| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* |
| * |
| * Copyright IBM Corp. 2008 |
| * |
| * Authors: Hollis Blanchard <hollisb@us.ibm.com> |
| */ |
| |
| #ifndef __POWERPC_KVM_PPC_H__ |
| #define __POWERPC_KVM_PPC_H__ |
| |
| /* This file exists just so we can dereference kvm_vcpu, avoiding nested header |
| * dependencies. */ |
| |
| #include <linux/mutex.h> |
| #include <linux/timer.h> |
| #include <linux/types.h> |
| #include <linux/kvm_types.h> |
| #include <linux/kvm_host.h> |
| #include <linux/bug.h> |
| #ifdef CONFIG_PPC_BOOK3S |
| #include <asm/kvm_book3s.h> |
| #else |
| #include <asm/kvm_booke.h> |
| #endif |
| #ifdef CONFIG_KVM_BOOK3S_64_HANDLER |
| #include <asm/paca.h> |
| #include <asm/xive.h> |
| #include <asm/cpu_has_feature.h> |
| #endif |
| |
| /* |
| * KVMPPC_INST_SW_BREAKPOINT is debug Instruction |
| * for supporting software breakpoint. |
| */ |
| #define KVMPPC_INST_SW_BREAKPOINT 0x00dddd00 |
| |
| enum emulation_result { |
| EMULATE_DONE, /* no further processing */ |
| EMULATE_DO_MMIO, /* kvm_run filled with MMIO request */ |
| EMULATE_FAIL, /* can't emulate this instruction */ |
| EMULATE_AGAIN, /* something went wrong. go again */ |
| EMULATE_EXIT_USER, /* emulation requires exit to user-space */ |
| }; |
| |
| enum instruction_fetch_type { |
| INST_GENERIC, |
| INST_SC, /* system call */ |
| }; |
| |
| enum xlate_instdata { |
| XLATE_INST, /* translate instruction address */ |
| XLATE_DATA /* translate data address */ |
| }; |
| |
| enum xlate_readwrite { |
| XLATE_READ, /* check for read permissions */ |
| XLATE_WRITE /* check for write permissions */ |
| }; |
| |
| extern int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu); |
| extern int __kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu); |
| extern void kvmppc_handler_highmem(void); |
| |
| extern void kvmppc_dump_vcpu(struct kvm_vcpu *vcpu); |
| extern int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu, |
| unsigned int rt, unsigned int bytes, |
| int is_default_endian); |
| extern int kvmppc_handle_loads(struct kvm_run *run, struct kvm_vcpu *vcpu, |
| unsigned int rt, unsigned int bytes, |
| int is_default_endian); |
| extern int kvmppc_handle_vsx_load(struct kvm_run *run, struct kvm_vcpu *vcpu, |
| unsigned int rt, unsigned int bytes, |
| int is_default_endian, int mmio_sign_extend); |
| extern int kvmppc_handle_vmx_load(struct kvm_run *run, struct kvm_vcpu *vcpu, |
| unsigned int rt, unsigned int bytes, int is_default_endian); |
| extern int kvmppc_handle_vmx_store(struct kvm_run *run, struct kvm_vcpu *vcpu, |
| unsigned int rs, unsigned int bytes, int is_default_endian); |
| extern int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu, |
| u64 val, unsigned int bytes, |
| int is_default_endian); |
| extern int kvmppc_handle_vsx_store(struct kvm_run *run, struct kvm_vcpu *vcpu, |
| int rs, unsigned int bytes, |
| int is_default_endian); |
| |
| extern int kvmppc_load_last_inst(struct kvm_vcpu *vcpu, |
| enum instruction_fetch_type type, u32 *inst); |
| |
| extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, |
| bool data); |
| extern int kvmppc_st(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, |
| bool data); |
| extern int kvmppc_emulate_instruction(struct kvm_run *run, |
| struct kvm_vcpu *vcpu); |
| extern int kvmppc_emulate_loadstore(struct kvm_vcpu *vcpu); |
| extern int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu); |
| extern void kvmppc_emulate_dec(struct kvm_vcpu *vcpu); |
| extern u32 kvmppc_get_dec(struct kvm_vcpu *vcpu, u64 tb); |
| extern void kvmppc_decrementer_func(struct kvm_vcpu *vcpu); |
| extern int kvmppc_sanity_check(struct kvm_vcpu *vcpu); |
| extern int kvmppc_subarch_vcpu_init(struct kvm_vcpu *vcpu); |
| extern void kvmppc_subarch_vcpu_uninit(struct kvm_vcpu *vcpu); |
| |
| /* Core-specific hooks */ |
| |
| extern void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr, |
| unsigned int gtlb_idx); |
| extern void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode); |
| extern void kvmppc_mmu_switch_pid(struct kvm_vcpu *vcpu, u32 pid); |
| extern void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu); |
| extern int kvmppc_mmu_init(struct kvm_vcpu *vcpu); |
| extern int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr); |
| extern int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr); |
| extern gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int gtlb_index, |
| gva_t eaddr); |
| extern void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu); |
| extern void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu); |
| extern int kvmppc_xlate(struct kvm_vcpu *vcpu, ulong eaddr, |
| enum xlate_instdata xlid, enum xlate_readwrite xlrw, |
| struct kvmppc_pte *pte); |
| |
| extern struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, |
| unsigned int id); |
| extern void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu); |
