1 /* 2 * Protected Virtualization header 3 * 4 * Copyright IBM Corp. 2020 5 * Author(s): 6 * Janosch Frank <frankja@linux.ibm.com> 7 * 8 * This work is licensed under the terms of the GNU GPL, version 2 or (at 9 * your option) any later version. See the COPYING file in the top-level 10 * directory. 11 */ 12 #ifndef HW_S390_PV_H 13 #define HW_S390_PV_H 14 15 #include "qapi/error.h" 16 #include "sysemu/kvm.h" 17 #include "hw/s390x/s390-virtio-ccw.h" 18 19 #ifdef CONFIG_KVM 20 #include "cpu.h" 21 22 static inline bool s390_is_pv(void) 23 { 24 static S390CcwMachineState *ccw; 25 Object *obj; 26 27 if (ccw) { 28 return ccw->pv; 29 } 30 31 /* we have to bail out for the "none" machine */ 32 obj = object_dynamic_cast(qdev_get_machine(), 33 TYPE_S390_CCW_MACHINE); 34 if (!obj) { 35 return false; 36 } 37 ccw = S390_CCW_MACHINE(obj); 38 return ccw->pv; 39 } 40 41 int s390_pv_query_info(void); 42 int s390_pv_vm_enable(void); 43 void s390_pv_vm_disable(void); 44 bool s390_pv_vm_try_disable_async(S390CcwMachineState *ms); 45 int s390_pv_set_sec_parms(uint64_t origin, uint64_t length); 46 int s390_pv_unpack(uint64_t addr, uint64_t size, uint64_t tweak); 47 void s390_pv_prep_reset(void); 48 int s390_pv_verify(void); 49 void s390_pv_unshare(void); 50 void s390_pv_inject_reset_error(CPUState *cs); 51 uint64_t kvm_s390_pv_dmp_get_size_cpu(void); 52 uint64_t kvm_s390_pv_dmp_get_size_mem_state(void); 53 uint64_t kvm_s390_pv_dmp_get_size_completion_data(void); 54 bool kvm_s390_pv_info_basic_valid(void); 55 int kvm_s390_dump_init(void); 56 int kvm_s390_dump_cpu(S390CPU *cpu, void *buff); 57 int kvm_s390_dump_mem_state(uint64_t addr, size_t len, void *dest); 58 int kvm_s390_dump_completion_data(void *buff); 59 #else /* CONFIG_KVM */ 60 static inline bool s390_is_pv(void) { return false; } 61 static inline int s390_pv_query_info(void) { return 0; } 62 static inline int s390_pv_vm_enable(void) { return 0; } 63 static inline void s390_pv_vm_disable(void) {} 64 static inline bool s390_pv_vm_try_disable_async(S390CcwMachineState *ms) { return false; } 65 static inline int s390_pv_set_sec_parms(uint64_t origin, uint64_t length) { return 0; } 66 static inline int s390_pv_unpack(uint64_t addr, uint64_t size, uint64_t tweak) { return 0; } 67 static inline void s390_pv_prep_reset(void) {} 68 static inline int s390_pv_verify(void) { return 0; } 69 static inline void s390_pv_unshare(void) {} 70 static inline void s390_pv_inject_reset_error(CPUState *cs) {}; 71 static inline uint64_t kvm_s390_pv_dmp_get_size_cpu(void) { return 0; } 72 static inline uint64_t kvm_s390_pv_dmp_get_size_mem_state(void) { return 0; } 73 static inline uint64_t kvm_s390_pv_dmp_get_size_completion_data(void) { return 0; } 74 static inline bool kvm_s390_pv_info_basic_valid(void) { return false; } 75 static inline int kvm_s390_dump_init(void) { return 0; } 76 static inline int kvm_s390_dump_cpu(S390CPU *cpu, void *buff) { return 0; } 77 static inline int kvm_s390_dump_mem_state(uint64_t addr, size_t len, 78 void *dest) { return 0; } 79 static inline int kvm_s390_dump_completion_data(void *buff) { return 0; } 80 #endif /* CONFIG_KVM */ 81 82 int s390_pv_kvm_init(ConfidentialGuestSupport *cgs, Error **errp); 83 static inline int s390_pv_init(ConfidentialGuestSupport *cgs, Error **errp) 84 { 85 if (!cgs) { 86 return 0; 87 } 88 if (kvm_enabled()) { 89 return s390_pv_kvm_init(cgs, errp); 90 } 91 92 error_setg(errp, "Protected Virtualization requires KVM"); 93 return -1; 94 } 95 96 #endif /* HW_S390_PV_H */ 97