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git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blob - arch/s390/kvm/kvm-s390.h
2 * definition for kvm on s390
4 * Copyright IBM Corp. 2008, 2009
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License (version 2 only)
8 * as published by the Free Software Foundation.
10 * Author(s): Carsten Otte <cotte@de.ibm.com>
11 * Christian Borntraeger <borntraeger@de.ibm.com>
12 * Christian Ehrhardt <ehrhardt@de.ibm.com>
15 #ifndef ARCH_S390_KVM_S390_H
16 #define ARCH_S390_KVM_S390_H
18 #include <linux/hrtimer.h>
19 #include <linux/kvm.h>
20 #include <linux/kvm_host.h>
22 /* The current code can have up to 256 pages for virtio */
23 #define VIRTIODESCSPACE (256ul * 4096ul)
25 typedef int (*intercept_handler_t
)(struct kvm_vcpu
*vcpu
);
27 /* declare vfacilities extern */
28 extern unsigned long *vfacilities
;
30 /* negativ values are error codes, positive values for internal conditions */
31 #define SIE_INTERCEPT_UCONTROL (1<<0)
32 int kvm_handle_sie_intercept(struct kvm_vcpu
*vcpu
);
34 #define VM_EVENT(d_kvm, d_loglevel, d_string, d_args...)\
36 debug_sprintf_event(d_kvm->arch.dbf, d_loglevel, d_string "\n", \
40 #define VCPU_EVENT(d_vcpu, d_loglevel, d_string, d_args...)\
42 debug_sprintf_event(d_vcpu->kvm->arch.dbf, d_loglevel, \
43 "%02d[%016lx-%016lx]: " d_string "\n", d_vcpu->vcpu_id, \
44 d_vcpu->arch.sie_block->gpsw.mask, d_vcpu->arch.sie_block->gpsw.addr,\
48 static inline int __cpu_is_stopped(struct kvm_vcpu
*vcpu
)
50 return atomic_read(&vcpu
->arch
.sie_block
->cpuflags
) & CPUSTAT_STOP_INT
;
53 static inline int kvm_is_ucontrol(struct kvm
*kvm
)
55 #ifdef CONFIG_KVM_S390_UCONTROL
64 static inline void kvm_s390_set_prefix(struct kvm_vcpu
*vcpu
, u32 prefix
)
66 vcpu
->arch
.sie_block
->prefix
= prefix
& 0x7fffe000u
;
67 vcpu
->arch
.sie_block
->ihcpu
= 0xffff;
68 kvm_make_request(KVM_REQ_MMU_RELOAD
, vcpu
);
71 static inline u64
kvm_s390_get_base_disp_s(struct kvm_vcpu
*vcpu
)
73 u32 base2
= vcpu
->arch
.sie_block
->ipb
>> 28;
74 u32 disp2
= ((vcpu
->arch
.sie_block
->ipb
& 0x0fff0000) >> 16);
76 return (base2
? vcpu
->run
->s
.regs
.gprs
[base2
] : 0) + disp2
;
79 static inline void kvm_s390_get_base_disp_sse(struct kvm_vcpu
*vcpu
,
80 u64
*address1
, u64
*address2
)
82 u32 base1
= (vcpu
->arch
.sie_block
->ipb
& 0xf0000000) >> 28;
83 u32 disp1
= (vcpu
->arch
.sie_block
->ipb
& 0x0fff0000) >> 16;
84 u32 base2
= (vcpu
->arch
.sie_block
->ipb
& 0xf000) >> 12;
85 u32 disp2
= vcpu
->arch
.sie_block
->ipb
& 0x0fff;
87 *address1
= (base1
? vcpu
->run
->s
.regs
.gprs
[base1
] : 0) + disp1
;
88 *address2
= (base2
? vcpu
->run
->s
.regs
.gprs
[base2
] : 0) + disp2
;
91 static inline void kvm_s390_get_regs_rre(struct kvm_vcpu