| extern int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu); |
| extern int kvmppc_core_check_processor_compat(void); |
| extern int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu, |
| struct kvm_translation *tr); |
| |
| extern void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu); |
| extern void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu); |
| |
| extern int kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu); |
| extern int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu); |
| extern void kvmppc_core_queue_machine_check(struct kvm_vcpu *vcpu, ulong flags); |
| extern void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong flags); |
| extern void kvmppc_core_queue_fpunavail(struct kvm_vcpu *vcpu); |
| extern void kvmppc_core_queue_vec_unavail(struct kvm_vcpu *vcpu); |
| extern void kvmppc_core_queue_vsx_unavail(struct kvm_vcpu *vcpu); |
| extern void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu); |
| extern void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu); |
| extern void kvmppc_core_queue_external(struct kvm_vcpu *vcpu, |
| struct kvm_interrupt *irq); |
| extern void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu); |
| extern void kvmppc_core_queue_dtlb_miss(struct kvm_vcpu *vcpu, ulong dear_flags, |
| ulong esr_flags); |
| extern void kvmppc_core_queue_data_storage(struct kvm_vcpu *vcpu, |
| ulong dear_flags, |
| ulong esr_flags); |
| extern void kvmppc_core_queue_itlb_miss(struct kvm_vcpu *vcpu); |
| extern void kvmppc_core_queue_inst_storage(struct kvm_vcpu *vcpu, |
| ulong esr_flags); |
| extern void kvmppc_core_flush_tlb(struct kvm_vcpu *vcpu); |
| extern int kvmppc_core_check_requests(struct kvm_vcpu *vcpu); |
| |
| extern int kvmppc_booke_init(void); |
| extern void kvmppc_booke_exit(void); |
| |
| extern void kvmppc_core_destroy_mmu(struct kvm_vcpu *vcpu); |
| extern int kvmppc_kvm_pv(struct kvm_vcpu *vcpu); |
| extern void kvmppc_map_magic(struct kvm_vcpu *vcpu); |
| |
| extern int kvmppc_allocate_hpt(struct kvm_hpt_info *info, u32 order); |
| extern void kvmppc_set_hpt(struct kvm *kvm, struct kvm_hpt_info *info); |
| extern long kvmppc_alloc_reset_hpt(struct kvm *kvm, int order); |
| extern void kvmppc_free_hpt(struct kvm_hpt_info *info); |
| extern void kvmppc_rmap_reset(struct kvm *kvm); |
| extern long kvmppc_prepare_vrma(struct kvm *kvm, |
| struct kvm_userspace_memory_region *mem); |
| extern void kvmppc_map_vrma(struct kvm_vcpu *vcpu, |
| struct kvm_memory_slot *memslot, unsigned long porder); |
| extern int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu); |
| extern long kvm_spapr_tce_attach_iommu_group(struct kvm *kvm, int tablefd, |
| struct iommu_group *grp); |
| extern void kvm_spapr_tce_release_iommu_group(struct kvm *kvm, |
| struct iommu_group *grp); |
| extern int kvmppc_switch_mmu_to_hpt(struct kvm *kvm); |
| extern int kvmppc_switch_mmu_to_radix(struct kvm *kvm); |
| extern void kvmppc_setup_partition_table(struct kvm *kvm); |
| |
| extern long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm, |
| struct kvm_create_spapr_tce_64 *args); |
| extern struct kvmppc_spapr_tce_table *kvmppc_find_table( |
| struct kvm *kvm, unsigned long liobn); |
| #define kvmppc_ioba_validate(stt, ioba, npages) \ |
| (iommu_tce_check_ioba((stt)->page_shift, (stt)->offset, \ |
| (stt)->size, (ioba), (npages)) ? \ |
| H_PARAMETER : H_SUCCESS) |
| extern long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn, |
| unsigned long ioba, unsigned long tce); |
| extern long kvmppc_h_put_tce_indirect(struct kvm_vcpu *vcpu, |
| unsigned long liobn, unsigned long ioba, |
| unsigned long tce_list, unsigned long npages); |
| extern long kvmppc_h_stuff_tce(struct kvm_vcpu *vcpu, |
| unsigned long liobn, unsigned long ioba, |
| unsigned long tce_value, unsigned long npages); |
| extern long kvmppc_h_get_tce(struct kvm_vcpu *vcpu, unsigned long liobn, |
| unsigned long ioba); |
| extern struct page *kvm_alloc_hpt_cma(unsigned long nr_pages); |
| extern void kvm_free_hpt_cma(struct page *page, unsigned long nr_pages); |
| extern int kvmppc_core_init_vm(struct kvm *kvm); |
| extern void kvmppc_core_destroy_vm(struct kvm *kvm); |
| extern void kvmppc_core_free_memslot(struct kvm *kvm, |
| struct kvm_memory_slot *free, |
| struct kvm_memory_slot *dont); |
| extern int kvmppc_core_create_memslot(struct kvm *kvm, |
| struct kvm_memory_slot *slot, |
| unsigned long npages); |
| extern int kvmppc_core_prepare_memory_region(struct kvm *kvm, |
| struct kvm_memory_slot *memslot, |
| const struct kvm_userspace_memory_region *mem); |
| extern void kvmppc_core_commit_memory_region(struct kvm *kvm, |
| const struct kvm_userspace_memory_region *mem, |
| const struct kvm_memory_slot *old, |
| const struct kvm_memory_slot *new, |
| enum kvm_mr_change change); |
| extern int kvm_vm_ioctl_get_smmu_info(struct kvm *kvm, |
