KVM: x86: use vcpu-specific functions to read/write/translate GFNs

We need to hide SMRAM from guests not running in SMM.  Therefore,
all uses of kvm_read_guest* and kvm_write_guest* must be changed to
check whether the VCPU is in system management mode and use a
different set of memslots.  Switch from kvm_* to the newly-introduced
kvm_vcpu_*, which call into kvm_arch_vcpu_memslots_id.
Reviewed-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

arch/x86/include/asm/kvm_host.h

@@ -887,7 +887,7 @@ void kvm_mmu_clear_dirty_pt_masked(struct kvm *kvm,
 				   struct kvm_memory_slot *slot,
 				   gfn_t gfn_offset, unsigned long mask);
 void kvm_mmu_zap_all(struct kvm *kvm);
-void kvm_mmu_invalidate_mmio_sptes(struct kvm *kvm);
+void kvm_mmu_invalidate_mmio_sptes(struct kvm *kvm, struct kvm_memslots *slots);
 unsigned int kvm_mmu_calculate_mmu_pages(struct kvm *kvm);
 void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned int kvm_nr_mmu_pages);
 

arch/x86/kvm/mmu.c

@@ -223,15 +223,15 @@ static unsigned int get_mmio_spte_generation(u64 spte)
 	return gen;
 }
 
-static unsigned int kvm_current_mmio_generation(struct kvm *kvm)
+static unsigned int kvm_current_mmio_generation(struct kvm_vcpu *vcpu)
 {
-	return kvm_memslots(kvm)->generation & MMIO_GEN_MASK;
+	return kvm_vcpu_memslots(vcpu)->generation & MMIO_GEN_MASK;
 }
 
-static void mark_mmio_spte(struct kvm *kvm, u64 *sptep, u64 gfn,
+static void mark_mmio_spte(struct kvm_vcpu *vcpu, u64 *sptep, u64 gfn,
 			   unsigned access)
 {
-	unsigned int gen = kvm_current_mmio_generation(kvm);
+	unsigned int gen = kvm_current_mmio_generation(vcpu);
 	u64 mask = generation_mmio_spte_mask(gen);
 
 	access &= ACC_WRITE_MASK | ACC_USER_MASK;
@@ -258,22 +258,22 @@ static unsigned get_mmio_spte_access(u64 spte)
 	return (spte & ~mask) & ~PAGE_MASK;
 }
 
-static bool set_mmio_spte(struct kvm *kvm, u64 *sptep, gfn_t gfn,
+static bool set_mmio_spte(struct kvm_vcpu *vcpu, u64 *sptep, gfn_t gfn,
 			  pfn_t pfn, unsigned access)
 {
 	if (unlikely(is_noslot_pfn(pfn))) {
-		mark_mmio_spte(kvm, sptep, gfn, access);
+		mark_mmio_spte(vcpu, sptep, gfn, access);
 		return true;
 	}
 
 	return false;
 }
 
-static bool check_mmio_spte(struct kvm *kvm, u64 spte)
+static bool check_mmio_spte(struct kvm_vcpu *vcpu, u64 spte)
 {
 	unsigned int kvm_gen, spte_gen;
 
-	kvm_gen = kvm_current_mmio_generation(kvm);
+	kvm_gen = kvm_current_mmio_generation(vcpu);
 	spte_gen = get_mmio_spte_generation(spte);
 
 	trace_check_mmio_spte(spte, kvm_gen, spte_gen);
@@ -837,14 +837,14 @@ static void unaccount_shadowed(struct kvm *kvm, struct kvm_mmu_page *sp)
 	kvm->arch.indirect_shadow_pages--;
 }
 
-static int has_wrprotected_page(struct kvm *kvm,
+static int has_wrprotected_page(struct kvm_vcpu *vcpu,
 				gfn_t gfn,
 				int level)
 {
 	struct kvm_memory_slot *slot;
 	struct kvm_lpage_info *linfo;
 
-	slot = gfn_to_memslot(kvm, gfn);
+	slot = kvm_vcpu_gfn_to_memslot(vcpu, gfn);
 	if (slot) {
 		linfo = lpage_info_slot(gfn, slot, level);
 		return linfo->write_count;
@@ -876,7 +876,7 @@ gfn_to_memslot_dirty_bitmap(struct kvm_vcpu *vcpu, gfn_t gfn,
 {
 	struct kvm_memory_slot *slot;
 
