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/*
* 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_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 [(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 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 *, unsigned long *);
#endif
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