[RFC PATCH 25/42] KVM: x86/mmu: Abstract "struct kvm_mmu_common" from "struct kvm_mmu"

From: Yan Zhao
Date: Sat Dec 02 2023 - 04:57:05 EST

Abstract "struct kvm_mmu_common" and move 3 common fields "root, root_role,
shadow_zero_check" from "struct kvm_mmu" to "struct kvm_mmu_common".

"struct kvm_mmu_common" is a preparation for later patches to introduce
"struct kvm_exported_tdp_mmu" which is used by KVM to export TDP.

Opportunistically, a new param "struct kvm_mmu_common *mmu_common" is added
to make_spte(), so that is_rsvd_spte() in make_spte() can use
&mmu_common->shadow_zero_check directly without asking it from vcpu.

No functional changes expected.

Signed-off-by: Yan Zhao <yan.y.zhao@xxxxxxxxx>
---
arch/x86/include/asm/kvm_host.h | 22 +++--
arch/x86/kvm/mmu.h | 6 +-
arch/x86/kvm/mmu/mmu.c | 168 ++++++++++++++++----------------
arch/x86/kvm/mmu/mmu_internal.h | 2 +-
arch/x86/kvm/mmu/paging_tmpl.h | 9 +-
arch/x86/kvm/mmu/spte.c | 7 +-
arch/x86/kvm/mmu/spte.h | 3 +-
arch/x86/kvm/mmu/tdp_mmu.c | 13 +--
arch/x86/kvm/svm/svm.c | 2 +-
arch/x86/kvm/vmx/nested.c | 2 +-
arch/x86/kvm/vmx/vmx.c | 4 +-
arch/x86/kvm/x86.c | 8 +-
12 files changed, 127 insertions(+), 119 deletions(-)

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index d7036982332e3..16e01eee34a99 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -437,12 +437,25 @@ struct kvm_mmu_root_info {
struct kvm_mmu_page;
struct kvm_page_fault;

+struct kvm_mmu_common {
+ struct kvm_mmu_root_info root;
+ union kvm_mmu_page_role root_role;
+
+ /*
+ * check zero bits on shadow page table entries, these
+ * bits include not only hardware reserved bits but also
+ * the bits spte never used.
+ */
+ struct rsvd_bits_validate shadow_zero_check;
+};
+
/*
* x86 supports 4 paging modes (5-level 64-bit, 4-level 64-bit, 3-level 32-bit,
* and 2-level 32-bit). The kvm_mmu structure abstracts the details of the
* current mmu mode.
*/
struct kvm_mmu {
+ struct kvm_mmu_common common;
unsigned long (*get_guest_pgd)(struct kvm_vcpu *vcpu);
u64 (*get_pdptr)(struct kvm_vcpu *vcpu, int index);
int (*page_fault)(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault);
@@ -453,9 +466,7 @@ struct kvm_mmu {
struct x86_exception *exception);
int (*sync_spte)(struct kvm_vcpu *vcpu,
struct kvm_mmu_page *sp, int i);
- struct kvm_mmu_root_info root;
union kvm_cpu_role cpu_role;
- union kvm_mmu_page_role root_role;

/*
* The pkru_mask indicates if protection key checks are needed. It
@@ -478,13 +489,6 @@ struct kvm_mmu {
u64 *pml4_root;
u64 *pml5_root;

- /*
- * check zero bits on shadow page table entries, these
- * bits include not only hardware reserved bits but also
- * the bits spte never used.
- */
- struct rsvd_bits_validate shadow_zero_check;
-
struct rsvd_bits_validate guest_rsvd_check;

u64 pdptrs[4]; /* pae */
diff --git a/arch/x86/kvm/mmu.h b/arch/x86/kvm/mmu.h
index bb8c86eefac04..e9631cc23a594 100644
--- a/arch/x86/kvm/mmu.h
+++ b/arch/x86/kvm/mmu.h
@@ -126,7 +126,7 @@ void kvm_mmu_track_write(struct kvm_vcpu *vcpu, gpa_t gpa, const u8 *new,

static inline int kvm_mmu_reload(struct kvm_vcpu *vcpu)
{
- if (likely(vcpu->arch.mmu->root.hpa != INVALID_PAGE))
+ if (likely(vcpu->arch.mmu->common.root.hpa != INVALID_PAGE))
return 0;

return kvm_mmu_load(vcpu);
@@ -148,13 +148,13 @@ static inline unsigned long kvm_get_active_pcid(struct kvm_vcpu *vcpu)

static inline void kvm_mmu_load_pgd(struct kvm_vcpu *vcpu)
{
- u64 root_hpa = vcpu->arch.mmu->root.hpa;
+ u64 root_hpa = vcpu->arch.mmu->common.root.hpa;

if (!VALID_PAGE(root_hpa))
return;

static_call(kvm_x86_load_mmu_pgd)(vcpu, root_hpa,
- vcpu->arch.mmu->root_role.level);
+ vcpu->arch.mmu->common.root_role.level);
}

static inline void kvm_mmu_refresh_passthrough_bits(struct kvm_vcpu *vcpu,
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 69af78e508197..cfeb066f38687 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -643,7 +643,7 @@ static bool mmu_spte_age(u64 *sptep)

static inline bool is_tdp_mmu_active(struct kvm_vcpu *vcpu)
{
- return tdp_mmu_enabled && vcpu->arch.mmu->root_role.direct;
+ return tdp_mmu_enabled && vcpu->arch.mmu->common.root_role.direct;
}

static void walk_shadow_page_lockless_begin(struct kvm_vcpu *vcpu)
@@ -1911,7 +1911,7 @@ static bool sp_has_gptes(struct kvm_mmu_page *sp)

static bool kvm_sync_page_check(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp)
{
- union kvm_mmu_page_role root_role = vcpu->arch.mmu->root_role;
+ union kvm_mmu_page_role root_role = vcpu->arch.mmu->common.root_role;