-	slot = gfn_to_memslot(vcpu->kvm, gfn);
+	slot = kvm_vcpu_gfn_to_memslot(vcpu, gfn);
 	if (!slot || slot->flags & KVM_MEMSLOT_INVALID ||
 	      (no_dirty_log && slot->dirty_bitmap))
 		slot = NULL;
@@ -901,7 +901,7 @@ static int mapping_level(struct kvm_vcpu *vcpu, gfn_t large_gfn)
 	max_level = min(kvm_x86_ops->get_lpage_level(), host_level);
 
 	for (level = PT_DIRECTORY_LEVEL; level <= max_level; ++level)
-		if (has_wrprotected_page(vcpu->kvm, large_gfn, level))
+		if (has_wrprotected_page(vcpu, large_gfn, level))
 			break;
 
 	return level - 1;
@@ -1336,18 +1336,18 @@ void kvm_arch_mmu_enable_log_dirty_pt_masked(struct kvm *kvm,
 		kvm_mmu_write_protect_pt_masked(kvm, slot, gfn_offset, mask);
 }
 
-static bool rmap_write_protect(struct kvm *kvm, u64 gfn)
+static bool rmap_write_protect(struct kvm_vcpu *vcpu, u64 gfn)
 {
 	struct kvm_memory_slot *slot;
 	unsigned long *rmapp;
 	int i;
 	bool write_protected = false;
 
-	slot = gfn_to_memslot(kvm, gfn);
+	slot = kvm_vcpu_gfn_to_memslot(vcpu, gfn);
 
 	for (i = PT_PAGE_TABLE_LEVEL; i <= PT_MAX_HUGEPAGE_LEVEL; ++i) {
 		rmapp = __gfn_to_rmap(gfn, i, slot);
-		write_protected |= __rmap_write_protect(kvm, rmapp, true);
+		write_protected |= __rmap_write_protect(vcpu->kvm, rmapp, true);
 	}
 
 	return write_protected;
@@ -2032,7 +2032,7 @@ static void mmu_sync_children(struct kvm_vcpu *vcpu,
 		bool protected = false;
 
 		for_each_sp(pages, sp, parents, i)
-			protected |= rmap_write_protect(vcpu->kvm, sp->gfn);
+			protected |= rmap_write_protect(vcpu, sp->gfn);
 
 		if (protected)
 			kvm_flush_remote_tlbs(vcpu->kvm);
@@ -2130,7 +2130,7 @@ static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu,
 	hlist_add_head(&sp->hash_link,
 		&vcpu->kvm->arch.mmu_page_hash[kvm_page_table_hashfn(gfn)]);
 	if (!direct) {
-		if (rmap_write_protect(vcpu->kvm, gfn))
+		if (rmap_write_protect(vcpu, gfn))
 			kvm_flush_remote_tlbs(vcpu->kvm);
 		if (level > PT_PAGE_TABLE_LEVEL && need_sync)
 			kvm_sync_pages(vcpu, gfn);
@@ -2581,7 +2581,7 @@ static int set_spte(struct kvm_vcpu *vcpu, u64 *sptep,
 	u64 spte;
 	int ret = 0;
 
-	if (set_mmio_spte(vcpu->kvm, sptep, gfn, pfn, pte_access))
+	if (set_mmio_spte(vcpu, sptep, gfn, pfn, pte_access))
 		return 0;
 
 	spte = PT_PRESENT_MASK;
@@ -2618,7 +2618,7 @@ static int set_spte(struct kvm_vcpu *vcpu, u64 *sptep,
 		 * be fixed if guest refault.
 		 */
 		if (level > PT_PAGE_TABLE_LEVEL &&
-		    has_wrprotected_page(vcpu->kvm, gfn, level))
+		    has_wrprotected_page(vcpu, gfn, level))
 			goto done;
 
 		spte |= PT_WRITABLE_MASK | SPTE_MMU_WRITEABLE;
@@ -2642,7 +2642,7 @@ static int set_spte(struct kvm_vcpu *vcpu, u64 *sptep,
 	}
 
 	if (pte_access & ACC_WRITE_MASK) {
-		mark_page_dirty(vcpu->kvm, gfn);
+		kvm_vcpu_mark_page_dirty(vcpu, gfn);
 		spte |= shadow_dirty_mask;
 	}
 
