[PATCH mm-unstable v2 08/10] kvm/x86: move tdp_mmu_enabled and shadow_accessed_mask

Yu Zhao
2023-05-26T23:45:10Z

tdp_mmu_enabled and shadow_accessed_mask are needed to implement
kvm_arch_has_test_clear_young().

Signed-off-by: Yu Zhao <yuzhao@google.com>
---
arch/x86/include/asm/kvm_host.h | 6 ++++++
arch/x86/kvm/mmu.h | 6 ------
arch/x86/kvm/mmu/spte.h | 1 -
3 files changed, 6 insertions(+), 7 deletions(-)

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index fb9d1f2d6136..753c67072c47 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1772,6 +1772,7 @@ struct kvm_arch_async_pf {

extern u32 __read_mostly kvm_nr_uret_msrs;
extern u64 __read_mostly host_efer;
+extern u64 __read_mostly shadow_accessed_mask;
extern bool __read_mostly allow_smaller_maxphyaddr;
extern bool __read_mostly enable_apicv;
extern struct kvm_x86_ops kvm_x86_ops;
@@ -1855,6 +1856,11 @@ void kvm_fire_mask_notifiers(struct kvm *kvm, unsigned irqchip, unsigned pin,
bool mask);

extern bool tdp_enabled;
+#ifdef CONFIG_X86_64
+extern bool tdp_mmu_enabled;
+#else
+#define tdp_mmu_enabled false
+#endif

u64 vcpu_tsc_khz(struct kvm_vcpu *vcpu);

diff --git a/arch/x86/kvm/mmu.h b/arch/x86/kvm/mmu.h
index 92d5a1924fc1..84aedb2671ef 100644
--- a/arch/x86/kvm/mmu.h
+++ b/arch/x86/kvm/mmu.h
@@ -253,12 +253,6 @@ static inline bool kvm_shadow_root_allocated(struct kvm *kvm)
return smp_load_acquire(&kvm->arch.shadow_root_allocated);
}

-#ifdef CONFIG_X86_64
-extern bool tdp_mmu_enabled;
-#else
-#define tdp_mmu_enabled false
-#endif
-
static inline bool kvm_memslots_have_rmaps(struct kvm *kvm)
{
return !tdp_mmu_enabled || kvm_shadow_root_allocated(kvm);
diff --git a/arch/x86/kvm/mmu/spte.h b/arch/x86/kvm/mmu/spte.h
index 1279db2eab44..a82c4fa1c47b 100644
--- a/arch/x86/kvm/mmu/spte.h
+++ b/arch/x86/kvm/mmu/spte.h
@@ -153,7 +153,6 @@ extern u64 __read_mostly shadow_mmu_writable_mask;
extern u64 __read_mostly shadow_nx_mask;
extern u64 __read_mostly shadow_x_mask; /* mutual exclusive with nx_mask */
extern u64 __read_mostly shadow_user_mask;
-extern u64 __read_mostly shadow_accessed_mask;
extern u64 __read_mostly shadow_dirty_mask;
extern u64 __read_mostly shadow_mmio_value;
extern u64 __read_mostly shadow_mmio_mask;
--
2.41.0.rc0.172.g3f132b7071-goog