/*
* Ignore various flags when verifying that it's safe to sync a shadow
@@ -2363,11 +2363,11 @@ static void shadow_walk_init_using_root(struct kvm_shadow_walk_iterator *iterato
{
iterator->addr = addr;
iterator->shadow_addr = root;
- iterator->level = vcpu->arch.mmu->root_role.level;
+ iterator->level = vcpu->arch.mmu->common.root_role.level;

if (iterator->level >= PT64_ROOT_4LEVEL &&
vcpu->arch.mmu->cpu_role.base.level < PT64_ROOT_4LEVEL &&
- !vcpu->arch.mmu->root_role.direct)
+ !vcpu->arch.mmu->common.root_role.direct)
iterator->level = PT32E_ROOT_LEVEL;

if (iterator->level == PT32E_ROOT_LEVEL) {
@@ -2375,7 +2375,7 @@ static void shadow_walk_init_using_root(struct kvm_shadow_walk_iterator *iterato
* prev_root is currently only used for 64-bit hosts. So only
* the active root_hpa is valid here.
*/
- BUG_ON(root != vcpu->arch.mmu->root.hpa);
+ BUG_ON(root != vcpu->arch.mmu->common.root.hpa);

iterator->shadow_addr
= vcpu->arch.mmu->pae_root[(addr >> 30) & 3];
@@ -2389,7 +2389,7 @@ static void shadow_walk_init_using_root(struct kvm_shadow_walk_iterator *iterato
static void shadow_walk_init(struct kvm_shadow_walk_iterator *iterator,
struct kvm_vcpu *vcpu, u64 addr)
{
- shadow_walk_init_using_root(iterator, vcpu, vcpu->arch.mmu->root.hpa,
+ shadow_walk_init_using_root(iterator, vcpu, vcpu->arch.mmu->common.root.hpa,
addr);
}

@@ -2771,7 +2771,7 @@ static int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva)
gpa_t gpa;
int r;

- if (vcpu->arch.mmu->root_role.direct)
+ if (vcpu->arch.mmu->common.root_role.direct)
return 0;

gpa = kvm_mmu_gva_to_gpa_read(vcpu, gva, NULL);
@@ -2939,7 +2939,8 @@ static int mmu_set_spte(struct kvm_vcpu *vcpu, struct kvm_memory_slot *slot,
was_rmapped = 1;
}

- wrprot = make_spte(vcpu, sp, slot, pte_access, gfn, pfn, *sptep, prefetch,
+ wrprot = make_spte(vcpu, &vcpu->arch.mmu->common,
+ sp, slot, pte_access, gfn, pfn, *sptep, prefetch,
true, host_writable, &spte);

if (*sptep == spte) {
@@ -3577,7 +3578,7 @@ void kvm_mmu_free_roots(struct kvm *kvm, struct kvm_mmu *mmu,

/* Before acquiring the MMU lock, see if we need to do any real work. */
free_active_root = (roots_to_free & KVM_MMU_ROOT_CURRENT)
- && VALID_PAGE(mmu->root.hpa);
+ && VALID_PAGE(mmu->common.root.hpa);

if (!free_active_root) {
for (i = 0; i < KVM_MMU_NUM_PREV_ROOTS; i++)
@@ -3597,10 +3598,10 @@ void kvm_mmu_free_roots(struct kvm *kvm, struct kvm_mmu *mmu,
&invalid_list);

if (free_active_root) {
- if (kvm_mmu_is_dummy_root(mmu->root.hpa)) {
+ if (kvm_mmu_is_dummy_root(mmu->common.root.hpa)) {
/* Nothing to cleanup for dummy roots. */
- } else if (root_to_sp(mmu->root.hpa)) {
- mmu_free_root_page(kvm, &mmu->root.hpa, &invalid_list);
+ } else if (root_to_sp(mmu->common.root.hpa)) {
+ mmu_free_root_page(kvm, &mmu->common.root.hpa, &invalid_list);
} else if (mmu->pae_root) {
for (i = 0; i < 4; ++i) {
if (!IS_VALID_PAE_ROOT(mmu->pae_root[i]))
@@ -3611,8 +3612,8 @@ void kvm_mmu_free_roots(struct kvm *kvm, struct kvm_mmu *mmu,
mmu->pae_root[i] = INVALID_PAE_ROOT;
}
}
- mmu->root.hpa = INVALID_PAGE;
- mmu->root.pgd = 0;
+ mmu->common.root.hpa = INVALID_PAGE;
+ mmu->common.root.pgd = 0;
}

kvm_mmu_commit_zap_page(kvm, &invalid_list);
@@ -3631,7 +3632,7 @@ void kvm_mmu_free_guest_mode_roots(struct kvm *kvm, struct kvm_mmu *mmu)
* This should not be called while L2 is active, L2 can't invalidate
* _only_ its own roots, e.g. INVVPID unconditionally exits.
*/
- WARN_ON_ONCE(mmu->root_role.guest_mode);
+ WARN_ON_ONCE(mmu->common.root_role.guest_mode);

for (i = 0; i < KVM_MMU_NUM_PREV_ROOTS; i++) {
root_hpa = mmu->prev_roots[i].hpa;
@@ -3650,7 +3651,7 @@ EXPORT_SYMBOL_GPL(kvm_mmu_free_guest_mode_roots);
static hpa_t mmu_alloc_root(struct kvm_vcpu *vcpu, gfn_t gfn, int quadrant,
u8 level)
{
- union kvm_mmu_page_role role = vcpu->arch.mmu->root_role;
+ union kvm_mmu_page_role role = vcpu->arch.mmu->common.root_role;
struct kvm_mmu_page *sp;

role.level = level;
@@ -3668,7 +3669,7 @@ static hpa_t mmu_alloc_root(struct kvm_vcpu *vcpu, gfn_t gfn, int quadrant,
static int mmu_alloc_direct_roots(struct kvm_vcpu *vcpu)
{
struct kvm_mmu *mmu = vcpu->arch.mmu;
- u8 shadow_root_level = mmu->root_role.level;
+ u8 shadow_root_level = mmu->common.root_role.level;
hpa_t root;
unsigned i;
int r;
@@ -3680,10 +3681,10 @@ static int mmu_alloc_direct_roots(struct kvm_vcpu *vcpu)

