kvm_host.h 6.9 KB

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  1. /*
  2. * definition for kernel virtual machines on s390
  3. *
  4. * Copyright IBM Corp. 2008, 2009
  5. *
  6. * This program is free software; you can redistribute it and/or modify
  7. * it under the terms of the GNU General Public License (version 2 only)
  8. * as published by the Free Software Foundation.
  9. *
  10. * Author(s): Carsten Otte <cotte@de.ibm.com>
  11. */
  12. #ifndef ASM_KVM_HOST_H
  13. #define ASM_KVM_HOST_H
  14. #include <linux/hrtimer.h>
  15. #include <linux/interrupt.h>
  16. #include <linux/kvm_host.h>
  17. #include <asm/debug.h>
  18. #include <asm/cpu.h>
  19. #define KVM_MAX_VCPUS 64
  20. #define KVM_USER_MEM_SLOTS 32
  21. struct sca_entry {
  22. atomic_t scn;
  23. __u32 reserved;
  24. __u64 sda;
  25. __u64 reserved2[2];
  26. } __attribute__((packed));
  27. struct sca_block {
  28. __u64 ipte_control;
  29. __u64 reserved[5];
  30. __u64 mcn;
  31. __u64 reserved2;
  32. struct sca_entry cpu[64];
  33. } __attribute__((packed));
  34. #define KVM_NR_PAGE_SIZES 2
  35. #define KVM_HPAGE_GFN_SHIFT(x) (((x) - 1) * 8)
  36. #define KVM_HPAGE_SHIFT(x) (PAGE_SHIFT + KVM_HPAGE_GFN_SHIFT(x))
  37. #define KVM_HPAGE_SIZE(x) (1UL << KVM_HPAGE_SHIFT(x))
  38. #define KVM_HPAGE_MASK(x) (~(KVM_HPAGE_SIZE(x) - 1))
  39. #define KVM_PAGES_PER_HPAGE(x) (KVM_HPAGE_SIZE(x) / PAGE_SIZE)
  40. #define CPUSTAT_STOPPED 0x80000000
  41. #define CPUSTAT_WAIT 0x10000000
  42. #define CPUSTAT_ECALL_PEND 0x08000000
  43. #define CPUSTAT_STOP_INT 0x04000000
  44. #define CPUSTAT_IO_INT 0x02000000
  45. #define CPUSTAT_EXT_INT 0x01000000
  46. #define CPUSTAT_RUNNING 0x00800000
  47. #define CPUSTAT_RETAINED 0x00400000
  48. #define CPUSTAT_TIMING_SUB 0x00020000
  49. #define CPUSTAT_SIE_SUB 0x00010000
  50. #define CPUSTAT_RRF 0x00008000
  51. #define CPUSTAT_SLSV 0x00004000
  52. #define CPUSTAT_SLSR 0x00002000
  53. #define CPUSTAT_ZARCH 0x00000800
  54. #define CPUSTAT_MCDS 0x00000100
  55. #define CPUSTAT_SM 0x00000080
  56. #define CPUSTAT_G 0x00000008
  57. #define CPUSTAT_GED 0x00000004
  58. #define CPUSTAT_J 0x00000002
  59. #define CPUSTAT_P 0x00000001
  60. struct kvm_s390_sie_block {
  61. atomic_t cpuflags; /* 0x0000 */
  62. __u32 prefix; /* 0x0004 */
  63. __u8 reserved08[4]; /* 0x0008 */
  64. #define PROG_IN_SIE (1<<0)
  65. __u32 prog0c; /* 0x000c */
  66. __u8 reserved10[16]; /* 0x0010 */
  67. #define PROG_BLOCK_SIE 0x00000001
  68. atomic_t prog20; /* 0x0020 */
  69. __u8 reserved24[4]; /* 0x0024 */
  70. __u64 cputm; /* 0x0028 */
  71. __u64 ckc; /* 0x0030 */
  72. __u64 epoch; /* 0x0038 */
  73. __u8 reserved40[4]; /* 0x0040 */
  74. #define LCTL_CR0 0x8000