| struct kvm_ppc_smmu_info *info); |
| extern void kvmppc_core_flush_memslot(struct kvm *kvm, |
| struct kvm_memory_slot *memslot); |
| |
| extern int kvmppc_bookehv_init(void); |
| extern void kvmppc_bookehv_exit(void); |
| |
| extern int kvmppc_prepare_to_enter(struct kvm_vcpu *vcpu); |
| |
| extern int kvm_vm_ioctl_get_htab_fd(struct kvm *kvm, struct kvm_get_htab_fd *); |
| extern long kvm_vm_ioctl_resize_hpt_prepare(struct kvm *kvm, |
| struct kvm_ppc_resize_hpt *rhpt); |
| extern long kvm_vm_ioctl_resize_hpt_commit(struct kvm *kvm, |
| struct kvm_ppc_resize_hpt *rhpt); |
| |
| int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq); |
| |
| extern int kvm_vm_ioctl_rtas_define_token(struct kvm *kvm, void __user *argp); |
| extern int kvmppc_rtas_hcall(struct kvm_vcpu *vcpu); |
| extern void kvmppc_rtas_tokens_free(struct kvm *kvm); |
| |
| extern int kvmppc_xics_set_xive(struct kvm *kvm, u32 irq, u32 server, |
| u32 priority); |
| extern int kvmppc_xics_get_xive(struct kvm *kvm, u32 irq, u32 *server, |
| u32 *priority); |
| extern int kvmppc_xics_int_on(struct kvm *kvm, u32 irq); |
| extern int kvmppc_xics_int_off(struct kvm *kvm, u32 irq); |
| |
| void kvmppc_core_dequeue_debug(struct kvm_vcpu *vcpu); |
| void kvmppc_core_queue_debug(struct kvm_vcpu *vcpu); |
| |
| union kvmppc_one_reg { |
| u32 wval; |
| u64 dval; |
| vector128 vval; |
| u64 vsxval[2]; |
| u32 vsx32val[4]; |
| u16 vsx16val[8]; |
| u8 vsx8val[16]; |
| struct { |
| u64 addr; |
| u64 length; |
| } vpaval; |
| u64 xive_timaval[2]; |
| }; |
| |
| struct kvmppc_ops { |
| struct module *owner; |
| int (*get_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); |
| int (*set_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); |
| int (*get_one_reg)(struct kvm_vcpu *vcpu, u64 id, |
| union kvmppc_one_reg *val); |
| int (*set_one_reg)(struct kvm_vcpu *vcpu, u64 id, |
| union kvmppc_one_reg *val); |
| void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu); |
| void (*vcpu_put)(struct kvm_vcpu *vcpu); |
| void (*inject_interrupt)(struct kvm_vcpu *vcpu, int vec, u64 srr1_flags); |
| void (*set_msr)(struct kvm_vcpu *vcpu, u64 msr); |
| int (*vcpu_run)(struct kvm_run *run, struct kvm_vcpu *vcpu); |
| struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned int id); |
| void (*vcpu_free)(struct kvm_vcpu *vcpu); |
| int (*check_requests)(struct kvm_vcpu *vcpu); |
| int (*get_dirty_log)(struct kvm *kvm, struct kvm_dirty_log *log); |
| void (*flush_memslot)(struct kvm *kvm, struct kvm_memory_slot *memslot); |
| int (*prepare_memory_region)(struct kvm *kvm, |
| struct kvm_memory_slot *memslot, |
| const struct kvm_userspace_memory_region *mem); |
| void (*commit_memory_region)(struct kvm *kvm, |
| const struct kvm_userspace_memory_region *mem, |
| const struct kvm_memory_slot *old, |
| const struct kvm_memory_slot *new, |
| enum kvm_mr_change change); |
| int (*unmap_hva_range)(struct kvm *kvm, unsigned long start, |
| unsigned long end); |
| int (*age_hva)(struct kvm *kvm, unsigned long start, unsigned long end); |
| int (*test_age_hva)(struct kvm *kvm, unsigned long hva); |
| void (*set_spte_hva)(struct kvm *kvm, unsigned long hva, pte_t pte); |
| void (*mmu_destroy)(struct kvm_vcpu *vcpu); |
| void (*free_memslot)(struct kvm_memory_slot *free, |
| struct kvm_memory_slot *dont); |
| int (*create_memslot)(struct kvm_memory_slot *slot, |
| unsigned long npages); |
| int (*init_vm)(struct kvm *kvm); |
| void (*destroy_vm)(struct kvm *kvm); |
| int (*get_smmu_info)(struct kvm *kvm, struct kvm_ppc_smmu_info *info); |
| int (*emulate_op)(struct kvm_run *run, struct kvm_vcpu *vcpu, |
| unsigned int inst, int *advance); |
| int (*emulate_mtspr)(struct kvm_vcpu *vcpu, int sprn, ulong spr_val); |
| int (*emulate_mfspr)(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val); |
| void (*fast_vcpu_kick)(struct kvm_vcpu *vcpu); |
| long (*arch_vm_ioctl)(struct file *filp, unsigned int ioctl, |
| unsigned long arg); |
| int (*hcall_implemented)(unsigned long hcall); |
| int (*irq_bypass_add_producer)(struct irq_bypass_consumer *, |
| struct irq_bypass_producer *); |
| void (*irq_bypass_del_producer)(struct irq_bypass_consumer *, |
| struct irq_bypass_producer *); |
| int (*configure_mmu)(struct kvm *kvm, struct kvm_ppc_mmuv3_cfg *cfg); |
| int (*get_rmmu_info)(struct kvm *kvm, struct kvm_ppc_rmmu_info *info); |
| int (*set_smt_mode)(struct kvm *kvm, unsigned long mode, |
| unsigned long flags); |
| void (*giveup_ext)(struct kvm_vcpu *vcpu, ulong msr); |
| int (*enable_nested)(struct kvm *kvm); |
| int (*load_from_eaddr)(struct kvm_vcpu *vcpu, ulong *eaddr, void *ptr, |
| int size); |
| int (*store_to_eaddr)(struct kvm_vcpu *vcpu, ulong *eaddr, void *ptr, |
| int size); |
| int (*svm_off)(struct kvm *kvm); |
| }; |
| |
| extern struct kvmppc_ops *kvmppc_hv_ops; |
| extern struct kvmppc_ops *kvmppc_pr_ops; |
| |
| static inline int kvmppc_get_last_inst(struct kvm_vcpu *vcpu, |