if (tdp_mmu_enabled) {
root = kvm_tdp_mmu_get_vcpu_root_hpa(vcpu);
- mmu->root.hpa = root;
+ mmu->common.root.hpa = root;
} else if (shadow_root_level >= PT64_ROOT_4LEVEL) {
root = mmu_alloc_root(vcpu, 0, 0, shadow_root_level);
- mmu->root.hpa = root;
+ mmu->common.root.hpa = root;
} else if (shadow_root_level == PT32E_ROOT_LEVEL) {
if (WARN_ON_ONCE(!mmu->pae_root)) {
r = -EIO;
@@ -3698,7 +3699,7 @@ static int mmu_alloc_direct_roots(struct kvm_vcpu *vcpu)
mmu->pae_root[i] = root | PT_PRESENT_MASK |
shadow_me_value;
}
- mmu->root.hpa = __pa(mmu->pae_root);
+ mmu->common.root.hpa = __pa(mmu->pae_root);
} else {
WARN_ONCE(1, "Bad TDP root level = %d\n", shadow_root_level);
r = -EIO;
@@ -3706,7 +3707,7 @@ static int mmu_alloc_direct_roots(struct kvm_vcpu *vcpu)
}

/* root.pgd is ignored for direct MMUs. */
- mmu->root.pgd = 0;
+ mmu->common.root.pgd = 0;
out_unlock:
write_unlock(&vcpu->kvm->mmu_lock);
return r;
@@ -3785,7 +3786,7 @@ static int mmu_alloc_shadow_roots(struct kvm_vcpu *vcpu)
root_gfn = root_pgd >> PAGE_SHIFT;

if (!kvm_vcpu_is_visible_gfn(vcpu, root_gfn)) {
- mmu->root.hpa = kvm_mmu_get_dummy_root();
+ mmu->common.root.hpa = kvm_mmu_get_dummy_root();
return 0;
}

@@ -3819,8 +3820,8 @@ static int mmu_alloc_shadow_roots(struct kvm_vcpu *vcpu)
*/
if (mmu->cpu_role.base.level >= PT64_ROOT_4LEVEL) {
root = mmu_alloc_root(vcpu, root_gfn, 0,
- mmu->root_role.level);
- mmu->root.hpa = root;
+ mmu->common.root_role.level);
+ mmu->common.root.hpa = root;
goto set_root_pgd;
}

@@ -3835,7 +3836,7 @@ static int mmu_alloc_shadow_roots(struct kvm_vcpu *vcpu)
* the shadow page table may be a PAE or a long mode page table.
*/
pm_mask = PT_PRESENT_MASK | shadow_me_value;
- if (mmu->root_role.level >= PT64_ROOT_4LEVEL) {
+ if (mmu->common.root_role.level >= PT64_ROOT_4LEVEL) {
pm_mask |= PT_ACCESSED_MASK | PT_WRITABLE_MASK | PT_USER_MASK;

if (WARN_ON_ONCE(!mmu->pml4_root)) {
@@ -3844,7 +3845,7 @@ static int mmu_alloc_shadow_roots(struct kvm_vcpu *vcpu)
}
mmu->pml4_root[0] = __pa(mmu->pae_root) | pm_mask;

- if (mmu->root_role.level == PT64_ROOT_5LEVEL) {
+ if (mmu->common.root_role.level == PT64_ROOT_5LEVEL) {
if (WARN_ON_ONCE(!mmu->pml5_root)) {
r = -EIO;
goto out_unlock;
@@ -3876,15 +3877,15 @@ static int mmu_alloc_shadow_roots(struct kvm_vcpu *vcpu)
mmu->pae_root[i] = root | pm_mask;
}

- if (mmu->root_role.level == PT64_ROOT_5LEVEL)
- mmu->root.hpa = __pa(mmu->pml5_root);
- else if (mmu->root_role.level == PT64_ROOT_4LEVEL)
- mmu->root.hpa = __pa(mmu->pml4_root);
+ if (mmu->common.root_role.level == PT64_ROOT_5LEVEL)
+ mmu->common.root.hpa = __pa(mmu->pml5_root);
+ else if (mmu->common.root_role.level == PT64_ROOT_4LEVEL)
+ mmu->common.root.hpa = __pa(mmu->pml4_root);
else
- mmu->root.hpa = __pa(mmu->pae_root);
+ mmu->common.root.hpa = __pa(mmu->pae_root);

set_root_pgd:
- mmu->root.pgd = root_pgd;
+ mmu->common.root.pgd = root_pgd;
out_unlock:
write_unlock(&vcpu->kvm->mmu_lock);

@@ -3894,7 +3895,7 @@ static int mmu_alloc_shadow_roots(struct kvm_vcpu *vcpu)
static int mmu_alloc_special_roots(struct kvm_vcpu *vcpu)
{
struct kvm_mmu *mmu = vcpu->arch.mmu;
- bool need_pml5 = mmu->root_role.level > PT64_ROOT_4LEVEL;
+ bool need_pml5 = mmu->common.root_role.level > PT64_ROOT_4LEVEL;
u64 *pml5_root = NULL;
u64 *pml4_root = NULL;
u64 *pae_root;
@@ -3905,9 +3906,9 @@ static int mmu_alloc_special_roots(struct kvm_vcpu *vcpu)
* equivalent level in the guest's NPT to shadow. Allocate the tables
* on demand, as running a 32-bit L1 VMM on 64-bit KVM is very rare.
*/
- if (mmu->root_role.direct ||
+ if (mmu->common.root_role.direct ||
mmu->cpu_role.base.level >= PT64_ROOT_4LEVEL ||
- mmu->root_role.level < PT64_ROOT_4LEVEL)
+ mmu->common.root_role.level < PT64_ROOT_4LEVEL)
return 0;

/*
@@ -4003,16 +4004,16 @@ void kvm_mmu_sync_roots(struct kvm_vcpu *vcpu)
int i;
struct kvm_mmu_page *sp;

- if (vcpu->arch.mmu->root_role.direct)
+ if (vcpu->arch.mmu->common.root_role.direct)
return;

