/* * 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 #include #include #include #include #include #define KVM_MAX_VCPUS 64 #define KVM_USER_MEM_SLOTS 32 /* * These seem to be used for allocating ->chip in the routing table, which we * don't use. 1 is as small as we can get to reduce the needed memory. If we * need to look at ->chip later on, we'll need to revisit this. */ #define KVM_NR_IRQCHIPS 1 #define KVM_IRQCHIP_NUM_PINS 1 #define KVM_HALT_POLL_NS_DEFAULT 0 #define SIGP_CTRL_C 0x80 #define SIGP_CTRL_SCN_MASK 0x3f struct sca_entry { __u8 reserved0; __u8 sigp_ctrl; __u16 reserved[3]; __u64 sda; __u64 reserved2[2]; } __attribute__((packed)); union ipte_control { unsigned long val; struct { unsigned long k : 1; unsigned long kh : 31; unsigned long kg : 32; }; }; struct sca_block { union ipte_control ipte_control; __u64 reserved[5]; __u64 mcn; __u64 reserved2; struct sca_entry cpu[64]; } __attribute__((packed)); #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_IBS 0x00000040 #define CPUSTAT_GED2 0x00000010 #define CPUSTAT_G 0x00000008 #define CPUSTAT_GED 0x00000004 #define CPUSTAT_J 0x00000002 #define CPUSTAT_P 0x00000001 struct kvm_s390_sie_block { atomic_t cpuflags; /* 0x0000 */ __u32 : 1; /* 0x0004 */ __u32 prefix : 18; __u32 : 1; __u32 ibc : 12; __u8 reserved08[4]; /* 0x0008 */ #define PROG_IN_SIE (1<<0) __u32 prog0c; /* 0x000c */ __u8 reserved10[16]; /* 0x0010 */ #define PROG_BLOCK_SIE (1<<0) #define PROG_REQUEST (1<<1) atomic_t prog20; /* 0x0020 */ __u8 reserved24[4]; /* 0x0024 */ __u64 cputm; /* 0x0028 */ __u64 ckc; /* 0x0030 */ __u64 epoch; /* 0x0038 */ __u8 reserved40[4]; /* 0x0040 */ #define LCTL_CR0 0x8000 #define LCTL_CR6 0x0200 #define LCTL_CR9 0x0040 #define LCTL_CR10 0x0020 #define LCTL_CR11 0x0010 #define LCTL_CR14 0x0002 __u16 lctl; /* 0x0044 */ __s16 icpua; /* 0x0046 */ #define ICTL_PINT 0x20000000 #define ICTL_LPSW 0x00400000 #define ICTL_STCTL 0x00040000 #define ICTL_ISKE 0x00004000 #define ICTL_SSKE 0x00002000 #define ICTL_RRBE 0x00001000 #define ICTL_TPROT 0x00000200 __u32 ictl; /* 0x0048 */ __u32 eca; /* 0x004c */ #define ICPT_INST 0x04 #define ICPT_PROGI 0x08 #define ICPT_INSTPROGI 0x0C #define ICPT_OPEREXC 0x2C #define ICPT_PARTEXEC 0x38 #define ICPT_IOINST 0x40 __u8 icptcode; /* 0x0050 */ __u8 icptstatus; /* 0x0051 */ __u16 ihcpu; /* 0x0052 */ __u8 reserved54[2]; /* 0x0054 */ __u16 ipa; /* 0x0056 */ __u32 ipb; /* 0x0058 */ __u32 scaoh; /* 0x005c */ #define FPF_BPBC 0x20 __u8 fpf; /* 0x0060 */ __u8 ecb; /* 0x0061 */ __u8 ecb2; /* 0x0062 */ #define ECB3_AES 0x04 #define ECB3_DEA 0x08 __u8 ecb3; /* 0x0063 */ __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[20]; /* 0x00b0 */ __u16 extcpuaddr; /* 0x00c4 */ __u16 eic; /* 0x00c6 */ __u32 reservedc8; /* 0x00c8 */ __u16 pgmilc; /* 0x00cc */ __u16 iprcc; /* 0x00ce */ __u32 dxc; /* 0x00d0 */ __u16 mcn; /* 0x00d4 */ __u8 perc; /* 0x00d6 */ __u8 peratmid; /* 0x00d7 */ __u64 peraddr; /* 0x00d8 */ __u8 eai; /* 0x00e0 */ __u8 peraid; /* 0x00e1 */ __u8 oai; /* 