Book a Demo!
CoCalc Logo Icon
StoreFeaturesDocsShareSupportNewsAboutPoliciesSign UpSign In
torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/include/kvm/arm_hypercalls.h
26285 views
1
/* SPDX-License-Identifier: GPL-2.0 */

2
/* Copyright (C) 2019 Arm Ltd. */

3


4
#ifndef __KVM_ARM_HYPERCALLS_H

5
#define __KVM_ARM_HYPERCALLS_H

6


7
#include <asm/kvm_emulate.h>

8


9
int kvm_smccc_call_handler(struct kvm_vcpu *vcpu);

10


11
static inline u32 smccc_get_function(struct kvm_vcpu *vcpu)

12
{

13
	return vcpu_get_reg(vcpu, 0);

14
}

15


16
static inline unsigned long smccc_get_arg1(struct kvm_vcpu *vcpu)

17
{

18
	return vcpu_get_reg(vcpu, 1);

19
}

20


21
static inline unsigned long smccc_get_arg2(struct kvm_vcpu *vcpu)

22
{

23
	return vcpu_get_reg(vcpu, 2);

24
}

25


26
static inline unsigned long smccc_get_arg3(struct kvm_vcpu *vcpu)

27
{

28
	return vcpu_get_reg(vcpu, 3);

29
}

30


31
static inline void smccc_set_retval(struct kvm_vcpu *vcpu,

32
				    unsigned long a0,

33
				    unsigned long a1,

34
				    unsigned long a2,

35
				    unsigned long a3)

36
{

37
	vcpu_set_reg(vcpu, 0, a0);

38
	vcpu_set_reg(vcpu, 1, a1);

39
	vcpu_set_reg(vcpu, 2, a2);

40
	vcpu_set_reg(vcpu, 3, a3);

41
}

42


43
struct kvm_one_reg;

44


45
void kvm_arm_init_hypercalls(struct kvm *kvm);

46
void kvm_arm_teardown_hypercalls(struct kvm *kvm);

47
int kvm_arm_get_fw_num_regs(struct kvm_vcpu *vcpu);

48
int kvm_arm_copy_fw_reg_indices(struct kvm_vcpu *vcpu, u64 __user *uindices);

49
int kvm_arm_get_fw_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg);

50
int kvm_arm_set_fw_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg);

51


52
int kvm_vm_smccc_has_attr(struct kvm *kvm, struct kvm_device_attr *attr);

53
int kvm_vm_smccc_set_attr(struct kvm *kvm, struct kvm_device_attr *attr);

54


55
#endif

56


57