- if (!VALID_PAGE(vcpu->arch.mmu->root.hpa))
+ if (!VALID_PAGE(vcpu->arch.mmu->common.root.hpa))
return;

vcpu_clear_mmio_info(vcpu, MMIO_GVA_ANY);

if (vcpu->arch.mmu->cpu_role.base.level >= PT64_ROOT_4LEVEL) {
- hpa_t root = vcpu->arch.mmu->root.hpa;
+ hpa_t root = vcpu->arch.mmu->common.root.hpa;

if (!is_unsync_root(root))
return;
@@ -4134,7 +4135,7 @@ static bool get_mmio_spte(struct kvm_vcpu *vcpu, u64 addr, u64 *sptep)
if (!is_shadow_present_pte(sptes[leaf]))
leaf++;

- rsvd_check = &vcpu->arch.mmu->shadow_zero_check;
+ rsvd_check = &vcpu->arch.mmu->common.shadow_zero_check;

for (level = root; level >= leaf; level--)
reserved |= is_rsvd_spte(rsvd_check, sptes[level], level);
@@ -4233,7 +4234,7 @@ static bool kvm_arch_setup_async_pf(struct kvm_vcpu *vcpu, gpa_t cr2_or_gpa,

arch.token = alloc_apf_token(vcpu);
arch.gfn = gfn;
- arch.direct_map = vcpu->arch.mmu->root_role.direct;
+ arch.direct_map = vcpu->arch.mmu->common.root_role.direct;
arch.cr3 = kvm_mmu_get_guest_pgd(vcpu, vcpu->arch.mmu);

return kvm_setup_async_pf(vcpu, cr2_or_gpa,
@@ -4244,7 +4245,7 @@ void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu, struct kvm_async_pf *work)
{
int r;

- if ((vcpu->arch.mmu->root_role.direct != work->arch.direct_map) ||
+ if ((vcpu->arch.mmu->common.root_role.direct != work->arch.direct_map) ||
work->wakeup_all)
return;

@@ -4252,7 +4253,7 @@ void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu, struct kvm_async_pf *work)
if (unlikely(r))
return;

- if (!vcpu->arch.mmu->root_role.direct &&
+ if (!vcpu->arch.mmu->common.root_role.direct &&
work->arch.cr3 != kvm_mmu_get_guest_pgd(vcpu, vcpu->arch.mmu))
return;

@@ -4348,7 +4349,7 @@ static int kvm_faultin_pfn(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault,
static bool is_page_fault_stale(struct kvm_vcpu *vcpu,
struct kvm_page_fault *fault)
{
- struct kvm_mmu_page *sp = root_to_sp(vcpu->arch.mmu->root.hpa);
+ struct kvm_mmu_page *sp = root_to_sp(vcpu->arch.mmu->common.root.hpa);

/* Special roots, e.g. pae_root, are not backed by shadow pages. */
if (sp && is_obsolete_sp(vcpu->kvm, sp))
@@ -4374,7 +4375,7 @@ static int direct_page_fault(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault
int r;

/* Dummy roots are used only for shadowing bad guest roots. */
- if (WARN_ON_ONCE(kvm_mmu_is_dummy_root(vcpu->arch.mmu->root.hpa)))
+ if (WARN_ON_ONCE(kvm_mmu_is_dummy_root(vcpu->arch.mmu->common.root.hpa)))
return RET_PF_RETRY;

if (page_fault_handle_page_track(vcpu, fault))
@@ -4555,9 +4556,9 @@ static inline bool is_root_usable(struct kvm_mmu_root_info *root, gpa_t pgd,
/*
* Find out if a previously cached root matching the new pgd/role is available,
* and insert the current root as the MRU in the cache.
- * If a matching root is found, it is assigned to kvm_mmu->root and
+ * If a matching root is found, it is assigned to kvm_mmu->common.root and
* true is returned.
- * If no match is found, kvm_mmu->root is left invalid, the LRU root is
+ * If no match is found, kvm_mmu->common.root is left invalid, the LRU root is
* evicted to make room for the current root, and false is returned.
*/
static bool cached_root_find_and_keep_current(struct kvm *kvm, struct kvm_mmu *mmu,
@@ -4566,7 +4567,7 @@ static bool cached_root_find_and_keep_current(struct kvm *kvm, struct kvm_mmu *m
{
uint i;

- if (is_root_usable(&mmu->root, new_pgd, new_role))
+ if (is_root_usable(&mmu->common.root, new_pgd, new_role))
return true;

for (i = 0; i < KVM_MMU_NUM_PREV_ROOTS; i++) {
@@ -4578,8 +4579,8 @@ static bool cached_root_find_and_keep_current(struct kvm *kvm, struct kvm_mmu *m
* 2 C 0 1 3
* 3 C 0 1 2 (on exit from the loop)
*/
- swap(mmu->root, mmu->prev_roots[i]);
- if (is_root_usable(&mmu->root, new_pgd, new_role))
+ swap(mmu->common.root, mmu->prev_roots[i]);
+ if (is_root_usable(&mmu->common.root, new_pgd, new_role))
return true;
}

@@ -4589,10 +4590,11 @@ static bool cached_root_find_and_keep_current(struct kvm *kvm, struct kvm_mmu *m

/*
* Find out if a previously cached root matching the new pgd/role is available.
- * On entry, mmu->root is invalid.
- * If a matching root is found, it is assigned to kvm_mmu->root, the LRU entry
- * of the cache becomes invalid, and true is returned.
- * If no match is found, kvm_mmu->root is left invalid and false is returned.
+ * On entry, mmu->common.root is invalid.
+ * If a matching root is found, it is assigned to kvm_mmu->common.root, the LRU
+ * entry of the cache becomes invalid, and true is returned.
+ * If no match is found, kvm_mmu->common.root is left invalid and false is
+ * returned.
*/
static bool cached_root_find_without_current(struct kvm *kvm, struct kvm_mmu *mmu,
gpa_t new_pgd,
@@ -4607,7 +4609,7 @@ static bool cached_root_find_without_current(struct kvm *kvm, struct kvm_mmu *mm
return false;

hit:
- swap(mmu->root, mmu->prev_roots[i]);
+ swap(mmu->common.root, mmu->prev_roots[i]);
/* Bubble up the remaining roots. */
for (; i < KVM_MMU_NUM_PREV_ROOTS - 1; i++)
mmu->prev_roots[i] = mmu->prev_roots[i + 1];
@@ -4622,10 +4624,10 @@ static bool fast_pgd_switch(struct kvm *kvm, struct kvm_mmu *mmu,
* Limit reuse to 64-bit hosts+VMs without "special" roots in order to
* avoid having to deal with PDPTEs and other complexities.
*/
- if (VALID_PAGE(mmu->root.hpa) && !root_to_sp(mmu->root.hpa))
+ if (VALID_PAGE(mmu->common.root.hpa) && !root_to_sp(mmu->common.root.hpa))
kvm_mmu_free_roots(kvm, mmu, KVM_MMU_ROOT_CURRENT);