0x00e2 */ __u8 armid; /* 0x00e3 */ __u8 reservede4[4]; /* 0x00e4 */ __u64 tecmc; /* 0x00e8 */ __u8 reservedf0[12]; /* 0x00f0 */ #define CRYCB_FORMAT1 0x00000001 #define CRYCB_FORMAT2 0x00000003 __u32 crycbd; /* 0x00fc */ __u64 gcr[16]; /* 0x0100 */ __u64 gbea; /* 0x0180 */ __u8 reserved188[24]; /* 0x0188 */ __u32 fac; /* 0x01a0 */ __u8 reserved1a4[20]; /* 0x01a4 */ __u64 cbrlo; /* 0x01b8 */ __u8 reserved1c0[8]; /* 0x01c0 */ __u32 ecd; /* 0x01c8 */ __u8 reserved1cc[18]; /* 0x01cc */ __u64 pp; /* 0x01de */ __u8 reserved1e6[2]; /* 0x01e6 */ __u64 itdba; /* 0x01e8 */ __u8 reserved1f0[16]; /* 0x01f0 */ } __attribute__((packed)); struct kvm_s390_itdb { __u8 data[256]; } __packed; struct kvm_s390_vregs { __vector128 vrs[32]; __u8 reserved200[512]; /* for future vector expansion */ } __packed; struct sie_page { struct kvm_s390_sie_block sie_block; __u8 reserved200[1024]; /* 0x0200 */ struct kvm_s390_itdb itdb; /* 0x0600 */ __u8 reserved700[1280]; /* 0x0700 */ struct kvm_s390_vregs vregs; /* 0x0c00 */ } __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 halt_successful_poll; u32 halt_attempted_poll; u32 halt_wakeup; u32 instruction_lctl; u32 instruction_lctlg; u32 instruction_stctl; u32 instruction_stctg; 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 deliver_io_int; u32 exit_wait_state; u32 instruction_pfmf; u32 instruction_stidp; u32 instruction_spx; u32 instruction_stpx; u32 instruction_stap; u32 instruction_storage_key; u32 instruction_ipte_interlock; u32 instruction_stsch; u32 instruction_chsc; u32 instruction_stsi; u32 instruction_stfl; u32 instruction_tprot; u32 instruction_essa; u32 instruction_sigp_sense; u32 instruction_sigp_sense_running; u32 instruction_sigp_external_call; u32 instruction_sigp_emergency; u32 instruction_sigp_cond_emergency; u32 instruction_sigp_start; u32 instruction_sigp_stop; u32 instruction_sigp_stop_store_status; u32 instruction_sigp_store_status; u32 instruction_sigp_store_adtl_status; u32 instruction_sigp_arch; u32 instruction_sigp_prefix; u32 instruction_sigp_restart; u32 instruction_sigp_init_cpu_reset; u32 instruction_sigp_cpu_reset; u32 instruction_sigp_unknown; u32 diagnose_10; u32 diagnose_44; u32 diagnose_9c; u32 diagnose_258; u32 diagnose_308; u32 diagnose_500; }; #define PGM_OPERATION 0x01 #define PGM_PRIVILEGED_OP 0x02 #define PGM_EXECUTE 0x03 #define PGM_PROTECTION 0x04 #define PGM_ADDRESSING 0x05 #define PGM_SPECIFICATION 0x06 #define PGM_DATA 0x07 #define PGM_FIXED_POINT_OVERFLOW 0x08 #define PGM_FIXED_POINT_DIVIDE 0x09 #define PGM_DECIMAL_OVERFLOW 0x0a #define PGM_DECIMAL_DIVIDE 0x0b #define PGM_HFP_EXPONENT_OVERFLOW 0x0c #define PGM_HFP_EXPONENT_UNDERFLOW 0x0d #define PGM_HFP_SIGNIFICANCE 0x0e #define PGM_HFP_DIVIDE 0x0f #define PGM_SEGMENT_TRANSLATION 0x10 #define PGM_PAGE_TRANSLATION 0x11 #define PGM_TRANSLATION_SPEC 0x12 #define PGM_SPECIAL_OPERATION 0x13 #define PGM_OPERAND 0x15 #define PGM_TRACE_TABEL 0x16 #define PGM_VECTOR_PROCESSING 0x1b #define PGM_SPACE_SWITCH 0x1c #define