| enum instruction_fetch_type type, u32 *inst) |
| { |
| int ret = EMULATE_DONE; |
| u32 fetched_inst; |
| |
| /* Load the instruction manually if it failed to do so in the |
| * exit path */ |
| if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED) |
| ret = kvmppc_load_last_inst(vcpu, type, &vcpu->arch.last_inst); |
| |
| /* Write fetch_failed unswapped if the fetch failed */ |
| if (ret == EMULATE_DONE) |
| fetched_inst = kvmppc_need_byteswap(vcpu) ? |
| swab32(vcpu->arch.last_inst) : |
| vcpu->arch.last_inst; |
| else |
| fetched_inst = vcpu->arch.last_inst; |
| |
| *inst = fetched_inst; |
| return ret; |
| } |
| |
| static inline bool is_kvmppc_hv_enabled(struct kvm *kvm) |
| { |
| return kvm->arch.kvm_ops == kvmppc_hv_ops; |
| } |
| |
| extern int kvmppc_hwrng_present(void); |
| |
| /* |
| * Cuts out inst bits with ordering according to spec. |
| * That means the leftmost bit is zero. All given bits are included. |
| */ |
| static inline u32 kvmppc_get_field(u64 inst, int msb, int lsb) |
| { |
| u32 r; |
| u32 mask; |
| |
| BUG_ON(msb > lsb); |
| |
| mask = (1 << (lsb - msb + 1)) - 1; |
| r = (inst >> (63 - lsb)) & mask; |
| |
| return r; |
| } |
| |
| /* |
| * Replaces inst bits with ordering according to spec. |
| */ |
| static inline u32 kvmppc_set_field(u64 inst, int msb, int lsb, int value) |
| { |
| u32 r; |
| u32 mask; |
| |
| BUG_ON(msb > lsb); |
| |
| mask = ((1 << (lsb - msb + 1)) - 1) << (63 - lsb); |
| r = (inst & ~mask) | ((value << (63 - lsb)) & mask); |
| |
| return r; |
| } |
| |
| #define one_reg_size(id) \ |
| (1ul << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT)) |
| |
| #define get_reg_val(id, reg) ({ \ |
| union kvmppc_one_reg __u; \ |
| switch (one_reg_size(id)) { \ |
| case 4: __u.wval = (reg); break; \ |
| case 8: __u.dval = (reg); break; \ |
| default: BUG(); \ |
| } \ |
| __u; \ |
| }) |
| |
| |
| #define set_reg_val(id, val) ({ \ |
| u64 __v; \ |
| switch (one_reg_size(id)) { \ |
| case 4: __v = (val).wval; break; \ |
| case 8: __v = (val).dval; break; \ |
| default: BUG(); \ |
| } \ |
| __v; \ |
| }) |
| |
| int kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); |
| int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); |
| |
| int kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); |
| int kvmppc_set_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs); |
| |
| int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg); |
| int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg); |
| int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *); |
| int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *); |
| |
| void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 pid); |
| |
| struct openpic; |
| |
| #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE |
| extern void kvm_cma_reserve(void) __init; |
| static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr) |
| { |
| paca_ptrs[cpu]->kvm_hstate.xics_phys = (void __iomem *)addr; |
| } |
| |
| static inline void kvmppc_set_xive_tima(int cpu, |
| unsigned long phys_addr, |
| void __iomem *virt_addr) |
| { |
| paca_ptrs[cpu]->kvm_hstate.xive_tima_phys = (void __iomem *)phys_addr; |
| paca_ptrs[cpu]->kvm_hstate.xive_tima_virt = virt_addr; |
| } |
| |
| static inline u32 kvmppc_get_xics_latch(void) |
| { |
| u32 xirr; |
| |
| xirr = get_paca()->kvm_hstate.saved_xirr; |
| get_paca()->kvm_hstate.saved_xirr = 0; |
| return xirr; |
| } |
| |
| /* |
| * To avoid the need to unnecessarily exit fully to the host kernel, an IPI to |
| * a CPU thread that's running/napping inside of a guest is by default regarded |
| * as a request to wake the CPU (if needed) and continue execution within the |
| * guest, potentially to process new state like externally-generated |
| * interrupts or IPIs sent from within the guest itself (e.g. H_PROD/H_IPI). |
| * |
| * To force an exit to the host kernel, kvmppc_set_host_ipi() must be called |
| * prior to issuing the IPI to set the corresponding 'host_ipi' flag in the |
| * target CPU's PACA. To avoid unnecessary exits to the host, this flag should |
| * be immediately cleared via kvmppc_clear_host_ipi() by the IPI handler on |
| * the receiving side prior to processing the IPI work. |
| * |
| * NOTE: |
| * |
| * We currently issue an smp_mb() at the beginning of kvmppc_set_host_ipi(). |
| * This is to guard against sequences such as the following: |
| * |
| * CPU |
| * X: smp_muxed_ipi_set_message(): |
| * X: smp_mb() |
| * X: message[RESCHEDULE] = 1 |
| * X: doorbell_global_ipi(42): |
| * X: kvmppc_set_host_ipi(42) |
| * X: ppc_msgsnd_sync()/smp_mb() |
| * X: ppc_msgsnd() -> 42 |
| * 42: doorbell_exception(): // from CPU X |
| * 42: ppc_msgsync() |
| * 105: smp_muxed_ipi_set_message(): |
| * 105: smb_mb() |
| * // STORE DEFERRED DUE TO RE-ORDERING |
| * --105: message[CALL_FUNCTION] = 1 |
| * | 105: doorbell_global_ipi(42): |
