diff options
Diffstat (limited to 'arch/powerpc/include/asm/kvm_book3s.h')
| -rw-r--r-- | arch/powerpc/include/asm/kvm_book3s.h | 217 |
1 files changed, 140 insertions, 77 deletions
diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h index d62e703f121..f52f6569452 100644 --- a/arch/powerpc/include/asm/kvm_book3s.h +++ b/arch/powerpc/include/asm/kvm_book3s.h @@ -24,20 +24,6 @@ #include <linux/kvm_host.h> #include <asm/kvm_book3s_asm.h> -struct kvmppc_slb { - u64 esid; - u64 vsid; - u64 orige; - u64 origv; - bool valid : 1; - bool Ks : 1; - bool Kp : 1; - bool nx : 1; - bool large : 1; /* PTEs are 16MB */ - bool tb : 1; /* 1TB segment */ - bool class : 1; -}; - struct kvmppc_bat { u64 raw; u32 bepi; @@ -67,11 +53,24 @@ struct kvmppc_sid_map { #define VSID_POOL_SIZE (SID_CONTEXTS * 16) #endif +struct hpte_cache { + struct hlist_node list_pte; + struct hlist_node list_pte_long; + struct hlist_node list_vpte; + struct hlist_node list_vpte_long; +#ifdef CONFIG_PPC_BOOK3S_64 + struct hlist_node list_vpte_64k; +#endif + struct rcu_head rcu_head; + u64 host_vpn; + u64 pfn; + ulong slot; + struct kvmppc_pte pte; + int pagesize; +}; + struct kvmppc_vcpu_book3s { - struct kvm_vcpu vcpu; - struct kvmppc_book3s_shadow_vcpu *shadow_vcpu; struct kvmppc_sid_map sid_map[SID_MAP_NUM]; - struct kvmppc_slb slb[64]; struct { u64 esid; u64 vsid; @@ -81,27 +80,42 @@ struct kvmppc_vcpu_book3s { struct kvmppc_bat dbat[8]; u64 hid[6]; u64 gqr[8]; - int slb_nr; u64 sdr1; u64 hior; u64 msr_mask; - u64 vsid_next; + u64 purr_offset; + u64 spurr_offset; #ifdef CONFIG_PPC_BOOK3S_32 u32 vsid_pool[VSID_POOL_SIZE]; + u32 vsid_next; #else - u64 vsid_first; - u64 vsid_max; + u64 proto_vsid_first; + u64 proto_vsid_max; + u64 proto_vsid_next; #endif int context_id[SID_CONTEXTS]; - ulong prog_flags; /* flags to inject when giving a 700 trap */ + + bool hior_explicit; /* HIOR is set by ioctl, not PVR */ + + struct hlist_head hpte_hash_pte[HPTEG_HASH_NUM_PTE]; + struct hlist_head hpte_hash_pte_long[HPTEG_HASH_NUM_PTE_LONG]; + struct hlist_head hpte_hash_vpte[HPTEG_HASH_NUM_VPTE]; + struct hlist_head hpte_hash_vpte_long[HPTEG_HASH_NUM_VPTE_LONG]; +#ifdef CONFIG_PPC_BOOK3S_64 + struct hlist_head hpte_hash_vpte_64k[HPTEG_HASH_NUM_VPTE_64K]; +#endif + int hpte_cache_count; + spinlock_t mmu_lock; }; #define CONTEXT_HOST 0 #define CONTEXT_GUEST 1 #define CONTEXT_GUEST_END 2 -#define VSID_REAL 0x1fffffffffc00000ULL -#define VSID_BAT 0x1fffffffffb00000ULL +#define VSID_REAL 0x07ffffffffc00000ULL +#define VSID_BAT 0x07ffffffffb00000ULL +#define VSID_64K 0x0800000000000000ULL +#define VSID_1T 0x1000000000000000ULL #define VSID_REAL_DR 0x2000000000000000ULL #define VSID_REAL_IR 0x4000000000000000ULL #define VSID_PR 0x8000000000000000ULL @@ -112,136 +126,188 @@ extern void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong p extern void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 new_msr); extern void kvmppc_mmu_book3s_64_init(struct kvm_vcpu *vcpu); extern void kvmppc_mmu_book3s_32_init(struct kvm_vcpu *vcpu); -extern int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte); +extern void kvmppc_mmu_book3s_hv_init(struct kvm_vcpu *vcpu); +extern int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte, + bool iswrite); +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 long kvmppc_hv_find_lock_hpte(struct kvm *kvm, gva_t eaddr, + unsigned long slb_v, unsigned long valid); extern void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu *vcpu, struct hpte_cache *pte); extern struct hpte_cache *kvmppc_mmu_hpte_cache_next(struct kvm_vcpu *vcpu); +extern void kvmppc_mmu_hpte_cache_free(struct