arch/powerpc/include/asm/kvm_ppc.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 __POWERPC_KVM_PPC_H__
  21 #define __POWERPC_KVM_PPC_H__
  22
  23 /* This file exists just so we can dereference kvm_vcpu, avoiding nested header
  24  * dependencies. */
  25
  26 #include <linux/mutex.h>
  27 #include <linux/timer.h>
  28 #include <linux/types.h>
  29 #include <linux/kvm_types.h>
  30 #include <linux/kvm_host.h>
  31
  32 enum emulation_result {
  33         EMULATE_DONE,         /* no further processing */
  34         EMULATE_DO_MMIO,      /* kvm_run filled with MMIO request */
  35         EMULATE_DO_DCR,       /* kvm_run filled with DCR request */
  36         EMULATE_FAIL,         /* can't emulate this instruction */
  37 };
  38
  39 extern int __kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu);
  40 extern char kvmppc_handlers_start[];
  41 extern unsigned long kvmppc_handler_len;
  42
  43 extern void kvmppc_dump_vcpu(struct kvm_vcpu *vcpu);
  44 extern int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
  45                               unsigned int rt, unsigned int bytes,
  46                               int is_bigendian);
  47 extern int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
  48                                u32 val, unsigned int bytes, int is_bigendian);
  49
  50 extern int kvmppc_emulate_instruction(struct kvm_run *run,
  51                                       struct kvm_vcpu *vcpu);
  52 extern int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu);
  53 extern void kvmppc_emulate_dec(struct kvm_vcpu *vcpu);
  54
  55 /* Core-specific hooks */
  56
  57 extern void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr,
  58                            unsigned int gtlb_idx);
  59 extern void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode);
  60 extern void kvmppc_mmu_switch_pid(struct kvm_vcpu *vcpu, u32 pid);
  61 extern void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu);
  62 extern int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr);
  63 extern int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr);
  64 extern gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int gtlb_index,
  65                               gva_t eaddr);
  66 extern void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu);
  67 extern void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu);
  68
  69 extern struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm,
  70                                                 unsigned int id);
  71 extern void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu);
  72 extern int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu);
  73 extern int kvmppc_core_check_processor_compat(void);
  74 extern int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu,
  75                                       struct kvm_translation *tr);
  76
  77 extern void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
  78 extern void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu);
  79
  80 extern void kvmppc_core_deliver_interrupts(struct kvm_vcpu *vcpu);
  81 extern int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu);
  82 extern void kvmppc_core_queue_program(struct kvm_vcpu *vcpu);
  83 extern void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu);
  84 extern void kvmppc_core_queue_external(struct kvm_vcpu *vcpu,
  85                                        struct kvm_interrupt *irq);
  86
  87 extern int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
  88                                   unsigned int op, int *advance);
  89 extern int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs);
  90 extern int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt);
  91
  92 extern int kvmppc_booke_init(void);
  93 extern void kvmppc_booke_exit(void);
  94
  95 extern void kvmppc_core_destroy_mmu(struct kvm_vcpu *vcpu);
  96
  97 #endif /* __POWERPC_KVM_PPC_H__ */