- if (VALID_PAGE(mmu->root.hpa))
+ if (VALID_PAGE(mmu->common.root.hpa))
return cached_root_find_and_keep_current(kvm, mmu, new_pgd, new_role);
else
return cached_root_find_without_current(kvm, mmu, new_pgd, new_role);
@@ -4634,7 +4636,7 @@ static bool fast_pgd_switch(struct kvm *kvm, struct kvm_mmu *mmu,
void kvm_mmu_new_pgd(struct kvm_vcpu *vcpu, gpa_t new_pgd)
{
struct kvm_mmu *mmu = vcpu->arch.mmu;
- union kvm_mmu_page_role new_role = mmu->root_role;
+ union kvm_mmu_page_role new_role = mmu->common.root_role;

/*
* Return immediately if no usable root was found, kvm_mmu_reload()
@@ -4669,7 +4671,7 @@ void kvm_mmu_new_pgd(struct kvm_vcpu *vcpu, gpa_t new_pgd)
* count. Otherwise, clear the write flooding count.
*/
if (!new_role.direct) {
- struct kvm_mmu_page *sp = root_to_sp(vcpu->arch.mmu->root.hpa);
+ struct kvm_mmu_page *sp = root_to_sp(vcpu->arch.mmu->common.root.hpa);

if (!WARN_ON_ONCE(!sp))
__clear_sp_write_flooding_count(sp);
@@ -4863,7 +4865,7 @@ static inline u64 reserved_hpa_bits(void)
* follow the features in guest.
*/
static void reset_shadow_zero_bits_mask(struct kvm_vcpu *vcpu,
- struct kvm_mmu *context)
+ struct kvm_mmu_common *context)
{
/* @amd adds a check on bit of SPTEs, which KVM shouldn't use anyways. */
bool is_amd = true;
@@ -4909,7 +4911,7 @@ static inline bool boot_cpu_is_amd(void)
* the direct page table on host, use as much mmu features as
* possible, however, kvm currently does not do execution-protection.
*/
-static void reset_tdp_shadow_zero_bits_mask(struct kvm_mmu *context)
+static void reset_tdp_shadow_zero_bits_mask(struct kvm_mmu_common *context)
{
struct rsvd_bits_validate *shadow_zero_check;
int i;
@@ -4947,7 +4949,7 @@ static void reset_tdp_shadow_zero_bits_mask(struct kvm_mmu *context)
* is the shadow page table for intel nested guest.
*/
static void
-reset_ept_shadow_zero_bits_mask(struct kvm_mmu *context, bool execonly)
+reset_ept_shadow_zero_bits_mask(struct kvm_mmu_common *context, bool execonly)
{
__reset_rsvds_bits_mask_ept(&context->shadow_zero_check,
reserved_hpa_bits(), execonly,
@@ -5223,11 +5225,11 @@ static void init_kvm_tdp_mmu(struct kvm_vcpu *vcpu,
union kvm_mmu_page_role root_role = kvm_calc_tdp_mmu_root_page_role(vcpu, cpu_role);

if (cpu_role.as_u64 == context->cpu_role.as_u64 &&
- root_role.word == context->root_role.word)
+ root_role.word == context->common.root_role.word)
return;

context->cpu_role.as_u64 = cpu_role.as_u64;
- context->root_role.word = root_role.word;
+ context->common.root_role.word = root_role.word;
context->page_fault = kvm_tdp_page_fault;
context->sync_spte = NULL;
context->get_guest_pgd = get_guest_cr3;
@@ -5242,7 +5244,7 @@ static void init_kvm_tdp_mmu(struct kvm_vcpu *vcpu,
context->gva_to_gpa = paging32_gva_to_gpa;

reset_guest_paging_metadata(vcpu, context);
- reset_tdp_shadow_zero_bits_mask(context);
+ reset_tdp_shadow_zero_bits_mask(&context->common);
}

static void shadow_mmu_init_context(struct kvm_vcpu *vcpu, struct kvm_mmu *context,
@@ -5250,11 +5252,11 @@ static void shadow_mmu_init_context(struct kvm_vcpu *vcpu, struct kvm_mmu *conte
union kvm_mmu_page_role root_role)
{
if (cpu_role.as_u64 == context->cpu_role.as_u64 &&
- root_role.word == context->root_role.word)
+ root_role.word == context->common.root_role.word)
return;

context->cpu_role.as_u64 = cpu_role.as_u64;
- context->root_role.word = root_role.word;
+ context->common.root_role.word = root_role.word;

if (!is_cr0_pg(context))
nonpaging_init_context(context);
@@ -5264,7 +5266,7 @@ static void shadow_mmu_init_context(struct kvm_vcpu *vcpu, struct kvm_mmu *conte
paging32_init_context(context);

reset_guest_paging_metadata(vcpu, context);
- reset_shadow_zero_bits_mask(vcpu, context);
+ reset_shadow_zero_bits_mask(vcpu, &context->common);
}

static void kvm_init_shadow_mmu(struct kvm_vcpu *vcpu,
@@ -5356,7 +5358,7 @@ void kvm_init_shadow_ept_mmu(struct kvm_vcpu *vcpu, bool execonly,
if (new_mode.as_u64 != context->cpu_role.as_u64) {
/* EPT, and thus nested EPT, does not consume CR0, CR4, nor EFER. */
context->cpu_role.as_u64 = new_mode.as_u64;
- context->root_role.word = new_mode.base.word;
+ context->common.root_role.word = new_mode.base.word;