@@ -2860,7 +2860,7 @@ static int kvm_handle_bad_page(struct kvm_vcpu *vcpu, gfn_t gfn, pfn_t pfn)
 		return 1;
 
 	if (pfn == KVM_PFN_ERR_HWPOISON) {
-		kvm_send_hwpoison_signal(gfn_to_hva(vcpu->kvm, gfn), current);
+		kvm_send_hwpoison_signal(kvm_vcpu_gfn_to_hva(vcpu, gfn), current);
 		return 0;
 	}
 
@@ -2883,7 +2883,7 @@ static void transparent_hugepage_adjust(struct kvm_vcpu *vcpu,
 	if (!is_error_noslot_pfn(pfn) && !kvm_is_reserved_pfn(pfn) &&
 	    level == PT_PAGE_TABLE_LEVEL &&
 	    PageTransCompound(pfn_to_page(pfn)) &&
-	    !has_wrprotected_page(vcpu->kvm, gfn, PT_DIRECTORY_LEVEL)) {
+	    !has_wrprotected_page(vcpu, gfn, PT_DIRECTORY_LEVEL)) {
 		unsigned long mask;
 		/*
 		 * mmu_notifier_retry was successful and we hold the
@@ -2975,7 +2975,7 @@ fast_pf_fix_direct_spte(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
 	 * Compare with set_spte where instead shadow_dirty_mask is set.
 	 */
 	if (cmpxchg64(sptep, spte, spte | PT_WRITABLE_MASK) == spte)
-		mark_page_dirty(vcpu->kvm, gfn);
+		kvm_vcpu_mark_page_dirty(vcpu, gfn);
 
 	return true;
 }
@@ -3430,7 +3430,7 @@ int handle_mmio_page_fault_common(struct kvm_vcpu *vcpu, u64 addr, bool direct)
 		gfn_t gfn = get_mmio_spte_gfn(spte);
 		unsigned access = get_mmio_spte_access(spte);
 
-		if (!check_mmio_spte(vcpu->kvm, spte))
+		if (!check_mmio_spte(vcpu, spte))
 			return RET_MMIO_PF_INVALID;
 
 		if (direct)
@@ -3502,7 +3502,7 @@ static int kvm_arch_setup_async_pf(struct kvm_vcpu *vcpu, gva_t gva, gfn_t gfn)
 	arch.direct_map = vcpu->arch.mmu.direct_map;
 	arch.cr3 = vcpu->arch.mmu.get_cr3(vcpu);
 
-	return kvm_setup_async_pf(vcpu, gva, gfn_to_hva(vcpu->kvm, gfn), &arch);
+	return kvm_setup_async_pf(vcpu, gva, kvm_vcpu_gfn_to_hva(vcpu, gfn), &arch);
 }
 
 static bool can_do_async_pf(struct kvm_vcpu *vcpu)
@@ -3520,7 +3520,7 @@ static bool try_async_pf(struct kvm_vcpu *vcpu, bool prefault, gfn_t gfn,
 	struct kvm_memory_slot *slot;
 	bool async;
 
-	slot = gfn_to_memslot(vcpu->kvm, gfn);
+	slot = kvm_vcpu_gfn_to_memslot(vcpu, gfn);
 	async = false;
 	*pfn = __gfn_to_pfn_memslot(slot, gfn, false, &async, write, writable);
 	if (!async)
@@ -3633,7 +3633,7 @@ static void inject_page_fault(struct kvm_vcpu *vcpu,
 	vcpu->arch.mmu.inject_page_fault(vcpu, fault);
 }
 
-static bool sync_mmio_spte(struct kvm *kvm, u64 *sptep, gfn_t gfn,
+static bool sync_mmio_spte(struct kvm_vcpu *vcpu, u64 *sptep, gfn_t gfn,
 			   unsigned access, int *nr_present)
 {
 	if (unlikely(is_mmio_spte(*sptep))) {
@@ -3643,7 +3643,7 @@ static bool sync_mmio_spte(struct kvm *kvm, u64 *sptep, gfn_t gfn,
 		}
 
