482 lines
12 KiB
C
482 lines
12 KiB
C
/*
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* definition for kernel virtual machines on s390
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*
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* Copyright IBM Corp. 2008, 2009
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License (version 2 only)
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* as published by the Free Software Foundation.
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*
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* Author(s): Carsten Otte <cotte@de.ibm.com>
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*/
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#ifndef ASM_KVM_HOST_H
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#define ASM_KVM_HOST_H
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#include <linux/types.h>
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#include <linux/hrtimer.h>
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#include <linux/interrupt.h>
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#include <linux/kvm_types.h>
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#include <linux/kvm_host.h>
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#include <linux/kvm.h>
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#include <asm/debug.h>
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#include <asm/cpu.h>
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#include <asm/isc.h>
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#define KVM_MAX_VCPUS 64
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#define KVM_USER_MEM_SLOTS 32
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/*
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* These seem to be used for allocating ->chip in the routing table,
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* which we don't use. 4096 is an out-of-thin-air value. If we need
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* to look at ->chip later on, we'll need to revisit this.
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*/
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#define KVM_NR_IRQCHIPS 1
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#define KVM_IRQCHIP_NUM_PINS 4096
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#define SIGP_CTRL_C 0x00800000
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struct sca_entry {
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atomic_t ctrl;
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__u32 reserved;
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__u64 sda;
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__u64 reserved2[2];
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} __attribute__((packed));
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union ipte_control {
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unsigned long val;
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struct {
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unsigned long k : 1;
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unsigned long kh : 31;
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unsigned long kg : 32;
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};
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};
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struct sca_block {
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union ipte_control ipte_control;
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__u64 reserved[5];
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__u64 mcn;
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__u64 reserved2;
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struct sca_entry cpu[64];
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} __attribute__((packed));
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#define CPUSTAT_STOPPED 0x80000000
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#define CPUSTAT_WAIT 0x10000000
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#define CPUSTAT_ECALL_PEND 0x08000000
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#define CPUSTAT_STOP_INT 0x04000000
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#define CPUSTAT_IO_INT 0x02000000
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#define CPUSTAT_EXT_INT 0x01000000
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#define CPUSTAT_RUNNING 0x00800000
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#define CPUSTAT_RETAINED 0x00400000
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#define CPUSTAT_TIMING_SUB 0x00020000
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#define CPUSTAT_SIE_SUB 0x00010000
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#define CPUSTAT_RRF 0x00008000
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#define CPUSTAT_SLSV 0x00004000
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#define CPUSTAT_SLSR 0x00002000
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#define CPUSTAT_ZARCH 0x00000800
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#define CPUSTAT_MCDS 0x00000100
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#define CPUSTAT_SM 0x00000080
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#define CPUSTAT_IBS 0x00000040
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#define CPUSTAT_G 0x00000008
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#define CPUSTAT_GED 0x00000004
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#define CPUSTAT_J 0x00000002
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#define CPUSTAT_P 0x00000001
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struct kvm_s390_sie_block {
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atomic_t cpuflags; /* 0x0000 */
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__u32 : 1; /* 0x0004 */
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__u32 prefix : 18;
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__u32 : 13;
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__u8 reserved08[4]; /* 0x0008 */
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#define PROG_IN_SIE (1<<0)
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__u32 prog0c; /* 0x000c */
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__u8 reserved10[16]; /* 0x0010 */
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#define PROG_BLOCK_SIE 0x00000001
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atomic_t prog20; /* 0x0020 */
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__u8 reserved24[4]; /* 0x0024 */
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__u64 cputm; /* 0x0028 */
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__u64 ckc; /* 0x0030 */
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__u64 epoch; /* 0x0038 */
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__u8 reserved40[4]; /* 0x0040 */
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#define LCTL_CR0 0x8000
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#define LCTL_CR6 0x0200
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#define LCTL_CR9 0x0040
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#define LCTL_CR10 0x0020
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#define LCTL_CR11 0x0010
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#define LCTL_CR14 0x0002
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__u16 lctl; /* 0x0044 */
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__s16 icpua; /* 0x0046 */
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#define ICTL_PINT 0x20000000
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#define ICTL_LPSW 0x00400000
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#define ICTL_STCTL 0x00040000
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#define ICTL_ISKE 0x00004000
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#define ICTL_SSKE 0x00002000
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#define ICTL_RRBE 0x00001000
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#define ICTL_TPROT 0x00000200
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__u32 ictl; /* 0x0048 */
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__u32 eca; /* 0x004c */
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#define ICPT_INST 0x04