| * | 105: kvmppc_set_host_ipi(42) |
| * | 42: kvmppc_clear_host_ipi(42) |
| * | 42: smp_ipi_demux_relaxed() |
| * | 42: // returns to executing guest |
| * | // RE-ORDERED STORE COMPLETES |
| * ->105: message[CALL_FUNCTION] = 1 |
| * 105: ppc_msgsnd_sync()/smp_mb() |
| * 105: ppc_msgsnd() -> 42 |
| * 42: local_paca->kvm_hstate.host_ipi == 0 // IPI ignored |
| * 105: // hangs waiting on 42 to process messages/call_single_queue |
| * |
| * We also issue an smp_mb() at the end of kvmppc_clear_host_ipi(). This is |
| * to guard against sequences such as the following (as well as to create |
| * a read-side pairing with the barrier in kvmppc_set_host_ipi()): |
| * |
| * CPU |
| * X: smp_muxed_ipi_set_message(): |
| * X: smp_mb() |
| * X: message[RESCHEDULE] = 1 |
| * X: doorbell_global_ipi(42): |
| * X: kvmppc_set_host_ipi(42) |
| * X: ppc_msgsnd_sync()/smp_mb() |
| * X: ppc_msgsnd() -> 42 |
| * 42: doorbell_exception(): // from CPU X |
| * 42: ppc_msgsync() |
| * // STORE DEFERRED DUE TO RE-ORDERING |
| * -- 42: kvmppc_clear_host_ipi(42) |
| * | 42: smp_ipi_demux_relaxed() |
| * | 105: smp_muxed_ipi_set_message(): |
| * | 105: smb_mb() |
| * | 105: message[CALL_FUNCTION] = 1 |
| * | 105: doorbell_global_ipi(42): |
| * | 105: kvmppc_set_host_ipi(42) |
| * | // RE-ORDERED STORE COMPLETES |
| * -> 42: kvmppc_clear_host_ipi(42) |
| * 42: // returns to executing guest |
| * 105: ppc_msgsnd_sync()/smp_mb() |
| * 105: ppc_msgsnd() -> 42 |
| * 42: local_paca->kvm_hstate.host_ipi == 0 // IPI ignored |
| * 105: // hangs waiting on 42 to process messages/call_single_queue |
| */ |
| static inline void kvmppc_set_host_ipi(int cpu) |
| { |
| /* |
| * order stores of IPI messages vs. setting of host_ipi flag |
| * |
| * pairs with the barrier in kvmppc_clear_host_ipi() |
| */ |
| smp_mb(); |
| paca_ptrs[cpu]->kvm_hstate.host_ipi = 1; |
| } |
| |
| static inline void kvmppc_clear_host_ipi(int cpu) |
| { |
| paca_ptrs[cpu]->kvm_hstate.host_ipi = 0; |
| /* |
| * order clearing of host_ipi flag vs. processing of IPI messages |
| * |
| * pairs with the barrier in kvmppc_set_host_ipi() |
| */ |
| smp_mb(); |
| } |
| |
| static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu) |
| { |
| vcpu->kvm->arch.kvm_ops->fast_vcpu_kick(vcpu); |
| } |
| |
| extern void kvm_hv_vm_activated(void); |
| extern void kvm_hv_vm_deactivated(void); |
| extern bool kvm_hv_mode_active(void); |
| |
| extern void kvmppc_check_need_tlb_flush(struct kvm *kvm, int pcpu, |
| struct kvm_nested_guest *nested); |
| |
| #else |
| static inline void __init kvm_cma_reserve(void) |
| {} |
| |
| static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr) |
| {} |
| |
| static inline void kvmppc_set_xive_tima(int cpu, |
| unsigned long phys_addr, |
| void __iomem *virt_addr) |
| {} |
| |
| static inline u32 kvmppc_get_xics_latch(void) |
| { |
| return 0; |
| } |
| |
| static inline void kvmppc_set_host_ipi(int cpu) |
| {} |
| |
| static inline void kvmppc_clear_host_ipi(int cpu) |
| {} |
| |
| static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu) |
| { |
| kvm_vcpu_kick(vcpu); |
| } |
| |
| static inline bool kvm_hv_mode_active(void) { return false; } |
| |
| #endif |
| |
| #ifdef CONFIG_KVM_XICS |
| static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu) |
| { |
| return vcpu->arch.irq_type == KVMPPC_IRQ_XICS; |
| } |
| |
| static inline struct kvmppc_passthru_irqmap *kvmppc_get_passthru_irqmap( |
| struct kvm *kvm) |
| { |
| if (kvm && kvm_irq_bypass) |
| return kvm->arch.pimap; |
| return NULL; |
| } |
| |
| extern void kvmppc_alloc_host_rm_ops(void); |
| extern void kvmppc_free_host_rm_ops(void); |
| extern void kvmppc_free_pimap(struct kvm *kvm); |
| extern int kvmppc_xics_rm_complete(struct kvm_vcpu *vcpu, u32 hcall); |
| extern void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu); |
| extern int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd); |
| extern u64 kvmppc_xics_get_icp(struct kvm_vcpu *vcpu); |
| extern int kvmppc_xics_set_icp(struct kvm_vcpu *vcpu, u64 icpval); |
| extern int kvmppc_xics_connect_vcpu(struct kvm_device *dev, |
| struct kvm_vcpu *vcpu, u32 cpu); |
| extern void kvmppc_xics_ipi_action(void); |
| extern void kvmppc_xics_set_mapped(struct kvm *kvm, unsigned long guest_irq, |
| unsigned long host_irq); |
| extern void kvmppc_xics_clr_mapped(struct kvm *kvm, unsigned long guest_irq, |
| unsigned long host_irq); |
| extern long kvmppc_deliver_irq_passthru(struct kvm_vcpu *vcpu, __be32 xirr, |
| struct kvmppc_irq_map *irq_map, |
| struct kvmppc_passthru_irqmap *pimap, |
| bool *again); |
| |
| extern int kvmppc_xics_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, |
| int level, bool line_status); |
| |
| extern int h_ipi_redirect; |
| #else |
| static inline struct kvmppc_passthru_irqmap *kvmppc_get_passthru_irqmap( |
| struct kvm *kvm) |
| { return NULL; } |
| static inline void kvmppc_alloc_host_rm_ops(void) {}; |
