diff options
Diffstat (limited to 'arch/powerpc/include/asm/kvm_book3s.h')
| -rw-r--r-- | arch/powerpc/include/asm/kvm_book3s.h | 271 |
1 files changed, 248 insertions, 23 deletions
diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h index 506e4df2d730..3e1e2a698c9e 100644 --- a/arch/powerpc/include/asm/kvm_book3s.h +++ b/arch/powerpc/include/asm/kvm_book3s.h @@ -12,6 +12,7 @@ #include <linux/types.h> #include <linux/kvm_host.h> #include <asm/kvm_book3s_asm.h> +#include <asm/guest-state-buffer.h> struct kvmppc_bat { u64 raw; @@ -78,7 +79,7 @@ struct kvmppc_vcore { struct kvm_vcpu *runnable_threads[MAX_SMT_THREADS]; struct list_head preempt_list; spinlock_t lock; - struct swait_queue_head wq; + struct rcuwait wait; spinlock_t stoltb_lock; /* protects stolen_tb and preempt_tb */ u64 stolen_tb; u64 preempt_tb; @@ -155,12 +156,11 @@ extern void kvmppc_mmu_unmap_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte) extern int kvmppc_mmu_map_segment(struct kvm_vcpu *vcpu, ulong eaddr); extern void kvmppc_mmu_flush_segment(struct kvm_vcpu *vcpu, ulong eaddr, ulong seg_size); extern void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu); -extern int kvmppc_book3s_hv_page_fault(struct kvm_run *run, - struct kvm_vcpu *vcpu, unsigned long addr, - unsigned long status); +extern int kvmppc_book3s_hv_page_fault(struct kvm_vcpu *vcpu, + unsigned long addr, unsigned long status); extern long kvmppc_hv_find_lock_hpte(struct kvm *kvm, gva_t eaddr, unsigned long slb_v, unsigned long valid); -extern int kvmppc_hv_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu, +extern int kvmppc_hv_emulate_mmio(struct kvm_vcpu *vcpu, unsigned long gpa, gva_t ea, int is_store); extern void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu *vcpu, struct hpte_cache *pte); @@ -174,8 +174,7 @@ extern void kvmppc_mmu_hpte_sysexit(void); extern int kvmppc_mmu_hv_init(void); extern int kvmppc_book3s_hcall_implemented(struct kvm *kvm, unsigned long hc); -extern int kvmppc_book3s_radix_page_fault(struct kvm_run *run, - struct kvm_vcpu *vcpu, +extern int kvmppc_book3s_radix_page_fault(struct kvm_vcpu *vcpu, unsigned long ea, unsigned long dsisr); extern unsigned long __kvmhv_copy_tofrom_guest_radix(int lpid, int pid, gva_t eaddr, void *to, void *from, @@ -193,14 +192,14 @@ extern int kvmppc_mmu_radix_translate_table(struct kvm_vcpu *vcpu, gva_t eaddr, extern int kvmppc_mmu_radix_xlate(struct kvm_vcpu *vcpu, gva_t eaddr, struct kvmppc_pte *gpte, bool data, bool iswrite); extern void kvmppc_radix_tlbie_page(struct kvm *kvm, unsigned long addr, - unsigned int pshift, unsigned int lpid); + unsigned int pshift, u64 lpid); extern void kvmppc_unmap_pte(struct kvm *kvm, pte_t *pte, unsigned long gpa, unsigned int shift, const struct kvm_memory_slot *memslot, - unsigned int lpid); -extern bool kvmppc_hv_handle_set_rc(struct kvm *kvm, pgd_t *pgtable, + u64 lpid); +extern bool kvmppc_hv_handle_set_rc(struct kvm *kvm, bool nested, bool writing, unsigned long gpa, - unsigned int lpid); + u64 lpid); extern int kvmppc_book3s_instantiate_page(struct kvm_vcpu *vcpu, unsigned long gpa, struct kvm_memory_slot *memslot, @@ -209,15 +208,15 @@ extern