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/*
* 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 <linux/kvm.h>
#include <asm/debug.h>
#include <asm/cpu.h>
#include <asm/isc.h>
#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. 4096 is an out-of-thin-air value. 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 4096
struct sca_entry {
atomic_t scn;
__u32 reserved;
__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_G 0x00000008
#define CPUSTAT_GED 0x00000004
#define CPUSTAT_J 0x00000002
#define CPUSTAT_P 0x00000001
struct kvm_s390_sie_block {
atomic_t cpuflags; /* 0x0000 */
__u32 prefix; /* 0x0004 */
__u8 reserved08[4]; /* 0x0008 */
#define PROG_IN_SIE (1<<0)
__u32 prog0c; /* 0x000c */
__u8 reserved10[16]; /* 0x0010 */
#define PROG_BLOCK_SIE 0x00000001
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_CR14 0x0002
__u16 lctl; /* 0x0044 */
__s16 icpua; /* 0x0046 */
#define ICTL_LPSW 0x00400000
#define ICTL_ISKE 0x00004000
#define ICTL_SSKE 0x00002000
#define ICTL_RRBE 0x00001000
__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 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 ecb2; /* 0x0062 */
__u8 reserved63[1]; /* 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[28]; /* 0x00b0 */
__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[16]; /* 0x00f0 */
__u64 gcr[16]; /* 0x0100 */
__u64 gbea; /* 0x0180 */
__u8 reserved188[24]; /* 0x0188 */
__u32 fac; /* 0x01a0 */
__u8 reserved1a4[20]; /* 0x01a4 */
__u64 cbrlo; /* 0x01b8 */
__u8 reserved1c0[30]; /* 0x01c0 */
__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 sie_page {
struct kvm_s390_sie_block sie_block;
__u8 reserved200[1024]; /* 0x0200 */
struct kvm_s390_itdb itdb; /* 0x0600 */
__u8 reserved700[2304]; /* 0x0700 */
} __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 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_stop;
u32 instruction_sigp_arch;
u32 instruction_sigp_prefix;
u32 instruction_sigp_restart;
u32 diagnose_10;
u32 diagnose_44;
u32 diagnose_9c;
};
#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_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
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_mchk_info mchk;
};
};
/* for local_interrupt.action_flags */
#define ACTION_STORE_ON_STOP (1<<0)
#define ACTION_STOP_ON_STOP (1<<1)
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[BITS_TO_LONGS(KVM_MAX_VCPUS)];
unsigned int irq_count;
};
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;
struct kvm_s390_local_interrupt local_int;
struct hrtimer ckc_timer;
struct tasklet_struct tasklet;
struct kvm_s390_pgm_info pgm;
union {
struct cpuid cpu_id;
u64 stidp_data;
};
struct gmap *gmap;
#define KVM_S390_PFAULT_TOKEN_INVALID (-1UL)
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
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;
struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS];
wait_queue_head_t ipte_wq;
};
#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_vcpu;
struct kvm_async_pf;
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;
#endif
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