/* * asm-s390/kvm_host.h - definition for kernel virtual machines on s390 * * Copyright IBM Corp. 2008,2009 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License (version 2 only) * as published by the Free Software Foundation. * * Author(s): Carsten Otte */ #ifndef ASM_KVM_HOST_H #define ASM_KVM_HOST_H #include #include #include #include #include #define KVM_MAX_VCPUS 64 #define KVM_MEMORY_SLOTS 32 /* memory slots that does not exposed to userspace */ #define KVM_PRIVATE_MEM_SLOTS 4 struct sca_entry { atomic_t scn; __u32 reserved; __u64 sda; __u64 reserved2[2]; } __attribute__((packed)); struct sca_block { __u64 ipte_control; __u64 reserved[5]; __u64 mcn; __u64 reserved2; struct sca_entry cpu[64]; } __attribute__((packed)); #define KVM_NR_PAGE_SIZES 2 #define KVM_HPAGE_GFN_SHIFT(x) (((x) - 1) * 8) #define KVM_HPAGE_SHIFT(x) (PAGE_SHIFT + KVM_HPAGE_GFN_SHIFT(x)) #define KVM_HPAGE_SIZE(x) (1UL << KVM_HPAGE_SHIFT(x)) #define KVM_HPAGE_MASK(x) (~(KVM_HPAGE_SIZE(x) - 1)) #define KVM_PAGES_PER_HPAGE(x) (KVM_HPAGE_SIZE(x) / PAGE_SIZE) #define CPUSTAT_STOPPED 0x80000000 #define CPUSTAT_WAIT 0x10000000 #define CPUSTAT_ECALL_PEND 0x08000000 #define CPUSTAT_STOP_INT 0x04000000 #define CPUSTAT_IO_INT 0x02000000 #define CPUSTAT_EXT_INT 0x01000000 #define CPUSTAT_RUNNING 0x00800000 #define CPUSTAT_RETAINED 0x00400000 #define CPUSTAT_TIMING_SUB 0x00020000 #define CPUSTAT_SIE_SUB 0x00010000 #define CPUSTAT_RRF 0x00008000 #define CPUSTAT_SLSV 0x00004000 #define CPUSTAT_SLSR 0x00002000 #define CPUSTAT_ZARCH 0x00000800 #define CPUSTAT_MCDS 0x00000100 #define CPUSTAT_SM 0x00000080 #define CPUSTAT_G 0x00000008 #define CPUSTAT_J 0x00000002 #define CPUSTAT_P 0x00000001 struct kvm_s390_sie_block { atomic_t cpuflags; /* 0x0000 */ __u32 prefix; /* 0x0004 */ __u8 reserved8[32]; /* 0x0008 */ __u64 cputm; /* 0x0028 */ __u64 ckc; /* 0x0030 */ __u64 epoch; /* 0x0038 */ __u8 reserved40[4]; /* 0x0040 */ #define LCTL_CR0 0x8000 __u16 lctl; /* 0x0044 */ __s16 icpua; /* 0x0046 */ __u32 ictl; /* 0x0048 */ __u32 eca; /* 0x004c */ __u8 icptcode; /* 0x0050 */ __u8 reserved51; /* 0x0051 */ __u16 ihcpu; /* 0x0052 */ __u8 reserved54[2]; /* 0x0054 */ __u16 ipa; /* 0x0056 */ __u32 ipb; /* 0x0058 */ __u32 scaoh; /* 0x005c */ __u8 reserved60; /* 0x0060 */ __u8 ecb; /* 0x0061 */ __u8 reserved62[2]; /* 0x0062 */ __u32 scaol; /* 0x0064 */ __u8 reserved68[4]; /* 0x0068 */ __u32 todpr; /* 0x006c */ __u8 reserved70[32]; /* 0x0070 */ psw_t gpsw; /* 0x0090 */ __u64 gg14; /* 0x00a0 */ __u64 gg15; /* 0x00a8 */ __u8 reservedb0[30]; /* 0x00b0 */ __u16 iprcc; /* 0x00ce */ __u8 reservedd0[48]; /* 0x00d0 */ __u64 gcr[16]; /* 0x0100 */ __u64 gbea; /* 0x0180 */ __u8 reserved188[24]; /* 0x0188 */ __u32 fac; /* 0x01a0 */ __u8 reserved1a4[92]; /* 0x01a4 */ } __attribute__((packed)); struct kvm_vcpu_stat { u32 exit_userspace; u32 exit_null; u32 exit_external_request; u32 exit_external_interrupt; u32 exit_stop_request; u32 exit_validity; u32 exit_instruction; u32 