52 static int kvm_hv_msr_get_crash_data(struct kvm_vcpu *vcpu,  in kvm_hv_msr_get_crash_data()  argument
55 	struct kvm_hv *hv = &vcpu->kvm->arch.hyperv;  in kvm_hv_msr_get_crash_data()
64 static int kvm_hv_msr_get_crash_ctl(struct kvm_vcpu *vcpu, u64 *pdata)  in kvm_hv_msr_get_crash_ctl()  argument
66 	struct kvm_hv *hv = &vcpu->kvm->arch.hyperv;  in kvm_hv_msr_get_crash_ctl()
72 static int kvm_hv_msr_set_crash_ctl(struct kvm_vcpu *vcpu, u64 data, bool host)  in kvm_hv_msr_set_crash_ctl()  argument
74 	struct kvm_hv *hv = &vcpu->kvm->arch.hyperv;  in kvm_hv_msr_set_crash_ctl()
81 		vcpu_debug(vcpu, "hv crash (0x%llx 0x%llx 0x%llx 0x%llx 0x%llx)\n",  in kvm_hv_msr_set_crash_ctl()
89 		kvm_make_request(KVM_REQ_HV_CRASH, vcpu);  in kvm_hv_msr_set_crash_ctl()
95 static int kvm_hv_msr_set_crash_data(struct kvm_vcpu *vcpu,  in kvm_hv_msr_set_crash_data()  argument
98 	struct kvm_hv *hv = &vcpu->kvm->arch.hyperv;  in kvm_hv_msr_set_crash_data()
107 static int kvm_hv_set_msr_pw(struct kvm_vcpu *vcpu, u32 msr, u64 data,  in kvm_hv_set_msr_pw()  argument
110 	struct kvm *kvm = vcpu->kvm;  in kvm_hv_set_msr_pw()
136 		kvm_x86_ops->patch_hypercall(vcpu, instructions);  in kvm_hv_set_msr_pw()
162 		return kvm_hv_msr_set_crash_data(vcpu,  in kvm_hv_set_msr_pw()
166 		return kvm_hv_msr_set_crash_ctl(vcpu, data, host);  in kvm_hv_set_msr_pw()
169 			vcpu_debug(vcpu, "hyper-v reset requested\n");  in kvm_hv_set_msr_pw()
170 			kvm_make_request(KVM_REQ_HV_RESET, vcpu);  in kvm_hv_set_msr_pw()
174 		vcpu_unimpl(vcpu, "Hyper-V uhandled wrmsr: 0x%x data 0x%llx\n",  in kvm_hv_set_msr_pw()
190 static int kvm_hv_set_msr(struct kvm_vcpu *vcpu, u32 msr, u64 data, bool host)  in kvm_hv_set_msr()  argument
192 	struct kvm_vcpu_hv *hv = &vcpu->arch.hyperv;  in kvm_hv_set_msr()
201 			if (kvm_lapic_enable_pv_eoi(vcpu, 0))  in kvm_hv_set_msr()
206 		addr = kvm_vcpu_gfn_to_hva(vcpu, gfn);  in kvm_hv_set_msr()
212 		kvm_vcpu_mark_page_dirty(vcpu, gfn);  in kvm_hv_set_msr()
213 		if (kvm_lapic_enable_pv_eoi(vcpu,  in kvm_hv_set_msr()
219 		return kvm_hv_vapic_msr_write(vcpu, APIC_EOI, data);  in kvm_hv_set_msr()
221 		return kvm_hv_vapic_msr_write(vcpu, APIC_ICR, data);  in kvm_hv_set_msr()
223 		return kvm_hv_vapic_msr_write(vcpu, APIC_TASKPRI, data);  in kvm_hv_set_msr()
230 		vcpu_unimpl(vcpu, "Hyper-V uhandled wrmsr: 0x%x data 0x%llx\n",  in kvm_hv_set_msr()
238 static int kvm_hv_get_msr_pw(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata)  in kvm_hv_get_msr_pw()  argument
241 	struct kvm *kvm = vcpu->kvm;  in kvm_hv_get_msr_pw()
260 		return kvm_hv_msr_get_crash_data(vcpu,  in kvm_hv_get_msr_pw()
264 		return kvm_hv_msr_get_crash_ctl(vcpu, pdata);  in kvm_hv_get_msr_pw()
269 		vcpu_unimpl(vcpu, "Hyper-V unhandled rdmsr: 0x%x\n", msr);  in kvm_hv_get_msr_pw()