PGM_HFP_SQUARE_ROOT 0x1d #define PGM_PC_TRANSLATION_SPEC 0x1f #define PGM_AFX_TRANSLATION 0x20 #define PGM_ASX_TRANSLATION 0x21 #define PGM_LX_TRANSLATION 0x22 #define PGM_EX_TRANSLATION 0x23 #define PGM_PRIMARY_AUTHORITY 0x24 #define PGM_SECONDARY_AUTHORITY 0x25 #define PGM_LFX_TRANSLATION 0x26 #define PGM_LSX_TRANSLATION 0x27 #define PGM_ALET_SPECIFICATION 0x28 #define PGM_ALEN_TRANSLATION 0x29 #define PGM_ALE_SEQUENCE 0x2a #define PGM_ASTE_VALIDITY 0x2b #define PGM_ASTE_SEQUENCE 0x2c #define PGM_EXTENDED_AUTHORITY 0x2d #define PGM_LSTE_SEQUENCE 0x2e #define PGM_ASTE_INSTANCE 0x2f #define PGM_STACK_FULL 0x30 #define PGM_STACK_EMPTY 0x31 #define PGM_STACK_SPECIFICATION 0x32 #define PGM_STACK_TYPE 0x33 #define PGM_STACK_OPERATION 0x34 #define PGM_ASCE_TYPE 0x38 #define PGM_REGION_FIRST_TRANS 0x39 #define PGM_REGION_SECOND_TRANS 0x3a #define PGM_REGION_THIRD_TRANS 0x3b #define PGM_MONITOR 0x40 #define PGM_PER 0x80 #define PGM_CRYPTO_OPERATION 0x119 /* irq types in order of priority */ enum irq_types { IRQ_PEND_MCHK_EX = 0, IRQ_PEND_SVC, IRQ_PEND_PROG, IRQ_PEND_MCHK_REP, IRQ_PEND_EXT_IRQ_KEY, IRQ_PEND_EXT_MALFUNC, IRQ_PEND_EXT_EMERGENCY, IRQ_PEND_EXT_EXTERNAL, IRQ_PEND_EXT_CLOCK_COMP, IRQ_PEND_EXT_CPU_TIMER, IRQ_PEND_EXT_TIMING, IRQ_PEND_EXT_SERVICE, IRQ_PEND_EXT_HOST, IRQ_PEND_PFAULT_INIT, IRQ_PEND_PFAULT_DONE, IRQ_PEND_VIRTIO, IRQ_PEND_IO_ISC_0, IRQ_PEND_IO_ISC_1, IRQ_PEND_IO_ISC_2, IRQ_PEND_IO_ISC_3, IRQ_PEND_IO_ISC_4, IRQ_PEND_IO_ISC_5, IRQ_PEND_IO_ISC_6, IRQ_PEND_IO_ISC_7, IRQ_PEND_SIGP_STOP, IRQ_PEND_RESTART, IRQ_PEND_SET_PREFIX, IRQ_PEND_COUNT }; /* We have 2M for virtio device descriptor pages. Smallest amount of * memory per page is 24 bytes (1 queue), so (2048*1024) / 24 = 87381 */ #define KVM_S390_MAX_VIRTIO_IRQS 87381 /* * Repressible (non-floating) machine check interrupts * subclass bits in MCIC */ #define MCHK_EXTD_BIT 58 #define MCHK_DEGR_BIT 56 #define MCHK_WARN_BIT 55 #define MCHK_REP_MASK ((1UL << MCHK_DEGR_BIT) | \ (1UL << MCHK_EXTD_BIT) | \ (1UL << MCHK_WARN_BIT)) /* Exigent machine check interrupts subclass bits in MCIC */ #define MCHK_SD_BIT 63 #define MCHK_PD_BIT 62 #define MCHK_EX_MASK ((1UL << MCHK_SD_BIT) | (1UL << MCHK_PD_BIT)) #define IRQ_PEND_EXT_MASK ((1UL << IRQ_PEND_EXT_IRQ_KEY) | \ (1UL << IRQ_PEND_EXT_CLOCK_COMP) | \ (1UL << IRQ_PEND_EXT_CPU_TIMER) | \ (1UL << IRQ_PEND_EXT_MALFUNC) | \ (1UL << IRQ_PEND_EXT_EMERGENCY) | \ (1UL << IRQ_PEND_EXT_EXTERNAL) | \ (1UL << IRQ_PEND_EXT_TIMING) | \ (1UL << IRQ_PEND_EXT_HOST) | \ (1UL << IRQ_PEND_EXT_SERVICE) | \ (1UL << IRQ_PEND_VIRTIO) | \ (1UL << IRQ_PEND_PFAULT_INIT) | \ (1UL << IRQ_PEND_PFAULT_DONE)) #define IRQ_PEND_IO_MASK ((1UL << IRQ_PEND_IO_ISC_0) | \ (1UL << IRQ_PEND_IO_ISC_1) | \ (1UL << IRQ_PEND_IO_ISC_2) | \ (1UL << IRQ_PEND_IO_ISC_3) | \ (1UL << IRQ_PEND_IO_ISC_4) | \ (1UL << IRQ_PEND_IO_ISC_5) | \ (1UL << IRQ_PEND_IO_ISC_6) | \ (1UL << IRQ_PEND_IO_ISC_7)) #define IRQ_PEND_MCHK_MASK ((1UL << IRQ_PEND_MCHK_REP) | \ (1UL << IRQ_PEND_MCHK_EX)) 