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#define ICPT_PROGI 0x08
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#define ICPT_INSTPROGI 0x0C
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#define ICPT_OPEREXC 0x2C
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#define ICPT_PARTEXEC 0x38
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#define ICPT_IOINST 0x40
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__u8 icptcode; /* 0x0050 */
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__u8 reserved51; /* 0x0051 */
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__u16 ihcpu; /* 0x0052 */
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__u8 reserved54[2]; /* 0x0054 */
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__u16 ipa; /* 0x0056 */
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__u32 ipb; /* 0x0058 */
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__u32 scaoh; /* 0x005c */
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__u8 reserved60; /* 0x0060 */
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__u8 ecb; /* 0x0061 */
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__u8 ecb2; /* 0x0062 */
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__u8 reserved63[1]; /* 0x0063 */
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__u32 scaol; /* 0x0064 */
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__u8 reserved68[4]; /* 0x0068 */
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__u32 todpr; /* 0x006c */
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__u8 reserved70[32]; /* 0x0070 */
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psw_t gpsw; /* 0x0090 */
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__u64 gg14; /* 0x00a0 */
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__u64 gg15; /* 0x00a8 */
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__u8 reservedb0[20]; /* 0x00b0 */
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__u16 extcpuaddr; /* 0x00c4 */
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__u16 eic; /* 0x00c6 */
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__u32 reservedc8; /* 0x00c8 */
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__u16 pgmilc; /* 0x00cc */
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__u16 iprcc; /* 0x00ce */
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__u32 dxc; /* 0x00d0 */
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__u16 mcn; /* 0x00d4 */
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__u8 perc; /* 0x00d6 */
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__u8 peratmid; /* 0x00d7 */
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__u64 peraddr; /* 0x00d8 */
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__u8 eai; /* 0x00e0 */
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__u8 peraid; /* 0x00e1 */
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__u8 oai; /* 0x00e2 */
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__u8 armid; /* 0x00e3 */
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__u8 reservede4[4]; /* 0x00e4 */
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__u64 tecmc; /* 0x00e8 */
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__u8 reservedf0[12]; /* 0x00f0 */
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#define CRYCB_FORMAT1 0x00000001
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__u32 crycbd; /* 0x00fc */
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__u64 gcr[16]; /* 0x0100 */
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__u64 gbea; /* 0x0180 */
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__u8 reserved188[24]; /* 0x0188 */
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__u32 fac; /* 0x01a0 */
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__u8 reserved1a4[20]; /* 0x01a4 */
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__u64 cbrlo; /* 0x01b8 */
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__u8 reserved1c0[30]; /* 0x01c0 */
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__u64 pp; /* 0x01de */
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__u8 reserved1e6[2]; /* 0x01e6 */
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__u64 itdba; /* 0x01e8 */
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__u8 reserved1f0[16]; /* 0x01f0 */
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} __attribute__((packed));
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struct kvm_s390_itdb {
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__u8 data[256];
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} __packed;
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struct sie_page {
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struct kvm_s390_sie_block sie_block;
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__u8 reserved200[1024]; /* 0x0200 */
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struct kvm_s390_itdb itdb; /* 0x0600 */
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__u8 reserved700[2304]; /* 0x0700 */
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} __packed;
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struct kvm_vcpu_stat {
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u32 exit_userspace;
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u32 exit_null;
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u32 exit_external_request;
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u32 exit_external_interrupt;
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u32 exit_stop_request;
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u32 exit_validity;
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u32 exit_instruction;
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u32 halt_wakeup;
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u32 instruction_lctl;
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u32 instruction_lctlg;
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u32 instruction_stctl;
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u32 instruction_stctg;
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u32 exit_program_interruption;
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u32 exit_instr_and_program;
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u32 deliver_external_call;
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u32 deliver_emergency_signal;
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u32 deliver_service_signal;
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u32 deliver_virtio_interrupt;
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u32 deliver_stop_signal;
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u32 deliver_prefix_signal;
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u32 deliver_restart_signal;
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u32 deliver_program_int;
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u32 deliver_io_int;
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u32 exit_wait_state;
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u32 instruction_pfmf;
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u32 instruction_stidp;
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u32 instruction_spx;
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u32 instruction_stpx;
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u32 instruction_stap;
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u32 instruction_storage_key;
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u32 instruction_ipte_interlock;
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u32 instruction_stsch;
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u32 instruction_chsc;
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u32 instruction_stsi;
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u32 instruction_stfl;
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u32 instruction_tprot;
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u32 instruction_essa;
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u32 instruction_sigp_sense;
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u32 instruction_sigp_sense_running;
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u32 instruction_sigp_external_call;
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u32 instruction_sigp_emergency;
