arch/powerpc/include/asm/kvm_host.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. 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 struct kvmppc_44x_tlbe {
  68         u32 tid; /* Only the low 8 bits are used. */
  69         u32 word0;
  70         u32 word1;
  71         u32 word2;
  72 };
  73
  74 enum kvm_exit_types {
  75         MMIO_EXITS,
  76         DCR_EXITS,
  77         SIGNAL_EXITS,
  78         ITLB_REAL_MISS_EXITS,
  79         ITLB_VIRT_MISS_EXITS,
  80         DTLB_REAL_MISS_EXITS,
  81         DTLB_VIRT_MISS_EXITS,
  82         SYSCALL_EXITS,
  83         ISI_EXITS,
  84         DSI_EXITS,
  85         EMULATED_INST_EXITS,
  86         EMULATED_MTMSRWE_EXITS,
  87         EMULATED_WRTEE_EXITS,
  88         EMULATED_MTSPR_EXITS,
  89         EMULATED_MFSPR_EXITS,
  90         EMULATED_MTMSR_EXITS,
  91         EMULATED_MFMSR_EXITS,
  92         EMULATED_TLBSX_EXITS,
  93         EMULATED_TLBWE_EXITS,
  94         EMULATED_RFI_EXITS,
  95         DEC_EXITS,
  96         EXT_INTR_EXITS,
  97         HALT_WAKEUP,
  98         USR_PR_INST,
  99         FP_UNAVAIL,
 100         DEBUG_EXITS,
 101         TIMEINGUEST,
 102         __NUMBER_OF_KVM_EXIT_TYPES
 103 };
 104
 105 /* allow access to big endian 32bit upper/lower parts and 64bit var */
 106 struct kvmppc_exit_timing {
 107         union {
 108                 u64 tv64;
 109                 struct {
 110                         u32 tbu, tbl;
 111                 } tv32;
 112         };
 113 };
 114
 115 struct kvm_arch {
 116 };
 117
 118 struct kvm_vcpu_arch {
 119         u32 host_stack;
 120         u32 host_pid;
 121         u32 host_dbcr0;
 122         u32 host_dbcr1;
 123         u32 host_dbcr2;
 124         u32 host_iac[4];
 125         u32 host_msr;
 126
 127         u64 fpr[32];
 128         ulong gpr[32];
 129
 130         ulong pc;
 131         u32 cr;
 132         ulong ctr;
 133         ulong lr;
 134         ulong xer;
 135
 136         ulong msr;
 137         u32 mmucr;
 138         ulong sprg0;
 139         ulong sprg1;
 140         ulong sprg2;
 141         ulong sprg3;
 142         ulong sprg4;
 143         ulong sprg5;
 144         ulong sprg6;
 145         ulong sprg7;
 146         ulong srr0;
 147         ulong srr1;
 148         ulong csrr0;
 149         ulong csrr1;
 150         ulong dsrr0;
 151         ulong dsrr1;
 152         ulong dear;
 153         ulong esr;
 154         u32 dec;
 155         u32 decar;
 156         u32 tbl;
 157         u32 tbu;
 158         u32 tcr;
 159         u32 tsr;
 160         u32 ivor[16];
 161         ulong ivpr;
 162         u32 pir;
 163
 164         u32 shadow_pid;
 165         u32 pid;
 166         u32 swap_pid;
 167
 168         u32 pvr;
 169         u32 ccr0;
 170         u32 ccr1;
 171         u32 dbcr0;
 172         u32 dbcr1;
 173
 174 #ifdef CONFIG_KVM_EXIT_TIMING
 175         struct kvmppc_exit_timing timing_exit;
 176         struct kvmppc_exit_timing timing_last_enter;
 177         u32 last_exit_type;
 178         u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
 179         u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 180         u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 181         u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 182         u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
 183         u64 timing_last_exit;
 184         struct dentry *debugfs_exit_timing;
 185 #endif
 186
 187         u32 last_inst;
 188         ulong fault_dear;
 189         ulong fault_esr;
 190         gpa_t paddr_accessed;
 191
 192         u8 io_gpr; /* GPR used as IO source/target */
 193         u8 mmio_is_bigendian;
 194         u8 dcr_needed;
 195         u8 dcr_is_write;
 196
 197         u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
 198
 199         struct timer_list dec_timer;
 200         unsigned long pending_exceptions;
 201 };
 202
 203 struct kvm_guest_debug {
 204         int enabled;
 205         unsigned long bp[4];
 206         int singlestep;
 207 };
 208
 209 #endif /* __POWERPC_KVM_HOST_H__ */