| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| David Hildenbrand | 654 | 26.55% | 32 | 31.07% |
| Cornelia Huck | 429 | 17.42% | 8 | 7.77% |
| Christian Bornträger | 340 | 13.80% | 20 | 19.42% |
| Janosch Frank | 258 | 10.48% | 3 | 2.91% |
| Michael Müller | 192 | 7.80% | 7 | 6.80% |
| Thomas Huth | 119 | 4.83% | 7 | 6.80% |
| Carsten Otte | 119 | 4.83% | 2 | 1.94% |
| Heiko Carstens | 78 | 3.17% | 3 | 2.91% |
| Jens Freimann | 63 | 2.56% | 6 | 5.83% |
| Alexander Yarygin | 60 | 2.44% | 1 | 0.97% |
| Dominik Dingel | 35 | 1.42% | 2 | 1.94% |
| Eugene (jno) Dvurechenski | 33 | 1.34% | 2 | 1.94% |
| QingFeng Hao | 23 | 0.93% | 2 | 1.94% |
| Fan Zhang | 18 | 0.73% | 2 | 1.94% |
| Collin L. Walling | 14 | 0.57% | 1 | 0.97% |
| Tony Krowiak | 10 | 0.41% | 1 | 0.97% |
| Farhan Ali | 9 | 0.37% | 1 | 0.97% |
| Eric Farman | 7 | 0.28% | 1 | 0.97% |
| Geert Uytterhoeven | 1 | 0.04% | 1 | 0.97% |
| Greg Kroah-Hartman | 1 | 0.04% | 1 | 0.97% |
| Total | 2463 | 103 |
/* SPDX-License-Identifier: GPL-2.0 */ /* * definition for kvm on s390 * * Copyright IBM Corp. 2008, 2020 * * Author(s): Carsten Otte <cotte@de.ibm.com> * Christian Borntraeger <borntraeger@de.ibm.com> * Christian Ehrhardt <ehrhardt@de.ibm.com> */ #ifndef ARCH_S390_KVM_S390_H #define ARCH_S390_KVM_S390_H #include <linux/hrtimer.h> #include <linux/kvm.h> #include <linux/kvm_host.h> #include <linux/lockdep.h> #include <asm/facility.h> #include <asm/processor.h> #include <asm/sclp.h> /* Transactional Memory Execution related macros */ #define IS_TE_ENABLED(vcpu) ((vcpu->arch.sie_block->ecb & ECB_TE)) #define TDB_FORMAT1 1 #define IS_ITDB_VALID(vcpu) ((*(char *)vcpu->arch.sie_block->itdba == TDB_FORMAT1)) extern debug_info_t *kvm_s390_dbf; extern debug_info_t *kvm_s390_dbf_uv; #define KVM_UV_EVENT(d_kvm, d_loglevel, d_string, d_args...)\ do { \ debug_sprintf_event((d_kvm)->arch.dbf, d_loglevel, d_string "\n", \ d_args); \ debug_sprintf_event(kvm_s390_dbf_uv, d_loglevel, \ "%d: " d_string "\n", (d_kvm)->userspace_pid, \ d_args); \ } while (0) #define KVM_EVENT(d_loglevel, d_string, d_args...)\ do { \ debug_sprintf_event(kvm_s390_dbf, d_loglevel, d_string "\n", \ d_args); \ } while (0) #define VM_EVENT(d_kvm, d_loglevel, d_string, d_args...)\ do { \ debug_sprintf_event(d_kvm->arch.dbf, d_loglevel, d_string "\n", \ d_args); \ } while (0) #define VCPU_EVENT(d_vcpu, d_loglevel, d_string, d_args...)\ do { \ debug_sprintf_event(d_vcpu->kvm->arch.dbf, d_loglevel, \ "%02d[%016lx-%016lx]: " d_string "\n", d_vcpu->vcpu_id, \ d_vcpu->arch.sie_block->gpsw.mask, d_vcpu->arch.sie_block->gpsw.addr,\ d_args); \ } while (0) static inline void kvm_s390_set_cpuflags(struct kvm_vcpu *vcpu, u32 flags) { atomic_or(flags, &vcpu->arch.sie_block->cpuflags); } static inline void kvm_s390_clear_cpuflags(struct kvm_vcpu *vcpu, u32 flags) { atomic_andnot(flags, &vcpu->arch.sie_block->cpuflags); } static inline bool kvm_s390_test_cpuflags(struct kvm_vcpu *vcpu, u32 flags) { return (atomic_read(&vcpu->arch.sie_block->cpuflags) & flags) == flags; } static inline int is_vcpu_stopped(struct kvm_vcpu *vcpu) { return kvm_s390_test_cpuflags(vcpu, CPUSTAT_STOPPED); } static