powerpc/kvm/booke.h

0001 /* SPDX-License-Identifier: GPL-2.0-only */
0002 /*
0003  *
0004  * Copyright IBM Corp. 2008
0005  *
0006  * Authors: Hollis Blanchard <hollisb@us.ibm.com>
0007  */
0008
0009 #ifndef __KVM_BOOKE_H__
0010 #define __KVM_BOOKE_H__
0011
0012 #include <linux/types.h>
0013 #include <linux/kvm_host.h>
0014 #include <asm/kvm_ppc.h>
0015 #include <asm/switch_to.h>
0016 #include "timing.h"
0017
0018 /* interrupt priortity ordering */
0019 #define BOOKE_IRQPRIO_DATA_STORAGE 0
0020 #define BOOKE_IRQPRIO_INST_STORAGE 1
0021 #define BOOKE_IRQPRIO_ALIGNMENT 2
0022 #define BOOKE_IRQPRIO_PROGRAM 3
0023 #define BOOKE_IRQPRIO_FP_UNAVAIL 4
0024 #ifdef CONFIG_SPE_POSSIBLE
0025 #define BOOKE_IRQPRIO_SPE_UNAVAIL 5
0026 #define BOOKE_IRQPRIO_SPE_FP_DATA 6
0027 #define BOOKE_IRQPRIO_SPE_FP_ROUND 7
0028 #endif
0029 #ifdef CONFIG_PPC_E500MC
0030 #define BOOKE_IRQPRIO_ALTIVEC_UNAVAIL 5
0031 #define BOOKE_IRQPRIO_ALTIVEC_ASSIST 6
0032 #endif
0033 #define BOOKE_IRQPRIO_SYSCALL 8
0034 #define BOOKE_IRQPRIO_AP_UNAVAIL 9
0035 #define BOOKE_IRQPRIO_DTLB_MISS 10
0036 #define BOOKE_IRQPRIO_ITLB_MISS 11
0037 #define BOOKE_IRQPRIO_MACHINE_CHECK 12
0038 #define BOOKE_IRQPRIO_DEBUG 13
0039 #define BOOKE_IRQPRIO_CRITICAL 14
0040 #define BOOKE_IRQPRIO_WATCHDOG 15
0041 #define BOOKE_IRQPRIO_EXTERNAL 16
0042 #define BOOKE_IRQPRIO_FIT 17
0043 #define BOOKE_IRQPRIO_DECREMENTER 18
0044 #define BOOKE_IRQPRIO_PERFORMANCE_MONITOR 19
0045 /* Internal pseudo-irqprio for level triggered externals */
0046 #define BOOKE_IRQPRIO_EXTERNAL_LEVEL 20
0047 #define BOOKE_IRQPRIO_DBELL 21
0048 #define BOOKE_IRQPRIO_DBELL_CRIT 22
0049 #define BOOKE_IRQPRIO_MAX 23
0050
0051 #define BOOKE_IRQMASK_EE ((1 << BOOKE_IRQPRIO_EXTERNAL_LEVEL) | \
0052               (1 << BOOKE_IRQPRIO_PERFORMANCE_MONITOR) | \
0053               (1 << BOOKE_IRQPRIO_DBELL) | \
0054               (1 << BOOKE_IRQPRIO_DECREMENTER) | \
0055               (1 << BOOKE_IRQPRIO_FIT) | \
0056               (1 << BOOKE_IRQPRIO_EXTERNAL))
0057
0058 #define BOOKE_IRQMASK_CE ((1 << BOOKE_IRQPRIO_DBELL_CRIT) | \
0059               (1 << BOOKE_IRQPRIO_WATCHDOG) | \
0060               (1 << BOOKE_IRQPRIO_CRITICAL))
0061
0062 extern unsigned long kvmppc_booke_handlers;
0063 extern unsigned long kvmppc_booke_handler_addr[];
0064
0065 void kvmppc_set_msr(struct kvm_vcpu *vcpu, u32 new_msr);
0066 void kvmppc_mmu_msr_notify(struct kvm_vcpu *vcpu, u32 old_msr);
0067
0068 void kvmppc_set_epcr(struct kvm_vcpu *vcpu, u32 new_epcr);
0069 void kvmppc_set_tcr(struct kvm_vcpu *vcpu, u32 new_tcr);
0070 void kvmppc_set_tsr_bits(struct kvm_vcpu *vcpu, u32 tsr_bits);
0071 void kvmppc_clr_tsr_bits(struct kvm_vcpu *vcpu, u32 tsr_bits);
0072
0073 int kvmppc_booke_emulate_op(struct kvm_vcpu *vcpu,
0074                             unsigned int inst, int *advance);
0075 int kvmppc_booke_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val);
0076 int kvmppc_booke_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val);
0077
0078 /* low-level asm code to transfer guest state */
0079 void kvmppc_load_guest_spe(struct kvm_vcpu *vcpu);
0080 void kvmppc_save_guest_spe(struct kvm_vcpu *vcpu);
0081
0082 /* high-level function, manages flags, host state */
0083 void kvmppc_vcpu_disable_spe(struct kvm_vcpu *vcpu);
0084
0085 void kvmppc_booke_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
0086 void kvmppc_booke_vcpu_put(struct kvm_vcpu *vcpu);
0087
0088 enum int_class {
0089     INT_CLASS_NONCRIT,
0090     INT_CLASS_CRIT,
0091     INT_CLASS_MC,
0092     INT_CLASS_DBG,
0093 };
0094
0095 void kvmppc_set_pending_interrupt(struct kvm_vcpu *vcpu, enum int_class type);
0096
0097 extern int kvmppc_core_emulate_op_e500(struct kvm_vcpu *vcpu,
0098                        unsigned int inst, int *advance);
0099 extern int kvmppc_core_emulate_mtspr_e500(struct kvm_vcpu *vcpu, int sprn,
0100                       ulong spr_val);
0101 extern int kvmppc_core_emulate_mfspr_e500(struct kvm_vcpu *vcpu, int sprn,
0102                       ulong *spr_val);
0103 extern int kvmppc_core_emulate_mtspr_e500(struct kvm_vcpu *vcpu, int sprn,
0104                       ulong spr_val);
0105 extern int kvmppc_core_emulate_mfspr_e500(struct kvm_vcpu *vcpu, int sprn,
0106                       ulong *spr_val);
0107
0108 static inline void kvmppc_clear_dbsr(void)
0109 {
0110     mtspr(SPRN_DBSR, mfspr(SPRN_DBSR));
0111 }
0112 #endif /* __KVM_BOOKE_H__ */