int kvmppc_book3s_instantiate_page(struct kvm_vcpu *vcpu, extern int kvmppc_init_vm_radix(struct kvm *kvm); extern void kvmppc_free_radix(struct kvm *kvm); extern void kvmppc_free_pgtable_radix(struct kvm *kvm, pgd_t *pgd, - unsigned int lpid); + u64 lpid); extern int kvmppc_radix_init(void); extern void kvmppc_radix_exit(void); -extern int kvm_unmap_radix(struct kvm *kvm, struct kvm_memory_slot *memslot, - unsigned long gfn); -extern int kvm_age_radix(struct kvm *kvm, struct kvm_memory_slot *memslot, - unsigned long gfn); -extern int kvm_test_age_radix(struct kvm *kvm, struct kvm_memory_slot *memslot, - unsigned long gfn); +extern void kvm_unmap_radix(struct kvm *kvm, struct kvm_memory_slot *memslot, + unsigned long gfn); +extern bool kvm_age_radix(struct kvm *kvm, struct kvm_memory_slot *memslot, + unsigned long gfn); +extern bool kvm_test_age_radix(struct kvm *kvm, struct kvm_memory_slot *memslot, + unsigned long gfn); extern long kvmppc_hv_get_dirty_log_radix(struct kvm *kvm, struct kvm_memory_slot *memslot, unsigned long *map); extern void kvmppc_radix_flush_memslot(struct kvm *kvm, @@ -234,7 +233,7 @@ extern void kvmppc_trigger_fac_interrupt(struct kvm_vcpu *vcpu, ulong fac); extern void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat, bool upper, u32 val); extern void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr); -extern int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu); +extern int kvmppc_emulate_paired_single(struct kvm_vcpu *vcpu); extern kvm_pfn_t kvmppc_gpa_to_pfn(struct kvm_vcpu *vcpu, gpa_t gpa, bool writing, bool *writable); extern void kvmppc_add_revmap_chain(struct kvm *kvm, struct revmap_entry *rev, @@ -260,6 +259,8 @@ extern long kvmppc_hv_get_dirty_log_hpt(struct kvm *kvm, extern void kvmppc_harvest_vpa_dirty(struct kvmppc_vpa *vpa, struct kvm_memory_slot *memslot, unsigned long *map); +extern unsigned long kvmppc_filter_lpcr_hv(struct kvm *kvm, + unsigned long lpcr); extern void kvmppc_update_lpcr(struct kvm *kvm, unsigned long lpcr, unsigned long mask); extern void kvmppc_set_fscr(struct kvm_vcpu *vcpu, u64 fscr); @@ -279,6 +280,10 @@ extern int kvmppc_hcall_impl_hv_realmode(unsigned long cmd); extern void kvmppc_copy_to_svcpu(struct kvm_vcpu *vcpu); extern void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu); +long kvmppc_read_intr(void); +void kvmppc_set_msr_hv(struct kvm_vcpu *vcpu, u64 msr); +void kvmppc_inject_interrupt_hv(struct kvm_vcpu *vcpu, int vec, u64 srr1_flags); + #ifdef CONFIG_PPC_TRANSACTIONAL_MEM void kvmppc_save_tm_pr(struct kvm_vcpu *vcpu); void kvmppc_restore_tm_pr(struct kvm_vcpu *vcpu); @@ -291,24 +296,92 @@ static inline void kvmppc_save_tm_sprs(struct kvm_vcpu *vcpu) {} static inline void kvmppc_restore_tm_sprs(struct kvm_vcpu *vcpu) {} #endif +extern unsigned long nested_capabilities; long kvmhv_nested_init(void); void kvmhv_nested_exit(void); void kvmhv_vm_nested_init(struct kvm *kvm); long kvmhv_set_partition_table(struct kvm_vcpu *vcpu); long kvmhv_copy_tofrom_guest_nested(struct kvm_vcpu *vcpu); -void kvmhv_set_ptbl_entry(unsigned int lpid, u64 dw0, u64 dw1); +void kvmhv_flush_lpid(u64 lpid); +void kvmhv_set_ptbl_entry(u64 