*vcpu
, int *r1
, int *r2
)
94 *r1
= (vcpu
->arch
.sie_block
->ipb
& 0x00f00000) >> 20;
96 *r2
= (vcpu
->arch
.sie_block
->ipb
& 0x000f0000) >> 16;
99 static inline u64
kvm_s390_get_base_disp_rsy(struct kvm_vcpu
*vcpu
)
101 u32 base2
= vcpu
->arch
.sie_block
->ipb
>> 28;
102 u32 disp2
= ((vcpu
->arch
.sie_block
->ipb
& 0x0fff0000) >> 16) +
103 ((vcpu
->arch
.sie_block
->ipb
& 0xff00) << 4);
104 /* The displacement is a 20bit _SIGNED_ value */
108 return (base2
? vcpu
->run
->s
.regs
.gprs
[base2
] : 0) + (long)(int)disp2
;
111 static inline u64
kvm_s390_get_base_disp_rs(struct kvm_vcpu
*vcpu
)
113 u32 base2
= vcpu
->arch
.sie_block
->ipb
>> 28;
114 u32 disp2
= ((vcpu
->arch
.sie_block
->ipb
& 0x0fff0000) >> 16);
116 return (base2
? vcpu
->run
->s
.regs
.gprs
[base2
] : 0) + disp2
;
119 /* Set the condition code in the guest program status word */
120 static inline void kvm_s390_set_psw_cc(struct kvm_vcpu
*vcpu
, unsigned long cc
)
122 vcpu
->arch
.sie_block
->gpsw
.mask
&= ~(3UL << 44);
123 vcpu
->arch
.sie_block
->gpsw
.mask
|= cc
<< 44;
126 int kvm_s390_handle_wait(struct kvm_vcpu
*vcpu
);
127 enum hrtimer_restart
kvm_s390_idle_wakeup(struct hrtimer
*timer
);
128 void kvm_s390_tasklet(unsigned long parm
);
129 void kvm_s390_deliver_pending_interrupts(struct kvm_vcpu
*vcpu
);
130 void kvm_s390_deliver_pending_machine_checks(struct kvm_vcpu
*vcpu
);
131 int __must_check
kvm_s390_inject_vm(struct kvm
*kvm
,
132 struct kvm_s390_interrupt
*s390int
);
133 int __must_check
kvm_s390_inject_vcpu(struct kvm_vcpu
*vcpu
,
134 struct kvm_s390_interrupt
*s390int
);
135 int __must_check
kvm_s390_inject_program_int(struct kvm_vcpu
*vcpu
, u16 code
);
136 int __must_check
kvm_s390_inject_sigp_stop(struct kvm_vcpu
*vcpu
, int action
);
137 struct kvm_s390_interrupt_info
*kvm_s390_get_io_int(struct kvm
*kvm
,
140 /* implemented in priv.c */
141 int kvm_s390_handle_b2(struct kvm_vcpu
*vcpu
);
142 int kvm_s390_handle_e5(struct kvm_vcpu
*vcpu
);
143 int kvm_s390_handle_01(struct kvm_vcpu
*vcpu
);
144 int kvm_s390_handle_b9(struct kvm_vcpu
*vcpu
);
145 int kvm_s390_handle_lpsw(struct kvm_vcpu
*vcpu
);
146 int kvm_s390_handle_lctl(struct kvm_vcpu
*vcpu
);
147 int kvm_s390_handle_eb(struct kvm_vcpu
*vcpu
);
149 /* implemented in sigp.c */
150 int kvm_s390_handle_sigp(struct kvm_vcpu
*vcpu
);
152 /* implemented in kvm-s390.c */
153 int kvm_s390_vcpu_store_status(struct kvm_vcpu
*vcpu
,
155 void s390_vcpu_block(struct kvm_vcpu
*vcpu
);
156 void s390_vcpu_unblock(struct kvm_vcpu
*vcpu
);
157 void exit_sie(struct kvm_vcpu
*vcpu
);
158 void exit_sie_sync(struct kvm_vcpu
*vcpu
);
159 /* implemented in diag.c */
160 int kvm_s390_handle_diag(struct kvm_vcpu
*vcpu
);