78 lines
2.6 KiB
C
78 lines
2.6 KiB
C
|
/* SPDX-License-Identifier: GPL-2.0-only */
|
||
|
|
/*
|
||
|
|
* Copyright (C) 2012 - Virtual Open Systems and Columbia University
|
||
|
|
* Author: Christoffer Dall <c.dall@virtualopensystems.com>
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __ARM_KVM_ASM_H__
|
||
|
|
#define __ARM_KVM_ASM_H__
|
||
|
|
|
||
|
|
#include <asm/virt.h>
|
||
|
|
|
||
|
|
#define ARM_EXIT_WITH_ABORT_BIT 31
|
||
|
|
#define ARM_EXCEPTION_CODE(x) ((x) & ~(1U << ARM_EXIT_WITH_ABORT_BIT))
|
||
|
|
#define ARM_EXCEPTION_IS_TRAP(x) \
|
||
|
|
(ARM_EXCEPTION_CODE((x)) == ARM_EXCEPTION_PREF_ABORT || \
|
||
|
|
ARM_EXCEPTION_CODE((x)) == ARM_EXCEPTION_DATA_ABORT || \
|
||
|
|
ARM_EXCEPTION_CODE((x)) == ARM_EXCEPTION_HVC)
|
||
|
|
#define ARM_ABORT_PENDING(x) !!((x) & (1U << ARM_EXIT_WITH_ABORT_BIT))
|
||
|
|
|
||
|
|
#define ARM_EXCEPTION_RESET 0
|
||
|
|
#define ARM_EXCEPTION_UNDEFINED 1
|
||
|
|
#define ARM_EXCEPTION_SOFTWARE 2
|
||
|
|
#define ARM_EXCEPTION_PREF_ABORT 3
|
||
|
|
#define ARM_EXCEPTION_DATA_ABORT 4
|
||
|
|
#define ARM_EXCEPTION_IRQ 5
|
||
|
|
#define ARM_EXCEPTION_FIQ 6
|
||
|
|
#define ARM_EXCEPTION_HVC 7
|
||
|
|
#define ARM_EXCEPTION_HYP_GONE HVC_STUB_ERR
|
||
|
|
/*
|
||
|
|
* The rr_lo_hi macro swaps a pair of registers depending on
|
||
|
|
* current endianness. It is used in conjunction with ldrd and strd
|
||
|
|
* instructions that load/store a 64-bit value from/to memory to/from
|
||
|
|
* a pair of registers which are used with the mrrc and mcrr instructions.
|
||
|
|
* If used with the ldrd/strd instructions, the a1 parameter is the first
|
||
|
|
* source/destination register and the a2 parameter is the second
|
||
|
|
* source/destination register. Note that the ldrd/strd instructions
|
||
|
|
* already swap the bytes within the words correctly according to the
|
||
|
|
* endianness setting, but the order of the registers need to be effectively
|
||
|
|
* swapped when used with the mrrc/mcrr instructions.
|
||
|
|
*/
|
||
|
|
#ifdef CONFIG_CPU_ENDIAN_BE8
|
||
|
|
#define rr_lo_hi(a1, a2) a2, a1
|
||
|
|
#else
|
||
|
|
#define rr_lo_hi(a1, a2) a1, a2
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#define kvm_ksym_ref(kva) (kva)
|
||
|
|
|
||
|
|
#ifndef __ASSEMBLY__
|
||
|
|
struct kvm;
|
||
|
|
struct kvm_vcpu;
|
||
|
|
|
||
|
|
extern char __kvm_hyp_init[];
|
||
|
|
extern char __kvm_hyp_init_end[];
|
||
|
|
|
||
|
|
extern void __kvm_flush_vm_context(void);
|
||
|
|
extern void __kvm_tlb_flush_vmid_ipa(struct kvm *kvm, phys_addr_t ipa);
|
||
|
|
extern void __kvm_tlb_flush_vmid(struct kvm *kvm);
|
||
|
|
extern void __kvm_tlb_flush_local_vmid(struct kvm_vcpu *vcpu);
|
||
|
|
|
||
|
|
extern void __kvm_timer_set_cntvoff(u32 cntvoff_low, u32 cntvoff_high);
|
||
|
|
|
||
|
|
/* no VHE on 32-bit :( */
|
||
|
|
static inline int kvm_vcpu_run_vhe(struct kvm_vcpu *vcpu) { BUG(); return 0; }
|
||
|
|
|
||
|
|
extern int __kvm_vcpu_run_nvhe(struct kvm_vcpu *vcpu);
|
||
|
|
|
||
|
|
extern void __init_stage2_translation(void);
|
||
|
|
|
||
|
|
extern u64 __vgic_v3_get_ich_vtr_el2(void);
|
||
|
|
extern u64 __vgic_v3_read_vmcr(void);
|
||
|
|
extern void __vgic_v3_write_vmcr(u32 vmcr);
|
||
|
|
extern void __vgic_v3_init_lrs(void);
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* __ARM_KVM_ASM_H__ */
|