instruction_lctl; u32 instruction_lctlg; u32 exit_program_interruption; u32 exit_instr_and_program; u32 deliver_external_call; u32 deliver_emergency_signal; u32 deliver_service_signal; u32 deliver_virtio_interrupt; u32 deliver_stop_signal; u32 deliver_prefix_signal; u32 deliver_restart_signal; u32 deliver_program_int; u32 exit_wait_state; u32 instruction_stidp; u32 instruction_spx; u32 instruction_stpx; u32 instruction_stap; u32 instruction_storage_key; u32 instruction_stsch; u32 instruction_chsc; u32 instruction_stsi; u32 instruction_stfl; u32 instruction_tprot; u32 instruction_sigp_sense; u32 instruction_sigp_sense_running; u32 instruction_sigp_external_call; u32 instruction_sigp_emergency; u32 instruction_sigp_stop; u32 instruction_sigp_arch; u32 instruction_sigp_prefix; u32 instruction_sigp_restart; u32 diagnose_10; u32 diagnose_44; }; struct kvm_s390_io_info { __u16 subchannel_id; /* 0x0b8 */ __u16 subchannel_nr; /* 0x0ba */ __u32 io_int_parm; /* 0x0bc */ __u32 io_int_word; /* 0x0c0 */ }; struct kvm_s390_ext_info { __u32 ext_params; __u64 ext_params2; }; #define PGM_OPERATION 0x01 #define PGM_PRIVILEGED_OPERATION 0x02 #define PGM_EXECUTE 0x03 #define PGM_PROTECTION 0x04 #define PGM_ADDRESSING 0x05 #define PGM_SPECIFICATION 0x06 #define PGM_DATA 0x07 struct kvm_s390_pgm_info { __u16 code; }; struct kvm_s390_prefix_info { __u32 address; }; struct kvm_s390_extcall_info { __u16 code; }; struct kvm_s390_emerg_info { __u16 code; }; struct kvm_s390_interrupt_info { struct list_head list; u64 type; union { struct kvm_s390_io_info io; struct kvm_s390_ext_info ext; struct kvm_s390_pgm_info pgm; struct kvm_s390_emerg_info emerg; struct kvm_s390_extcall_info extcall; struct kvm_s390_prefix_info prefix; }; }; /* for local_interrupt.action_flags */ #define ACTION_STORE_ON_STOP (1<<0) #define ACTION_STOP_ON_STOP (1<<1) #define ACTION_RELOADVCPU_ON_STOP (1<<2) struct kvm_s390_local_interrupt { spinlock_t lock; struct list_head list; atomic_t active; struct kvm_s390_float_interrupt *float_int; int timer_due; /* event indicator for waitqueue below */ wait_queue_head_t wq; atomic_t *cpuflags; unsigned int action_bits; }; struct kvm_s390_float_interrupt { spinlock_t lock; struct list_head list; atomic_t active; int next_rr_cpu; unsigned long idle_mask[(KVM_MAX_VCPUS + sizeof(long) - 1) / sizeof(long)]; struct kvm_s390_local_interrupt *local_int[KVM_MAX_VCPUS]; }; struct kvm_vcpu_arch { struct kvm_s390_sie_block *sie_block; s390_fp_regs host_fpregs; unsigned int host_acrs[NUM_ACRS]; s390_fp_regs guest_fpregs; unsigned int guest_acrs[NUM_ACRS]; struct kvm_s390_local_interrupt local_int; struct hrtimer ckc_timer; struct tasklet_struct tasklet; union { struct cpuid cpu_id; u64 stidp_data; }; struct gmap *gmap; }; struct kvm_vm_stat { u32 remote_tlb_flush; }; struct kvm_arch{ struct sca_block *sca; debug_info_t *dbf; struct kvm_s390_float_interrupt float_int; struct gmap *gmap; }; extern int sie64a(struct kvm_s390_sie_block *, u64 *); #endif