context->page_fault = ept_page_fault;
context->gva_to_gpa = ept_gva_to_gpa;
@@ -5365,7 +5367,7 @@ void kvm_init_shadow_ept_mmu(struct kvm_vcpu *vcpu, bool execonly,
update_permission_bitmask(context, true);
context->pkru_mask = 0;
reset_rsvds_bits_mask_ept(vcpu, context, execonly, huge_page_level);
- reset_ept_shadow_zero_bits_mask(context, execonly);
+ reset_ept_shadow_zero_bits_mask(&context->common, execonly);
}

kvm_mmu_new_pgd(vcpu, new_eptp);
@@ -5451,9 +5453,9 @@ void kvm_mmu_after_set_cpuid(struct kvm_vcpu *vcpu)
* that problem is swept under the rug; KVM's CPUID API is horrific and
* it's all but impossible to solve it without introducing a new API.
*/
- vcpu->arch.root_mmu.root_role.word = 0;
- vcpu->arch.guest_mmu.root_role.word = 0;
- vcpu->arch.nested_mmu.root_role.word = 0;
+ vcpu->arch.root_mmu.common.root_role.word = 0;
+ vcpu->arch.guest_mmu.common.root_role.word = 0;
+ vcpu->arch.nested_mmu.common.root_role.word = 0;
vcpu->arch.root_mmu.cpu_role.ext.valid = 0;
vcpu->arch.guest_mmu.cpu_role.ext.valid = 0;
vcpu->arch.nested_mmu.cpu_role.ext.valid = 0;
@@ -5477,13 +5479,13 @@ int kvm_mmu_load(struct kvm_vcpu *vcpu)
{
int r;

- r = mmu_topup_memory_caches(vcpu, !vcpu->arch.mmu->root_role.direct);
+ r = mmu_topup_memory_caches(vcpu, !vcpu->arch.mmu->common.root_role.direct);
if (r)
goto out;
r = mmu_alloc_special_roots(vcpu);
if (r)
goto out;
- if (vcpu->arch.mmu->root_role.direct)
+ if (vcpu->arch.mmu->common.root_role.direct)
r = mmu_alloc_direct_roots(vcpu);
else
r = mmu_alloc_shadow_roots(vcpu);
@@ -5511,9 +5513,9 @@ void kvm_mmu_unload(struct kvm_vcpu *vcpu)
struct kvm *kvm = vcpu->kvm;

kvm_mmu_free_roots(kvm, &vcpu->arch.root_mmu, KVM_MMU_ROOTS_ALL);
- WARN_ON_ONCE(VALID_PAGE(vcpu->arch.root_mmu.root.hpa));
+ WARN_ON_ONCE(VALID_PAGE(vcpu->arch.root_mmu.common.root.hpa));
kvm_mmu_free_roots(kvm, &vcpu->arch.guest_mmu, KVM_MMU_ROOTS_ALL);
- WARN_ON_ONCE(VALID_PAGE(vcpu->arch.guest_mmu.root.hpa));
+ WARN_ON_ONCE(VALID_PAGE(vcpu->arch.guest_mmu.common.root.hpa));
vcpu_clear_mmio_info(vcpu, MMIO_GVA_ANY);
}

@@ -5549,7 +5551,7 @@ static void __kvm_mmu_free_obsolete_roots(struct kvm *kvm, struct kvm_mmu *mmu)
unsigned long roots_to_free = 0;
int i;

- if (is_obsolete_root(kvm, mmu->root.hpa))
+ if (is_obsolete_root(kvm, mmu->common.root.hpa))
roots_to_free |= KVM_MMU_ROOT_CURRENT;

for (i = 0; i < KVM_MMU_NUM_PREV_ROOTS; i++) {
@@ -5719,7 +5721,7 @@ int noinline kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gpa_t cr2_or_gpa, u64 err
void *insn, int insn_len)
{
int r, emulation_type = EMULTYPE_PF;
- bool direct = vcpu->arch.mmu->root_role.direct;
+ bool direct = vcpu->arch.mmu->common.root_role.direct;

/*
* IMPLICIT_ACCESS is a KVM-defined flag used to correctly perform SMAP
@@ -5732,7 +5734,7 @@ int noinline kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gpa_t cr2_or_gpa, u64 err
if (WARN_ON_ONCE(error_code & PFERR_IMPLICIT_ACCESS))
error_code &= ~PFERR_IMPLICIT_ACCESS;

- if (WARN_ON_ONCE(!VALID_PAGE(vcpu->arch.mmu->root.hpa)))
+ if (WARN_ON_ONCE(!VALID_PAGE(vcpu->arch.mmu->common.root.hpa)))
return RET_PF_RETRY;

r = RET_PF_INVALID;
@@ -5762,7 +5764,7 @@ int noinline kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gpa_t cr2_or_gpa, u64 err
* paging in both guests. If true, we simply unprotect the page
* and resume the guest.
*/
- if (vcpu->arch.mmu->root_role.direct &&
+ if (vcpu->arch.mmu->common.root_role.direct &&
(error_code & PFERR_NESTED_GUEST_PAGE) == PFERR_NESTED_GUEST_PAGE) {
kvm_mmu_unprotect_page(vcpu->kvm, gpa_to_gfn(cr2_or_gpa));
return 1;
@@ -5844,7 +5846,7 @@ void kvm_mmu_invalidate_addr(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu,
return;

if (roots & KVM_MMU_ROOT_CURRENT)
- __kvm_mmu_invalidate_addr(vcpu, mmu, addr, mmu->root.hpa);
+ __kvm_mmu_invalidate_addr(vcpu, mmu, addr, mmu->common.root.hpa);

for (i = 0; i < KVM_MMU_NUM_PREV_ROOTS; i++) {
if (roots & KVM_MMU_ROOT_PREVIOUS(i))
@@ -5990,8 +5992,8 @@ static int __kvm_mmu_create(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu)
struct page *page;
int i;