hpte_cache *pte); extern void kvmppc_mmu_hpte_destroy(struct kvm_vcpu *vcpu); extern int kvmppc_mmu_hpte_init(struct kvm_vcpu *vcpu); extern void kvmppc_mmu_invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte); extern int kvmppc_mmu_hpte_sysinit(void); extern void kvmppc_mmu_hpte_sysexit(void); +extern int kvmppc_mmu_hv_init(void); 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 void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec); +extern void kvmppc_book3s_dequeue_irqprio(struct kvm_vcpu *vcpu, + unsigned int vec); +extern void kvmppc_inject_interrupt(struct kvm_vcpu *vcpu, int vec, u64 flags); 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 pfn_t kvmppc_gfn_to_pfn(struct kvm_vcpu *vcpu, gfn_t gfn); - -extern ulong kvmppc_trampoline_lowmem; -extern ulong kvmppc_trampoline_enter; -extern void kvmppc_rmcall(ulong srr0, ulong srr1); -extern void kvmppc_load_up_fpu(void); -extern void kvmppc_load_up_altivec(void); -extern void kvmppc_load_up_vsx(void); +extern pfn_t kvmppc_gfn_to_pfn(struct kvm_vcpu *vcpu, gfn_t gfn, bool writing, + bool *writable); +extern void kvmppc_add_revmap_chain(struct kvm *kvm, struct revmap_entry *rev, + unsigned long *rmap, long pte_index, int realmode); +extern void kvmppc_invalidate_hpte(struct kvm *kvm, unsigned long *hptep, + unsigned long pte_index); +void kvmppc_clear_ref_hpte(struct kvm *kvm, unsigned long *hptep, + unsigned long pte_index); +extern void *kvmppc_pin_guest_page(struct kvm *kvm, unsigned long addr, + unsigned long *nb_ret); +extern void kvmppc_unpin_guest_page(struct kvm *kvm, void *addr, + unsigned long gpa, bool dirty); +extern long kvmppc_virtmode_h_enter(struct kvm_vcpu *vcpu, unsigned long flags, + long pte_index, unsigned long pteh, unsigned long ptel); +extern long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags, + long pte_index, unsigned long pteh, unsigned long ptel, + pgd_t *pgdir, bool realmode, unsigned long *idx_ret); +extern long kvmppc_do_h_remove(struct kvm *kvm, unsigned long flags, + unsigned long pte_index, unsigned long avpn, + unsigned long *hpret); +extern long kvmppc_hv_get_dirty_log(struct kvm *kvm, + struct kvm_memory_slot *memslot, unsigned long *map); +extern void kvmppc_update_lpcr(struct kvm *kvm, unsigned long lpcr, + unsigned long mask); + +extern void kvmppc_entry_trampoline(void); +extern void kvmppc_hv_entry_trampoline(void); extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst); extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst); +extern int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd); +extern void kvmppc_copy_to_svcpu(struct kvmppc_book3s_shadow_vcpu *svcpu, + struct kvm_vcpu *vcpu); +extern void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu, + struct kvmppc_book3s_shadow_vcpu *svcpu); static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu) { - return container_of(vcpu, struct kvmppc_vcpu_book3s, vcpu); + return vcpu->arch.book3s; } -static inline ulong dsisr(void) -{ - ulong r; - asm ( "mfdsisr %0 " : "=r" (r) ); - return r; -} +/* Also add subarch specific defines */ -extern void kvm_return_point(void); -static inline struct kvmppc_book3s_shadow_vcpu *to_svcpu(struct kvm_vcpu *vcpu); +#ifdef CONFIG_KVM_BOOK3S_32_HANDLER +#include <asm/kvm_book3s_32.h> +#endif +#ifdef CONFIG_KVM_BOOK3S_64_HANDLER +#include <asm/kvm_book3s_64.h> +#endif static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val) { - if ( num < 14 ) { - to_svcpu(vcpu)->gpr[num] = val; - to_book3s(vcpu)->shadow_vcpu->gpr[num] = val; - } else - vcpu->arch.gpr[num] = val; + vcpu->arch.gpr[num] = val; } static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num) { - if ( num < 14 ) - return to_svcpu(vcpu)->gpr[num]; - else - return vcpu->arch.gpr[num]; + return vcpu->arch.gpr[num]; } static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val) { - to_svcpu(vcpu)->cr = val; - to_book3s(vcpu)->shadow_vcpu->cr = val; + vcpu->arch.cr = val; } static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu) { - return to_svcpu(vcpu)->cr; + return vcpu->arch.cr; } static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val) { - to_svcpu(vcpu)->xer = val; - to_book3s(vcpu)->shadow_vcpu->xer = val; + vcpu->arch.xer = val; } static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu) { - return to_svcpu(vcpu)->xer; + return vcpu->arch.xer; } static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val) { - to_svcpu(vcpu)->ctr = val; + vcpu->arch.ctr = val; } static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu) { - return to_svcpu(vcpu)->ctr; + return vcpu->arch.ctr; } static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val) { - to_svcpu(vcpu)->lr = val; + vcpu->arch.lr = val; } static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu) { - return to_svcpu(vcpu)->lr; + return vcpu->arch.lr; } static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val) { - to_svcpu(vcpu)->pc = val; + vcpu->arch.pc = val; } static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu) { - return to_svcpu(vcpu)->pc; + return vcpu->arch.pc; } -static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu) +static inline u64 kvmppc_get_msr(struct kvm_vcpu *vcpu); +static inline bool kvmppc_need_byteswap(struct kvm_vcpu *vcpu) { - ulong pc = kvmppc_get_pc(vcpu); - struct kvmppc_book3s_shadow_vcpu *svcpu = to_svcpu(vcpu); + return (kvmppc_get_msr(vcpu) & MSR_LE) != (MSR_KERNEL & MSR_LE); +} +static inline u32 kvmppc_get_last_inst_internal(struct kvm_vcpu *vcpu, ulong pc) +{ /* Load the instruction manually if it failed to do so in the * exit path */ - if (svcpu->last_inst == KVM_INST_FETCH_FAILED) - kvmppc_ld(vcpu, &pc, sizeof(u32), &svcpu->last_inst, false); + if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED) + kvmppc_ld(vcpu, &pc, sizeof(u32), &vcpu->arch.last_inst, false); + + return kvmppc_need_byteswap(vcpu) ? swab32(vcpu->arch.last_inst) : + vcpu->arch.last_inst; +} + +static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu) +{ + return kvmppc_get_last_inst_internal(vcpu, kvmppc_get_pc(vcpu)); +} - return svcpu->last_inst; +/* + * Like kvmppc_get_last_inst(), but for fetching a sc instruction. + * Because the sc instruction sets SRR0 to point to the following + * instruction, we have to fetch from pc - 4. + */ +static inline u32 kvmppc_get_last_sc(struct kvm_vcpu *vcpu) +{ + return kvmppc_get_last_inst_internal(vcpu, kvmppc_get_pc(vcpu) - 4); } static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu) { - return to_svcpu(vcpu)->fault_dar; + return vcpu->arch.fault_dar; +} + +static inline bool is_kvmppc_resume_guest(int r) +{ + return (r == RESUME_GUEST || r == RESUME_GUEST_NV); } /* Magic register values loaded into r3 and r4 before the 'sc' assembly @@ -250,13 +316,10 @@ static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu) #define OSI_SC_MAGIC_R4 0x77810F9B #define INS_DCBZ 0x7c0007ec +/* TO = 31 for unconditional trap */ +#define INS_TW 0x7fe00008 -/* Also add subarch specific defines */ - -#ifdef CONFIG_PPC_BOOK3S_32 -#include <asm/kvm_book3s_32.h> -#else -#include <asm/kvm_book3s_64.h> -#endif +/* LPIDs we support with this build -- runtime limit may be lower */ +#define KVMPPC_NR_LPIDS (LPID_RSVD + 1) #endif /* __ASM_KVM_BOOK3S_H__ */ |