 		(*nr_present)++;
-		mark_mmio_spte(kvm, sptep, gfn, access);
+		mark_mmio_spte(vcpu, sptep, gfn, access);
 		return true;
 	}
 
@@ -4153,7 +4153,7 @@ static u64 mmu_pte_write_fetch_gpte(struct kvm_vcpu *vcpu, gpa_t *gpa,
 		/* Handle a 32-bit guest writing two halves of a 64-bit gpte */
 		*gpa &= ~(gpa_t)7;
 		*bytes = 8;
-		r = kvm_read_guest(vcpu->kvm, *gpa, &gentry, 8);
+		r = kvm_vcpu_read_guest(vcpu, *gpa, &gentry, 8);
 		if (r)
 			gentry = 0;
 		new = (const u8 *)&gentry;
@@ -4779,13 +4779,13 @@ static bool kvm_has_zapped_obsolete_pages(struct kvm *kvm)
 	return unlikely(!list_empty_careful(&kvm->arch.zapped_obsolete_pages));
 }
 
-void kvm_mmu_invalidate_mmio_sptes(struct kvm *kvm)
+void kvm_mmu_invalidate_mmio_sptes(struct kvm *kvm, struct kvm_memslots *slots)
 {
 	/*
 	 * The very rare case: if the generation-number is round,
 	 * zap all shadow pages.
 	 */
-	if (unlikely(kvm_current_mmio_generation(kvm) == 0)) {
+	if (unlikely((slots->generation & MMIO_GEN_MASK) == 0)) {
 		printk_ratelimited(KERN_DEBUG "kvm: zapping shadow pages for mmio generation wraparound\n");
 		kvm_mmu_invalidate_zap_all_pages(kvm);
 	}

arch/x86/kvm/mmu_audit.c

@@ -114,7 +114,7 @@ static void audit_mappings(struct kvm_vcpu *vcpu, u64 *sptep, int level)
 		return;
 
 	gfn = kvm_mmu_page_get_gfn(sp, sptep - sp->spt);
-	pfn = gfn_to_pfn_atomic(vcpu->kvm, gfn);
+	pfn = kvm_vcpu_gfn_to_pfn_atomic(vcpu, gfn);
 
 	if (is_error_pfn(pfn))
 		return;

arch/x86/kvm/paging_tmpl.h

@@ -256,7 +256,7 @@ static int FNAME(update_accessed_dirty_bits)(struct kvm_vcpu *vcpu,
 		if (ret)
 			return ret;
 
-		mark_page_dirty(vcpu->kvm, table_gfn);
+		kvm_vcpu_mark_page_dirty(vcpu, table_gfn);
 		walker->ptes[level] = pte;
 	}
 	return 0;
@@ -338,7 +338,7 @@ static int FNAME(walk_addr_generic)(struct guest_walker *walker,
 
 		real_gfn = gpa_to_gfn(real_gfn);
 
-		host_addr = gfn_to_hva_prot(vcpu->kvm, real_gfn,
+		host_addr = kvm_vcpu_gfn_to_hva_prot(vcpu, real_gfn,
 					    &walker->pte_writable[walker->level - 1]);
 		if (unlikely(kvm_is_error_hva(host_addr)))
 			goto error;
@@ -511,11 +511,11 @@ static bool FNAME(gpte_changed)(struct kvm_vcpu *vcpu,
 		base_gpa = pte_gpa & ~mask;
 		index = (pte_gpa - base_gpa) / sizeof(pt_element_t);
 
-		r = kvm_read_guest_atomic(vcpu->kvm, base_gpa,
+		r = kvm_vcpu_read_guest_atomic(vcpu, base_gpa,
 				gw->prefetch_ptes, sizeof(gw->prefetch_ptes));
 		curr_pte = gw->prefetch_ptes[index];
 	} else
-		r = kvm_read_guest_atomic(vcpu->kvm, pte_gpa,
+		r = kvm_vcpu_read_guest_atomic(vcpu, pte_gpa,
 				  &curr_pte, sizeof(curr_pte));
 
 	return r || curr_pte != gw->ptes[level - 1];
@@ -869,8 +869,8 @@ static void FNAME(invlpg)(struct kvm_vcpu *vcpu, gva_t gva)
 			if (!rmap_can_add(vcpu))
 				break;
 
