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b0c632db HC |
1 | /* |
2 | * kvm_s390.h - definition for kvm on s390 | |
3 | * | |
628eb9b8 | 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 | ||
ba5c1e9b | 68 | int kvm_s390_handle_wait(struct kvm_vcpu *vcpu); |
ca872302 CB |
69 | enum hrtimer_restart kvm_s390_idle_wakeup(struct hrtimer *timer); |
70 | void kvm_s390_tasklet(unsigned long parm); | |
ba5c1e9b CO |
71 | void kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu); |
72 | int kvm_s390_inject_vm(struct kvm *kvm, | |
73 | struct kvm_s390_interrupt *s390int); | |
74 | int kvm_s390_inject_vcpu(struct kvm_vcpu *vcpu, | |
75 | struct kvm_s390_interrupt *s390int); | |
76 | int kvm_s390_inject_program_int(struct kvm_vcpu *vcpu, u16 code); | |
9ace903d | 77 | int kvm_s390_inject_sigp_stop(struct kvm_vcpu *vcpu, int action); |
453423dc CB |
78 | |
79 | /* implemented in priv.c */ | |
70455a36 | 80 | int kvm_s390_handle_b2(struct kvm_vcpu *vcpu); |
bb25b9ba | 81 | int kvm_s390_handle_e5(struct kvm_vcpu *vcpu); |
8c3f61e2 | 82 | int kvm_s390_handle_01(struct kvm_vcpu *vcpu); |
5288fbf0 CB |
83 | |
84 | /* implemented in sigp.c */ | |
85 | int kvm_s390_handle_sigp(struct kvm_vcpu *vcpu); | |
86 | ||
87 | /* implemented in kvm-s390.c */ | |
971eb77f | 88 | int kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, |
5288fbf0 | 89 | unsigned long addr); |
e28acfea CB |
90 | /* implemented in diag.c */ |
91 | int kvm_s390_handle_diag(struct kvm_vcpu *vcpu); | |
92 | ||
b0c632db | 93 | #endif |