28 static bool is_mtrr_base_msr(unsigned int msr)  in is_mtrr_base_msr()  argument
31 	return !(msr & 0x1);  in is_mtrr_base_msr()
35 						    unsigned int msr)  in var_mtrr_msr_to_range()  argument
37 	int index = (msr - MTRRphysBase_MSR(0)) / 2;  in var_mtrr_msr_to_range()
42 static bool msr_mtrr_valid(unsigned msr)  in msr_mtrr_valid()  argument
44 	switch (msr) {  in msr_mtrr_valid()
68 static bool kvm_mtrr_valid(struct kvm_vcpu *vcpu, u32 msr, u64 data)  in kvm_mtrr_valid()  argument
73 	if (!msr_mtrr_valid(msr))  in kvm_mtrr_valid()
76 	if (msr == MSR_MTRRdefType) {  in kvm_mtrr_valid()
80 	} else if (msr >= MSR_MTRRfix64K_00000 && msr <= MSR_MTRRfix4K_F8000) {  in kvm_mtrr_valid()
88 	WARN_ON(!(msr >= MTRRphysBase_MSR(0) &&  in kvm_mtrr_valid()
89 		  msr <= MTRRphysMask_MSR(KVM_NR_VAR_MTRR - 1)));  in kvm_mtrr_valid()
92 	if ((msr & 1) == 0) {  in kvm_mtrr_valid()
194 static bool fixed_msr_to_seg_unit(u32 msr, int *seg, int *unit)  in fixed_msr_to_seg_unit()  argument
196 	switch (msr) {  in fixed_msr_to_seg_unit()
204 			msr - MSR_MTRRfix16K_80000,  in fixed_msr_to_seg_unit()
210 			msr - MSR_MTRRfix4K_C0000,  in fixed_msr_to_seg_unit()
250 static bool fixed_msr_to_range(u32 msr, u64 *start, u64 *end)  in fixed_msr_to_range()  argument
254 	if (!fixed_msr_to_seg_unit(msr, &seg, &unit))  in fixed_msr_to_range()
261 static int fixed_msr_to_range_index(u32 msr)  in fixed_msr_to_range_index()  argument
265 	if (!fixed_msr_to_seg_unit(msr, &seg, &unit))  in fixed_msr_to_range_index()
318 static void update_mtrr(struct kvm_vcpu *vcpu, u32 msr)  in update_mtrr()  argument
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 		var_mtrr_range(var_mtrr_msr_to_range(vcpu, msr), &start, &end);  in update_mtrr()
349 static void set_var_mtrr_msr(struct kvm_vcpu *vcpu, u32 msr, u64 data)  in set_var_mtrr_msr()  argument
354 	cur = var_mtrr_msr_to_range(vcpu, msr);  in set_var_mtrr_msr()
364 	if (is_mtrr_base_msr(msr))  in set_var_mtrr_msr()
378 int kvm_mtrr_set_msr(struct kvm_vcpu *vcpu, u32 msr, u64 data)  in kvm_mtrr_set_msr()  argument
382 	if (!kvm_mtrr_valid(vcpu, msr, data))  in kvm_mtrr_set_msr()
385 	index = fixed_msr_to_range_index(msr);  in kvm_mtrr_set_msr()
388 	else if (msr == MSR_MTRRdefType)  in kvm_mtrr_set_msr()
391 		set_var_mtrr_msr(vcpu, msr, data);  in kvm_mtrr_set_msr()
393 	update_mtrr(vcpu, msr);  in kvm_mtrr_set_msr()
397 int kvm_mtrr_get_msr(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata)  in kvm_mtrr_get_msr()  argument
402 	if (msr == MSR_MTRRcap) {  in kvm_mtrr_get_msr()
413 	if (!msr_mtrr_valid(msr))  in kvm_mtrr_get_msr()
416 	index = fixed_msr_to_range_index(msr);  in kvm_mtrr_get_msr()
419 	} else if (msr == MSR_MTRRdefType) {  in kvm_mtrr_get_msr()
423 		if (is_mtrr_base_msr(msr))  in kvm_mtrr_get_msr()
424 			*pdata = var_mtrr_msr_to_range(vcpu, msr)->base;  in kvm_mtrr_get_msr()
426 			*pdata = var_mtrr_msr_to_range(vcpu, msr)->mask;  in kvm_mtrr_get_msr()