-			if (kvm_read_guest_atomic(vcpu->kvm, pte_gpa, &gpte,
-						  sizeof(pt_element_t)))
+			if (kvm_vcpu_read_guest_atomic(vcpu, pte_gpa, &gpte,
+						       sizeof(pt_element_t)))
 				break;
 
 			FNAME(update_pte)(vcpu, sp, sptep, &gpte);
@@ -956,8 +956,8 @@ static int FNAME(sync_page)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp)
 
 		pte_gpa = first_pte_gpa + i * sizeof(pt_element_t);
 
-		if (kvm_read_guest_atomic(vcpu->kvm, pte_gpa, &gpte,
-					  sizeof(pt_element_t)))
+		if (kvm_vcpu_read_guest_atomic(vcpu, pte_gpa, &gpte,
+					       sizeof(pt_element_t)))
 			return -EINVAL;
 
 		if (FNAME(prefetch_invalid_gpte)(vcpu, sp, &sp->spt[i], gpte)) {
@@ -970,7 +970,7 @@ static int FNAME(sync_page)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp)
 		pte_access &= FNAME(gpte_access)(vcpu, gpte);
 		FNAME(protect_clean_gpte)(&pte_access, gpte);
 
-		if (sync_mmio_spte(vcpu->kvm, &sp->spt[i], gfn, pte_access,
+		if (sync_mmio_spte(vcpu, &sp->spt[i], gfn, pte_access,
 		      &nr_present))
 			continue;
 

arch/x86/kvm/svm.c

@@ -1955,8 +1955,8 @@ static u64 nested_svm_get_tdp_pdptr(struct kvm_vcpu *vcpu, int index)
 	u64 pdpte;
 	int ret;
 
-	ret = kvm_read_guest_page(vcpu->kvm, gpa_to_gfn(cr3), &pdpte,
-				  offset_in_page(cr3) + index * 8, 8);
+	ret = kvm_vcpu_read_guest_page(vcpu, gpa_to_gfn(cr3), &pdpte,
+				       offset_in_page(cr3) + index * 8, 8);
 	if (ret)
 		return 0;
 	return pdpte;
@@ -2114,7 +2114,7 @@ static void *nested_svm_map(struct vcpu_svm *svm, u64 gpa, struct page **_page)
 
 	might_sleep();
 
-	page = gfn_to_page(svm->vcpu.kvm, gpa >> PAGE_SHIFT);
+	page = kvm_vcpu_gfn_to_page(&svm->vcpu, gpa >> PAGE_SHIFT);
 	if (is_error_page(page))
 		goto error;
 
@@ -2153,7 +2153,7 @@ static int nested_svm_intercept_ioio(struct vcpu_svm *svm)
 	mask = (0xf >> (4 - size)) << start_bit;
 	val = 0;
 
-	if (kvm_read_guest(svm->vcpu.kvm, gpa, &val, iopm_len))
+	if (kvm_vcpu_read_guest(&svm->vcpu, gpa, &val, iopm_len))
 		return NESTED_EXIT_DONE;
 
 	return (val & mask) ? NESTED_EXIT_DONE : NESTED_EXIT_HOST;
@@ -2178,7 +2178,7 @@ static int nested_svm_exit_handled_msr(struct vcpu_svm *svm)
 	/* Offset is in 32 bit units but need in 8 bit units */
 	offset *= 4;
 
-	if (kvm_read_guest(svm->vcpu.kvm, svm->nested.vmcb_msrpm + offset, &value, 4))
+	if (kvm_vcpu_read_guest(&svm->vcpu, svm->nested.vmcb_msrpm + offset, &value, 4))
 		return NESTED_EXIT_DONE;
 
 	return (value & mask) ? NESTED_EXIT_DONE : NESTED_EXIT_HOST;
@@ -2449,7 +2449,7 @@ static bool nested_svm_vmrun_msrpm(struct vcpu_svm *svm)
 		p      = msrpm_offsets[i];
 		offset = svm->nested.vmcb_msrpm + (p * 4);
 