277 static int kvm_hv_get_msr(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata)  in kvm_hv_get_msr()  argument
280 	struct kvm_vcpu_hv *hv = &vcpu->arch.hyperv;  in kvm_hv_get_msr()
287 		kvm_for_each_vcpu(r, v, vcpu->kvm) {  in kvm_hv_get_msr()
288 			if (v == vcpu) {  in kvm_hv_get_msr()
296 		return kvm_hv_vapic_msr_read(vcpu, APIC_EOI, pdata);  in kvm_hv_get_msr()
298 		return kvm_hv_vapic_msr_read(vcpu, APIC_ICR, pdata);  in kvm_hv_get_msr()
300 		return kvm_hv_vapic_msr_read(vcpu, APIC_TASKPRI, pdata);  in kvm_hv_get_msr()
308 		vcpu_unimpl(vcpu, "Hyper-V unhandled rdmsr: 0x%x\n", msr);  in kvm_hv_get_msr()
315 int kvm_hv_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data, bool host)  in kvm_hv_set_msr_common()  argument
320 		mutex_lock(&vcpu->kvm->lock);  in kvm_hv_set_msr_common()
321 		r = kvm_hv_set_msr_pw(vcpu, msr, data, host);  in kvm_hv_set_msr_common()
322 		mutex_unlock(&vcpu->kvm->lock);  in kvm_hv_set_msr_common()
325 		return kvm_hv_set_msr(vcpu, msr, data, host);  in kvm_hv_set_msr_common()
328 int kvm_hv_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata)  in kvm_hv_get_msr_common()  argument
333 		mutex_lock(&vcpu->kvm->lock);  in kvm_hv_get_msr_common()
334 		r = kvm_hv_get_msr_pw(vcpu, msr, pdata);  in kvm_hv_get_msr_common()
335 		mutex_unlock(&vcpu->kvm->lock);  in kvm_hv_get_msr_common()
338 		return kvm_hv_get_msr(vcpu, msr, pdata);  in kvm_hv_get_msr_common()
346 int kvm_hv_hypercall(struct kvm_vcpu *vcpu)  in kvm_hv_hypercall()  argument
356 	if (kvm_x86_ops->get_cpl(vcpu) != 0 || !is_protmode(vcpu)) {  in kvm_hv_hypercall()
357 		kvm_queue_exception(vcpu, UD_VECTOR);  in kvm_hv_hypercall()
361 	longmode = is_64_bit_mode(vcpu);  in kvm_hv_hypercall()
364 		param = ((u64)kvm_register_read(vcpu, VCPU_REGS_RDX) << 32) |  in kvm_hv_hypercall()
365 			(kvm_register_read(vcpu, VCPU_REGS_RAX) & 0xffffffff);  in kvm_hv_hypercall()
366 		ingpa = ((u64)kvm_register_read(vcpu, VCPU_REGS_RBX) << 32) |  in kvm_hv_hypercall()
367 			(kvm_register_read(vcpu, VCPU_REGS_RCX) & 0xffffffff);  in kvm_hv_hypercall()
368 		outgpa = ((u64)kvm_register_read(vcpu, VCPU_REGS_RDI) << 32) |  in kvm_hv_hypercall()
369 			(kvm_register_read(vcpu, VCPU_REGS_RSI) & 0xffffffff);  in kvm_hv_hypercall()
373 		param = kvm_register_read(vcpu, VCPU_REGS_RCX);  in kvm_hv_hypercall()
374 		ingpa = kvm_register_read(vcpu, VCPU_REGS_RDX);  in kvm_hv_hypercall()
375 		outgpa = kvm_register_read(vcpu, VCPU_REGS_R8);  in kvm_hv_hypercall()
388 		kvm_vcpu_on_spin(vcpu);  in kvm_hv_hypercall()
397 		kvm_register_write(vcpu, VCPU_REGS_RAX, ret);  in kvm_hv_hypercall()
399 		kvm_register_write(vcpu, VCPU_REGS_RDX, ret >> 32);  in kvm_hv_hypercall()
400 		kvm_register_write(vcpu, VCPU_REGS_RAX, ret & 0xffffffff);  in kvm_hv_hypercall()