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 | ||
9ace903d CE |
27 | /* negativ values are error codes, positive values for internal conditions */ |
28 | #define SIE_INTERCEPT_RERUNVCPU (1<<0) | |
e168bf8d | 29 | #define SIE_INTERCEPT_UCONTROL (1<<1) |
8f2abe6a CB |
30 | int kvm_handle_sie_intercept(struct kvm_vcpu *vcpu); |
31 | ||
b0c632db HC |
32 | #define VM_EVENT(d_kvm, d_loglevel, d_string, d_args...)\ |
33 | do { \ | |
34 | debug_sprintf_event(d_kvm->arch.dbf, d_loglevel, d_string "\n", \ | |
35 | d_args); \ | |
36 | } while (0) | |
37 | ||
38 | #define VCPU_EVENT(d_vcpu, d_loglevel, d_string, d_args...)\ | |
39 | do { \ | |
40 | debug_sprintf_event(d_vcpu->kvm->arch.dbf, d_loglevel, \ | |
41 | "%02d[%016lx-%016lx]: " d_string "\n", d_vcpu->vcpu_id, \ | |
42 | d_vcpu->arch.sie_block->gpsw.mask, d_vcpu->arch.sie_block->gpsw.addr,\ | |
43 | d_args); \ | |
44 | } while (0) | |
ba5c1e9b CO |
45 | |
46 | static inline int __cpu_is_stopped(struct kvm_vcpu *vcpu) | |
47 | { | |
48 | return atomic_read(&vcpu->arch.sie_block->cpuflags) & CPUSTAT_STOP_INT; | |
49 | } | |
50 | ||
e08b9637 CO |
51 | static inline int kvm_is_ucontrol(struct kvm *kvm) |
52 | { | |
53 | #ifdef CONFIG_KVM_S390_UCONTROL | |
54 | if (kvm->arch.gmap) | |
55 | return 0; | |
56 | return 1; | |
57 | #else | |
58 | return 0; | |
59 | #endif | |
60 | } | |
8d26cf7b CB |
61 | |
62 | static inline void kvm_s390_set_prefix(struct kvm_vcpu *vcpu, u32 prefix) | |
63 | { | |
64 | vcpu->arch.sie_block->prefix = prefix & 0x7fffe000u; | |
65 | vcpu->arch.sie_block->ihcpu = 0xffff; | |
66 | } | |
67 | ||
b1c571a5 CH |
68 | static inline u64 kvm_s390_get_base_disp_s(struct kvm_vcpu *vcpu) |
69 | { | |
70 | int base2 = vcpu->arch.sie_block->ipb >> 28; | |
71 | int disp2 = ((vcpu->arch.sie_block->ipb & 0x0fff0000) >> 16); | |
72 | ||
73 | return (base2 ? vcpu->run->s.regs.gprs[base2] : 0) + disp2; | |
74 | } | |
75 | ||
76 | static inline void kvm_s390_get_base_disp_sse(struct kvm_vcpu *vcpu, | |
77 | u64 *address1, u64 *address2) | |
78 | { | |
79 | int base1 = (vcpu->arch.sie_block->ipb & 0xf0000000) >> 28; | |
80 | int disp1 = (vcpu->arch.sie_block->ipb & 0x0fff0000) >> 16; | |
81 | int base2 = (vcpu->arch.sie_block->ipb & 0xf000) >> 12; | |
82 | int disp2 = vcpu->arch.sie_block->ipb & 0x0fff; | |
83 | ||
84 | *address1 = (base1 ? vcpu->run->s.regs.gprs[base1] : 0) + disp1; | |
85 | *address2 = (base2 ? vcpu->run->s.regs.gprs[base2] : 0) + disp2; | |
86 | } | |
87 | ||
88 | static inline u64 kvm_s390_get_base_disp_rsy(struct kvm_vcpu *vcpu) | |
89 | { | |
90 | int base2 = vcpu->arch.sie_block->ipb >> 28; | |
91 | int disp2 = ((vcpu->arch.sie_block->ipb & 0x0fff0000) >> 16) + | |
92 | ((vcpu->arch.sie_block->ipb & 0xff00) << 4); | |
93 | ||
94 | return (base2 ? vcpu->run->s.regs.gprs[base2] : 0) + disp2; | |
95 | } | |
96 | ||
97 | static inline u64 kvm_s390_get_base_disp_rs(struct kvm_vcpu *vcpu) | |
98 | { | |
99 | int base2 = vcpu->arch.sie_block->ipb >> 28; | |
100 | int disp2 = ((vcpu->arch.sie_block->ipb & 0x0fff0000) >> 16); | |
101 | ||
102 | return (base2 ? vcpu->run->s.regs.gprs[base2] : 0) + disp2; | |
103 | } | |
104 | ||
ba5c1e9b | 105 | int kvm_s390_handle_wait(struct kvm_vcpu *vcpu); |
ca872302 CB |
106 | enum hrtimer_restart kvm_s390_idle_wakeup(struct hrtimer *timer); |
107 | void kvm_s390_tasklet(unsigned long parm); | |
ba5c1e9b | 108 | void kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu); |
48a3e950 | 109 | void kvm_s390_deliver_pending_machine_checks(struct kvm_vcpu *vcpu); |
ba5c1e9b CO |
110 | int kvm_s390_inject_vm(struct kvm *kvm, |
111 | struct kvm_s390_interrupt *s390int); | |
112 | int kvm_s390_inject_vcpu(struct kvm_vcpu *vcpu, | |
113 | struct kvm_s390_interrupt *s390int); | |
114 | int kvm_s390_inject_program_int(struct kvm_vcpu *vcpu, u16 code); | |
9ace903d | 115 | int kvm_s390_inject_sigp_stop(struct kvm_vcpu *vcpu, int action); |
fa6b7fe9 CH |
116 | struct kvm_s390_interrupt_info *kvm_s390_get_io_int(struct kvm *kvm, |
117 | u64 cr6, u64 schid); | |
453423dc CB |
118 | |
119 | /* implemented in priv.c */ | |
70455a36 | 120 | int kvm_s390_handle_b2(struct kvm_vcpu *vcpu); |
bb25b9ba | 121 | int kvm_s390_handle_e5(struct kvm_vcpu *vcpu); |
8c3f61e2 | 122 | int kvm_s390_handle_01(struct kvm_vcpu *vcpu); |
48a3e950 CH |
123 | int kvm_s390_handle_b9(struct kvm_vcpu *vcpu); |
124 | int kvm_s390_handle_lpsw(struct kvm_vcpu *vcpu); | |
f379aae5 | 125 | int kvm_s390_handle_priv_eb(struct kvm_vcpu *vcpu); |
5288fbf0 CB |
126 | |
127 | /* implemented in sigp.c */ | |
128 | int kvm_s390_handle_sigp(struct kvm_vcpu *vcpu); | |
129 | ||
130 | /* implemented in kvm-s390.c */ | |
971eb77f | 131 | int kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, |
5288fbf0 | 132 | unsigned long addr); |
e28acfea CB |
133 | /* implemented in diag.c */ |
134 | int kvm_s390_handle_diag(struct kvm_vcpu *vcpu); | |
135 | ||
b0c632db | 136 | #endif |