arch/powerpc/kvm/booke.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  *
   4  * Copyright IBM Corp. 2008
   5  *
   6  * Authors: Hollis Blanchard <hollisb@us.ibm.com>
   7  */
   8
   9 #ifndef __KVM_BOOKE_H__
  10 #define __KVM_BOOKE_H__
  11
  12 #include <linux/types.h>
  13 #include <linux/kvm_host.h>
  14 #include <asm/kvm_ppc.h>
  15 #include <asm/switch_to.h>
  16 #include "timing.h"
  17
  18 /* interrupt priortity ordering */
  19 #define BOOKE_IRQPRIO_DATA_STORAGE 0
  20 #define BOOKE_IRQPRIO_INST_STORAGE 1
  21 #define BOOKE_IRQPRIO_ALIGNMENT 2
  22 #define BOOKE_IRQPRIO_PROGRAM 3
  23 #define BOOKE_IRQPRIO_FP_UNAVAIL 4
  24 #ifdef CONFIG_SPE_POSSIBLE
  25 #define BOOKE_IRQPRIO_SPE_UNAVAIL 5
  26 #define BOOKE_IRQPRIO_SPE_FP_DATA 6
  27 #define BOOKE_IRQPRIO_SPE_FP_ROUND 7
  28 #endif
  29 #ifdef CONFIG_PPC_E500MC
  30 #define BOOKE_IRQPRIO_ALTIVEC_UNAVAIL 5
  31 #define BOOKE_IRQPRIO_ALTIVEC_ASSIST 6
  32 #endif
  33 #define BOOKE_IRQPRIO_SYSCALL 8
  34 #define BOOKE_IRQPRIO_AP_UNAVAIL 9
  35 #define BOOKE_IRQPRIO_DTLB_MISS 10
  36 #define BOOKE_IRQPRIO_ITLB_MISS 11
  37 #define BOOKE_IRQPRIO_MACHINE_CHECK 12
  38 #define BOOKE_IRQPRIO_DEBUG 13
  39 #define BOOKE_IRQPRIO_CRITICAL 14
  40 #define BOOKE_IRQPRIO_WATCHDOG 15
  41 #define BOOKE_IRQPRIO_EXTERNAL 16
  42 #define BOOKE_IRQPRIO_FIT 17
  43 #define BOOKE_IRQPRIO_DECREMENTER 18
  44 #define BOOKE_IRQPRIO_PERFORMANCE_MONITOR 19
  45 /* Internal pseudo-irqprio for level triggered externals */
  46 #define BOOKE_IRQPRIO_EXTERNAL_LEVEL 20
  47 #define BOOKE_IRQPRIO_DBELL 21
  48 #define BOOKE_IRQPRIO_DBELL_CRIT 22
  49 #define BOOKE_IRQPRIO_MAX 23
  50
  51 #define BOOKE_IRQMASK_EE ((1 << BOOKE_IRQPRIO_EXTERNAL_LEVEL) | \
  52                           (1 << BOOKE_IRQPRIO_PERFORMANCE_MONITOR) | \
  53                           (1 << BOOKE_IRQPRIO_DBELL) | \
  54                           (1 << BOOKE_IRQPRIO_DECREMENTER) | \
  55                           (1 << BOOKE_IRQPRIO_FIT) | \
  56                           (1 << BOOKE_IRQPRIO_EXTERNAL))
  57
  58 #define BOOKE_IRQMASK_CE ((1 << BOOKE_IRQPRIO_DBELL_CRIT) | \
  59                           (1 << BOOKE_IRQPRIO_WATCHDOG) | \
  60                           (1 << BOOKE_IRQPRIO_CRITICAL))
  61
  62 extern unsigned long kvmppc_booke_handlers;
  63 extern unsigned long kvmppc_booke_handler_addr[];
  64
  65 void kvmppc_set_msr(struct kvm_vcpu *vcpu, u32 new_msr);
  66 void kvmppc_mmu_msr_notify(struct kvm_vcpu *vcpu, u32 old_msr);
  67
  68 void kvmppc_set_epcr(struct kvm_vcpu *vcpu, u32 new_epcr);
  69 void kvmppc_set_tcr(struct kvm_vcpu *vcpu, u32 new_tcr);
  70 void kvmppc_set_tsr_bits(struct kvm_vcpu *vcpu, u32 tsr_bits);
  71 void kvmppc_clr_tsr_bits(struct kvm_vcpu *vcpu, u32 tsr_bits);
  72
  73 int kvmppc_booke_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
  74                             unsigned int inst, int *advance);
  75 int kvmppc_booke_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val);
  76 int kvmppc_booke_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val);
  77
  78 /* low-level asm code to transfer guest state */
  79 void kvmppc_load_guest_spe(struct kvm_vcpu *vcpu);
  80 void kvmppc_save_guest_spe(struct kvm_vcpu *vcpu);
  81
  82 /* high-level function, manages flags, host state */
  83 void kvmppc_vcpu_disable_spe(struct kvm_vcpu *vcpu);
  84
  85 void kvmppc_booke_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
  86 void kvmppc_booke_vcpu_put(struct kvm_vcpu *vcpu);
  87
  88 enum int_class {
  89         INT_CLASS_NONCRIT,
  90         INT_CLASS_CRIT,
  91         INT_CLASS_MC,
  92         INT_CLASS_DBG,
  93 };
  94
  95 void kvmppc_set_pending_interrupt(struct kvm_vcpu *vcpu, enum int_class type);
  96
  97 extern void kvmppc_mmu_destroy_e500(struct kvm_vcpu *vcpu);
  98 extern int kvmppc_core_emulate_op_e500(struct kvm_run *run,
  99                                        struct kvm_vcpu *vcpu,
 100                                        unsigned int inst, int *advance);
 101 extern int kvmppc_core_emulate_mtspr_e500(struct kvm_vcpu *vcpu, int sprn,
 102                                           ulong spr_val);
 103 extern int kvmppc_core_emulate_mfspr_e500(struct kvm_vcpu *vcpu, int sprn,
 104                                           ulong *spr_val);
 105 extern void kvmppc_mmu_destroy_e500(struct kvm_vcpu *vcpu);
 106 extern int kvmppc_core_emulate_op_e500(struct kvm_run *run,
 107                                        struct kvm_vcpu *vcpu,
 108                                        unsigned int inst, int *advance);
 109 extern int kvmppc_core_emulate_mtspr_e500(struct kvm_vcpu *vcpu, int sprn,
 110                                           ulong spr_val);
 111 extern int kvmppc_core_emulate_mfspr_e500(struct kvm_vcpu *vcpu, int sprn,
 112                                           ulong *spr_val);
 113
 114 static inline void kvmppc_clear_dbsr(void)
 115 {
 116         mtspr(SPRN_DBSR, mfspr(SPRN_DBSR));
 117 }
 118 #endif /* __KVM_BOOKE_H__ */