inline int is_vcpu_idle(struct kvm_vcpu *vcpu) { return test_bit(vcpu->vcpu_id, vcpu->kvm->arch.idle_mask); } static inline int kvm_is_ucontrol(struct kvm *kvm) { #ifdef CONFIG_KVM_S390_UCONTROL if (kvm->arch.gmap) return 0; return 1; #else return 0; #endif } #define GUEST_PREFIX_SHIFT 13 static inline u32 kvm_s390_get_prefix(struct kvm_vcpu *vcpu) { return vcpu->arch.sie_block->prefix << GUEST_PREFIX_SHIFT; } static inline void kvm_s390_set_prefix(struct kvm_vcpu *vcpu, u32 prefix) { VCPU_EVENT(vcpu, 3, "set prefix of cpu %03u to 0x%x", vcpu->vcpu_id, prefix); vcpu->arch.sie_block->prefix = prefix >> GUEST_PREFIX_SHIFT; kvm_make_request(KVM_REQ_TLB_FLUSH, vcpu); kvm_make_request(KVM_REQ_MMU_RELOAD, vcpu); } static inline u64 kvm_s390_get_base_disp_s(struct kvm_vcpu *vcpu, u8 *ar) { u32 base2 = vcpu->arch.sie_block->ipb >> 28; u32 disp2 = ((vcpu->arch.sie_block->ipb & 0x0fff0000) >> 16); if (ar) *ar = base2; return (base2 ? vcpu->run->s.regs.gprs[base2] : 0) + disp2; } static inline void kvm_s390_get_base_disp_sse(struct kvm_vcpu *vcpu, u64 *address1, u64 *address2, u8 *ar_b1, u8 *ar_b2) { u32 base1 = (vcpu->arch.sie_block->ipb & 0xf0000000) >> 28; u32 disp1 = (vcpu->arch.sie_block->ipb & 0x0fff0000) >> 16; u32 base2 = (vcpu->arch.sie_block->ipb & 0xf000) >> 12; u32 disp2 = vcpu->arch.sie_block->ipb & 0x0fff; *address1 = (base1 ? vcpu->run->s.regs.gprs[base1] : 0) + disp1; *address2 = (base2 ? vcpu->run->s.regs.gprs[base2] : 0) + disp2; if (ar_b1) *ar_b1 = base1; if (ar_b2) *ar_b2 = base2; } static inline void kvm_s390_get_regs_rre(struct kvm_vcpu *vcpu, int *r1, int *r2) { if (r1) *r1 = (vcpu->arch.sie_block->ipb & 0x00f00000) >> 20; if (r2) *r2 = (vcpu->arch.sie_block->ipb & 0x000f0000) >> 16; } static inline u64 kvm_s390_get_base_disp_rsy(struct kvm_vcpu *vcpu, u8 *ar) { u32 base2 = vcpu->arch.sie_block->ipb >> 28; u32 disp2 = ((vcpu->arch.sie_block->ipb & 0x0fff0000) >> 16) + ((vcpu->arch.sie_block->ipb & 0xff00) << 4); /* The displacement is a 20bit _SIGNED_ value */ if (disp2 & 0x80000) disp2+=0xfff00000; if (ar) *ar = base2; return (base2 ? vcpu->run->s.regs.gprs[base2] : 0) + (long)(int)disp2; } static inline u64 kvm_s390_get_base_disp_rs(struct kvm_vcpu *vcpu, u8 *ar) { u32 base2 = vcpu->arch.sie_block->ipb >> 28; u32 disp2 = ((vcpu->arch.sie_block->ipb & 0x0fff0000) >> 16); if (ar) *ar = base2; return (base2 ? vcpu->run->s.regs.gprs[base2] : 0) + disp2; } /* Set the condition code in the guest program status word */ static inline void kvm_s390_set_psw_cc(struct kvm_vcpu *vcpu, unsigned long cc) { vcpu->arch.sie_block->gpsw.mask &= ~(3UL << 44); vcpu->arch.sie_block->gpsw.mask |= cc << 44; } /* test availability of facility in a kvm instance */ static inline int test_kvm_facility(struct kvm *kvm, unsigned long nr) { return __test_facility(nr, kvm->arch.model.fac_mask) && __test_facility(nr, kvm->arch.model.fac_list); } static inline int set_kvm_facility(u64 *fac_list, unsigned long nr) { unsigned char *ptr; if (nr >= MAX_FACILITY_BIT) return -EINVAL; ptr = (unsigned char *) fac_list + (nr >> 3); *ptr |= (0x80UL >> (nr & 7)); return 0; } static inline int test_kvm_cpu_feat(struct