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   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. 2007
  16  *
  17  * Authors: Hollis Blanchard <hollisb@us.ibm.com>
  18  */
  19
  20 #ifndef __POWERPC_KVM_HOST_H__
  21 #define __POWERPC_KVM_HOST_H__
  22
  23 #include <linux/mutex.h>
  24 #include <linux/timer.h>
  25 #include <linux/types.h>
  26 #include <linux/kvm_types.h>
  27 #include <asm/kvm_asm.h>
  28
  29 #define KVM_MAX_VCPUS 1
  30 #define KVM_MEMORY_SLOTS 32
  31 /* memory slots that does not exposed to userspace */
  32 #define KVM_PRIVATE_MEM_SLOTS 4
  33
  34 #define KVM_COALESCED_MMIO_PAGE_OFFSET 1
  35
  36 /* We don't currently support large pages. */
  37 #define KVM_PAGES_PER_HPAGE (1<<31)
  38
  39 struct kvm;
  40 struct kvm_run;
  41 struct kvm_vcpu;
  42
  43 struct kvm_vm_stat {
  44         u32 remote_tlb_flush;
  45 };
  46
  47 struct kvm_vcpu_stat {
  48         u32 sum_exits;
  49         u32 mmio_exits;
  50         u32 dcr_exits;
  51         u32 signal_exits;
  52         u32 light_exits;
  53         /* Account for special types of light exits: */
  54         u32 itlb_real_miss_exits;
  55         u32 itlb_virt_miss_exits;
  56         u32 dtlb_real_miss_exits;
  57         u32 dtlb_virt_miss_exits;
  58         u32 syscall_exits;
  59         u32 isi_exits;
  60         u32 dsi_exits;
  61         u32 emulated_inst_exits;
  62         u32 dec_exits;
  63         u32 ext_intr_exits;
  64         u32 halt_wakeup;
  65 };
  66
  67 enum kvm_exit_types {
  68         MMIO_EXITS,
  69         DCR_EXITS,
  70         SIGNAL_EXITS,
  71         ITLB_REAL_MISS_EXITS,
  72         ITLB_VIRT_MISS_EXITS,
  73         DTLB_REAL_MISS_EXITS,
  74         DTLB_VIRT_MISS_EXITS,
  75         SYSCALL_EXITS,
  76         ISI_EXITS,
  77         DSI_EXITS,
  78         EMULATED_INST_EXITS,
  79         EMULATED_MTMSRWE_EXITS,
  80         EMULATED_WRTEE_EXITS,
  81         EMULATED_MTSPR_EXITS,
  82         EMULATED_MFSPR_EXITS,
  83         EMULATED_MTMSR_EXITS,
  84         EMULATED_MFMSR_EXITS,
  85         EMULATED_TLBSX_EXITS,
  86         EMULATED_TLBWE_EXITS,
  87         EMULATED_RFI_EXITS,
  88         DEC_EXITS,
  89         EXT_INTR_EXITS,
  90         HALT_WAKEUP,
  91         USR_PR_INST,
  92         FP_UNAVAIL,
  93         DEBUG_EXITS,
  94         TIMEINGUEST,
  95         __NUMBER_OF_KVM_EXIT_TYPES
  96 };
  97
  98 /* allow access to big endian 32bit upper/lower parts and 64bit var */
  99 struct kvmppc_exit_timing {
 100         union {
 101                 u64 tv64;
 102                 struct {
 103                         u32 tbu, tbl;
 104                 } tv32;
 105         };
 106 };
 107
 108 struct kvm_arch {
 109 };
 110
 111 struct kvm_vcpu_arch {
 112         u32 host_stack;
 113         u32 host_pid;
 114
 115         u64 fpr[32];
 116         ulong gpr[32];
 117
 118         ulong pc;
 119         u32 cr;
 120         ulong ctr;
 121         ulong lr;
 122         ulong xer;
 123
 124         ulong msr;
 125         u32 mmucr;
 126         ulong sprg0;
 127         ulong sprg1;
 128         ulong sprg2;
 129         ulong sprg3;
 130         ulong sprg4;
 131         ulong sprg5;
 132         ulong sprg6;
 133         ulong sprg7;
 134         ulong srr0;
 135         ulong srr1;
 136         ulong csrr0;
 137         ulong csrr1;
 138         ulong dsrr0;
 139         ulong dsrr1;
 140         ulong dear;
 141         ulong esr;
 142         u32 dec;
 143         u32 decar;
 144         u32 tbl;
 145         u32 tbu;
 146         u32 tcr;
 147         u32 tsr;
 148         u32 ivor[64];
 149         ulong ivpr;
 150         u32 pir;
 151
 152         u32 shadow_pid;
 153         u32 pid;
 154         u32 swap_pid;
 155
 156         u32 pvr;
 157         u32 ccr0;
 158         u32 ccr1;
 159         u32 dbcr0;
 160         u32 dbcr1;
 161         u32 dbsr;
 162
 163 #ifdef CONFIG_KVM_EXIT_TIMING
 164         struct kvmppc_exit_timing timing_exit;
 165         struct kvmppc_exit_timing timing_last_enter;
 166         u32 last_exit_type;
 167         u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
 168         u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 169         u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 170         u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 171         u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 172         u64 timing_last_exit;
 173         struct dentry *debugfs_exit_timing;
 174 #endif
 175
 176         u32 last_inst;
 177         ulong fault_dear;
 178         ulong fault_esr;
 179         gpa_t paddr_accessed;
 180
 181         u8 io_gpr; /* GPR used as IO source/target */
 182         u8 mmio_is_bigendian;
 183         u8 dcr_needed;
 184         u8 dcr_is_write;
 185
 186         u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
 187
 188         struct timer_list dec_timer;
 189         unsigned long pending_exceptions;
 190 };
 191
 192 #endif /* __POWERPC_KVM_HOST_H__ */