19 static __always_inline unsigned long kvm_##lname##_read(struct kvm_vcpu *vcpu)\
21 	return vcpu->arch.regs[VCPU_REGS_##uname];			      \
23 static __always_inline void kvm_##lname##_write(struct kvm_vcpu *vcpu,	      \
26 	vcpu->arch.regs[VCPU_REGS_##uname] = val;			      \
50  * the vCPU task is in the process of updating the cache.  The exception is if  in BUILD_KVM_GPR_ACCESSORS()
55 #define kvm_assert_register_caching_allowed(vcpu)		\  in BUILD_KVM_GPR_ACCESSORS()  argument
56 	lockdep_assert_once(in_task() || kvm_arch_pmi_in_guest(vcpu))  in BUILD_KVM_GPR_ACCESSORS()
62  * 1	  0	  register in vcpu->arch  in BUILD_KVM_GPR_ACCESSORS()
63  * 1	  1	  register in vcpu->arch, needs to be stored back  in BUILD_KVM_GPR_ACCESSORS()
65 static inline bool kvm_register_is_available(struct kvm_vcpu *vcpu,  in BUILD_KVM_GPR_ACCESSORS()
68 	kvm_assert_register_caching_allowed(vcpu);  in BUILD_KVM_GPR_ACCESSORS()
69 	return test_bit(reg, (unsigned long *)&vcpu->arch.regs_avail);  in BUILD_KVM_GPR_ACCESSORS()
72 static inline bool kvm_register_is_dirty(struct kvm_vcpu *vcpu,  in kvm_register_is_dirty()  argument
75 	kvm_assert_register_caching_allowed(vcpu);  in kvm_register_is_dirty()
76 	return test_bit(reg, (unsigned long *)&vcpu->arch.regs_dirty);  in kvm_register_is_dirty()
79 static inline void kvm_register_mark_available(struct kvm_vcpu *vcpu,  in kvm_register_mark_available()  argument
82 	kvm_assert_register_caching_allowed(vcpu);  in kvm_register_mark_available()
83 	__set_bit(reg, (unsigned long *)&vcpu->arch.regs_avail);  in kvm_register_mark_available()
86 static inline void kvm_register_mark_dirty(struct kvm_vcpu *vcpu,  in kvm_register_mark_dirty()  argument
89 	kvm_assert_register_caching_allowed(vcpu);  in kvm_register_mark_dirty()
90 	__set_bit(reg, (unsigned long *)&vcpu->arch.regs_avail);  in kvm_register_mark_dirty()
91 	__set_bit(reg, (unsigned long *)&vcpu->arch.regs_dirty);  in kvm_register_mark_dirty()
100 static __always_inline bool kvm_register_test_and_mark_available(struct kvm_vcpu *vcpu,  in kvm_register_test_and_mark_available()  argument
103 	kvm_assert_register_caching_allowed(vcpu);  in kvm_register_test_and_mark_available()
104 	return arch___test_and_set_bit(reg, (unsigned long *)&vcpu->arch.regs_avail);  in kvm_register_test_and_mark_available()
109  * register are read/written irrespective of current vCPU mode.  In other words,
112 static inline unsigned long kvm_register_read_raw(struct kvm_vcpu *vcpu, int reg)  in kvm_register_read_raw()  argument
117 	if (!kvm_register_is_available(vcpu, reg))  in kvm_register_read_raw()
118 		kvm_x86_call(cache_reg)(vcpu, reg);  in kvm_register_read_raw()
120 	return vcpu->arch.regs[reg];  in kvm_register_read_raw()
123 static inline void kvm_register_write_raw(struct kvm_vcpu *vcpu, int reg,  in kvm_register_write_raw()  argument
129 	vcpu->arch.regs[reg] = val;  in kvm_register_write_raw()
130 	kvm_register_mark_dirty(vcpu, reg);  in kvm_register_write_raw()
133 static inline unsigned long kvm_rip_read(struct kvm_vcpu *vcpu)  in kvm_rip_read()  argument
135 	return kvm_register_read_raw(vcpu, VCPU_REGS_RIP);  in kvm_rip_read()
138 static inline void kvm_rip_write(struct kvm_vcpu *vcpu, unsigned long val)  in kvm_rip_write()  argument
140 	kvm_register_write_raw(vcpu, VCPU_REGS_RIP, val);  in kvm_rip_write()
143 static inline unsigned long kvm_rsp_read(struct kvm_vcpu *vcpu)  in kvm_rsp_read()  argument
145 	return kvm_register_read_raw(vcpu, VCPU_REGS_RSP);  in kvm_rsp_read()
