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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 | #ifndef ARCH_X86_KVM_X86_H #define ARCH_X86_KVM_X86_H #include <linux/kvm_host.h> #include "kvm_cache_regs.h" #define MSR_IA32_CR_PAT_DEFAULT 0x0007040600070406ULL static inline void kvm_clear_exception_queue(struct kvm_vcpu *vcpu) { vcpu->arch.exception.pending = false; } static inline void kvm_queue_interrupt(struct kvm_vcpu *vcpu, u8 vector, bool soft) { vcpu->arch.interrupt.pending = true; vcpu->arch.interrupt.soft = soft; vcpu->arch.interrupt.nr = vector; } static inline void kvm_clear_interrupt_queue(struct kvm_vcpu *vcpu) { vcpu->arch.interrupt.pending = false; } static inline bool kvm_event_needs_reinjection(struct kvm_vcpu *vcpu) { return vcpu->arch.exception.pending || vcpu->arch.interrupt.pending || vcpu->arch.nmi_injected; } static inline bool kvm_exception_is_soft(unsigned int nr) { return (nr == BP_VECTOR) || (nr == OF_VECTOR); } static inline bool is_protmode(struct kvm_vcpu *vcpu) { return kvm_read_cr0_bits(vcpu, X86_CR0_PE); } static inline int is_long_mode(struct kvm_vcpu *vcpu) { #ifdef CONFIG_X86_64 return vcpu->arch.efer & EFER_LMA; #else return 0; #endif } static inline bool is_64_bit_mode(struct kvm_vcpu *vcpu) { int cs_db, cs_l; if (!is_long_mode(vcpu)) return false; kvm_x86_ops->get_cs_db_l_bits(vcpu, &cs_db, &cs_l); return cs_l; } static inline bool mmu_is_nested(struct kvm_vcpu *vcpu) { return vcpu->arch.walk_mmu == &vcpu->arch.nested_mmu; } static inline int is_pae(struct kvm_vcpu *vcpu) { return kvm_read_cr4_bits(vcpu, X86_CR4_PAE); } static inline int is_pse(struct kvm_vcpu *vcpu) { return kvm_read_cr4_bits(vcpu, X86_CR4_PSE); } static inline int is_paging(struct kvm_vcpu *vcpu) { return likely(kvm_read_cr0_bits(vcpu, X86_CR0_PG)); } static inline u32 bit(int bitno) { return 1 << (bitno & 31); } static inline void vcpu_cache_mmio_info(struct kvm_vcpu *vcpu, gva_t gva, gfn_t gfn, unsigned access) { vcpu->arch.mmio_gva = gva & PAGE_MASK; vcpu->arch.access = access; vcpu->arch.mmio_gfn = gfn; vcpu->arch.mmio_gen = kvm_memslots(vcpu->kvm)->generation; } static inline bool vcpu_match_mmio_gen(struct kvm_vcpu *vcpu) { return vcpu->arch.mmio_gen == kvm_memslots(vcpu->kvm)->generation; } /* * Clear the mmio cache info for the given gva. If gva is MMIO_GVA_ANY, we * clear all mmio cache info. */ #define MMIO_GVA_ANY (~(gva_t)0) static inline void vcpu_clear_mmio_info(struct kvm_vcpu *vcpu, gva_t gva) { if (gva != MMIO_GVA_ANY && vcpu->arch.mmio_gva != (gva & PAGE_MASK)) return; vcpu->arch.mmio_gva = 0; } static inline bool vcpu_match_mmio_gva(struct kvm_vcpu *vcpu, unsigned long gva) { if (vcpu_match_mmio_gen(vcpu) && vcpu->arch.mmio_gva && vcpu->arch.mmio_gva == (gva & PAGE_MASK)) return true; return false; } static inline bool vcpu_match_mmio_gpa(struct kvm_vcpu *vcpu, gpa_t gpa) { if (vcpu_match_mmio_gen(vcpu) && vcpu->arch.mmio_gfn && vcpu->arch.mmio_gfn == gpa >> PAGE_SHIFT) return true; return false; } static inline unsigned long kvm_register_readl(struct kvm_vcpu *vcpu, enum kvm_reg reg) { unsigned long val = kvm_register_read(vcpu, reg); return is_64_bit_mode(vcpu) ? val : (u32)val; } static inline void kvm_register_writel(struct kvm_vcpu *vcpu, enum kvm_reg reg, unsigned long val) { if (!is_64_bit_mode(vcpu)) val = (u32)val; return kvm_register_write(vcpu, reg, val); } static inline u64 get_kernel_ns(void) { return ktime_get_boot_ns(); } static inline bool kvm_check_has_quirk(struct kvm *kvm, u64 quirk) { return !(kvm->arch.disabled_quirks & quirk); } void kvm_before_handle_nmi(struct kvm_vcpu *vcpu); void kvm_after_handle_nmi(struct kvm_vcpu *vcpu); void kvm_set_pending_timer(struct kvm_vcpu *vcpu); int kvm_inject_realmode_interrupt(struct kvm_vcpu *vcpu, int irq, int inc_eip); void kvm_write_tsc(struct kvm_vcpu *vcpu, struct msr_data *msr); int kvm_read_guest_virt(struct x86_emulate_ctxt *ctxt, gva_t addr, void *val, unsigned int bytes, struct x86_exception *exception); int kvm_write_guest_virt_system(struct x86_emulate_ctxt *ctxt, gva_t addr, void *val, unsigned int bytes, struct x86_exception *exception); void kvm_vcpu_mtrr_init(struct kvm_vcpu *vcpu); u8 kvm_mtrr_get_guest_memory_type(struct kvm_vcpu *vcpu, gfn_t gfn); bool kvm_mtrr_valid(struct kvm_vcpu *vcpu, u32 msr, u64 data); int kvm_mtrr_set_msr(struct kvm_vcpu *vcpu, u32 msr, u64 data); int kvm_mtrr_get_msr(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata); bool kvm_mtrr_check_gfn_range_consistency(struct kvm_vcpu *vcpu, gfn_t gfn, int page_num); #define KVM_SUPPORTED_XCR0 (XSTATE_FP | XSTATE_SSE | XSTATE_YMM \ | XSTATE_BNDREGS | XSTATE_BNDCSR \ | XSTATE_AVX512) extern u64 host_xcr0; extern u64 kvm_supported_xcr0(void); extern unsigned int min_timer_period_us; extern unsigned int lapic_timer_advance_ns; extern struct static_key kvm_no_apic_vcpu; #endif |