| static inline void kvmppc_free_host_rm_ops(void) {}; |
| static inline void kvmppc_free_pimap(struct kvm *kvm) {}; |
| static inline int kvmppc_xics_rm_complete(struct kvm_vcpu *vcpu, u32 hcall) |
| { return 0; } |
| static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu) |
| { return 0; } |
| static inline void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu) { } |
| static inline int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd) |
| { return 0; } |
| #endif |
| |
| #ifdef CONFIG_KVM_XIVE |
| /* |
| * Below the first "xive" is the "eXternal Interrupt Virtualization Engine" |
| * ie. P9 new interrupt controller, while the second "xive" is the legacy |
| * "eXternal Interrupt Vector Entry" which is the configuration of an |
| * interrupt on the "xics" interrupt controller on P8 and earlier. Those |
| * two function consume or produce a legacy "XIVE" state from the |
| * new "XIVE" interrupt controller. |
| */ |
| extern int kvmppc_xive_set_xive(struct kvm *kvm, u32 irq, u32 server, |
| u32 priority); |
| extern int kvmppc_xive_get_xive(struct kvm *kvm, u32 irq, u32 *server, |
| u32 *priority); |
| extern int kvmppc_xive_int_on(struct kvm *kvm, u32 irq); |
| extern int kvmppc_xive_int_off(struct kvm *kvm, u32 irq); |
| extern void kvmppc_xive_init_module(void); |
| extern void kvmppc_xive_exit_module(void); |
| |
| extern int kvmppc_xive_connect_vcpu(struct kvm_device *dev, |
| struct kvm_vcpu *vcpu, u32 cpu); |
| extern void kvmppc_xive_cleanup_vcpu(struct kvm_vcpu *vcpu); |
| extern int kvmppc_xive_set_mapped(struct kvm *kvm, unsigned long guest_irq, |
| struct irq_desc *host_desc); |
| extern int kvmppc_xive_clr_mapped(struct kvm *kvm, unsigned long guest_irq, |
| struct irq_desc *host_desc); |
| extern u64 kvmppc_xive_get_icp(struct kvm_vcpu *vcpu); |
| extern int kvmppc_xive_set_icp(struct kvm_vcpu *vcpu, u64 icpval); |
| |
| extern int kvmppc_xive_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, |
| int level, bool line_status); |
| extern void kvmppc_xive_push_vcpu(struct kvm_vcpu *vcpu); |
| |
| static inline int kvmppc_xive_enabled(struct kvm_vcpu *vcpu) |
| { |
| return vcpu->arch.irq_type == KVMPPC_IRQ_XIVE; |
| } |
| |
| extern int kvmppc_xive_native_connect_vcpu(struct kvm_device *dev, |
| struct kvm_vcpu *vcpu, u32 cpu); |
| extern void kvmppc_xive_native_cleanup_vcpu(struct kvm_vcpu *vcpu); |
| extern void kvmppc_xive_native_init_module(void); |
| extern void kvmppc_xive_native_exit_module(void); |
| extern int kvmppc_xive_native_get_vp(struct kvm_vcpu *vcpu, |
| union kvmppc_one_reg *val); |
| extern int kvmppc_xive_native_set_vp(struct kvm_vcpu *vcpu, |
| union kvmppc_one_reg *val); |
| extern bool kvmppc_xive_native_supported(void); |
| |
| #else |
| static inline int kvmppc_xive_set_xive(struct kvm *kvm, u32 irq, u32 server, |
| u32 priority) { return -1; } |
| static inline int kvmppc_xive_get_xive(struct kvm *kvm, u32 irq, u32 *server, |
| u32 *priority) { return -1; } |
| static inline int kvmppc_xive_int_on(struct kvm *kvm, u32 irq) { return -1; } |
| static inline int kvmppc_xive_int_off(struct kvm *kvm, u32 irq) { return -1; } |
| static inline void kvmppc_xive_init_module(void) { } |
| static inline void kvmppc_xive_exit_module(void) { } |
| |
| static inline int kvmppc_xive_connect_vcpu(struct kvm_device *dev, |
| struct kvm_vcpu *vcpu, u32 cpu) { return -EBUSY; } |
| static inline void kvmppc_xive_cleanup_vcpu(struct kvm_vcpu *vcpu) { } |
| static inline int kvmppc_xive_set_mapped(struct kvm *kvm, unsigned long guest_irq, |
| struct irq_desc *host_desc) { return -ENODEV; } |
| static inline int kvmppc_xive_clr_mapped(struct kvm *kvm, unsigned long guest_irq, |
| struct irq_desc *host_desc) { return -ENODEV; } |
| static inline u64 kvmppc_xive_get_icp(struct kvm_vcpu *vcpu) { return 0; } |
| static inline int kvmppc_xive_set_icp(struct kvm_vcpu *vcpu, u64 icpval) { return -ENOENT; } |
| |
| static inline int kvmppc_xive_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, |
| int level, bool line_status) { return -ENODEV; } |
| static inline void kvmppc_xive_push_vcpu(struct kvm_vcpu *vcpu) { } |
| |
| static inline int kvmppc_xive_enabled(struct kvm_vcpu *vcpu) |
| { return 0; } |
| static inline int kvmppc_xive_native_connect_vcpu(struct kvm_device *dev, |
| struct kvm_vcpu *vcpu, u32 cpu) { return -EBUSY; } |
| static inline void kvmppc_xive_native_cleanup_vcpu(struct kvm_vcpu *vcpu) { } |
| static inline void kvmppc_xive_native_init_module(void) { } |
| static inline void kvmppc_xive_native_exit_module(void) { } |
| static inline int kvmppc_xive_native_get_vp(struct kvm_vcpu *vcpu, |
| union kvmppc_one_reg *val) |
| { return 0; } |
| static inline int kvmppc_xive_native_set_vp(struct kvm_vcpu *vcpu, |
| union kvmppc_one_reg *val) |
| { return -ENOENT; } |
| |
| #endif /* CONFIG_KVM_XIVE */ |
| |
| #if defined(CONFIG_PPC_POWERNV) && defined(CONFIG_KVM_BOOK3S_64_HANDLER) |