-		if (kvm_read_guest(svm->vcpu.kvm, offset, &value, 4))
+		if (kvm_vcpu_read_guest(&svm->vcpu, offset, &value, 4))
 			return false;
 
 		svm->nested.msrpm[p] = svm->msrpm[p] | value;

arch/x86/kvm/vmx.c

@@ -786,7 +786,7 @@ static inline struct vmcs12 *get_vmcs12(struct kvm_vcpu *vcpu)
 
 static struct page *nested_get_page(struct kvm_vcpu *vcpu, gpa_t addr)
 {
-	struct page *page = gfn_to_page(vcpu->kvm, addr >> PAGE_SHIFT);
+	struct page *page = kvm_vcpu_gfn_to_page(vcpu, addr >> PAGE_SHIFT);
 	if (is_error_page(page))
 		return NULL;
 
@@ -7323,7 +7323,7 @@ static bool nested_vmx_exit_handled_io(struct kvm_vcpu *vcpu,
 		bitmap += (port & 0x7fff) / 8;
 
 		if (last_bitmap != bitmap)
-			if (kvm_read_guest(vcpu->kvm, bitmap, &b, 1))
+			if (kvm_vcpu_read_guest(vcpu, bitmap, &b, 1))
 				return true;
 		if (b & (1 << (port & 7)))
 			return true;
@@ -7367,7 +7367,7 @@ static bool nested_vmx_exit_handled_msr(struct kvm_vcpu *vcpu,
 	/* Then read the msr_index'th bit from this bitmap: */
 	if (msr_index < 1024*8) {
 		unsigned char b;
-		if (kvm_read_guest(vcpu->kvm, bitmap + msr_index/8, &b, 1))
+		if (kvm_vcpu_read_guest(vcpu, bitmap + msr_index/8, &b, 1))
 			return true;
 		return 1 & (b >> (msr_index & 7));
 	} else
@@ -7632,9 +7632,9 @@ static void vmx_disable_pml(struct vcpu_vmx *vmx)
 	vmcs_write32(SECONDARY_VM_EXEC_CONTROL, exec_control);
 }
 
-static void vmx_flush_pml_buffer(struct vcpu_vmx *vmx)
+static void vmx_flush_pml_buffer(struct kvm_vcpu *vcpu)
 {
-	struct kvm *kvm = vmx->vcpu.kvm;
+	struct vcpu_vmx *vmx = to_vmx(vcpu);
 	u64 *pml_buf;
 	u16 pml_idx;
 
@@ -7656,7 +7656,7 @@ static void vmx_flush_pml_buffer(struct vcpu_vmx *vmx)
 
 		gpa = pml_buf[pml_idx];
 		WARN_ON(gpa & (PAGE_SIZE - 1));
-		mark_page_dirty(kvm, gpa >> PAGE_SHIFT);
+		kvm_vcpu_mark_page_dirty(vcpu, gpa >> PAGE_SHIFT);
 	}
 
 	/* reset PML index */
@@ -7851,7 +7851,7 @@ static int vmx_handle_exit(struct kvm_vcpu *vcpu)
 	 * flushed already.
 	 */
 	if (enable_pml)
-		vmx_flush_pml_buffer(vmx);
+		vmx_flush_pml_buffer(vcpu);
 
 	/* If guest state is invalid, start emulating */
 	if (vmx->emulation_required)
@@ -9109,8 +9109,8 @@ static u32 nested_vmx_load_msr(struct kvm_vcpu *vcpu, u64 gpa, u32 count)
 
 	msr.host_initiated = false;
 	for (i = 0; i < count; i++) {
-		if (kvm_read_guest(vcpu->kvm, gpa + i * sizeof(e),
-				   &e, sizeof(e))) {
+		if (kvm_vcpu_read_guest(vcpu, gpa + i * sizeof(e),
+					&e, sizeof(e))) {
 			pr_warn_ratelimited(
 				"%s cannot read MSR entry (%u, 0x%08llx)\n",
 				__func__, i, gpa + i * sizeof(e));
@@ -9143,9 +9143,9 @@ static int nested_vmx_store_msr(struct kvm_vcpu *vcpu, u64 gpa, u32 count)
 