  75. #define LCTL_CR6 0x0200
  76. #define LCTL_CR14 0x0002
  77. __u16 lctl; /* 0x0044 */
  78. __s16 icpua; /* 0x0046 */
  79. #define ICTL_LPSW 0x00400000
  80. __u32 ictl; /* 0x0048 */
  81. __u32 eca; /* 0x004c */
  82. __u8 icptcode; /* 0x0050 */
  83. __u8 reserved51; /* 0x0051 */
  84. __u16 ihcpu; /* 0x0052 */
  85. __u8 reserved54[2]; /* 0x0054 */
  86. __u16 ipa; /* 0x0056 */
  87. __u32 ipb; /* 0x0058 */
  88. __u32 scaoh; /* 0x005c */
  89. __u8 reserved60; /* 0x0060 */
  90. __u8 ecb; /* 0x0061 */
  91. __u8 ecb2; /* 0x0062 */
  92. __u8 reserved63[1]; /* 0x0063 */
  93. __u32 scaol; /* 0x0064 */
  94. __u8 reserved68[4]; /* 0x0068 */
  95. __u32 todpr; /* 0x006c */
  96. __u8 reserved70[32]; /* 0x0070 */
  97. psw_t gpsw; /* 0x0090 */
  98. __u64 gg14; /* 0x00a0 */
  99. __u64 gg15; /* 0x00a8 */
  100. __u8 reservedb0[30]; /* 0x00b0 */
  101. __u16 iprcc; /* 0x00ce */
  102. __u8 reservedd0[48]; /* 0x00d0 */
  103. __u64 gcr[16]; /* 0x0100 */
  104. __u64 gbea; /* 0x0180 */
  105. __u8 reserved188[24]; /* 0x0188 */
  106. __u32 fac; /* 0x01a0 */
  107. __u8 reserved1a4[92]; /* 0x01a4 */
  108. } __attribute__((packed));
  109. struct kvm_vcpu_stat {
  110. u32 exit_userspace;
  111. u32 exit_null;
  112. u32 exit_external_request;
  113. u32 exit_external_interrupt;
  114. u32 exit_stop_request;
  115. u32 exit_validity;
  116. u32 exit_instruction;
  117. u32 instruction_lctl;
  118. u32 instruction_lctlg;
  119. u32 exit_program_interruption;
  120. u32 exit_instr_and_program;
  121. u32 deliver_external_call;
  122. u32 deliver_emergency_signal;
  123. u32 deliver_service_signal;
  124. u32 deliver_virtio_interrupt;
  125. u32 deliver_stop_signal;
  126. u32 deliver_prefix_signal;
  127. u32 deliver_restart_signal;
  128. u32 deliver_program_int;
  129. u32 deliver_io_int;
  130. u32 exit_wait_state;
  131. u32 instruction_pfmf;
  132. u32 instruction_stidp;
  133. u32 instruction_spx;
  134. u32 instruction_stpx;
  135. u32 instruction_stap;
  136. u32 instruction_storage_key;
  137. u32 instruction_stsch;
  138. u32 instruction_chsc;
  139. u32 instruction_stsi;
  140. u32 instruction_stfl;
  141. u32 instruction_tprot;
  142. u32 instruction_sigp_sense;
  143. u32 instruction_sigp_sense_running;
  144. u32 instruction_sigp_external_call;
  145. u32 instruction_sigp_emergency;
  146. u32 instruction_sigp_stop;
  147. u32 instruction_sigp_arch;
  148. u32 instruction_sigp_prefix;
  149. u32 instruction_sigp_restart;
  150. u32 diagnose_10;
  151. u32 diagnose_44;
  152. u32 diagnose_9c;
  153. };
  154. struct kvm_s390_io_info {
  155. __u16 subchannel_id; /* 0x0b8 */
  156. __u16 subchannel_nr; /* 0x0ba */
  157. __u32 io_int_parm; /* 0x0bc */
  158. __u32 io_int_word; /* 0x0c0 */