| static inline bool xics_on_xive(void) |
| { |
| return xive_enabled() && cpu_has_feature(CPU_FTR_HVMODE); |
| } |
| #else |
| static inline bool xics_on_xive(void) |
| { |
| return false; |
| } |
| #endif |
| |
| /* |
| * Prototypes for functions called only from assembler code. |
| * Having prototypes reduces sparse errors. |
| */ |
| long kvmppc_rm_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn, |
| unsigned long ioba, unsigned long tce); |
| long kvmppc_rm_h_put_tce_indirect(struct kvm_vcpu *vcpu, |
| unsigned long liobn, unsigned long ioba, |
| unsigned long tce_list, unsigned long npages); |
| long kvmppc_rm_h_stuff_tce(struct kvm_vcpu *vcpu, |
| unsigned long liobn, unsigned long ioba, |
| unsigned long tce_value, unsigned long npages); |
| long int kvmppc_rm_h_confer(struct kvm_vcpu *vcpu, int target, |
| unsigned int yield_count); |
| long kvmppc_h_random(struct kvm_vcpu *vcpu); |
| void kvmhv_commence_exit(int trap); |
| void kvmppc_realmode_machine_check(struct kvm_vcpu *vcpu); |
| void kvmppc_subcore_enter_guest(void); |
| void kvmppc_subcore_exit_guest(void); |
| long kvmppc_realmode_hmi_handler(void); |
| long kvmppc_h_enter(struct kvm_vcpu *vcpu, unsigned long flags, |
| long pte_index, unsigned long pteh, unsigned long ptel); |
| long kvmppc_h_remove(struct kvm_vcpu *vcpu, unsigned long flags, |
| unsigned long pte_index, unsigned long avpn); |
| long kvmppc_h_bulk_remove(struct kvm_vcpu *vcpu); |
| long kvmppc_h_protect(struct kvm_vcpu *vcpu, unsigned long flags, |
| unsigned long pte_index, unsigned long avpn, |
| unsigned long va); |
| long kvmppc_h_read(struct kvm_vcpu *vcpu, unsigned long flags, |
| unsigned long pte_index); |
| long kvmppc_h_clear_ref(struct kvm_vcpu *vcpu, unsigned long flags, |
| unsigned long pte_index); |
| long kvmppc_h_clear_mod(struct kvm_vcpu *vcpu, unsigned long flags, |
| unsigned long pte_index); |
| long kvmppc_rm_h_page_init(struct kvm_vcpu *vcpu, unsigned long flags, |
| unsigned long dest, unsigned long src); |
| long kvmppc_hpte_hv_fault(struct kvm_vcpu *vcpu, unsigned long addr, |
| unsigned long slb_v, unsigned int status, bool data); |
| unsigned long kvmppc_rm_h_xirr(struct kvm_vcpu *vcpu); |
| unsigned long kvmppc_rm_h_xirr_x(struct kvm_vcpu *vcpu); |
| unsigned long kvmppc_rm_h_ipoll(struct kvm_vcpu *vcpu, unsigned long server); |
| int kvmppc_rm_h_ipi(struct kvm_vcpu *vcpu, unsigned long server, |
| unsigned long mfrr); |
| int kvmppc_rm_h_cppr(struct kvm_vcpu *vcpu, unsigned long cppr); |
| int kvmppc_rm_h_eoi(struct kvm_vcpu *vcpu, unsigned long xirr); |
| void kvmppc_guest_entry_inject_int(struct kvm_vcpu *vcpu); |
| |
| /* |
| * Host-side operations we want to set up while running in real |
| * mode in the guest operating on the xics. |
| * Currently only VCPU wakeup is supported. |
| */ |
| |
| union kvmppc_rm_state { |
| unsigned long raw; |
| struct { |
| u32 in_host; |
| u32 rm_action; |
| }; |
| }; |
| |
| struct kvmppc_host_rm_core { |
| union kvmppc_rm_state rm_state; |
| void *rm_data; |
| char pad[112]; |
| }; |
| |
| struct kvmppc_host_rm_ops { |
| struct kvmppc_host_rm_core *rm_core; |
| void (*vcpu_kick)(struct kvm_vcpu *vcpu); |
| }; |
| |
| extern struct kvmppc_host_rm_ops *kvmppc_host_rm_ops_hv; |
| |
| static inline unsigned long kvmppc_get_epr(struct kvm_vcpu *vcpu) |
| { |
| #ifdef CONFIG_KVM_BOOKE_HV |
| return mfspr(SPRN_GEPR); |
| #elif defined(CONFIG_BOOKE) |
| return vcpu->arch.epr; |
| #else |
| return 0; |
| #endif |
| } |
| |
| static inline void kvmppc_set_epr(struct kvm_vcpu *vcpu, u32 epr) |
| { |
| #ifdef CONFIG_KVM_BOOKE_HV |
| mtspr(SPRN_GEPR, epr); |
| #elif defined(CONFIG_BOOKE) |
| vcpu->arch.epr = epr; |
| #endif |
| } |
| |
| #ifdef CONFIG_KVM_MPIC |
| |
| void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu); |
| int kvmppc_mpic_connect_vcpu(struct kvm_device *dev, struct kvm_vcpu *vcpu, |
| u32 cpu); |
| void kvmppc_mpic_disconnect_vcpu(struct openpic *opp, struct kvm_vcpu *vcpu); |
| |
| #else |
| |
| static inline void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu) |
| { |
| } |
| |
| static inline int kvmppc_mpic_connect_vcpu(struct kvm_device *dev, |
| struct kvm_vcpu *vcpu, u32 cpu) |
| { |
| return -EINVAL; |
| } |
| |
| static inline void kvmppc_mpic_disconnect_vcpu(struct openpic *opp, |
| struct kvm_vcpu *vcpu) |
| { |
| } |
| |
| #endif /* CONFIG_KVM_MPIC */ |
| |
| int kvm_vcpu_ioctl_config_tlb(struct kvm_vcpu *vcpu, |
| struct kvm_config_tlb *cfg); |
| int kvm_vcpu_ioctl_dirty_tlb(struct kvm_vcpu *vcpu, |
| struct kvm_dirty_tlb *cfg); |
| |
| long kvmppc_alloc_lpid(void); |
| void kvmppc_claim_lpid(long lpid); |
| void kvmppc_free_lpid(long lpid); |
| void kvmppc_init_lpid(unsigned long nr_lpids); |
| |
| static inline void kvmppc_mmu_flush_icache(kvm_pfn_t pfn) |
| { |
| struct page *page; |
| /* |
| * We can only access pages that the kernel maps |