 	for (i = 0; i < count; i++) {
 		struct msr_data msr_info;
-		if (kvm_read_guest(vcpu->kvm,
-				   gpa + i * sizeof(e),
-				   &e, 2 * sizeof(u32))) {
+		if (kvm_vcpu_read_guest(vcpu,
+					gpa + i * sizeof(e),
+					&e, 2 * sizeof(u32))) {
 			pr_warn_ratelimited(
 				"%s cannot read MSR entry (%u, 0x%08llx)\n",
 				__func__, i, gpa + i * sizeof(e));
@@ -9165,10 +9165,10 @@ static int nested_vmx_store_msr(struct kvm_vcpu *vcpu, u64 gpa, u32 count)
 				__func__, i, e.index);
 			return -EINVAL;
 		}
-		if (kvm_write_guest(vcpu->kvm,
-				    gpa + i * sizeof(e) +
-					offsetof(struct vmx_msr_entry, value),
-				    &msr_info.data, sizeof(msr_info.data))) {
+		if (kvm_vcpu_write_guest(vcpu,
+					 gpa + i * sizeof(e) +
+					     offsetof(struct vmx_msr_entry, value),
+					 &msr_info.data, sizeof(msr_info.data))) {
 			pr_warn_ratelimited(
 				"%s cannot write MSR (%u, 0x%x, 0x%llx)\n",
 				__func__, i, e.index, msr_info.data);

arch/x86/kvm/x86.c

@@ -478,7 +478,7 @@ EXPORT_SYMBOL_GPL(kvm_require_dr);
 
 /*
  * This function will be used to read from the physical memory of the currently
- * running guest. The difference to kvm_read_guest_page is that this function
+ * running guest. The difference to kvm_vcpu_read_guest_page is that this function
  * can read from guest physical or from the guest's guest physical memory.
  */
 int kvm_read_guest_page_mmu(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu,
@@ -496,7 +496,7 @@ int kvm_read_guest_page_mmu(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu,
 
 	real_gfn = gpa_to_gfn(real_gfn);
 
-	return kvm_read_guest_page(vcpu->kvm, real_gfn, data, offset, len);
+	return kvm_vcpu_read_guest_page(vcpu, real_gfn, data, offset, len);
 }
 EXPORT_SYMBOL_GPL(kvm_read_guest_page_mmu);
 
@@ -2030,7 +2030,7 @@ static int xen_hvm_config(struct kvm_vcpu *vcpu, u64 data)
 		r = PTR_ERR(page);
 		goto out;
 	}
-	if (kvm_write_guest(kvm, page_addr, page, PAGE_SIZE))
+	if (kvm_vcpu_write_guest(vcpu, page_addr, page, PAGE_SIZE))
 		goto out_free;
 	r = 0;
 out_free:
@@ -2130,13 +2130,13 @@ static int set_msr_hyperv(struct kvm_vcpu *vcpu, u32 msr, u64 data)
 			break;
 		}
 		gfn = data >> HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_SHIFT;
-		addr = gfn_to_hva(vcpu->kvm, gfn);
+		addr = kvm_vcpu_gfn_to_hva(vcpu, gfn);
 		if (kvm_is_error_hva(addr))
 			return 1;
 		if (__clear_user((void __user *)addr, PAGE_SIZE))
 			return 1;
 		vcpu->arch.hv_vapic = data;
-		mark_page_dirty(vcpu->kvm, gfn);
+		kvm_vcpu_mark_page_dirty(vcpu, gfn);
 		if (kvm_lapic_enable_pv_eoi(vcpu, gfn_to_gpa(gfn) | KVM_MSR_ENABLED))
 			return 1;
 		break;
@@ -4425,8 +4425,8 @@ static int kvm_read_guest_virt_helper(gva_t addr, void *val, unsigned int bytes,
 
 		if (gpa == UNMAPPED_GVA)
 			return X86EMUL_PROPAGATE_FAULT;
-		ret = kvm_read_guest_page(vcpu->kvm, gpa >> PAGE_SHIFT, data,
-					  offset, toread);
+		ret = kvm_vcpu_read_guest_page(vcpu, gpa >> PAGE_SHIFT, data,
+					       offset, toread);
 		if (ret < 0) {
 			r = X86EMUL_IO_NEEDED;
 			goto out;
@@ -4459,8 +4459,8 @@ static int kvm_fetch_guest_virt(struct x86_emulate_ctxt *ctxt,
 	offset = addr & (PAGE_SIZE-1);
 	if (WARN_ON(offset + bytes > PAGE_SIZE))
 		bytes = (unsigned)PAGE_SIZE - offset;
-	ret = kvm_read_guest_page(vcpu->kvm, gpa >> PAGE_SHIFT, val,
-				  offset, bytes);
+	ret = kvm_vcpu_read_guest_page(vcpu, gpa >> PAGE_SHIFT, val,
+				       offset, bytes);
 	if (unlikely(ret < 0))
 		return X86EMUL_IO_NEEDED;
 
