29 static bool msr_mtrr_valid(unsigned msr)  in msr_mtrr_valid()  argument
31 	switch (msr) {  in msr_mtrr_valid()
61 bool kvm_mtrr_valid(struct kvm_vcpu *vcpu, u32 msr, u64 data)  in kvm_mtrr_valid()  argument
66 	if (!msr_mtrr_valid(msr))  in kvm_mtrr_valid()
69 	if (msr == MSR_IA32_CR_PAT) {  in kvm_mtrr_valid()
74 	} else if (msr == MSR_MTRRdefType) {  in kvm_mtrr_valid()
78 	} else if (msr >= MSR_MTRRfix64K_00000 && msr <= MSR_MTRRfix4K_F8000) {  in kvm_mtrr_valid()
86 	WARN_ON(!(msr >= 0x200 && msr < 0x200 + 2 * KVM_NR_VAR_MTRR));  in kvm_mtrr_valid()
89 	if ((msr & 1) == 0) {  in kvm_mtrr_valid()
196 static bool fixed_msr_to_seg_unit(u32 msr, int *seg, int *unit)  in fixed_msr_to_seg_unit()  argument
198 	switch (msr) {  in fixed_msr_to_seg_unit()
205 		*unit = msr - MSR_MTRRfix16K_80000;  in fixed_msr_to_seg_unit()
209 		*unit = msr - MSR_MTRRfix4K_C0000;  in fixed_msr_to_seg_unit()
248 static bool fixed_msr_to_range(u32 msr, u64 *start, u64 *end)  in fixed_msr_to_range()  argument
252 	if (!fixed_msr_to_seg_unit(msr, &seg, &unit))  in fixed_msr_to_range()
259 static int fixed_msr_to_range_index(u32 msr)  in fixed_msr_to_range_index()  argument
263 	if (!fixed_msr_to_seg_unit(msr, &seg, &unit))  in fixed_msr_to_range_index()
316 static void update_mtrr(struct kvm_vcpu *vcpu, u32 msr)  in update_mtrr()  argument
322 	if (msr == MSR_IA32_CR_PAT || !tdp_enabled ||  in update_mtrr()
326 	if (!mtrr_is_enabled(mtrr_state) && msr != MSR_MTRRdefType)  in update_mtrr()
330 	if (fixed_msr_to_range(msr, &start, &end)) {  in update_mtrr()
333 	} else if (msr == MSR_MTRRdefType) {  in update_mtrr()
338 		index = (msr - 0x200) / 2;  in update_mtrr()
350 static void set_var_mtrr_msr(struct kvm_vcpu *vcpu, u32 msr, u64 data)  in set_var_mtrr_msr()  argument
356 	index = (msr - 0x200) / 2;  in set_var_mtrr_msr()
357 	is_mtrr_mask = msr - 0x200 - 2 * index;  in set_var_mtrr_msr()
382 int kvm_mtrr_set_msr(struct kvm_vcpu *vcpu, u32 msr, u64 data)  in kvm_mtrr_set_msr()  argument
386 	if (!kvm_mtrr_valid(vcpu, msr, data))  in kvm_mtrr_set_msr()
389 	index = fixed_msr_to_range_index(msr);  in kvm_mtrr_set_msr()
392 	else if (msr == MSR_MTRRdefType)  in kvm_mtrr_set_msr()
394 	else if (msr == MSR_IA32_CR_PAT)  in kvm_mtrr_set_msr()
397 		set_var_mtrr_msr(vcpu, msr, data);  in kvm_mtrr_set_msr()
399 	update_mtrr(vcpu, msr);  in kvm_mtrr_set_msr()
403 int kvm_mtrr_get_msr(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata)  in kvm_mtrr_get_msr()  argument
408 	if (msr == MSR_MTRRcap) {  in kvm_mtrr_get_msr()
419 	if (!msr_mtrr_valid(msr))  in kvm_mtrr_get_msr()
422 	index = fixed_msr_to_range_index(msr);  in kvm_mtrr_get_msr()
425 	else if (msr == MSR_MTRRdefType)  in kvm_mtrr_get_msr()
427 	else if (msr == MSR_IA32_CR_PAT)  in kvm_mtrr_get_msr()
432 		index = (msr - 0x200) / 2;  in kvm_mtrr_get_msr()
433 		is_mtrr_mask = msr - 0x200 - 2 * index;  in kvm_mtrr_get_msr()