lpid, u64 dw0, u64 dw1); void kvmhv_release_all_nested(struct kvm *kvm); long kvmhv_enter_nested_guest(struct kvm_vcpu *vcpu); long kvmhv_do_nested_tlbie(struct kvm_vcpu *vcpu); -int kvmhv_run_single_vcpu(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu, +long do_h_rpt_invalidate_pat(struct kvm_vcpu *vcpu, unsigned long lpid, + unsigned long type, unsigned long pg_sizes, + unsigned long start, unsigned long end); +int kvmhv_run_single_vcpu(struct kvm_vcpu *vcpu, u64 time_limit, unsigned long lpcr); void kvmhv_save_hv_regs(struct kvm_vcpu *vcpu, struct hv_guest_state *hr); void kvmhv_restore_hv_return_state(struct kvm_vcpu *vcpu, struct hv_guest_state *hr); -long int kvmhv_nested_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu); +long int kvmhv_nested_page_fault(struct kvm_vcpu *vcpu); void kvmppc_giveup_fac(struct kvm_vcpu *vcpu, ulong fac); + +#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE + +extern struct static_key_false __kvmhv_is_nestedv2; + +static inline bool kvmhv_is_nestedv2(void) +{ + return static_branch_unlikely(&__kvmhv_is_nestedv2); +} + +static inline bool kvmhv_is_nestedv1(void) +{ + return !static_branch_likely(&__kvmhv_is_nestedv2); +} + +#else + +static inline bool kvmhv_is_nestedv2(void) +{ + return false; +} + +static inline bool kvmhv_is_nestedv1(void) +{ + return false; +} + +#endif + +int __kvmhv_nestedv2_reload_ptregs(struct kvm_vcpu *vcpu, struct pt_regs *regs); +int __kvmhv_nestedv2_mark_dirty_ptregs(struct kvm_vcpu *vcpu, struct pt_regs *regs); +int __kvmhv_nestedv2_mark_dirty(struct kvm_vcpu *vcpu, u16 iden); +int __kvmhv_nestedv2_cached_reload(struct kvm_vcpu *vcpu, u16 iden); + +static inline int kvmhv_nestedv2_reload_ptregs(struct kvm_vcpu *vcpu, + struct pt_regs *regs) +{ + if (kvmhv_is_nestedv2()) + return __kvmhv_nestedv2_reload_ptregs(vcpu, regs); + return 0; +} +static inline int kvmhv_nestedv2_mark_dirty_ptregs(struct kvm_vcpu *vcpu, + struct pt_regs *regs) +{ + if (kvmhv_is_nestedv2()) + return __kvmhv_nestedv2_mark_dirty_ptregs(vcpu, regs); + return 0; +} + +static inline int kvmhv_nestedv2_mark_dirty(struct kvm_vcpu *vcpu, u16 iden) +{ + if (kvmhv_is_nestedv2()) + return __kvmhv_nestedv2_mark_dirty(vcpu, iden); + return 0; +} + +static inline int kvmhv_nestedv2_cached_reload(struct kvm_vcpu *vcpu, u16 iden) +{ + if (kvmhv_is_nestedv2()) + return __kvmhv_nestedv2_cached_reload(vcpu, iden); + return 0; +} + extern int kvm_irq_bypass; static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu) @@ -328,60 +401,72 @@ static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu) static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val) { vcpu->arch.regs.gpr[num] = val; + kvmhv_nestedv2_mark_dirty(vcpu, KVMPPC_GSID_GPR(num)); } static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num) { + WARN_ON(kvmhv_nestedv2_cached_reload(vcpu, KVMPPC_GSID_GPR(num)) < 0); return vcpu->arch.regs.gpr[num]; } static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val) { vcpu->arch.regs.ccr = val; + kvmhv_nestedv2_mark_dirty(vcpu, KVMPPC_GSID_CR); } static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu) { + WARN_ON(kvmhv_nestedv2_cached_reload(vcpu, KVMPPC_GSID_CR) < 