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; struct kvm_s390_stop_info stop; struct kvm_s390_mchk_info mchk; }; }; struct kvm_s390_irq_payload { 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; struct kvm_s390_stop_info stop; struct kvm_s390_mchk_info mchk; }; struct kvm_s390_local_interrupt { spinlock_t lock; struct kvm_s390_float_interrupt *float_int; wait_queue_head_t *wq; atomic_t *cpuflags; DECLARE_BITMAP(sigp_emerg_pending, KVM_MAX_VCPUS); struct kvm_s390_irq_payload irq; unsigned long pending_irqs; }; #define FIRQ_LIST_IO_ISC_0 0 #define FIRQ_LIST_IO_ISC_1 1 #define FIRQ_LIST_IO_ISC_2 2 #define FIRQ_LIST_IO_ISC_3 3 #define FIRQ_LIST_IO_ISC_4 4 #define FIRQ_LIST_IO_ISC_5 5 #define FIRQ_LIST_IO_ISC_6 6 #define FIRQ_LIST_IO_ISC_7 7 #define FIRQ_LIST_PFAULT 8 #define FIRQ_LIST_VIRTIO 9 #define FIRQ_LIST_COUNT 10 #define FIRQ_CNTR_IO 0 #define FIRQ_CNTR_SERVICE 1 #define FIRQ_CNTR_VIRTIO 2 #define FIRQ_CNTR_PFAULT 3 #define FIRQ_MAX_COUNT 4 struct kvm_s390_float_interrupt { unsigned long pending_irqs; spinlock_t lock; struct list_head lists[FIRQ_LIST_COUNT]; int counters[FIRQ_MAX_COUNT]; struct kvm_s390_mchk_info mchk; struct kvm_s390_ext_info srv_signal; int next_rr_cpu; unsigned long idle_mask[BITS_TO_LONGS(KVM_MAX_VCPUS)]; }; struct kvm_hw_wp_info_arch { unsigned long addr; unsigned long phys_addr; int len; char *old_data; }; struct kvm_hw_bp_info_arch { unsigned long addr; int len; }; /* * Only the upper 16 bits of kvm_guest_debug->control are arch specific. * Further KVM_GUESTDBG flags which an be used from userspace can be found in * arch/s390/include/uapi/asm/kvm.h */ #define KVM_GUESTDBG_EXIT_PENDING 0x10000000 #define guestdbg_enabled(vcpu) \ (vcpu->guest_debug & KVM_GUESTDBG_ENABLE) #define guestdbg_sstep_enabled(vcpu) \ (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP) #define guestdbg_hw_bp_enabled(vcpu) \ (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP) #define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \ (vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING)) struct kvm_guestdbg_info_arch { unsigned long cr0; unsigned long cr9; unsigned long cr10; unsigned long cr11; struct kvm_hw_bp_info_arch *hw_bp_info; struct kvm_hw_wp_info_arch *hw_wp_info; int nr_hw_bp; int nr_hw_wp; unsigned long last_bp; }; struct kvm_vcpu_arch { struct kvm_s390_sie_block *sie_block; unsigned int host_acrs[NUM_ACRS]; struct fpu host_fpregs; struct kvm_s390_local_interrupt local_int; struct hrtimer ckc_timer; struct kvm_s390_pgm_info pgm; union { struct cpuid cpu_id; u64 stidp_data; }; struct gmap *gmap; struct kvm_guestdbg_info_arch guestdbg; unsigned long pfault_token; unsigned long pfault_select; unsigned long pfault_compare; }; struct kvm_vm_stat { u32 remote_tlb_flush; }; struct kvm_arch_memory_slot { }; struct s390_map_info { struct list_head list; __u64 guest_addr; __u64 addr; struct page *page; }; struct s390_io_adapter { unsigned int id; int isc; bool maskable; bool masked; bool swap; struct rw_semaphore maps_lock; struct