@@ -4506,7 +4506,7 @@ int kvm_write_guest_virt_system(struct x86_emulate_ctxt *ctxt,
 
 		if (gpa == UNMAPPED_GVA)
 			return X86EMUL_PROPAGATE_FAULT;
-		ret = kvm_write_guest(vcpu->kvm, gpa, data, towrite);
+		ret = kvm_vcpu_write_guest(vcpu, gpa, data, towrite);
 		if (ret < 0) {
 			r = X86EMUL_IO_NEEDED;
 			goto out;
@@ -4559,7 +4559,7 @@ int emulator_write_phys(struct kvm_vcpu *vcpu, gpa_t gpa,
 {
 	int ret;
 
-	ret = kvm_write_guest(vcpu->kvm, gpa, val, bytes);
+	ret = kvm_vcpu_write_guest(vcpu, gpa, val, bytes);
 	if (ret < 0)
 		return 0;
 	kvm_mmu_pte_write(vcpu, gpa, val, bytes);
@@ -4593,7 +4593,7 @@ static int read_prepare(struct kvm_vcpu *vcpu, void *val, int bytes)
 static int read_emulate(struct kvm_vcpu *vcpu, gpa_t gpa,
 			void *val, int bytes)
 {
-	return !kvm_read_guest(vcpu->kvm, gpa, val, bytes);
+	return !kvm_vcpu_read_guest(vcpu, gpa, val, bytes);
 }
 
 static int write_emulate(struct kvm_vcpu *vcpu, gpa_t gpa,
@@ -4791,7 +4791,7 @@ static int emulator_cmpxchg_emulated(struct x86_emulate_ctxt *ctxt,
 	if (((gpa + bytes - 1) & PAGE_MASK) != (gpa & PAGE_MASK))
 		goto emul_write;
 
-	page = gfn_to_page(vcpu->kvm, gpa >> PAGE_SHIFT);
+	page = kvm_vcpu_gfn_to_page(vcpu, gpa >> PAGE_SHIFT);
 	if (is_error_page(page))
 		goto emul_write;
 
@@ -4819,7 +4819,7 @@ static int emulator_cmpxchg_emulated(struct x86_emulate_ctxt *ctxt,
 	if (!exchanged)
 		return X86EMUL_CMPXCHG_FAILED;
 
-	mark_page_dirty(vcpu->kvm, gpa >> PAGE_SHIFT);
+	kvm_vcpu_mark_page_dirty(vcpu, gpa >> PAGE_SHIFT);
 	kvm_mmu_pte_write(vcpu, gpa, new, bytes);
 
 	return X86EMUL_CONTINUE;
@@ -6570,7 +6570,7 @@ static void process_smi(struct kvm_vcpu *vcpu)
 	else
 		process_smi_save_state_32(vcpu, buf);
 
-	kvm_write_guest(vcpu->kvm, vcpu->arch.smbase + 0xfe00, buf, sizeof(buf));
+	kvm_vcpu_write_guest(vcpu, vcpu->arch.smbase + 0xfe00, buf, sizeof(buf));
 
 	if (kvm_x86_ops->get_nmi_mask(vcpu))
 		vcpu->arch.hflags |= HF_SMM_INSIDE_NMI_MASK;
@@ -8075,7 +8075,7 @@ void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslots *slots)
 	 * memslots->generation has been incremented.
 	 * mmio generation may have reached its maximum value.
 	 */
-	kvm_mmu_invalidate_mmio_sptes(kvm);
+	kvm_mmu_invalidate_mmio_sptes(kvm, slots);
 }
 
 int kvm_arch_prepare_memory_region(struct kvm *kvm,