diff options
Diffstat (limited to 'arch/x86/kvm/mmu/tdp_mmu.c')
| -rw-r--r-- | arch/x86/kvm/mmu/tdp_mmu.c | 29 |
1 files changed, 1 insertions, 28 deletions
diff --git a/arch/x86/kvm/mmu/tdp_mmu.c b/arch/x86/kvm/mmu/tdp_mmu.c index aa0845d5e1e4..ec99e50a7ba7 100644 --- a/arch/x86/kvm/mmu/tdp_mmu.c +++ b/arch/x86/kvm/mmu/tdp_mmu.c @@ -10,24 +10,13 @@ #include <asm/cmpxchg.h> #include <trace/events/kvm.h> -#ifdef CONFIG_X86_64 static bool __read_mostly tdp_mmu_enabled = false; module_param_named(tdp_mmu, tdp_mmu_enabled, bool, 0644); -#endif - -static bool is_tdp_mmu_enabled(void) -{ -#ifdef CONFIG_X86_64 - return tdp_enabled && READ_ONCE(tdp_mmu_enabled); -#else - return false; -#endif /* CONFIG_X86_64 */ -} /* Initializes the TDP MMU for the VM, if enabled. */ void kvm_mmu_init_tdp_mmu(struct kvm *kvm) { - if (!is_tdp_mmu_enabled()) + if (!tdp_enabled || !READ_ONCE(tdp_mmu_enabled)) return; /* This should not be changed for the lifetime of the VM. */ @@ -96,22 +85,6 @@ static inline struct kvm_mmu_page *tdp_mmu_next_root(struct kvm *kvm, #define for_each_tdp_mmu_root(_kvm, _root) \ list_for_each_entry(_root, &_kvm->arch.tdp_mmu_roots, link) -bool is_tdp_mmu_root(struct kvm *kvm, hpa_t hpa) -{ - struct kvm_mmu_page *sp; - - if (!kvm->arch.tdp_mmu_enabled) - return false; - if (WARN_ON(!VALID_PAGE(hpa))) - return false; - - sp = to_shadow_page(hpa); - if (WARN_ON(!sp)) - return false; - - return sp->tdp_mmu_page && sp->root_count; -} - static bool zap_gfn_range(struct kvm *kvm, struct kvm_mmu_page *root, gfn_t start, gfn_t end, bool can_yield); |