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u32 instruction_sigp_stop;
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u32 instruction_sigp_arch;
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u32 instruction_sigp_prefix;
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u32 instruction_sigp_restart;
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u32 diagnose_10;
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u32 diagnose_44;
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u32 diagnose_9c;
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};
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#define PGM_OPERATION 0x01
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#define PGM_PRIVILEGED_OP 0x02
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#define PGM_EXECUTE 0x03
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#define PGM_PROTECTION 0x04
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#define PGM_ADDRESSING 0x05
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#define PGM_SPECIFICATION 0x06
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#define PGM_DATA 0x07
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#define PGM_FIXED_POINT_OVERFLOW 0x08
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#define PGM_FIXED_POINT_DIVIDE 0x09
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#define PGM_DECIMAL_OVERFLOW 0x0a
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#define PGM_DECIMAL_DIVIDE 0x0b
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#define PGM_HFP_EXPONENT_OVERFLOW 0x0c
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#define PGM_HFP_EXPONENT_UNDERFLOW 0x0d
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#define PGM_HFP_SIGNIFICANCE 0x0e
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#define PGM_HFP_DIVIDE 0x0f
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#define PGM_SEGMENT_TRANSLATION 0x10
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#define PGM_PAGE_TRANSLATION 0x11
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#define PGM_TRANSLATION_SPEC 0x12
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#define PGM_SPECIAL_OPERATION 0x13
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#define PGM_OPERAND 0x15
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#define PGM_TRACE_TABEL 0x16
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#define PGM_SPACE_SWITCH 0x1c
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#define PGM_HFP_SQUARE_ROOT 0x1d
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#define PGM_PC_TRANSLATION_SPEC 0x1f
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#define PGM_AFX_TRANSLATION 0x20
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#define PGM_ASX_TRANSLATION 0x21
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#define PGM_LX_TRANSLATION 0x22
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#define PGM_EX_TRANSLATION 0x23
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#define PGM_PRIMARY_AUTHORITY 0x24
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#define PGM_SECONDARY_AUTHORITY 0x25
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#define PGM_LFX_TRANSLATION 0x26
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#define PGM_LSX_TRANSLATION 0x27
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#define PGM_ALET_SPECIFICATION 0x28
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#define PGM_ALEN_TRANSLATION 0x29
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#define PGM_ALE_SEQUENCE 0x2a
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#define PGM_ASTE_VALIDITY 0x2b
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#define PGM_ASTE_SEQUENCE 0x2c
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#define PGM_EXTENDED_AUTHORITY 0x2d
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#define PGM_LSTE_SEQUENCE 0x2e
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#define PGM_ASTE_INSTANCE 0x2f
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#define PGM_STACK_FULL 0x30
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#define PGM_STACK_EMPTY 0x31
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#define PGM_STACK_SPECIFICATION 0x32
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#define PGM_STACK_TYPE 0x33
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#define PGM_STACK_OPERATION 0x34
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#define PGM_ASCE_TYPE 0x38
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#define PGM_REGION_FIRST_TRANS 0x39
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#define PGM_REGION_SECOND_TRANS 0x3a
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#define PGM_REGION_THIRD_TRANS 0x3b
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#define PGM_MONITOR 0x40
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#define PGM_PER 0x80
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#define PGM_CRYPTO_OPERATION 0x119
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struct kvm_s390_interrupt_info {
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struct list_head list;
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u64 type;
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union {
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struct kvm_s390_io_info io;
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struct kvm_s390_ext_info ext;
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struct kvm_s390_pgm_info pgm;
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struct kvm_s390_emerg_info emerg;
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struct kvm_s390_extcall_info extcall;
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struct kvm_s390_prefix_info prefix;
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struct kvm_s390_mchk_info mchk;
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};
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};
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/* for local_interrupt.action_flags */
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#define ACTION_STORE_ON_STOP (1<<0)
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#define ACTION_STOP_ON_STOP (1<<1)
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struct kvm_s390_local_interrupt {
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spinlock_t lock;
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struct list_head list;
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atomic_t active;
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struct kvm_s390_float_interrupt *float_int;
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wait_queue_head_t *wq;
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atomic_t *cpuflags;
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unsigned int action_bits;
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};
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struct kvm_s390_float_interrupt {
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spinlock_t lock;
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struct list_head list;
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atomic_t active;
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int next_rr_cpu;
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unsigned long idle_mask[BITS_TO_LONGS(KVM_MAX_VCPUS)];
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unsigned int irq_count;
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};
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struct kvm_hw_wp_info_arch {
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unsigned long addr;
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unsigned long phys_addr;
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int len;
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char *old_data;
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};
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struct kvm_hw_bp_info_arch {
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unsigned long addr;
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int len;
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};
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/*
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* Only the upper 16 bits of kvm_guest_debug->control are arch specific.