kvm *kvm, unsigned long nr) { WARN_ON_ONCE(nr >= KVM_S390_VM_CPU_FEAT_NR_BITS); return test_bit_inv(nr, kvm->arch.cpu_feat); } /* are cpu states controlled by user space */ static inline int kvm_s390_user_cpu_state_ctrl(struct kvm *kvm) { return kvm->arch.user_cpu_state_ctrl != 0; } /* implemented in pv.c */ int kvm_s390_pv_destroy_cpu(struct kvm_vcpu *vcpu, u16 *rc, u16 *rrc); int kvm_s390_pv_create_cpu(struct kvm_vcpu *vcpu, u16 *rc, u16 *rrc); int kvm_s390_pv_deinit_vm(struct kvm *kvm, u16 *rc, u16 *rrc); int kvm_s390_pv_init_vm(struct kvm *kvm, u16 *rc, u16 *rrc); int kvm_s390_pv_set_sec_parms(struct kvm *kvm, void *hdr, u64 length, u16 *rc, u16 *rrc); int kvm_s390_pv_unpack(struct kvm *kvm, unsigned long addr, unsigned long size, unsigned long tweak, u16 *rc, u16 *rrc); int kvm_s390_pv_set_cpu_state(struct kvm_vcpu *vcpu, u8 state); static inline u64 kvm_s390_pv_get_handle(struct kvm *kvm) { return kvm->arch.pv.handle; } static inline u64 kvm_s390_pv_cpu_get_handle(struct kvm_vcpu *vcpu) { return vcpu->arch.pv.handle; } static inline bool kvm_s390_pv_is_protected(struct kvm *kvm) { lockdep_assert_held(&kvm->lock); return !!kvm_s390_pv_get_handle(kvm); } static inline bool kvm_s390_pv_cpu_is_protected(struct kvm_vcpu *vcpu) { lockdep_assert_held(&vcpu->mutex); return !!kvm_s390_pv_cpu_get_handle(vcpu); } /* implemented in interrupt.c */ int kvm_s390_handle_wait(struct kvm_vcpu *vcpu); void kvm_s390_vcpu_wakeup(struct kvm_vcpu *vcpu); enum hrtimer_restart kvm_s390_idle_wakeup(struct hrtimer *timer); int __must_check kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu); void kvm_s390_clear_local_irqs(struct kvm_vcpu *vcpu); void kvm_s390_clear_float_irqs(struct kvm *kvm); int __must_check kvm_s390_inject_vm(struct kvm *kvm, struct kvm_s390_interrupt *s390int); int __must_check kvm_s390_inject_vcpu(struct kvm_vcpu *vcpu, struct kvm_s390_irq *irq); static inline int kvm_s390_inject_prog_irq(struct kvm_vcpu *vcpu, struct kvm_s390_pgm_info *pgm_info) { struct kvm_s390_irq irq = { .type = KVM_S390_PROGRAM_INT, .u.pgm = *pgm_info, }; return kvm_s390_inject_vcpu(vcpu, &irq); } static inline int kvm_s390_inject_program_int(struct kvm_vcpu *vcpu, u16 code) { struct kvm_s390_irq irq = { .type = KVM_S390_PROGRAM_INT, .u.pgm.code = code, }; return kvm_s390_inject_vcpu(vcpu, &irq); } struct kvm_s390_interrupt_info *kvm_s390_get_io_int(struct kvm *kvm, u64 isc_mask, u32 schid); int kvm_s390_reinject_io_int(struct kvm *kvm, struct kvm_s390_interrupt_info *inti); int kvm_s390_mask_adapter(struct kvm *kvm, unsigned int id, bool masked); /* implemented in intercept.c */ u8 kvm_s390_get_ilen(struct kvm_vcpu *vcpu); int kvm_handle_sie_intercept(struct kvm_vcpu *vcpu); static inline void kvm_s390_rewind_psw(struct kvm_vcpu *vcpu, int ilen) { struct kvm_s390_sie_block *sie_block = vcpu->arch.sie_block; sie_block->gpsw.addr = __rewind_psw(sie_block->gpsw, ilen); } static inline void kvm_s390_forward_psw(struct kvm_vcpu *vcpu, int ilen) { kvm_s390_rewind_psw(vcpu, -ilen); } static inline void kvm_s390_retry_instr(struct kvm_vcpu *vcpu) { /* don't inject PER events if we re-execute the instruction */ vcpu->arch.sie_block->icptstatus &= ~0x02; kvm_s390_rewind_psw(vcpu, kvm_s390_get_ilen(vcpu)); } int handle_sthyi(struct kvm_vcpu *vcpu); /* implemented in priv.c */ int is_valid_psw(psw_t *psw); int kvm_s390_handle_aa(struct kvm_vcpu *vcpu); int kvm_s390_handle_b2(struct kvm_vcpu *vcpu); int kvm_s390_handle_e3(struct kvm_vcpu *vcpu); int kvm_s390_handle_e5(struct kvm_vcpu *vcpu); int kvm_s390_handle_01(struct kvm_vcpu *vcpu); int kvm_s390_handle_b9(struct kvm_vcpu *vcpu); int kvm_s390_handle_lpsw(struct kvm_vcpu *vcpu); int kvm_s390_handle_stctl(struct kvm_vcpu *vcpu); int kvm_s390_handle_lctl(struct kvm_vcpu *vcpu); int kvm_s390_handle_eb(struct kvm_vcpu *vcpu); int kvm_s390_skey_check_enable(struct kvm_vcpu *vcpu); /* implemented in vsie.c */ int kvm_s390_handle_vsie(struct kvm_vcpu *vcpu); void kvm_s390_vsie_kick(struct kvm_vcpu *vcpu); void kvm_s390_vsie_gmap_notifier(struct gmap *gmap, unsigned long start, unsigned long end); void kvm_s390_vsie_init(struct kvm *kvm); void kvm_s390_vsie_destroy(struct kvm *kvm); /* implemented in sigp.c */ int kvm_s390_handle_sigp(struct kvm_vcpu *vcpu); int kvm_s390_handle_sigp_pei(struct kvm_vcpu *vcpu); /* implemented in kvm-s390.c */ void kvm_s390_set_tod_clock(struct kvm *kvm, const struct kvm_s390_vm_tod_clock *gtod); long kvm_arch_fault_in_page(struct kvm_vcpu *vcpu, gpa_t gpa, int writable); int kvm_s390_store_status_unloaded(struct kvm_vcpu *vcpu, unsigned long addr); int kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, unsigned long addr); int kvm_s390_vcpu_start(struct kvm_vcpu *vcpu); int kvm_s390_vcpu_stop(struct kvm_vcpu *vcpu); void kvm_s390_vcpu_block(struct kvm_vcpu *vcpu); void kvm_s390_vcpu_unblock(struct kvm_vcpu *vcpu); bool kvm_s390_vcpu_sie_inhibited(struct kvm_vcpu *vcpu); void exit_sie(struct kvm_vcpu *vcpu); void kvm_s390_sync_request(int req, struct kvm_vcpu *vcpu); int kvm_s390_vcpu_setup_cmma(struct kvm_vcpu *vcpu); void kvm_s390_vcpu_unsetup_cmma(struct kvm_vcpu *vcpu); void kvm_s390_set_cpu_timer(struct kvm_vcpu *vcpu, __u64 cputm); __u64 kvm_s390_get_cpu_timer(struct kvm_vcpu *vcpu); /* implemented in diag.c */ int kvm_s390_handle_diag(struct kvm_vcpu *vcpu); static inline void kvm_s390_vcpu_block_all(struct kvm *kvm) { int i; struct kvm_vcpu *vcpu; WARN_ON(!mutex_is_locked(&kvm->lock)); kvm_for_each_vcpu(i, vcpu, kvm) kvm_s390_vcpu_block(vcpu); } static inline void kvm_s390_vcpu_unblock_all(struct kvm *kvm) { int i; struct kvm_vcpu *vcpu; kvm_for_each_vcpu(i, vcpu, kvm) kvm_s390_vcpu_unblock(vcpu); } static inline u64 kvm_s390_get_tod_clock_fast(struct kvm *kvm) { u64 rc; preempt_disable(); rc = get_tod_clock_fast() + kvm->arch.epoch; preempt_enable(); return rc; } /** * kvm_s390_inject_prog_cond - conditionally inject a program check * @vcpu: virtual cpu * @rc: original return/error code * * This function is supposed to be used after regular guest access functions * failed, to conditionally inject a program check to a vcpu. The typical * pattern would look like * * rc = write_guest(vcpu, addr, data, len); * if (rc) * return kvm_s390_inject_prog_cond(vcpu, rc); * * A negative return code from guest access functions