0); return vcpu->arch.regs.ccr; } static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, ulong val) { vcpu->arch.regs.xer = val; + kvmhv_nestedv2_mark_dirty(vcpu, KVMPPC_GSID_XER); } static inline ulong kvmppc_get_xer(struct kvm_vcpu *vcpu) { + WARN_ON(kvmhv_nestedv2_cached_reload(vcpu, KVMPPC_GSID_XER) < 0); return vcpu->arch.regs.xer; } static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val) { vcpu->arch.regs.ctr = val; + kvmhv_nestedv2_mark_dirty(vcpu, KVMPPC_GSID_CTR); } static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu) { + WARN_ON(kvmhv_nestedv2_cached_reload(vcpu, KVMPPC_GSID_CTR) < 0); return vcpu->arch.regs.ctr; } static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val) { vcpu->arch.regs.link = val; + kvmhv_nestedv2_mark_dirty(vcpu, KVMPPC_GSID_LR); } static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu) { + WARN_ON(kvmhv_nestedv2_cached_reload(vcpu, KVMPPC_GSID_LR) < 0); return vcpu->arch.regs.link; } static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val) { vcpu->arch.regs.nip = val; + kvmhv_nestedv2_mark_dirty(vcpu, KVMPPC_GSID_NIA); } static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu) { + WARN_ON(kvmhv_nestedv2_cached_reload(vcpu, KVMPPC_GSID_NIA) < 0); return vcpu->arch.regs.nip; } @@ -396,6 +481,146 @@ static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu) return vcpu->arch.fault_dar; } +static inline u64 kvmppc_get_fpr(struct kvm_vcpu *vcpu, int i) +{ + WARN_ON(kvmhv_nestedv2_cached_reload(vcpu, KVMPPC_GSID_VSRS(i)) < 0); + return vcpu->arch.fp.fpr[i][TS_FPROFFSET]; +} + +static inline void kvmppc_set_fpr(struct kvm_vcpu *vcpu, int i, u64 val) +{ + vcpu->arch.fp.fpr[i][TS_FPROFFSET] = val; + kvmhv_nestedv2_mark_dirty(vcpu, KVMPPC_GSID_VSRS(i)); +} + +static inline u64 kvmppc_get_fpscr(struct kvm_vcpu *vcpu) +{ + WARN_ON(kvmhv_nestedv2_cached_reload(vcpu, KVMPPC_GSID_FPSCR) < 0); + return vcpu->arch.fp.fpscr; +} + +static inline void kvmppc_set_fpscr(struct kvm_vcpu *vcpu, u64 val) +{ + vcpu->arch.fp.fpscr = val; + kvmhv_nestedv2_mark_dirty(vcpu, KVMPPC_GSID_FPSCR); +} + + +static inline u64 kvmppc_get_vsx_fpr(struct kvm_vcpu *vcpu, int i, int j) +{ + WARN_ON(kvmhv_nestedv2_cached_reload(vcpu, KVMPPC_GSID_VSRS(i)) < 0); + return vcpu->arch.fp.fpr[i][j]; +} + +static inline void kvmppc_set_vsx_fpr(struct kvm_vcpu *vcpu, int i, int j, + u64 val) +{ + vcpu->arch.fp.fpr[i][j] = val; + kvmhv_nestedv2_mark_dirty(vcpu, KVMPPC_GSID_VSRS(i)); +} + +#ifdef CONFIG_ALTIVEC +static inline void kvmppc_get_vsx_vr(struct kvm_vcpu *vcpu, int i, vector128 *v) +{ + WARN_ON(kvmhv_nestedv2_cached_reload(vcpu, KVMPPC_GSID_VSRS(32 + i)) < 0); + *v = vcpu->arch.vr.vr[i]; +} + +static inline void kvmppc_set_vsx_vr(struct kvm_vcpu *vcpu, int i, + vector128 *val) +{ + vcpu->arch.vr.vr[i] = *val; + kvmhv_nestedv2_mark_dirty(vcpu, KVMPPC_GSID_VSRS(32 + i)); +} + +static inline u32 kvmppc_get_vscr(struct kvm_vcpu *vcpu) +{ + WARN_ON(kvmhv_nestedv2_cached_reload(vcpu, KVMPPC_GSID_VSCR) < 0); + return vcpu->arch.vr.vscr.u[3]; +} + +static inline void kvmppc_set_vscr(struct kvm_vcpu *vcpu, u32 val) +{ + vcpu->arch.vr.vscr.u[3] = val; + kvmhv_nestedv2_mark_dirty(vcpu, KVMPPC_GSID_VSCR); +} +#endif + +#define KVMPPC_BOOK3S_VCPU_ACCESSOR_SET(reg, size, iden) \ +static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, u##size val) \ +{ \ + \ + vcpu->arch.reg = val; \ + kvmhv_nestedv2_mark_dirty(vcpu, iden); \ +} + +#define KVMPPC_BOOK3S_VCPU_ACCESSOR_GET(reg, size, iden) \ +static inline u##size kvmppc_get_##reg(struct kvm_vcpu *vcpu) \ +{ \ + WARN_ON(kvmhv_nestedv2_cached_reload(vcpu, iden) < 0); \ + return vcpu->arch.reg; \ +} + +#define KVMPPC_BOOK3S_VCPU_ACCESSOR(reg, size, iden) \ + KVMPPC_BOOK3S_VCPU_ACCESSOR_SET(reg, size, iden) \ + KVMPPC_BOOK3S_VCPU_ACCESSOR_GET(reg, size, iden) \ + +KVMPPC_BOOK3S_VCPU_ACCESSOR(pid, 32, KVMPPC_GSID_PIDR) +KVMPPC_BOOK3S_VCPU_ACCESSOR(tar, 64, KVMPPC_GSID_TAR) +KVMPPC_BOOK3S_VCPU_ACCESSOR(ebbhr, 64, KVMPPC_GSID_EBBHR) +KVMPPC_BOOK3S_VCPU_ACCESSOR(ebbrr, 64, KVMPPC_GSID_EBBRR) +KVMPPC_BOOK3S_VCPU_ACCESSOR(bescr, 64, KVMPPC_GSID_BESCR) +KVMPPC_BOOK3S_VCPU_ACCESSOR(ic, 64, KVMPPC_GSID_IC) +KVMPPC_BOOK3S_VCPU_ACCESSOR(vrsave, 64, KVMPPC_GSID_VRSAVE) + + +#define KVMPPC_BOOK3S_VCORE_ACCESSOR_SET(reg, size, iden) \ +static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, u##size val) \ +{ \ + vcpu->arch.vcore->reg = val; \ + kvmhv_nestedv2_mark_dirty(vcpu, iden); \ +} + +#define KVMPPC_BOOK3S_VCORE_ACCESSOR_GET(reg, size, iden) \ +static inline u##size kvmppc_get_##reg(struct kvm_vcpu *vcpu) \ +{ \ + WARN_ON(kvmhv_nestedv2_cached_reload(vcpu, iden) < 0); \ + return vcpu->arch.vcore->reg; \ +} + +#define KVMPPC_BOOK3S_VCORE_ACCESSOR(reg, size, iden) \ + KVMPPC_BOOK3S_VCORE_ACCESSOR_SET(reg, size, iden) \ + KVMPPC_BOOK3S_VCORE_ACCESSOR_GET(reg, size, iden) \ + + +KVMPPC_BOOK3S_VCORE_ACCESSOR(vtb, 64, KVMPPC_GSID_VTB) +KVMPPC_BOOK3S_VCORE_ACCESSOR_GET(arch_compat, 32, KVMPPC_GSID_LOGICAL_PVR) +KVMPPC_BOOK3S_VCORE_ACCESSOR_GET(lpcr, 64, KVMPPC_GSID_LPCR) +KVMPPC_BOOK3S_VCORE_ACCESSOR_SET(tb_offset, 64, KVMPPC_GSID_TB_OFFSET) + +static inline u64 kvmppc_get_tb_offset(struct kvm_vcpu *vcpu) +{ + return vcpu->arch.vcore->tb_offset; +} + +static inline u64 kvmppc_get_dec_expires(struct kvm_vcpu *vcpu) +{ + WARN_ON(kvmhv_nestedv2_cached_reload(vcpu, KVMPPC_GSID_DEC_EXPIRY_TB) < 0); + return vcpu->arch.dec_expires; +} + +static inline void kvmppc_set_dec_expires(struct kvm_vcpu *vcpu, u64 val) +{ + vcpu->arch.dec_expires = val; + kvmhv_nestedv2_mark_dirty(vcpu, KVMPPC_GSID_DEC_EXPIRY_TB); +} + +/* Expiry time of vcpu DEC relative to host TB */ +static inline u64 kvmppc_dec_expires_host_tb(struct kvm_vcpu *vcpu) +{ + return kvmppc_get_dec_expires(vcpu) - kvmppc_get_tb_offset(vcpu); +} + static inline bool is_kvmppc_resume_guest(int r) { return (r == RESUME_GUEST || r == RESUME_GUEST_NV); @@ -424,7 +649,7 @@ extern int kvmppc_h_logical_ci_store(struct kvm_vcpu *vcpu); #define SPLIT_HACK_OFFS 0xfb000000 /* - * This packs a VCPU ID from the [0..KVM_MAX_VCPU_ID) space down to the + * This packs a VCPU ID from the [0..KVM_MAX_VCPU_IDS) space down to the * [0..KVM_MAX_VCPUS) space, using knowledge of the guest's core stride * (but not its actual threading mode, which is not available) to avoid * collisions. |