\n",
 	       mem_alloced);
 
@@ -1398,6 +1403,10 @@ void __init paging_init(void)
 	
 	inherit_prom_mappings();
 	
+	read_obp_memory("reg", &pall[0], &pall_ents);
+
+	init_kpte_bitmap();
+
 	/* Ok, we can use our TLB miss and window trap handlers safely.  */
 	setup_tba();
 
@@ -1904,7 +1913,9 @@ void __flush_tlb_all(void)
 			     "wrpr	%0, %1, %%pstate"
 			     : "=r" (pstate)
 			     : "i" (PSTATE_IE));
-	if (tlb_type == spitfire) {
+	if (tlb_type == hypervisor) {
+		sun4v_mmu_demap_all();
+	} else if (tlb_type == spitfire) {
 		for (i = 0; i < 64; i++) {
 			/* Spitfire Errata #32 workaround */
 			/* NOTE: Always runs on spitfire, so no
diff --git a/include/asm-sparc64/hypervisor.h b/include/asm-sparc64/hypervisor.h
index 524d49835dfd2002484bfecaec3d47e5fc957dea..3ad45dff52f87f3732d0a38c30cbc017f97edb70 100644
--- a/include/asm-sparc64/hypervisor.h
+++ b/include/asm-sparc64/hypervisor.h
@@ -709,6 +709,10 @@ extern unsigned long sun4v_mmu_tsb_ctx0(unsigned long num_descriptions,
  */
 #define HV_FAST_MMU_DEMAP_ALL		0x24
 
+#ifndef __ASSEMBLY__
+extern void sun4v_mmu_demap_all(void);
+#endif
+
 /* mmu_map_perm_addr()
  * TRAP:	HV_FAST_TRAP
  * FUNCTION:	HV_FAST_MMU_MAP_PERM_ADDR