- mmu->root.hpa = INVALID_PAGE;
- mmu->root.pgd = 0;
+ mmu->common.root.hpa = INVALID_PAGE;
+ mmu->common.root.pgd = 0;
for (i = 0; i < KVM_MMU_NUM_PREV_ROOTS; i++)
mmu->prev_roots[i] = KVM_MMU_ROOT_INFO_INVALID;

diff --git a/arch/x86/kvm/mmu/mmu_internal.h b/arch/x86/kvm/mmu/mmu_internal.h
index decc1f1536694..7699596308386 100644
--- a/arch/x86/kvm/mmu/mmu_internal.h
+++ b/arch/x86/kvm/mmu/mmu_internal.h
@@ -299,7 +299,7 @@ static inline int kvm_mmu_do_page_fault(struct kvm_vcpu *vcpu, gpa_t cr2_or_gpa,
};
int r;

- if (vcpu->arch.mmu->root_role.direct) {
+ if (vcpu->arch.mmu->common.root_role.direct) {
fault.gfn = fault.addr >> PAGE_SHIFT;
fault.slot = kvm_vcpu_gfn_to_memslot(vcpu, fault.gfn);
}
diff --git a/arch/x86/kvm/mmu/paging_tmpl.h b/arch/x86/kvm/mmu/paging_tmpl.h
index c85255073f672..84509af0d7f9d 100644
--- a/arch/x86/kvm/mmu/paging_tmpl.h
+++ b/arch/x86/kvm/mmu/paging_tmpl.h
@@ -648,7 +648,7 @@ static int FNAME(fetch)(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault,
if (FNAME(gpte_changed)(vcpu, gw, top_level))
goto out_gpte_changed;

- if (WARN_ON_ONCE(!VALID_PAGE(vcpu->arch.mmu->root.hpa)))
+ if (WARN_ON_ONCE(!VALID_PAGE(vcpu->arch.mmu->common.root.hpa)))
goto out_gpte_changed;

/*
@@ -657,7 +657,7 @@ static int FNAME(fetch)(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault,
* loading a dummy root and handling the resulting page fault, e.g. if
* userspace create a memslot in the interim.
*/
- if (unlikely(kvm_mmu_is_dummy_root(vcpu->arch.mmu->root.hpa))) {
+ if (unlikely(kvm_mmu_is_dummy_root(vcpu->arch.mmu->common.root.hpa))) {
kvm_make_request(KVM_REQ_MMU_FREE_OBSOLETE_ROOTS, vcpu);
goto out_gpte_changed;
}
@@ -960,9 +960,8 @@ static int FNAME(sync_spte)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp, int
spte = *sptep;
host_writable = spte & shadow_host_writable_mask;
slot = kvm_vcpu_gfn_to_memslot(vcpu, gfn);
- make_spte(vcpu, sp, slot, pte_access, gfn,
- spte_to_pfn(spte), spte, true, false,
- host_writable, &spte);
+ make_spte(vcpu, &vcpu->arch.mmu->common, sp, slot, pte_access,
+ gfn, spte_to_pfn(spte), spte, true, false, host_writable, &spte);

return mmu_spte_update(sptep, spte);
}
diff --git a/arch/x86/kvm/mmu/spte.c b/arch/x86/kvm/mmu/spte.c
index 179156cd995df..9060a56e45569 100644
--- a/arch/x86/kvm/mmu/spte.c
+++ b/arch/x86/kvm/mmu/spte.c
@@ -137,7 +137,8 @@ bool spte_has_volatile_bits(u64 spte)
return false;
}

-bool make_spte(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
+bool make_spte(struct kvm_vcpu *vcpu,
+ struct kvm_mmu_common *mmu_common, struct kvm_mmu_page *sp,
const struct kvm_memory_slot *slot,
unsigned int pte_access, gfn_t gfn, kvm_pfn_t pfn,
u64 old_spte, bool prefetch, bool can_unsync,
@@ -237,9 +238,9 @@ bool make_spte(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
if (prefetch)
spte = mark_spte_for_access_track(spte);

- WARN_ONCE(is_rsvd_spte(&vcpu->arch.mmu->shadow_zero_check, spte, level),
+ WARN_ONCE(is_rsvd_spte(&mmu_common->shadow_zero_check, spte, level),
"spte = 0x%llx, level = %d, rsvd bits = 0x%llx", spte, level,
- get_rsvd_bits(&vcpu->arch.mmu->shadow_zero_check, spte, level));
+ get_rsvd_bits(&mmu_common->shadow_zero_check, spte, level));

if ((spte & PT_WRITABLE_MASK) && kvm_slot_dirty_track_enabled(slot)) {
/* Enforced by kvm_mmu_hugepage_adjust. */
diff --git a/arch/x86/kvm/mmu/spte.h b/arch/x86/kvm/mmu/spte.h
index b88b686a4ecbc..8f747268a4874 100644
--- a/arch/x86/kvm/mmu/spte.h
+++ b/arch/x86/kvm/mmu/spte.h
@@ -530,7 +530,8 @@ static inline u64 get_mmio_spte_generation(u64 spte)

bool spte_has_volatile_bits(u64 spte);

-bool make_spte(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
+bool make_spte(struct kvm_vcpu *vcpu,
+ struct kvm_mmu_common *mmu_common, struct kvm_mmu_page *sp,
const struct kvm_memory_slot *slot,
unsigned int pte_access, gfn_t gfn, kvm_pfn_t pfn,
u64 old_spte, bool prefetch, bool can_unsync,
diff --git a/arch/x86/kvm/mmu/tdp_mmu.c b/arch/x86/kvm/mmu/tdp_mmu.c
index 6cd4dd631a2fa..6657685a28709 100644
--- a/arch/x86/kvm/mmu/tdp_mmu.c
+++ b/arch/x86/kvm/mmu/tdp_mmu.c
@@ -219,7 +219,7 @@ static void tdp_mmu_init_child_sp(struct kvm_mmu_page *child_sp,

hpa_t kvm_tdp_mmu_get_vcpu_root_hpa(struct kvm_vcpu *vcpu)
{
- union kvm_mmu_page_role role = vcpu->arch.mmu->root_role;
+ union kvm_mmu_page_role role = vcpu->arch.mmu->common.root_role;
struct kvm *kvm = vcpu->kvm;
struct kvm_mmu_page *root;