148 static inline void kvm_rsp_write(struct kvm_vcpu *vcpu, unsigned long val)  in kvm_rsp_write()  argument
150 	kvm_register_write_raw(vcpu, VCPU_REGS_RSP, val);  in kvm_rsp_write()
153 static inline u64 kvm_pdptr_read(struct kvm_vcpu *vcpu, int index)  in kvm_pdptr_read()  argument
157 	if (!kvm_register_is_available(vcpu, VCPU_EXREG_PDPTR))  in kvm_pdptr_read()
158 		kvm_x86_call(cache_reg)(vcpu, VCPU_EXREG_PDPTR);  in kvm_pdptr_read()
160 	return vcpu->arch.walk_mmu->pdptrs[index];  in kvm_pdptr_read()
163 static inline void kvm_pdptr_write(struct kvm_vcpu *vcpu, int index, u64 value)  in kvm_pdptr_write()  argument
165 	vcpu->arch.walk_mmu->pdptrs[index] = value;  in kvm_pdptr_write()
168 static inline ulong kvm_read_cr0_bits(struct kvm_vcpu *vcpu, ulong mask)  in kvm_read_cr0_bits()  argument
171 	if ((tmask & vcpu->arch.cr0_guest_owned_bits) &&  in kvm_read_cr0_bits()
172 	    !kvm_register_is_available(vcpu, VCPU_EXREG_CR0))  in kvm_read_cr0_bits()
173 		kvm_x86_call(cache_reg)(vcpu, VCPU_EXREG_CR0);  in kvm_read_cr0_bits()
174 	return vcpu->arch.cr0 & mask;  in kvm_read_cr0_bits()
177 static __always_inline bool kvm_is_cr0_bit_set(struct kvm_vcpu *vcpu,  in kvm_is_cr0_bit_set()  argument
182 	return !!kvm_read_cr0_bits(vcpu, cr0_bit);  in kvm_is_cr0_bit_set()
185 static inline ulong kvm_read_cr0(struct kvm_vcpu *vcpu)  in kvm_read_cr0()  argument
187 	return kvm_read_cr0_bits(vcpu, ~0UL);  in kvm_read_cr0()
190 static inline ulong kvm_read_cr4_bits(struct kvm_vcpu *vcpu, ulong mask)  in kvm_read_cr4_bits()  argument
193 	if ((tmask & vcpu->arch.cr4_guest_owned_bits) &&  in kvm_read_cr4_bits()
194 	    !kvm_register_is_available(vcpu, VCPU_EXREG_CR4))  in kvm_read_cr4_bits()
195 		kvm_x86_call(cache_reg)(vcpu, VCPU_EXREG_CR4);  in kvm_read_cr4_bits()
196 	return vcpu->arch.cr4 & mask;  in kvm_read_cr4_bits()
199 static __always_inline bool kvm_is_cr4_bit_set(struct kvm_vcpu *vcpu,  in kvm_is_cr4_bit_set()  argument
204 	return !!kvm_read_cr4_bits(vcpu, cr4_bit);  in kvm_is_cr4_bit_set()
207 static inline ulong kvm_read_cr3(struct kvm_vcpu *vcpu)  in kvm_read_cr3()  argument
209 	if (!kvm_register_is_available(vcpu, VCPU_EXREG_CR3))  in kvm_read_cr3()
210 		kvm_x86_call(cache_reg)(vcpu, VCPU_EXREG_CR3);  in kvm_read_cr3()
211 	return vcpu->arch.cr3;  in kvm_read_cr3()
214 static inline ulong kvm_read_cr4(struct kvm_vcpu *vcpu)  in kvm_read_cr4()  argument
216 	return kvm_read_cr4_bits(vcpu, ~0UL);  in kvm_read_cr4()
219 static inline u64 kvm_read_edx_eax(struct kvm_vcpu *vcpu)  in kvm_read_edx_eax()  argument
221 	return (kvm_rax_read(vcpu) & -1u)  in kvm_read_edx_eax()
222 		| ((u64)(kvm_rdx_read(vcpu) & -1u) << 32);  in kvm_read_edx_eax()
225 static inline void enter_guest_mode(struct kvm_vcpu *vcpu)  in enter_guest_mode()  argument
227 	vcpu->arch.hflags |= HF_GUEST_MASK;  in enter_guest_mode()
228 	vcpu->stat.guest_mode = 1;  in enter_guest_mode()
231 static inline void leave_guest_mode(struct kvm_vcpu *vcpu)  in leave_guest_mode()  argument
233 	vcpu->arch.hflags &= ~HF_GUEST_MASK;  in leave_guest_mode()
235 	if (vcpu->arch.load_eoi_exitmap_pending) {  in leave_guest_mode()
236 		vcpu->arch.load_eoi_exitmap_pending = false;  in leave_guest_mode()
237 		kvm_make_request(KVM_REQ_LOAD_EOI_EXITMAP, vcpu);  in leave_guest_mode()
240 	vcpu->stat.guest_mode = 0;  in leave_guest_mode()
243 static inline bool is_guest_mode(struct kvm_vcpu *vcpu)  in is_guest_mode()  argument
245 	return vcpu->arch.hflags & HF_GUEST_MASK;  in is_guest_mode()