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* Further KVM_GUESTDBG flags which an be used from userspace can be found in
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* arch/s390/include/uapi/asm/kvm.h
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*/
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#define KVM_GUESTDBG_EXIT_PENDING 0x10000000
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#define guestdbg_enabled(vcpu) \
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(vcpu->guest_debug & KVM_GUESTDBG_ENABLE)
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#define guestdbg_sstep_enabled(vcpu) \
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(vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP)
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#define guestdbg_hw_bp_enabled(vcpu) \
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(vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP)
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#define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \
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(vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING))
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struct kvm_guestdbg_info_arch {
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unsigned long cr0;
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unsigned long cr9;
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unsigned long cr10;
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unsigned long cr11;
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struct kvm_hw_bp_info_arch *hw_bp_info;
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struct kvm_hw_wp_info_arch *hw_wp_info;
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int nr_hw_bp;
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int nr_hw_wp;
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unsigned long last_bp;
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};
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struct kvm_vcpu_arch {
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struct kvm_s390_sie_block *sie_block;
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s390_fp_regs host_fpregs;
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unsigned int host_acrs[NUM_ACRS];
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s390_fp_regs guest_fpregs;
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struct kvm_s390_local_interrupt local_int;
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struct hrtimer ckc_timer;
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struct kvm_s390_pgm_info pgm;
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union {
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struct cpuid cpu_id;
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u64 stidp_data;
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};
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struct gmap *gmap;
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struct kvm_guestdbg_info_arch guestdbg;
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#define KVM_S390_PFAULT_TOKEN_INVALID (-1UL)
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unsigned long pfault_token;
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unsigned long pfault_select;
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unsigned long pfault_compare;
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};
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struct kvm_vm_stat {
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u32 remote_tlb_flush;
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};
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struct kvm_arch_memory_slot {
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};
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struct s390_map_info {
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struct list_head list;
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__u64 guest_addr;
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__u64 addr;
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struct page *page;
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};
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struct s390_io_adapter {
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unsigned int id;
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int isc;
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bool maskable;
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bool masked;
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bool swap;
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struct rw_semaphore maps_lock;
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struct list_head maps;
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atomic_t nr_maps;
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};
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#define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8)
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#define MAX_S390_ADAPTER_MAPS 256
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struct kvm_s390_crypto {
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struct kvm_s390_crypto_cb *crycb;
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__u32 crycbd;
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};
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struct kvm_s390_crypto_cb {
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__u8 reserved00[128]; /* 0x0000 */
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};
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struct kvm_arch{
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struct sca_block *sca;
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debug_info_t *dbf;
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struct kvm_s390_float_interrupt float_int;
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struct kvm_device *flic;
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struct gmap *gmap;
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int css_support;
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int use_irqchip;
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int use_cmma;
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int user_cpu_state_ctrl;
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struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS];
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wait_queue_head_t ipte_wq;
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spinlock_t start_stop_lock;
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struct kvm_s390_crypto crypto;
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};
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#define KVM_HVA_ERR_BAD (-1UL)
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#define KVM_HVA_ERR_RO_BAD (-2UL)
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static inline bool kvm_is_error_hva(unsigned long addr)
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{
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return IS_ERR_VALUE(addr);
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}
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#define ASYNC_PF_PER_VCPU 64
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struct kvm_arch_async_pf {
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unsigned long pfault_token;
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};
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bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu);
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void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu,
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struct kvm_async_pf *work);
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void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu,
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struct kvm_async_pf *work);
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void kvm_arch_async_page_present(struct kvm_vcpu *vcpu,
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struct kvm_async_pf *work);
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extern int sie64a(struct kvm_s390_sie_block *, u64 *);
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extern char sie_exit;
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static inline void kvm_arch_hardware_disable(void) {}
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static inline void kvm_arch_check_processor_compat(void *rtn) {}
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static inline void kvm_arch_exit(void) {}
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static inline void kvm_arch_sync_events(struct kvm *kvm) {}
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static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) {}
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static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
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static inline void kvm_arch_free_memslot(struct kvm *kvm,
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struct kvm_memory_slot *free, struct kvm_memory_slot *dont) {}
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static inline void kvm_arch_memslots_updated(struct kvm *kvm) {}
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static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
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static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm,
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struct kvm_memory_slot *slot) {}
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#endif
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