LXR linux/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
  73extern unsigned long kvmppc_booke_handlers;
  74extern unsigned long kvmppc_booke_handler_addr[];
  75
  76void kvmppc_set_msr(struct kvm_vcpu *vcpu, u32 new_msr);
  77void kvmppc_mmu_msr_notify(struct kvm_vcpu *vcpu, u32 old_msr);
  78
  79void kvmppc_set_epcr(struct kvm_vcpu *vcpu, u32 new_epcr);
  80void kvmppc_set_tcr(struct kvm_vcpu *vcpu, u32 new_tcr);
  81void kvmppc_set_tsr_bits(struct kvm_vcpu *vcpu, u32 tsr_bits);
  82void kvmppc_clr_tsr_bits(struct kvm_vcpu *vcpu, u32 tsr_bits);
  83
  84int kvmppc_booke_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
  85                            unsigned int inst, int *advance);
  86int kvmppc_booke_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val);
  87int kvmppc_booke_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val);
  88
  89/* low-level asm code to transfer guest state */
  90void kvmppc_load_guest_spe(struct kvm_vcpu *vcpu);
  91void kvmppc_save_guest_spe(struct kvm_vcpu *vcpu);
  92
  93/* high-level function, manages flags, host state */
  94void kvmppc_vcpu_disable_spe(struct kvm_vcpu *vcpu);
  95
  96void kvmppc_booke_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
  97void kvmppc_booke_vcpu_put(struct kvm_vcpu *vcpu);
  98
  99enum int_class {
 100        INT_CLASS_NONCRIT,
 101        INT_CLASS_CRIT,
 102        INT_CLASS_MC,
 103        INT_CLASS_DBG,
 104};
 105
 106void kvmppc_set_pending_interrupt(struct kvm_vcpu *vcpu, enum int_class type);
 107
 108extern void kvmppc_mmu_destroy_e500(struct kvm_vcpu *vcpu);
 109extern int kvmppc_core_emulate_op_e500(struct kvm_run *run,
 110                                       struct kvm_vcpu *vcpu,
 111                                       unsigned int inst, int *advance);
 112extern int kvmppc_core_emulate_mtspr_e500(struct kvm_vcpu *vcpu, int sprn,
 113                                          ulong spr_val);
 114extern int kvmppc_core_emulate_mfspr_e500(struct kvm_vcpu *vcpu, int sprn,
 115                                          ulong *spr_val);
 116extern void kvmppc_mmu_destroy_e500(struct kvm_vcpu *vcpu);
 117extern int kvmppc_core_emulate_op_e500(struct kvm_run *run,
 118                                       struct kvm_vcpu *vcpu,
 119                                       unsigned int inst, int *advance);
 120extern int kvmppc_core_emulate_mtspr_e500(struct kvm_vcpu *vcpu, int sprn,
 121                                          ulong spr_val);
 122extern int kvmppc_core_emulate_mfspr_e500(struct kvm_vcpu *vcpu, int sprn,
 123                                          ulong *spr_val);
 124
 125static inline void kvmppc_clear_dbsr(void)
 126{
 127        mtspr(SPRN_DBSR, mfspr(SPRN_DBSR));
 128}
 129#endif /* __KVM_BOOKE_H__ */
 130