diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h
index 24b5e6b23417..99145a24c0f6 100644
--- a/arch/arm64/include/asm/kvm_asm.h
+++ b/arch/arm64/include/asm/kvm_asm.h
@@ -81,6 +81,7 @@ enum __kvm_host_smccc_func {
 	__KVM_HOST_SMCCC_FUNC___pkvm_init_vm,
 	__KVM_HOST_SMCCC_FUNC___pkvm_init_vcpu,
 	__KVM_HOST_SMCCC_FUNC___pkvm_teardown_vm,
+	__KVM_HOST_SMCCC_FUNC___pkvm_copy_host_stage2,
 };
 
 #define DECLARE_KVM_VHE_SYM(sym)	extern char sym[]
diff --git a/arch/arm64/include/asm/kvm_pgtable.h b/arch/arm64/include/asm/kvm_pgtable.h
index d3e354bb8351..be615700f8ac 100644
--- a/arch/arm64/include/asm/kvm_pgtable.h
+++ b/arch/arm64/include/asm/kvm_pgtable.h
@@ -10,6 +10,7 @@
 #include <linux/bits.h>
 #include <linux/kvm_host.h>
 #include <linux/types.h>
+#include <asm/kvm_host.h>
 
 #define KVM_PGTABLE_MAX_LEVELS		4U
 
@@ -351,6 +352,21 @@ struct kvm_pgtable {
 	kvm_pgtable_force_pte_cb_t		force_pte_cb;
 };
 
+/**
+ * struct kvm_pgtable_snapshot - Snapshot page-table wrapper.
+ * @pgtable:		The page-table configuration.
+ * @mc:			Memcache used for pagetable pages allocation.
+ * @pgd_hva:		Host virtual address of a physically contiguous buffer
+ *			used for storing the PGD.
+ * @pgd_len:		The size of the phyisically contiguous buffer in bytes.
+ */
+struct kvm_pgtable_snapshot {
+	struct kvm_pgtable			pgtable;
+	struct kvm_hyp_memcache			mc;
+	void					*pgd_hva;
+	size_t					pgd_len;
+};
+
 /**
  * kvm_pgtable_hyp_init() - Initialise a hypervisor stage-1 page-table.
  * @pgt:	Uninitialised page-table structure to initialise.
@@ -756,4 +772,24 @@ enum kvm_pgtable_prot kvm_pgtable_hyp_pte_prot(kvm_pte_t pte);
  */
 void kvm_tlb_flush_vmid_range(struct kvm_s2_mmu *mmu,
 				phys_addr_t addr, size_t size);
+
+#ifdef CONFIG_NVHE_EL2_DEBUG
+/**
+ * kvm_pgtable_stage2_copy() - Snapshot the pagetable
+ *
+ * @to_pgt:	Destination pagetable
+ * @from_pgt:	Source pagetable. The caller must lock the pagetables first
+ * @mc:		The memcache where we allocate the destination pagetables from
+ */
+int kvm_pgtable_stage2_copy(struct kvm_pgtable *to_pgt,
+			    const struct kvm_pgtable *from_pgt,
+			    void *mc);
+#else
+static inline int kvm_pgtable_stage2_copy(struct kvm_pgtable *to_pgt,
+					  const struct kvm_pgtable *from_pgt,
+					  void *mc)
+{
+	return -EPERM;
+}
+#endif	/* CONFIG_NVHE_EL2_DEBUG */
 #endif	/* __ARM64_KVM_PGTABLE_H__ */
diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
index 0972faccc2af..9cfb35d68850 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
@@ -69,6 +69,7 @@ int __pkvm_host_donate_hyp(u64 pfn, u64 nr_pages);
 int __pkvm_hyp_donate_host(u64 pfn, u64 nr_pages);
 int __pkvm_host_share_ffa(u64 pfn, u64 nr_pages);
 int __pkvm_host_unshare_ffa(u64 pfn, u64 nr_pages);
+int __pkvm_host_stage2_prepare_copy(struct kvm_pgtable_snapshot *snapshot);
 
 bool addr_is_memory(phys_addr_t phys);
 int host_stage2_idmap_locked(phys_addr_t addr, u64 size, enum kvm_pgtable_prot prot);
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
index 2385fd03ed87..0d9b56c31cf2 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
@@ -314,6 +314,23 @@ static void handle___pkvm_teardown_vm(struct kvm_cpu_context *host_ctxt)
 	cpu_reg(host_ctxt, 1) = __pkvm_teardown_vm(handle);
 }
 
