Heiko Carstens | b0c632d | 2008-03-25 18:47:20 +0100 | [diff] [blame] | 1 | /* |
| 2 | * kvm_s390.h - definition for kvm on s390 |
| 3 | * |
Christian Ehrhardt | 628eb9b | 2009-05-25 13:40:51 +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) |
Christian Borntraeger | 8f2abe6 | 2008-03-25 18:47:23 +0100 | [diff] [blame] | 29 | int kvm_handle_sie_intercept(struct kvm_vcpu *vcpu); |
| 30 | |
Heiko Carstens | b0c632d | 2008-03-25 18:47:20 +0100 | [diff] [blame] | 31 | #define VM_EVENT(d_kvm, d_loglevel, d_string, d_args...)\ |
| 32 | do { \ |
| 33 | debug_sprintf_event(d_kvm->arch.dbf, d_loglevel, d_string "\n", \ |
| 34 | d_args); \ |
| 35 | } while (0) |
| 36 | |
| 37 | #define VCPU_EVENT(d_vcpu, d_loglevel, d_string, d_args...)\ |
| 38 | do { \ |
| 39 | debug_sprintf_event(d_vcpu->kvm->arch.dbf, d_loglevel, \ |
| 40 | "%02d[%016lx-%016lx]: " d_string "\n", d_vcpu->vcpu_id, \ |
| 41 | d_vcpu->arch.sie_block->gpsw.mask, d_vcpu->arch.sie_block->gpsw.addr,\ |
| 42 | d_args); \ |
| 43 | } while (0) |
Carsten Otte | ba5c1e9 | 2008-03-25 18:47:26 +0100 | [diff] [blame] | 44 | |
| 45 | static inline int __cpu_is_stopped(struct kvm_vcpu *vcpu) |
| 46 | { |
| 47 | return atomic_read(&vcpu->arch.sie_block->cpuflags) & CPUSTAT_STOP_INT; |
| 48 | } |
| 49 | |
| 50 | int kvm_s390_handle_wait(struct kvm_vcpu *vcpu); |
Christian Borntraeger | ca87230 | 2009-05-12 17:21:49 +0200 | [diff] [blame] | 51 | enum hrtimer_restart kvm_s390_idle_wakeup(struct hrtimer *timer); |
| 52 | void kvm_s390_tasklet(unsigned long parm); |
Carsten Otte | ba5c1e9 | 2008-03-25 18:47:26 +0100 | [diff] [blame] | 53 | void kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu); |
| 54 | int kvm_s390_inject_vm(struct kvm *kvm, |
| 55 | struct kvm_s390_interrupt *s390int); |
| 56 | int kvm_s390_inject_vcpu(struct kvm_vcpu *vcpu, |
| 57 | struct kvm_s390_interrupt *s390int); |
| 58 | int kvm_s390_inject_program_int(struct kvm_vcpu *vcpu, u16 code); |
Christian Ehrhardt | 9ace903 | 2009-05-20 15:34:55 +0200 | [diff] [blame] | 59 | int kvm_s390_inject_sigp_stop(struct kvm_vcpu *vcpu, int action); |
Christian Borntraeger | 453423d | 2008-03-25 18:47:29 +0100 | [diff] [blame] | 60 | |
Christian Borntraeger | 8feda6f | 2009-09-21 10:45:18 +0200 | [diff] [blame] | 61 | static inline long kvm_s390_vcpu_get_memsize(struct kvm_vcpu *vcpu) |
Christian Ehrhardt | 628eb9b | 2009-05-25 13:40:51 +0200 | [diff] [blame] | 62 | { |
| 63 | return vcpu->arch.sie_block->gmslm |
| 64 | - vcpu->arch.sie_block->gmsor |
| 65 | - VIRTIODESCSPACE + 1ul; |
| 66 | } |
| 67 | |
| 68 | static inline void kvm_s390_vcpu_set_mem(struct kvm_vcpu *vcpu) |
| 69 | { |
Marcelo Tosatti | f656ce0 | 2009-12-23 14:35:25 -0200 | [diff] [blame] | 70 | int idx; |
Christian Ehrhardt | 628eb9b | 2009-05-25 13:40:51 +0200 | [diff] [blame] | 71 | struct kvm_memory_slot *mem; |
Marcelo Tosatti | f656ce0 | 2009-12-23 14:35:25 -0200 | [diff] [blame] | 72 | struct kvm_memslots *memslots; |
Christian Ehrhardt | 628eb9b | 2009-05-25 13:40:51 +0200 | [diff] [blame] | 73 | |
Marcelo Tosatti | f656ce0 | 2009-12-23 14:35:25 -0200 | [diff] [blame] | 74 | idx = srcu_read_lock(&vcpu->kvm->srcu); |
Lai Jiangshan | 90d83dc | 2010-04-19 17:41:23 +0800 | [diff] [blame] | 75 | memslots = kvm_memslots(vcpu->kvm); |
Marcelo Tosatti | f656ce0 | 2009-12-23 14:35:25 -0200 | [diff] [blame] | 76 | |
| 77 | mem = &memslots->memslots[0]; |
Christian Ehrhardt | 628eb9b | 2009-05-25 13:40:51 +0200 | [diff] [blame] | 78 | |
| 79 | vcpu->arch.sie_block->gmsor = mem->userspace_addr; |
| 80 | vcpu->arch.sie_block->gmslm = |
| 81 | mem->userspace_addr + |
| 82 | (mem->npages << PAGE_SHIFT) + |
| 83 | VIRTIODESCSPACE - 1ul; |
| 84 | |
Marcelo Tosatti | f656ce0 | 2009-12-23 14:35:25 -0200 | [diff] [blame] | 85 | srcu_read_unlock(&vcpu->kvm->srcu, idx); |
Christian Ehrhardt | 628eb9b | 2009-05-25 13:40:51 +0200 | [diff] [blame] | 86 | } |
| 87 | |
Christian Borntraeger | 453423d | 2008-03-25 18:47:29 +0100 | [diff] [blame] | 88 | /* implemented in priv.c */ |
Christian Borntraeger | 70455a3 | 2009-01-22 10:28:29 +0100 | [diff] [blame] | 89 | int kvm_s390_handle_b2(struct kvm_vcpu *vcpu); |
Christian Borntraeger | 5288fbf | 2008-03-25 18:47:31 +0100 | [diff] [blame] | 90 | |
| 91 | /* implemented in sigp.c */ |
| 92 | int kvm_s390_handle_sigp(struct kvm_vcpu *vcpu); |
| 93 | |
| 94 | /* implemented in kvm-s390.c */ |
Christian Borntraeger | 971eb77 | 2010-06-12 08:54:13 +0200 | [diff] [blame^] | 95 | int kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, |
Christian Borntraeger | 5288fbf | 2008-03-25 18:47:31 +0100 | [diff] [blame] | 96 | unsigned long addr); |
Christian Borntraeger | e28acfe | 2008-03-25 18:47:34 +0100 | [diff] [blame] | 97 | /* implemented in diag.c */ |
| 98 | int kvm_s390_handle_diag(struct kvm_vcpu *vcpu); |
| 99 | |
Heiko Carstens | b0c632d | 2008-03-25 18:47:20 +0100 | [diff] [blame] | 100 | #endif |