Commit | Line | Data |
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b0c632db | 1 | /* |
a53c8fab | 2 | * definition for kvm on s390 |
b0c632db | 3 | * |
a53c8fab | 4 | * Copyright IBM Corp. 2008, 2009 |
b0c632db HC |
5 | * |
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. | |
9 | * | |
10 | * Author(s): Carsten Otte <cotte@de.ibm.com> | |
11 | * Christian Borntraeger <borntraeger@de.ibm.com> | |
628eb9b8 | 12 | * Christian Ehrhardt <ehrhardt@de.ibm.com> |
b0c632db HC |
13 | */ |
14 | ||
15 | #ifndef ARCH_S390_KVM_S390_H | |
16 | #define ARCH_S390_KVM_S390_H | |
8f2abe6a | 17 | |
ca872302 | 18 | #include <linux/hrtimer.h> |
ba5c1e9b | 19 | #include <linux/kvm.h> |
8f2abe6a CB |
20 | #include <linux/kvm_host.h> |
21 | ||
628eb9b8 CE |
22 | /* The current code can have up to 256 pages for virtio */ |
23 | #define VIRTIODESCSPACE (256ul * 4096ul) | |
24 | ||
8f2abe6a CB |
25 | typedef int (*intercept_handler_t)(struct kvm_vcpu *vcpu); |
26 | ||
78c4b59f MM |
27 | /* declare vfacilities extern */ |
28 | extern unsigned long *vfacilities; | |
29 | ||
9ace903d CE |
30 | /* negativ values are error codes, positive values for internal conditions */ |
31 | #define SIE_INTERCEPT_RERUNVCPU (1<<0) | |
e168bf8d | 32 | #define SIE_INTERCEPT_UCONTROL (1<<1) |
8f2abe6a CB |
33 | int kvm_handle_sie_intercept(struct kvm_vcpu *vcpu); |
34 | ||
b0c632db HC |
35 | #define VM_EVENT(d_kvm, d_loglevel, d_string, d_args...)\ |
36 | do { \ | |
37 | debug_sprintf_event(d_kvm->arch.dbf, d_loglevel, d_string "\n", \ | |
38 | d_args); \ | |
39 | } while (0) | |
40 | ||
41 | #define VCPU_EVENT(d_vcpu, d_loglevel, d_string, d_args...)\ | |
42 | do { \ | |
43 | debug_sprintf_event(d_vcpu->kvm->arch.dbf, d_loglevel, \ | |
44 | "%02d[%016lx-%016lx]: " d_string "\n", d_vcpu->vcpu_id, \ | |
45 | d_vcpu->arch.sie_block->gpsw.mask, d_vcpu->arch.sie_block->gpsw.addr,\ | |
46 | d_args); \ | |
47 | } while (0) | |
ba5c1e9b CO |
48 | |
49 | static inline int __cpu_is_stopped(struct kvm_vcpu *vcpu) | |
50 | { | |
51 | return atomic_read(&vcpu->arch.sie_block->cpuflags) & CPUSTAT_STOP_INT; | |
52 | } | |
53 | ||
e08b9637 CO |
54 | static inline int kvm_is_ucontrol(struct kvm *kvm) |
55 | { | |
56 | #ifdef CONFIG_KVM_S390_UCONTROL | |
57 | if (kvm->arch.gmap) | |
58 | return 0; | |
59 | return 1; | |
60 | #else | |
61 | return 0; | |
62 | #endif | |
63 | } | |
8d26cf7b CB |
64 | |
65 | static inline void kvm_s390_set_prefix(struct kvm_vcpu *vcpu, u32 prefix) | |
66 | { | |
67 | vcpu->arch.sie_block->prefix = prefix & 0x7fffe000u; | |
68 | vcpu->arch.sie_block->ihcpu = 0xffff; | |
2c70fe44 | 69 | kvm_make_request(KVM_REQ_MMU_RELOAD, vcpu); |
8d26cf7b CB |
70 | } |
71 | ||
b1c571a5 CH |
72 | static inline u64 kvm_s390_get_base_disp_s(struct kvm_vcpu *vcpu) |
73 | { | |
0c29b229 CB |
74 | u32 base2 = vcpu->arch.sie_block->ipb >> 28; |
75 | u32 disp2 = ((vcpu->arch.sie_block->ipb & 0x0fff0000) >> 16); | |
b1c571a5 CH |
76 | |
77 | return (base2 ? vcpu->run->s.regs.gprs[base2] : 0) + disp2; | |
78 | } | |
79 | ||
80 | static inline void kvm_s390_get_base_disp_sse(struct kvm_vcpu *vcpu, | |
81 | u64 *address1, u64 *address2) | |
82 | { | |
0c29b229 CB |
83 | u32 base1 = (vcpu->arch.sie_block->ipb & 0xf0000000) >> 28; |
84 | u32 disp1 = (vcpu->arch.sie_block->ipb & 0x0fff0000) >> 16; | |
85 | u32 base2 = (vcpu->arch.sie_block->ipb & 0xf000) >> 12; | |
86 | u32 disp2 = vcpu->arch.sie_block->ipb & 0x0fff; | |
b1c571a5 CH |
