| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| 2 | /* |
| 3 | * |
| 4 | * Copyright SUSE Linux Products GmbH 2010 |
| 5 | * |
| 6 | * Authors: Alexander Graf <agraf@suse.de> |
| 7 | */ |
| 8 | |
| 9 | #ifndef __ASM_KVM_BOOKE_H__ |
| 10 | #define __ASM_KVM_BOOKE_H__ |
| 11 | |
| 12 | #include <linux/types.h> |
| 13 | #include <linux/kvm_host.h> |
| 14 | |
| 15 | /* |
| 16 | * Number of available lpids. Only the low-order 6 bits of LPID rgister are |
| 17 | * implemented on e500mc+ cores. |
| 18 | */ |
| 19 | #define KVMPPC_NR_LPIDS 64 |
| 20 | |
| 21 | #define KVMPPC_INST_EHPRIV 0x7c00021c |
| 22 | #define EHPRIV_OC_SHIFT 11 |
| 23 | /* "ehpriv 1" : ehpriv with OC = 1 is used for debug emulation */ |
| 24 | #define EHPRIV_OC_DEBUG 1 |
| 25 | |
| 26 | static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val) |
| 27 | { |
| 28 | vcpu->arch.regs.gpr[num] = val; |
| 29 | } |
| 30 | |
| 31 | static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num) |
| 32 | { |
| 33 | return vcpu->arch.regs.gpr[num]; |
| 34 | } |
| 35 | |
| 36 | static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val) |
| 37 | { |
| 38 | vcpu->arch.regs.ccr = val; |
| 39 | } |
| 40 | |
| 41 | static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu) |
| 42 | { |
| 43 | return vcpu->arch.regs.ccr; |
| 44 | } |
| 45 | |
| 46 | static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, ulong val) |
| 47 | { |
| 48 | vcpu->arch.regs.xer = val; |
| 49 | } |
| 50 | |
| 51 | static inline ulong kvmppc_get_xer(struct kvm_vcpu *vcpu) |
| 52 | { |
| 53 | return vcpu->arch.regs.xer; |
| 54 | } |
| 55 | |
| 56 | static inline bool kvmppc_need_byteswap(struct kvm_vcpu *vcpu) |
| 57 | { |
| 58 | /* XXX Would need to check TLB entry */ |
| 59 | return false; |
| 60 | } |
| 61 | |
| 62 | static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val) |
| 63 | { |
| 64 | vcpu->arch.regs.ctr = val; |
| 65 | } |
| 66 | |
| 67 | static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu) |
| 68 | { |
| 69 | return vcpu->arch.regs.ctr; |
| 70 | } |
| 71 | |
| 72 | static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val) |
| 73 | { |
| 74 | vcpu->arch.regs.link = val; |
| 75 | } |
| 76 | |
| 77 | static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu) |
| 78 | { |
| 79 | return vcpu->arch.regs.link; |
| 80 | } |
| 81 | |
| 82 | static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val) |
| 83 | { |
| 84 | vcpu->arch.regs.nip = val; |
| 85 | } |
| 86 | |
| 87 | static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu) |
| 88 | { |
| 89 | return vcpu->arch.regs.nip; |
| 90 | } |
| 91 | |
| 92 | static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu) |
| 93 | { |
| 94 | return vcpu->arch.fault_dear; |
| 95 | } |
| 96 | |
| 97 | static inline bool kvmppc_supports_magic_page(struct kvm_vcpu *vcpu) |
| 98 | { |
| 99 | /* Magic page is only supported on e500v2 */ |
| 100 | #ifdef CONFIG_KVM_E500V2 |
| 101 | return true; |
| 102 | #else |
| 103 | return false; |
| 104 | #endif |
| 105 | } |
| 106 | #endif /* __ASM_KVM_BOOKE_H__ */ |