| * as memory. Bail out for unmapped ones. |
| */ |
| if (!pfn_valid(pfn)) |
| return; |
| |
| /* Clear i-cache for new pages */ |
| page = pfn_to_page(pfn); |
| if (!test_bit(PG_arch_1, &page->flags)) { |
| flush_dcache_icache_page(page); |
| set_bit(PG_arch_1, &page->flags); |
| } |
| } |
| |
| /* |
| * Shared struct helpers. The shared struct can be little or big endian, |
| * depending on the guest endianness. So expose helpers to all of them. |
| */ |
| static inline bool kvmppc_shared_big_endian(struct kvm_vcpu *vcpu) |
| { |
| #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE) |
| /* Only Book3S_64 PR supports bi-endian for now */ |
| return vcpu->arch.shared_big_endian; |
| #elif defined(CONFIG_PPC_BOOK3S_64) && defined(__LITTLE_ENDIAN__) |
| /* Book3s_64 HV on little endian is always little endian */ |
| return false; |
| #else |
| return true; |
| #endif |
| } |
| |
| #define SPRNG_WRAPPER_GET(reg, bookehv_spr) \ |
| static inline ulong kvmppc_get_##reg(struct kvm_vcpu *vcpu) \ |
| { \ |
| return mfspr(bookehv_spr); \ |
| } \ |
| |
| #define SPRNG_WRAPPER_SET(reg, bookehv_spr) \ |
| static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, ulong val) \ |
| { \ |
| mtspr(bookehv_spr, val); \ |
| } \ |
| |
| #define SHARED_WRAPPER_GET(reg, size) \ |
| static inline u##size kvmppc_get_##reg(struct kvm_vcpu *vcpu) \ |
| { \ |
| if (kvmppc_shared_big_endian(vcpu)) \ |
| return be##size##_to_cpu(vcpu->arch.shared->reg); \ |
| else \ |
| return le##size##_to_cpu(vcpu->arch.shared->reg); \ |
| } \ |
| |
| #define SHARED_WRAPPER_SET(reg, size) \ |
| static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, u##size val) \ |
| { \ |
| if (kvmppc_shared_big_endian(vcpu)) \ |
| vcpu->arch.shared->reg = cpu_to_be##size(val); \ |
| else \ |
| vcpu->arch.shared->reg = cpu_to_le##size(val); \ |
| } \ |
| |
| #define SHARED_WRAPPER(reg, size) \ |
| SHARED_WRAPPER_GET(reg, size) \ |
| SHARED_WRAPPER_SET(reg, size) \ |
| |
| #define SPRNG_WRAPPER(reg, bookehv_spr) \ |
| SPRNG_WRAPPER_GET(reg, bookehv_spr) \ |
| SPRNG_WRAPPER_SET(reg, bookehv_spr) \ |
| |
| #ifdef CONFIG_KVM_BOOKE_HV |
| |
| #define SHARED_SPRNG_WRAPPER(reg, size, bookehv_spr) \ |
| SPRNG_WRAPPER(reg, bookehv_spr) \ |
| |
| #else |
| |
| #define SHARED_SPRNG_WRAPPER(reg, size, bookehv_spr) \ |
| SHARED_WRAPPER(reg, size) \ |
| |
| #endif |
| |
| SHARED_WRAPPER(critical, 64) |
| SHARED_SPRNG_WRAPPER(sprg0, 64, SPRN_GSPRG0) |
| SHARED_SPRNG_WRAPPER(sprg1, 64, SPRN_GSPRG1) |
| SHARED_SPRNG_WRAPPER(sprg2, 64, SPRN_GSPRG2) |
| SHARED_SPRNG_WRAPPER(sprg3, 64, SPRN_GSPRG3) |
| SHARED_SPRNG_WRAPPER(srr0, 64, SPRN_GSRR0) |
| SHARED_SPRNG_WRAPPER(srr1, 64, SPRN_GSRR1) |
| SHARED_SPRNG_WRAPPER(dar, 64, SPRN_GDEAR) |
| SHARED_SPRNG_WRAPPER(esr, 64, SPRN_GESR) |
| SHARED_WRAPPER_GET(msr, 64) |
| static inline void kvmppc_set_msr_fast(struct kvm_vcpu *vcpu, u64 val) |
| { |
| if (kvmppc_shared_big_endian(vcpu)) |
| vcpu->arch.shared->msr = cpu_to_be64(val); |
| else |
| vcpu->arch.shared->msr = cpu_to_le64(val); |
| } |
| SHARED_WRAPPER(dsisr, 32) |
| SHARED_WRAPPER(int_pending, 32) |
| SHARED_WRAPPER(sprg4, 64) |
| SHARED_WRAPPER(sprg5, 64) |
| SHARED_WRAPPER(sprg6, 64) |
| SHARED_WRAPPER(sprg7, 64) |
| |
| static inline u32 kvmppc_get_sr(struct kvm_vcpu *vcpu, int nr) |
| { |
| if (kvmppc_shared_big_endian(vcpu)) |
| return be32_to_cpu(vcpu->arch.shared->sr[nr]); |
| else |
| return le32_to_cpu(vcpu->arch.shared->sr[nr]); |
| } |
| |
| static inline void kvmppc_set_sr(struct kvm_vcpu *vcpu, int nr, u32 val) |
| { |
| if (kvmppc_shared_big_endian(vcpu)) |
| vcpu->arch.shared->sr[nr] = cpu_to_be32(val); |
| else |
| vcpu->arch.shared->sr[nr] = cpu_to_le32(val); |
| } |
| |
| /* |
| * Please call after prepare_to_enter. This function puts the lazy ee and irq |
| * disabled tracking state back to normal mode, without actually enabling |
| * interrupts. |
| */ |
| static inline void kvmppc_fix_ee_before_entry(void) |
| { |
| trace_hardirqs_on(); |
| |
| #ifdef CONFIG_PPC64 |
| /* |
| * To avoid races, the caller must have gone directly from having |
| * interrupts fully-enabled to hard-disabled. |
| */ |
| WARN_ON(local_paca->irq_happened != PACA_IRQ_HARD_DIS); |
| |
| /* Only need to enable IRQs by hard enabling them after this */ |
| local_paca->irq_happened = 0; |
| irq_soft_mask_set(IRQS_ENABLED); |
| #endif |
| } |
| |
| static inline ulong kvmppc_get_ea_indexed(struct kvm_vcpu *vcpu, int ra, int rb) |
| { |
| ulong ea; |
| ulong msr_64bit = 0; |
| |
| ea = kvmppc_get_gpr(vcpu, rb); |
| if (ra) |
| ea += kvmppc_get_gpr(vcpu, ra); |
| |
| #if defined(CONFIG_PPC_BOOK3E_64) |
| msr_64bit = MSR_CM; |
| #elif defined(CONFIG_PPC_BOOK3S_64) |
| msr_64bit = MSR_SF; |
| #endif |
| |
| if (!(kvmppc_get_msr(vcpu) & msr_64bit)) |
| ea = (uint32_t)ea; |
| |
| return ea; |
| } |
| |
| extern void xics_wake_cpu(int cpu); |
| |
| #endif /* __POWERPC_KVM_PPC_H__ */ |