+static void handle___pkvm_copy_host_stage2(struct kvm_cpu_context *host_ctxt)
+{
+	int ret = -EPERM;
+#ifdef CONFIG_NVHE_EL2_DEBUG
+	DECLARE_REG(struct kvm_pgtable_snapshot *, snapshot, host_ctxt, 1);
+	kvm_pteref_t pgd;
+
+	snapshot = kern_hyp_va(snapshot);
+	ret = __pkvm_host_stage2_prepare_copy(snapshot);
+	if (!ret) {
+		pgd = snapshot->pgtable.pgd;
+		snapshot->pgtable.pgd = (kvm_pteref_t)__hyp_pa(pgd);
+	}
+#endif
+	cpu_reg(host_ctxt, 1) = ret;
+}
+
 typedef void (*hcall_t)(struct kvm_cpu_context *);
 
 #define HANDLE_FUNC(x)	[__KVM_HOST_SMCCC_FUNC_##x] = (hcall_t)handle_##x
@@ -348,6 +365,7 @@ static const hcall_t host_hcall[] = {
 	HANDLE_FUNC(__pkvm_init_vm),
 	HANDLE_FUNC(__pkvm_init_vcpu),
 	HANDLE_FUNC(__pkvm_teardown_vm),
+	HANDLE_FUNC(__pkvm_copy_host_stage2),
 };
 
 static void handle_host_hcall(struct kvm_cpu_context *host_ctxt)
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index 9d703441278b..fe1a6dbd6d31 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -266,6 +266,109 @@ int kvm_guest_prepare_stage2(struct pkvm_hyp_vm *vm, void *pgd)
 	return 0;
 }
 
