arch/powerpc/kvm/booke.h

   1 /*
   2  * This program is free software; you can redistribute it and/or modify
   3  * it under the terms of the GNU General Public License, version 2, as
   4  * published by the Free Software Foundation.
   5  *
   6  * This program is distributed in the hope that it will be useful,
   7  * but WITHOUT ANY WARRANTY; without even the implied warranty of
   8  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   9  * GNU General Public License for more details.
  10  *
  11  * You should have received a copy of the GNU General Public License
  12  * along with this program; if not, write to the Free Software
  13  * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  14  *
  15  * Copyright IBM Corp. 2008
  16  *
  17  * Authors: Hollis Blanchard <hollisb@us.ibm.com>
  18  */
  19
  20 #ifndef __KVM_BOOKE_H__
  21 #define __KVM_BOOKE_H__
  22
  23 #include <linux/types.h>
  24 #include <linux/kvm_host.h>
  25 #include <asm/kvm_ppc.h>
  26 #include <asm/switch_to.h>
  27 #include "timing.h"
  28
  29 /* interrupt priortity ordering */
  30 #define BOOKE_IRQPRIO_DATA_STORAGE 0
  31 #define BOOKE_IRQPRIO_INST_STORAGE 1
  32 #define BOOKE_IRQPRIO_ALIGNMENT 2
  33 #define BOOKE_IRQPRIO_PROGRAM 3
  34 #define BOOKE_IRQPRIO_FP_UNAVAIL 4
  35 #ifdef CONFIG_SPE_POSSIBLE
  36 #define BOOKE_IRQPRIO_SPE_UNAVAIL 5
  37 #define BOOKE_IRQPRIO_SPE_FP_DATA 6
  38 #define BOOKE_IRQPRIO_SPE_FP_ROUND 7
  39 #endif
  40 #ifdef CONFIG_PPC_E500MC
  41 #define BOOKE_IRQPRIO_ALTIVEC_UNAVAIL 5
  42 #define BOOKE_IRQPRIO_ALTIVEC_ASSIST 6
  43 #endif
  44 #define BOOKE_IRQPRIO_SYSCALL 8
  45 #define BOOKE_IRQPRIO_AP_UNAVAIL 9
  46 #define BOOKE_IRQPRIO_DTLB_MISS 10
  47 #define BOOKE_IRQPRIO_ITLB_MISS 11
  48 #define BOOKE_IRQPRIO_MACHINE_CHECK 12
  49 #define BOOKE_IRQPRIO_DEBUG 13
  50 #define BOOKE_IRQPRIO_CRITICAL 14
  51 #define BOOKE_IRQPRIO_WATCHDOG 15
  52 #define BOOKE_IRQPRIO_EXTERNAL 16
  53 #define BOOKE_IRQPRIO_FIT 17
  54 #define BOOKE_IRQPRIO_DECREMENTER 18
  55 #define BOOKE_IRQPRIO_PERFORMANCE_MONITOR 19
  56 /* Internal pseudo-irqprio for level triggered externals */
  57 #define BOOKE_IRQPRIO_EXTERNAL_LEVEL 20
  58 #define BOOKE_IRQPRIO_DBELL 21
  59 #define BOOKE_IRQPRIO_DBELL_CRIT 22
  60 #define BOOKE_IRQPRIO_MAX 23
  61
  62 #define BOOKE_IRQMASK_EE ((1 << BOOKE_IRQPRIO_EXTERNAL_LEVEL) | \
  63                           (1 << BOOKE_IRQPRIO_PERFORMANCE_MONITOR) | \
  64                           (1 << BOOKE_IRQPRIO_DBELL) | \
  65                           (1 << BOOKE_IRQPRIO_DECREMENTER) | \
  66                           (1 << BOOKE_IRQPRIO_FIT) | \
  67                           (1 << BOOKE_IRQPRIO_EXTERNAL))
  68
  69 #define BOOKE_IRQMASK_CE ((1 << BOOKE_IRQPRIO_DBELL_CRIT) | \
  70                           (1 << BOOKE_IRQPRIO_WATCHDOG) | \
  71                           (1 << BOOKE_IRQPRIO_CRITICAL))
  72
  73 extern unsigned long kvmppc_booke_handlers;
  74 extern unsigned long kvmppc_booke_handler_addr[];
  75
  76 void kvmppc_set_msr(struct kvm_vcpu *vcpu, u32 new_msr);
  77 void kvmppc_mmu_msr_notify(struct kvm_vcpu *vcpu, u32 old_msr);
  78
  79 void kvmppc_set_epcr(struct kvm_vcpu *vcpu, u32 new_epcr);
  80 void kvmppc_set_tcr(struct kvm_vcpu *vcpu, u32 new_tcr);
  81 void kvmppc_set_tsr_bits(struct kvm_vcpu *vcpu, u32 tsr_bits);
  82 void kvmppc_clr_tsr_bits(struct kvm_vcpu *vcpu, u32 tsr_bits);
  83
  84 int kvmppc_booke_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
  85                             unsigned int inst, int *advance);
  86 int kvmppc_booke_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val);
  87 int kvmppc_booke_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val);
  88
  89 /* low-level asm code to transfer guest state */
  90 void kvmppc_load_guest_spe(struct kvm_vcpu *vcpu);
  91 void kvmppc_save_guest_spe(struct kvm_vcpu *vcpu);
  92
  93 /* high-level function, manages flags, host state */
  94 void kvmppc_vcpu_disable_spe(struct kvm_vcpu *vcpu);
  95
  96 void kvmppc_booke_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
  97 void kvmppc_booke_vcpu_put(struct kvm_vcpu *vcpu);
  98
  99 enum int_class {
 100         INT_CLASS_NONCRIT,
 101         INT_CLASS_CRIT,
 102         INT_CLASS_MC,
 103         INT_CLASS_DBG,
 104 };
 105
 106 void kvmppc_set_pending_interrupt(struct kvm_vcpu *vcpu, enum int_class type);
 107
 108 extern void kvmppc_mmu_destroy_e500(struct kvm_vcpu *vcpu);
 109 extern int kvmppc_core_emulate_op_e500(struct kvm_run *run,
 110                                        struct kvm_vcpu *vcpu,
 111                                        unsigned int inst, int *advance);
 112 extern int kvmppc_core_emulate_mtspr_e500(struct kvm_vcpu *vcpu, int sprn,
 113                                           ulong spr_val);
 114 extern int kvmppc_core_emulate_mfspr_e500(struct kvm_vcpu *vcpu, int sprn,
 115                                           ulong *spr_val);
 116 extern void kvmppc_mmu_destroy_e500(struct kvm_vcpu *vcpu);
 117 extern int kvmppc_core_emulate_op_e500(struct kvm_run *run,
 118                                        struct kvm_vcpu *vcpu,
 119                                        unsigned int inst, int *advance);
 120 extern int kvmppc_core_emulate_mtspr_e500(struct kvm_vcpu *vcpu, int sprn,
 121                                           ulong spr_val);
 122 extern int kvmppc_core_emulate_mfspr_e500(struct kvm_vcpu *vcpu, int sprn,
 123                                           ulong *spr_val);
 124
 125 static inline void kvmppc_clear_dbsr(void)
 126 {
 127         mtspr(SPRN_DBSR, mfspr(SPRN_DBSR));
 128 }
 129 #endif /* __KVM_BOOKE_H__ */