Heiko Carstens | b0c632d | 2008-03-25 18:47:20 +0100 | [diff] [blame] | 1 | /* |
Heiko Carstens | a53c8fa | 2012-07-20 11:15:04 +0200 | [diff] [blame] | 2 | * definition for kvm on s390 |
Heiko Carstens | b0c632d | 2008-03-25 18:47:20 +0100 | [diff] [blame] | 3 | * |
Heiko Carstens | a53c8fa | 2012-07-20 11:15:04 +0200 | [diff] [blame] | 4 | * Copyright IBM Corp. 2008, 2009 |
Heiko Carstens | b0c632d | 2008-03-25 18:47:20 +0100 | [diff] [blame] | 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> |
Christian Ehrhardt | 628eb9b | 2009-05-25 13:40:51 +0200 | [diff] [blame] | 12 | * Christian Ehrhardt <ehrhardt@de.ibm.com> |
Heiko Carstens | b0c632d | 2008-03-25 18:47:20 +0100 | [diff] [blame] | 13 | */ |
| 14 | |
| 15 | #ifndef ARCH_S390_KVM_S390_H |
| 16 | #define ARCH_S390_KVM_S390_H |
Christian Borntraeger | 8f2abe6 | 2008-03-25 18:47:23 +0100 | [diff] [blame] | 17 | |
Christian Borntraeger | ca87230 | 2009-05-12 17:21:49 +0200 | [diff] [blame] | 18 | #include <linux/hrtimer.h> |
Carsten Otte | ba5c1e9 | 2008-03-25 18:47:26 +0100 | [diff] [blame] | 19 | #include <linux/kvm.h> |
Christian Borntraeger | 8f2abe6 | 2008-03-25 18:47:23 +0100 | [diff] [blame] | 20 | #include <linux/kvm_host.h> |
| 21 | |
Christian Ehrhardt | 628eb9b | 2009-05-25 13:40:51 +0200 | [diff] [blame] | 22 | /* The current code can have up to 256 pages for virtio */ |
| 23 | #define VIRTIODESCSPACE (256ul * 4096ul) |
| 24 | |
Christian Borntraeger | 8f2abe6 | 2008-03-25 18:47:23 +0100 | [diff] [blame] | 25 | typedef int (*intercept_handler_t)(struct kvm_vcpu *vcpu); |
| 26 | |
Christian Ehrhardt | 9ace903 | 2009-05-20 15:34:55 +0200 | [diff] [blame] | 27 | /* negativ values are error codes, positive values for internal conditions */ |
| 28 | #define SIE_INTERCEPT_RERUNVCPU (1<<0) |
Carsten Otte | e168bf8 | 2012-01-04 10:25:22 +0100 | [diff] [blame] | 29 | #define SIE_INTERCEPT_UCONTROL (1<<1) |
Christian Borntraeger | 8f2abe6 | 2008-03-25 18:47:23 +0100 | [diff] [blame] | 30 | int kvm_handle_sie_intercept(struct kvm_vcpu *vcpu); |
| 31 | |
Heiko Carstens | b0c632d | 2008-03-25 18:47:20 +0100 | [diff] [blame] | 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) |
Carsten Otte | ba5c1e9 | 2008-03-25 18:47:26 +0100 | [diff] [blame] | 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 | |
Carsten Otte | e08b963 | 2012-01-04 10:25:20 +0100 | [diff] [blame] | 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 | } |
Christian Borntraeger | 8d26cf7 | 2012-01-11 11:19:32 +0100 | [diff] [blame] | 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 | |
Carsten Otte | ba5c1e9 | 2008-03-25 18:47:26 +0100 | [diff] [blame] | 68 | int kvm_s390_handle_wait(struct kvm_vcpu *vcpu); |
Christian Borntraeger | ca87230 | 2009-05-12 17:21:49 +0200 | [diff] [blame] | 69 | enum hrtimer_restart kvm_s390_idle_wakeup(struct hrtimer *timer); |
| 70 | void kvm_s390_tasklet(unsigned long parm); |
Carsten Otte | ba5c1e9 | 2008-03-25 18:47:26 +0100 | [diff] [blame] | 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); |
Christian Ehrhardt | 9ace903 | 2009-05-20 15:34:55 +0200 | [diff] [blame] | 77 | int kvm_s390_inject_sigp_stop(struct kvm_vcpu *vcpu, int action); |
Christian Borntraeger | 453423d | 2008-03-25 18:47:29 +0100 | [diff] [blame] | 78 | |
| 79 | /* implemented in priv.c */ |
Christian Borntraeger | 70455a3 | 2009-01-22 10:28:29 +0100 | [diff] [blame] | 80 | int kvm_s390_handle_b2(struct kvm_vcpu *vcpu); |
Christian Borntraeger | bb25b9b | 2011-07-24 10:48:17 +0200 | [diff] [blame] | 81 | int kvm_s390_handle_e5(struct kvm_vcpu *vcpu); |
Cornelia Huck | 8c3f61e | 2012-04-24 09:24:44 +0200 | [diff] [blame] | 82 | int kvm_s390_handle_01(struct kvm_vcpu *vcpu); |
Christian Borntraeger | 5288fbf | 2008-03-25 18:47:31 +0100 | [diff] [blame] | 83 | |
| 84 | /* implemented in sigp.c */ |
| 85 | int kvm_s390_handle_sigp(struct kvm_vcpu *vcpu); |
| 86 | |
| 87 | /* implemented in kvm-s390.c */ |
Christian Borntraeger | 971eb77 | 2010-06-12 08:54:13 +0200 | [diff] [blame] | 88 | int kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, |
Christian Borntraeger | 5288fbf | 2008-03-25 18:47:31 +0100 | [diff] [blame] | 89 | unsigned long addr); |
Christian Borntraeger | e28acfe | 2008-03-25 18:47:34 +0100 | [diff] [blame] | 90 | /* implemented in diag.c */ |
| 91 | int kvm_s390_handle_diag(struct kvm_vcpu *vcpu); |
| 92 | |
Heiko Carstens | b0c632d | 2008-03-25 18:47:20 +0100 | [diff] [blame] | 93 | #endif |