+#ifdef CONFIG_NVHE_EL2_DEBUG
+static struct hyp_pool snapshot_pool = {0};
+static DEFINE_HYP_SPINLOCK(snapshot_pool_lock);
+
+static void *snapshot_zalloc_pages_exact(size_t size)
+{
+	void *addr = hyp_alloc_pages(&snapshot_pool, get_order(size));
+
+	hyp_split_page(hyp_virt_to_page(addr));
+
+	/*
+	 * The size of concatenated PGDs is always a power of two of PAGE_SIZE,
+	 * so there should be no need to free any of the tail pages to make the
+	 * allocation exact.
+	 */
+	WARN_ON(size != (PAGE_SIZE << get_order(size)));
+
+	return addr;
+}
+
+static void snapshot_get_page(void *addr)
+{
+	hyp_get_page(&snapshot_pool, addr);
+}
+
+static void *snapshot_zalloc_page(void *mc)
+{
+	struct hyp_page *p;
+	void *addr;
+
+	addr = hyp_alloc_pages(&snapshot_pool, 0);
+	if (addr)
+		return addr;
+
+	addr = pop_hyp_memcache(mc, hyp_phys_to_virt);
+	if (!addr)
+		return addr;
+
+	memset(addr, 0, PAGE_SIZE);
+	p = hyp_virt_to_page(addr);
+	memset(p, 0, sizeof(*p));
+	p->refcount = 1;
+
+	return addr;
+}
+
+static void snapshot_s2_free_pages_exact(void *addr, unsigned long size)
+{
+	u8 order = get_order(size);
+	unsigned int i;
+	struct hyp_page *p;
+
+	for (i = 0; i < (1 << order); i++) {
+		p = hyp_virt_to_page(addr + (i * PAGE_SIZE));
+		hyp_page_ref_dec_and_test(p);
+	}
+}
+
+int __pkvm_host_stage2_prepare_copy(struct kvm_pgtable_snapshot *snapshot)
+{
+	size_t required_pgd_len;
+	struct kvm_pgtable_mm_ops mm_ops = {0};
+	struct kvm_pgtable *to_pgt, *from_pgt = &host_mmu.pgt;
+	struct kvm_hyp_memcache *memcache = &snapshot->mc;
+	int ret;
+	void *pgd;
+	u64 nr_pages;
+
+	required_pgd_len = kvm_pgtable_stage2_pgd_size(host_mmu.arch.vtcr);
+	if (snapshot->pgd_len < required_pgd_len)
+		return -ENOMEM;
+
+	to_pgt = &snapshot->pgtable;
+	nr_pages = snapshot->pgd_len / PAGE_SIZE;
+	pgd = kern_hyp_va(snapshot->pgd_hva);
+
+	hyp_spin_lock(&snapshot_pool_lock);
+	hyp_pool_init(&snapshot_pool, hyp_virt_to_pfn(pgd),
+		      required_pgd_len / PAGE_SIZE, 0);
+
+	mm_ops.zalloc_pages_exact	= snapshot_zalloc_pages_exact;
+	mm_ops.zalloc_page		= snapshot_zalloc_page;
+	mm_ops.free_pages_exact		= snapshot_s2_free_pages_exact;
+	mm_ops.get_page			= snapshot_get_page;
+	mm_ops.phys_to_virt		= hyp_phys_to_virt;
+	mm_ops.virt_to_phys		= hyp_virt_to_phys;
+	mm_ops.page_count		= hyp_page_count;
+
+	to_pgt->ia_bits		= from_pgt->ia_bits;
+	to_pgt->start_level	= from_pgt->start_level;
+	to_pgt->flags		= from_pgt->flags;
+	to_pgt->mm_ops		= &mm_ops;
+
+	host_lock_component();
+	ret = kvm_pgtable_stage2_copy(to_pgt, from_pgt, memcache);
+	host_unlock_component();
+
+	hyp_spin_unlock(&snapshot_pool_lock);
+
+	return ret;
+}
+#endif /* CONFIG_NVHE_EL2_DEBUG */
+
 void reclaim_guest_pages(struct pkvm_hyp_vm *vm, struct kvm_hyp_memcache *mc)
 {
 	void *addr;
diff --git a/arch/arm64/kvm/hyp/pgtable.c b/arch/arm64/kvm/hyp/pgtable.c
index f155b8c9e98c..256654b89c1e 100644
--- a/arch/arm64/kvm/hyp/pgtable.c
+++ b/arch/arm64/kvm/hyp/pgtable.c
@@ -1598,3 +1598,59 @@ void kvm_pgtable_stage2_free_unlinked(struct kvm_pgtable_mm_ops *mm_ops, void *p
 	WARN_ON(mm_ops->page_count(pgtable) != 1);
 	mm_ops->put_page(pgtable);
 }
+
+#ifdef CONFIG_NVHE_EL2_DEBUG
+static int stage2_copy_walker(const struct kvm_pgtable_visit_ctx *ctx,
+			      enum kvm_pgtable_walk_flags visit)
+{
+	struct kvm_pgtable_mm_ops *mm_ops = ctx->mm_ops;
+	void *copy_table, *original_addr;
+	kvm_pte_t new = ctx->old;
+
+	if (!stage2_pte_is_counted(ctx->old))
+		return 0;
+
+	if (kvm_pte_table(ctx->old, ctx->level)) {
+		copy_table = mm_ops->zalloc_page(ctx->arg);
+		if (!copy_table)
+			return -ENOMEM;
+
+		original_addr = kvm_pte_follow(ctx->old, mm_ops);
+
+		memcpy(copy_table, original_addr, PAGE_SIZE);
+		new = kvm_init_table_pte(copy_table, mm_ops);
+	}
+
+	*ctx->ptep = new;
+
+	return 0;
+}
+
+int kvm_pgtable_stage2_copy(struct kvm_pgtable *to_pgt,
+			    const struct kvm_pgtable *from_pgt,
+			    void *mc)
+{
+	int ret;
+	size_t pgd_sz;
+	struct kvm_pgtable_mm_ops *mm_ops = to_pgt->mm_ops;
+	struct kvm_pgtable_walker walker = {
+		.cb	= stage2_copy_walker,
+		.flags	= KVM_PGTABLE_WALK_LEAF |
+			  KVM_PGTABLE_WALK_TABLE_PRE,
+		.arg = mc
+	};
+
+	pgd_sz = kvm_pgd_pages(to_pgt->ia_bits, to_pgt->start_level) *
+		PAGE_SIZE;
+	to_pgt->pgd = (kvm_pteref_t)mm_ops->zalloc_pages_exact(pgd_sz);
+	if (!to_pgt->pgd)
+		return -ENOMEM;
+
+	memcpy(to_pgt->pgd, from_pgt->pgd, pgd_sz);
+
+	ret = kvm_pgtable_walk(to_pgt, 0, BIT(to_pgt->ia_bits), &walker);
+	mm_ops->free_pages_exact(to_pgt->pgd, pgd_sz);
+
+	return ret;
+}
+#endif /* CONFIG_NVHE_EL2_DEBUG */