87 | |
88 | *address1 = (base1 ? vcpu->run->s.regs.gprs[base1] : 0) + disp1; | |
89 | *address2 = (base2 ? vcpu->run->s.regs.gprs[base2] : 0) + disp2; | |
90 | } | |
91 | ||
69d0d3a3 CB |
92 | static inline void kvm_s390_get_regs_rre(struct kvm_vcpu *vcpu, int *r1, int *r2) |
93 | { | |
94 | *r1 = (vcpu->arch.sie_block->ipb & 0x00f00000) >> 20; | |
95 | *r2 = (vcpu->arch.sie_block->ipb & 0x000f0000) >> 16; | |
96 | } | |
97 | ||
b1c571a5 CH |
98 | static inline u64 kvm_s390_get_base_disp_rsy(struct kvm_vcpu *vcpu) |
99 | { | |
0c29b229 CB |
100 | u32 base2 = vcpu->arch.sie_block->ipb >> 28; |
101 | u32 disp2 = ((vcpu->arch.sie_block->ipb & 0x0fff0000) >> 16) + | |
b1c571a5 | 102 | ((vcpu->arch.sie_block->ipb & 0xff00) << 4); |
0c29b229 CB |
103 | /* The displacement is a 20bit _SIGNED_ value */ |
104 | if (disp2 & 0x80000) | |
105 | disp2+=0xfff00000; | |
b1c571a5 | 106 | |
0c29b229 | 107 | return (base2 ? vcpu->run->s.regs.gprs[base2] : 0) + (long)(int)disp2; |
b1c571a5 CH |
108 | } |
109 | ||
110 | static inline u64 kvm_s390_get_base_disp_rs(struct kvm_vcpu *vcpu) | |
111 | { | |
0c29b229 CB |
112 | u32 base2 = vcpu->arch.sie_block->ipb >> 28; |
113 | u32 disp2 = ((vcpu->arch.sie_block->ipb & 0x0fff0000) >> 16); | |
b1c571a5 CH |
114 | |
115 | return (base2 ? vcpu->run->s.regs.gprs[base2] : 0) + disp2; | |
116 | } | |
117 | ||
ba5c1e9b | 118 | int kvm_s390_handle_wait(struct kvm_vcpu *vcpu); |
ca872302 CB |
119 | enum hrtimer_restart kvm_s390_idle_wakeup(struct hrtimer *timer); |
120 | void kvm_s390_tasklet(unsigned long parm); | |
ba5c1e9b | 121 | void kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu); |
48a3e950 | 122 | void kvm_s390_deliver_pending_machine_checks(struct kvm_vcpu *vcpu); |
db4a29cb HC |
123 | int __must_check kvm_s390_inject_vm(struct kvm *kvm, |
124 | struct kvm_s390_interrupt *s390int); | |
125 | int __must_check kvm_s390_inject_vcpu(struct kvm_vcpu *vcpu, | |
126 | struct kvm_s390_interrupt *s390int); | |
127 | int __must_check kvm_s390_inject_program_int(struct kvm_vcpu *vcpu, u16 code); | |
128 | int __must_check kvm_s390_inject_sigp_stop(struct kvm_vcpu *vcpu, int action); | |
fa6b7fe9 CH |
129 | struct kvm_s390_interrupt_info *kvm_s390_get_io_int(struct kvm *kvm, |
130 | u64 cr6, u64 schid); | |
453423dc CB |
131 | |
132 | /* implemented in priv.c */ | |
70455a36 | 133 | int kvm_s390_handle_b2(struct kvm_vcpu *vcpu); |
bb25b9ba | 134 | int kvm_s390_handle_e5(struct kvm_vcpu *vcpu); |
8c3f61e2 | 135 | int kvm_s390_handle_01(struct kvm_vcpu *vcpu); |
48a3e950 CH |
136 | int kvm_s390_handle_b9(struct kvm_vcpu *vcpu); |
137 | int kvm_s390_handle_lpsw(struct kvm_vcpu *vcpu); | |
953ed88d TH |
138 | int kvm_s390_handle_lctl(struct kvm_vcpu *vcpu); |
139 | int kvm_s390_handle_eb(struct kvm_vcpu *vcpu); | |
5288fbf0 CB |
140 | |
141 | /* implemented in sigp.c */ | |
142 | int kvm_s390_handle_sigp(struct kvm_vcpu *vcpu); | |
143 | ||
144 | /* implemented in kvm-s390.c */ | |
971eb77f | 145 | int kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, |
5288fbf0 | 146 | unsigned long addr); |
49b99e1e CB |
147 | void s390_vcpu_block(struct kvm_vcpu *vcpu); |
148 | void s390_vcpu_unblock(struct kvm_vcpu *vcpu); | |
149 | void exit_sie(struct kvm_vcpu *vcpu); | |
150 | void exit_sie_sync(struct kvm_vcpu *vcpu); | |
e28acfea CB |
151 | /* implemented in diag.c */ |
152 | int kvm_s390_handle_diag(struct kvm_vcpu *vcpu); | |
153 | ||
b0c632db | 154 | #endif |