| /* |
| * 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 <cotte@de.ibm.com> |
| */ |
| |
| |
| #ifndef ASM_KVM_HOST_H |
| #define ASM_KVM_HOST_H |
| #include <linux/hrtimer.h> |
| #include <linux/interrupt.h> |
| #include <linux/kvm_host.h> |
| #include <asm/debug.h> |
| #include <asm/cpu.h> |
| |
| #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_HOST 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[16]; /* 0x0070 */ |
| __u64 gmsor; /* 0x0080 */ |
| __u64 gmslm; /* 0x0088 */ |
| 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_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_emergency; |
| u32 instruction_sigp_stop; |
| u32 instruction_sigp_arch; |
| u32 instruction_sigp_prefix; |
| u32 instruction_sigp_restart; |
| 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_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_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 [(64 + sizeof(long) - 1) / sizeof(long)]; |
| struct kvm_s390_local_interrupt *local_int[64]; |
| }; |
| |
| |
| struct kvm_vcpu_arch { |
| struct kvm_s390_sie_block *sie_block; |
| unsigned long guest_gprs[16]; |
| 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 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; |
| }; |
| |
| extern int sie64a(struct kvm_s390_sie_block *, unsigned long *); |
| #endif |