implies an internal error * like e.g. out of memory. In these cases no program check should be injected * to the guest. * A positive value implies that an exception happened while accessing a guest's * memory. In this case all data belonging to the corresponding program check * has been stored in vcpu->arch.pgm and can be injected with * kvm_s390_inject_prog_irq(). * * Returns: - the original @rc value if @rc was negative (internal error) * - zero if @rc was already zero * - zero or error code from injecting if @rc was positive * (program check injected to @vcpu) */ static inline int kvm_s390_inject_prog_cond(struct kvm_vcpu *vcpu, int rc) { if (rc <= 0) return rc; return kvm_s390_inject_prog_irq(vcpu, &vcpu->arch.pgm); } int s390int_to_s390irq(struct kvm_s390_interrupt *s390int, struct kvm_s390_irq *s390irq); /* implemented in interrupt.c */ int kvm_s390_vcpu_has_irq(struct kvm_vcpu *vcpu, int exclude_stop); int psw_extint_disabled(struct kvm_vcpu *vcpu); void kvm_s390_destroy_adapters(struct kvm *kvm); int kvm_s390_ext_call_pending(struct kvm_vcpu *vcpu); extern struct kvm_device_ops kvm_flic_ops; int kvm_s390_is_stop_irq_pending(struct kvm_vcpu *vcpu); void kvm_s390_clear_stop_irq(struct kvm_vcpu *vcpu); int kvm_s390_set_irq_state(struct kvm_vcpu *vcpu, void __user *buf, int len); int kvm_s390_get_irq_state(struct kvm_vcpu *vcpu, __u8 __user *buf, int len); void kvm_s390_gisa_init(struct kvm *kvm); void kvm_s390_gisa_clear(struct kvm *kvm); void kvm_s390_gisa_destroy(struct kvm *kvm); int kvm_s390_gib_init(u8 nisc); void kvm_s390_gib_destroy(void); /* implemented in guestdbg.c */ void kvm_s390_backup_guest_per_regs(struct kvm_vcpu *vcpu); void kvm_s390_restore_guest_per_regs(struct kvm_vcpu *vcpu); void kvm_s390_patch_guest_per_regs(struct kvm_vcpu *vcpu); int kvm_s390_import_bp_data(struct kvm_vcpu *vcpu, struct kvm_guest_debug *dbg); void kvm_s390_clear_bp_data(struct kvm_vcpu *vcpu); void kvm_s390_prepare_debug_exit(struct kvm_vcpu *vcpu); int kvm_s390_handle_per_ifetch_icpt(struct kvm_vcpu *vcpu); int kvm_s390_handle_per_event(struct kvm_vcpu *vcpu); /* support for Basic/Extended SCA handling */ static inline union ipte_control *kvm_s390_get_ipte_control(struct kvm *kvm) { struct bsca_block *sca = kvm->arch.sca; /* SCA version doesn't matter */ return &sca->ipte_control; } static inline int kvm_s390_use_sca_entries(void) { /* * Without SIGP interpretation, only SRS interpretation (if available) * might use the entries. By not setting the entries and keeping them * invalid, hardware will not access them but intercept. */ return sclp.has_sigpif; } void kvm_s390_reinject_machine_check(struct kvm_vcpu *vcpu, struct mcck_volatile_info *mcck_info); /** * kvm_s390_vcpu_crypto_reset_all * * Reset the crypto attributes for each vcpu. This can be done while the vcpus * are running as each vcpu will be removed from SIE before resetting the crypt * attributes and restored to SIE afterward. * * Note: The kvm->lock must be held while calling this function * * @kvm: the KVM guest */ void kvm_s390_vcpu_crypto_reset_all(struct kvm *kvm); #endif
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