list_head maps; atomic_t nr_maps; }; #define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8) #define MAX_S390_ADAPTER_MAPS 256 /* maximum size of facilities and facility mask is 2k bytes */ #define S390_ARCH_FAC_LIST_SIZE_BYTE (1<<11) #define S390_ARCH_FAC_LIST_SIZE_U64 \ (S390_ARCH_FAC_LIST_SIZE_BYTE / sizeof(u64)) #define S390_ARCH_FAC_MASK_SIZE_BYTE S390_ARCH_FAC_LIST_SIZE_BYTE #define S390_ARCH_FAC_MASK_SIZE_U64 \ (S390_ARCH_FAC_MASK_SIZE_BYTE / sizeof(u64)) struct kvm_s390_fac { /* facility list requested by guest */ __u64 list[S390_ARCH_FAC_LIST_SIZE_U64]; /* facility mask supported by kvm & hosting machine */ __u64 mask[S390_ARCH_FAC_LIST_SIZE_U64]; }; struct kvm_s390_cpu_model { struct kvm_s390_fac *fac; struct cpuid cpu_id; unsigned short ibc; }; struct kvm_s390_crypto { struct kvm_s390_crypto_cb *crycb; __u32 crycbd; __u8 aes_kw; __u8 dea_kw; }; struct kvm_s390_crypto_cb { __u8 reserved00[72]; /* 0x0000 */ __u8 dea_wrapping_key_mask[24]; /* 0x0048 */ __u8 aes_wrapping_key_mask[32]; /* 0x0060 */ __u8 reserved80[128]; /* 0x0080 */ }; struct kvm_arch{ struct sca_block *sca; debug_info_t *dbf; struct kvm_s390_float_interrupt float_int; struct kvm_device *flic; struct gmap *gmap; int css_support; int use_irqchip; int use_cmma; int user_cpu_state_ctrl; int user_sigp; int user_stsi; struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS]; wait_queue_head_t ipte_wq; int ipte_lock_count; struct mutex ipte_mutex; spinlock_t start_stop_lock; struct kvm_s390_cpu_model model; struct kvm_s390_crypto crypto; u64 epoch; }; #define KVM_HVA_ERR_BAD (-1UL) #define KVM_HVA_ERR_RO_BAD (-2UL) static inline bool kvm_is_error_hva(unsigned long addr) { return IS_ERR_VALUE(addr); } #define ASYNC_PF_PER_VCPU 64 struct kvm_arch_async_pf { unsigned long pfault_token; }; bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu); void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu, struct kvm_async_pf *work); void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu, struct kvm_async_pf *work); void kvm_arch_async_page_present(struct kvm_vcpu *vcpu, struct kvm_async_pf *work); extern int sie64a(struct kvm_s390_sie_block *, u64 *); extern char sie_exit; static inline void kvm_arch_hardware_disable(void) {} static inline void kvm_arch_check_processor_compat(void *rtn) {} static inline void kvm_arch_sync_events(struct kvm *kvm) {} static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) {} static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {} static inline void kvm_arch_free_memslot(struct kvm *kvm, struct kvm_memory_slot *free, struct kvm_memory_slot *dont) {} static inline void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslots *slots) {} static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {} static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm, struct kvm_memory_slot *slot) {} static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {} static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {} #endif