  159. };
  160. struct kvm_s390_ext_info {
  161. __u32 ext_params;
  162. __u64 ext_params2;
  163. };
  164. #define PGM_OPERATION 0x01
  165. #define PGM_PRIVILEGED_OP 0x02
  166. #define PGM_EXECUTE 0x03
  167. #define PGM_PROTECTION 0x04
  168. #define PGM_ADDRESSING 0x05
  169. #define PGM_SPECIFICATION 0x06
  170. #define PGM_DATA 0x07
  171. struct kvm_s390_pgm_info {
  172. __u16 code;
  173. };
  174. struct kvm_s390_prefix_info {
  175. __u32 address;
  176. };
  177. struct kvm_s390_extcall_info {
  178. __u16 code;
  179. };
  180. struct kvm_s390_emerg_info {
  181. __u16 code;
  182. };
  183. struct kvm_s390_mchk_info {
  184. __u64 cr14;
  185. __u64 mcic;
  186. };
  187. struct kvm_s390_interrupt_info {
  188. struct list_head list;
  189. u64 type;
  190. union {
  191. struct kvm_s390_io_info io;
  192. struct kvm_s390_ext_info ext;
  193. struct kvm_s390_pgm_info pgm;
  194. struct kvm_s390_emerg_info emerg;
  195. struct kvm_s390_extcall_info extcall;
  196. struct kvm_s390_prefix_info prefix;
  197. struct kvm_s390_mchk_info mchk;
  198. };
  199. };
  200. /* for local_interrupt.action_flags */
  201. #define ACTION_STORE_ON_STOP (1<<0)
  202. #define ACTION_STOP_ON_STOP (1<<1)
  203. #define ACTION_RELOADVCPU_ON_STOP (1<<2)
  204. struct kvm_s390_local_interrupt {
  205. spinlock_t lock;
  206. struct list_head list;
  207. atomic_t active;
  208. struct kvm_s390_float_interrupt *float_int;
  209. int timer_due; /* event indicator for waitqueue below */
  210. wait_queue_head_t *wq;
  211. atomic_t *cpuflags;
  212. unsigned int action_bits;
  213. };
  214. struct kvm_s390_float_interrupt {
  215. spinlock_t lock;
  216. struct list_head list;
  217. atomic_t active;
  218. int next_rr_cpu;
  219. unsigned long idle_mask[(KVM_MAX_VCPUS + sizeof(long) - 1)
  220. / sizeof(long)];
  221. struct kvm_s390_local_interrupt *local_int[KVM_MAX_VCPUS];
  222. };
  223. struct kvm_vcpu_arch {
  224. struct kvm_s390_sie_block *sie_block;
  225. s390_fp_regs host_fpregs;
  226. unsigned int host_acrs[NUM_ACRS];
  227. s390_fp_regs guest_fpregs;
  228. struct kvm_s390_local_interrupt local_int;
  229. struct hrtimer ckc_timer;
  230. struct tasklet_struct tasklet;
  231. union {
  232. struct cpuid cpu_id;
  233. u64 stidp_data;
  234. };
  235. struct gmap *gmap;
  236. };
  237. struct kvm_vm_stat {
  238. u32 remote_tlb_flush;
  239. };
  240. struct kvm_arch_memory_slot {
  241. };
  242. struct kvm_arch{
  243. struct sca_block *sca;
  244. debug_info_t *dbf;
  245. struct kvm_s390_float_interrupt float_int;
  246. struct gmap *gmap;
  247. int css_support;
  248. };
  249. extern int sie64a(struct kvm_s390_sie_block *, u64 *);
  250. extern char sie_exit;
  251. #endif