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749cf76c CD |
1 | /* |
2 | * Copyright (C) 2012 - Virtual Open Systems and Columbia University | |
3 | * Author: Christoffer Dall <c.dall@virtualopensystems.com> | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License, version 2, as | |
7 | * published by the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program; if not, write to the Free Software | |
16 | * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. | |
17 | */ | |
18 | ||
19 | #ifndef __ARM_KVM_EMULATE_H__ | |
20 | #define __ARM_KVM_EMULATE_H__ | |
21 | ||
22 | #include <linux/kvm_host.h> | |
23 | #include <asm/kvm_asm.h> | |
45e96ea6 | 24 | #include <asm/kvm_mmio.h> |
7393b599 | 25 | #include <asm/kvm_arm.h> |
749cf76c | 26 | |
db730d8d MZ |
27 | unsigned long *vcpu_reg(struct kvm_vcpu *vcpu, u8 reg_num); |
28 | unsigned long *vcpu_spsr(struct kvm_vcpu *vcpu); | |
749cf76c | 29 | |
5b3e5e5b CD |
30 | int kvm_handle_wfi(struct kvm_vcpu *vcpu, struct kvm_run *run); |
31 | void kvm_skip_instr(struct kvm_vcpu *vcpu, bool is_wide_instr); | |
32 | void kvm_inject_undefined(struct kvm_vcpu *vcpu); | |
33 | void kvm_inject_dabt(struct kvm_vcpu *vcpu, unsigned long addr); | |
34 | void kvm_inject_pabt(struct kvm_vcpu *vcpu, unsigned long addr); | |
35 | ||
aa024c2f MZ |
36 | static inline bool vcpu_mode_is_32bit(struct kvm_vcpu *vcpu) |
37 | { | |
38 | return 1; | |
39 | } | |
40 | ||
db730d8d | 41 | static inline unsigned long *vcpu_pc(struct kvm_vcpu *vcpu) |
749cf76c | 42 | { |
db730d8d | 43 | return &vcpu->arch.regs.usr_regs.ARM_pc; |
749cf76c CD |
44 | } |
45 | ||
db730d8d | 46 | static inline unsigned long *vcpu_cpsr(struct kvm_vcpu *vcpu) |
749cf76c | 47 | { |
db730d8d | 48 | return &vcpu->arch.regs.usr_regs.ARM_cpsr; |
749cf76c CD |
49 | } |
50 | ||
aa024c2f MZ |
51 | static inline void vcpu_set_thumb(struct kvm_vcpu *vcpu) |
52 | { | |
53 | *vcpu_cpsr(vcpu) |= PSR_T_BIT; | |
54 | } | |
55 | ||
749cf76c CD |
56 | static inline bool mode_has_spsr(struct kvm_vcpu *vcpu) |
57 | { | |
58 | unsigned long cpsr_mode = vcpu->arch.regs.usr_regs.ARM_cpsr & MODE_MASK; | |
59 | return (cpsr_mode > USR_MODE && cpsr_mode < SYSTEM_MODE); | |
60 | } | |
61 | ||
62 | static inline bool vcpu_mode_priv(struct kvm_vcpu *vcpu) | |
63 | { | |
64 | unsigned long cpsr_mode = vcpu->arch.regs.usr_regs.ARM_cpsr & MODE_MASK; | |
65 | return cpsr_mode > USR_MODE;; | |
66 | } | |
67 | ||
45e96ea6 CD |
68 | static inline bool kvm_vcpu_reg_is_pc(struct kvm_vcpu *vcpu, int reg) |
69 | { | |
70 | return reg == 15; | |
71 | } | |
72 | ||
7393b599 MZ |
73 | static inline u32 kvm_vcpu_get_hsr(struct kvm_vcpu *vcpu) |
74 | { | |
75 | return vcpu->arch.fault.hsr; | |
76 | } | |
77 | ||
78 | static inline unsigned long kvm_vcpu_get_hfar(struct kvm_vcpu *vcpu) | |
79 | { | |
80 | return vcpu->arch.fault.hxfar; | |
81 | } | |
82 | ||
83 | static inline phys_addr_t kvm_vcpu_get_fault_ipa(struct kvm_vcpu *vcpu) | |
84 | { | |
85 | return ((phys_addr_t)vcpu->arch.fault.hpfar & HPFAR_MASK) << 8; | |
86 | } | |
87 | ||
88 | static inline unsigned long kvm_vcpu_get_hyp_pc(struct kvm_vcpu *vcpu) | |
89 | { | |
90 | return vcpu->arch.fault.hyp_pc; | |
91 | } | |
92 | ||
4a1df28a MZ |
93 | static inline bool kvm_vcpu_dabt_isvalid(struct kvm_vcpu *vcpu) |
94 | { | |
95 | return kvm_vcpu_get_hsr(vcpu) & HSR_ISV; | |
96 | } | |
97 | ||
749cf76c | 98 | #endif /* __ARM_KVM_EMULATE_H__ */ |