@@ -640,7 +640,7 @@ static inline void tdp_mmu_iter_set_spte(struct kvm *kvm, struct tdp_iter *iter,
else

#define tdp_mmu_for_each_pte(_iter, _mmu, _start, _end) \
- for_each_tdp_pte(_iter, root_to_sp(_mmu->root.hpa), _start, _end)
+ for_each_tdp_pte(_iter, root_to_sp(_mmu->common.root.hpa), _start, _end)

/*
* Yield if the MMU lock is contended or this thread needs to return control
@@ -964,9 +964,10 @@ static int tdp_mmu_map_handle_target_level(struct kvm_vcpu *vcpu,
if (unlikely(!fault->slot))
new_spte = make_mmio_spte(vcpu, iter->gfn, ACC_ALL);
else
- wrprot = make_spte(vcpu, sp, fault->slot, ACC_ALL, iter->gfn,
- fault->pfn, iter->old_spte, fault->prefetch, true,
- fault->map_writable, &new_spte);
+ wrprot = make_spte(vcpu, &vcpu->arch.mmu->common, sp, fault->slot,
+ ACC_ALL, iter->gfn, fault->pfn, iter->old_spte,
+ fault->prefetch, true, fault->map_writable,
+ &new_spte);

if (new_spte == iter->old_spte)
ret = RET_PF_SPURIOUS;
@@ -1769,7 +1770,7 @@ int kvm_tdp_mmu_get_walk(struct kvm_vcpu *vcpu, u64 addr, u64 *sptes,
gfn_t gfn = addr >> PAGE_SHIFT;
int leaf = -1;

- *root_level = vcpu->arch.mmu->root_role.level;
+ *root_level = vcpu->arch.mmu->common.root_role.level;

tdp_mmu_for_each_pte(iter, mmu, gfn, gfn + 1) {
leaf = iter.level;
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index 7121463123584..4941f53234a00 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -3900,7 +3900,7 @@ static void svm_flush_tlb_asid(struct kvm_vcpu *vcpu)

static void svm_flush_tlb_current(struct kvm_vcpu *vcpu)
{
- hpa_t root_tdp = vcpu->arch.mmu->root.hpa;
+ hpa_t root_tdp = vcpu->arch.mmu->common.root.hpa;

/*
* When running on Hyper-V with EnlightenedNptTlb enabled, explicitly
diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index c5ec0ef51ff78..43451fca00605 100644
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -5720,7 +5720,7 @@ static int handle_invept(struct kvm_vcpu *vcpu)
VMXERR_INVALID_OPERAND_TO_INVEPT_INVVPID);

roots_to_free = 0;
- if (nested_ept_root_matches(mmu->root.hpa, mmu->root.pgd,
+ if (nested_ept_root_matches(mmu->common.root.hpa, mmu->common.root.pgd,
operand.eptp))
roots_to_free |= KVM_MMU_ROOT_CURRENT;

diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index be20a60047b1f..1cc717a718e9c 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -3190,7 +3190,7 @@ static inline int vmx_get_current_vpid(struct kvm_vcpu *vcpu)
static void vmx_flush_tlb_current(struct kvm_vcpu *vcpu)
{
struct kvm_mmu *mmu = vcpu->arch.mmu;
- u64 root_hpa = mmu->root.hpa;
+ u64 root_hpa = mmu->common.root.hpa;

/* No flush required if the current context is invalid. */
if (!VALID_PAGE(root_hpa))
@@ -3198,7 +3198,7 @@ static void vmx_flush_tlb_current(struct kvm_vcpu *vcpu)

if (enable_ept)
ept_sync_context(construct_eptp(vcpu, root_hpa,
- mmu->root_role.level));
+ mmu->common.root_role.level));
else
vpid_sync_context(vmx_get_current_vpid(vcpu));
}
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 2c924075f6f11..9ac8682c70ae7 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -8688,7 +8688,7 @@ static bool reexecute_instruction(struct kvm_vcpu *vcpu, gpa_t cr2_or_gpa,
WARN_ON_ONCE(!(emulation_type & EMULTYPE_PF)))
return false;

- if (!vcpu->arch.mmu->root_role.direct) {
+ if (!vcpu->arch.mmu->common.root_role.direct) {
/*
* Write permission should be allowed since only
* write access need to be emulated.
@@ -8721,7 +8721,7 @@ static bool reexecute_instruction(struct kvm_vcpu *vcpu, gpa_t cr2_or_gpa,
kvm_release_pfn_clean(pfn);

/* The instructions are well-emulated on direct mmu. */
- if (vcpu->arch.mmu->root_role.direct) {
+ if (vcpu->arch.mmu->common.root_role.direct) {
unsigned int indirect_shadow_pages;

write_lock(&vcpu->kvm->mmu_lock);
@@ -8789,7 +8789,7 @@ static bool retry_instruction(struct x86_emulate_ctxt *ctxt,
vcpu->arch.last_retry_eip = ctxt->eip;
vcpu->arch.last_retry_addr = cr2_or_gpa;

- if (!vcpu->arch.mmu->root_role.direct)
+ if (!vcpu->arch.mmu->common.root_role.direct)
gpa = kvm_mmu_gva_to_gpa_write(vcpu, cr2_or_gpa, NULL);

kvm_mmu_unprotect_page(vcpu->kvm, gpa_to_gfn(gpa));
@@ -9089,7 +9089,7 @@ int x86_emulate_instruction(struct kvm_vcpu *vcpu, gpa_t cr2_or_gpa,
ctxt->exception.address = cr2_or_gpa;

/* With shadow page tables, cr2 contains a GVA or nGPA. */
- if (vcpu->arch.mmu->root_role.direct) {
+ if (vcpu->arch.mmu->common.root_role.direct) {
ctxt->gpa_available = true;
ctxt->gpa_val = cr2_or_gpa;
}
--
2.17.1