diff options
Diffstat (limited to 'arch/x86/kvm/mmu.h')
-rw-r--r-- | arch/x86/kvm/mmu.h | 87 |
1 files changed, 0 insertions, 87 deletions
diff --git a/arch/x86/kvm/mmu.h b/arch/x86/kvm/mmu.h index c242e26cfa80..da5ed1430d7e 100644 --- a/arch/x86/kvm/mmu.h +++ b/arch/x86/kvm/mmu.h @@ -141,93 +141,6 @@ static inline void kvm_mmu_load_pgd(struct kvm_vcpu *vcpu) vcpu->arch.mmu->root_role.level); } -struct kvm_page_fault { - /* arguments to kvm_mmu_do_page_fault. */ - const gpa_t addr; - const u32 error_code; - const bool prefetch; - - /* Derived from error_code. */ - const bool exec; - const bool write; - const bool present; - const bool rsvd; - const bool user; - - /* Derived from mmu and global state. */ - const bool is_tdp; - const bool nx_huge_page_workaround_enabled; - - /* - * Whether a >4KB mapping can be created or is forbidden due to NX - * hugepages. - */ - bool huge_page_disallowed; - - /* - * Maximum page size that can be created for this fault; input to - * FNAME(fetch), __direct_map and kvm_tdp_mmu_map. - */ - u8 max_level; - - /* - * Page size that can be created based on the max_level and the - * page size used by the host mapping. - */ - u8 req_level; - - /* - * Page size that will be created based on the req_level and - * huge_page_disallowed. - */ - u8 goal_level; - - /* Shifted addr, or result of guest page table walk if addr is a gva. */ - gfn_t gfn; - - /* The memslot containing gfn. May be NULL. */ - struct kvm_memory_slot *slot; - - /* Outputs of kvm_faultin_pfn. */ - kvm_pfn_t pfn; - hva_t hva; - bool map_writable; -}; - -int kvm_tdp_page_fault(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault); - -extern int nx_huge_pages; -static inline bool is_nx_huge_page_enabled(void) -{ - return READ_ONCE(nx_huge_pages); -} - -static inline int kvm_mmu_do_page_fault(struct kvm_vcpu *vcpu, gpa_t cr2_or_gpa, - u32 err, bool prefetch) -{ - struct kvm_page_fault fault = { - .addr = cr2_or_gpa, - .error_code = err, - .exec = err & PFERR_FETCH_MASK, - .write = err & PFERR_WRITE_MASK, - .present = err & PFERR_PRESENT_MASK, - .rsvd = err & PFERR_RSVD_MASK, - .user = err & PFERR_USER_MASK, - .prefetch = prefetch, - .is_tdp = likely(vcpu->arch.mmu->page_fault == kvm_tdp_page_fault), - .nx_huge_page_workaround_enabled = is_nx_huge_page_enabled(), - - .max_level = KVM_MAX_HUGEPAGE_LEVEL, - .req_level = PG_LEVEL_4K, - .goal_level = PG_LEVEL_4K, - }; -#ifdef CONFIG_RETPOLINE - if (fault.is_tdp) - return kvm_tdp_page_fault(vcpu, &fault); -#endif - return vcpu->arch.mmu->page_fault(vcpu, &fault); -} - /* * Check if a given access (described through the I/D, W/R and U/S bits of a * page fault error code pfec) causes a permission fault with the given PTE |