/* * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License, version 2, as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * * Copyright SUSE Linux Products GmbH 2009 * * Authors: Alexander Graf */ #ifndef __ASM_KVM_BOOK3S_H__ #define __ASM_KVM_BOOK3S_H__ #include #include #include struct kvmppc_bat { u64 raw; u32 bepi; u32 bepi_mask; u32 brpn; u8 wimg; u8 pp; bool vs : 1; bool vp : 1; }; struct kvmppc_sid_map { u64 guest_vsid; u64 guest_esid; u64 host_vsid; bool valid : 1; }; #define SID_MAP_BITS 9 #define SID_MAP_NUM (1 << SID_MAP_BITS) #define SID_MAP_MASK (SID_MAP_NUM - 1) #ifdef CONFIG_PPC_BOOK3S_64 #define SID_CONTEXTS 1 #else #define SID_CONTEXTS 128 #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 kvmppc_sid_map sid_map[SID_MAP_NUM]; struct { u64 esid; u64 vsid; } slb_shadow[64]; u8 slb_shadow_max; struct kvmppc_bat ibat[8]; struct kvmppc_bat dbat[8]; u64 hid[6]; u64 gqr[8]; u64 sdr1; u64 hior; u64 msr_mask; u64 purr_offset; u64 spurr_offset; #ifdef CONFIG_PPC_BOOK3S_32 u32 vsid_pool[VSID_POOL_SIZE]; u32 vsid_next; #else u64 proto_vsid_first; u64 proto_vsid_max; u64 proto_vsid_next; #endif int context_id[SID_CONTEXTS]; 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 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 extern void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, ulong ea, ulong ea_mask); extern void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 vp, u64 vp_mask); extern void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong pa_end); 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 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, 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 void kvmppc_load_up_fpu(void); extern void kvmppc_load_up_altivec(void); extern void kvmppc_load_up_vsx(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); static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu) { return vcpu->arch.book3s; } /* Also add subarch specific defines */ #ifdef CONFIG_KVM_BOOK3S_32_HANDLER #include #endif #ifdef CONFIG_KVM_BOOK3S_64_HANDLER #include #endif static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val) { vcpu->arch.gpr[num] = val; } static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num) { return vcpu->arch.gpr[num]; } static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val) { vcpu->arch.cr = val; } static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu) { return vcpu->arch.cr; } static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val) { vcpu->arch.xer = val; } static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu) { return vcpu->arch.xer; } static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val) { vcpu->arch.ctr = val; } static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu) { return vcpu->arch.ctr; } static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val) { vcpu->arch.lr = val; } static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu) { return vcpu->arch.lr; } static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val) { vcpu->arch.pc = val; } static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu) { return vcpu->arch.pc; } static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu) { ulong pc = kvmppc_get_pc(vcpu); /* Load the instruction manually if it failed to do so in the * exit path */ if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED) kvmppc_ld(vcpu, &pc, sizeof(u32), &vcpu->arch.last_inst, false); return vcpu->arch.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) { ulong pc = kvmppc_get_pc(vcpu) - 4; /* Load the instruction manually if it failed to do so in the * exit path */ if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED) kvmppc_ld(vcpu, &pc, sizeof(u32), &vcpu->arch.last_inst, false); return vcpu->arch.last_inst; } static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu) { return vcpu->arch.fault_dar; } #ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE static inline unsigned long kvmppc_interrupt_offset(struct kvm_vcpu *vcpu) { return to_book3s(vcpu)->hior; } static inline void kvmppc_update_int_pending(struct kvm_vcpu *vcpu, unsigned long pending_now, unsigned long old_pending) { if (pending_now) vcpu->arch.shared->int_pending = 1; else if (old_pending) vcpu->arch.shared->int_pending = 0; } static inline bool kvmppc_critical_section(struct kvm_vcpu *vcpu) { ulong crit_raw = vcpu->arch.shared->critical; ulong crit_r1 = kvmppc_get_gpr(vcpu, 1); bool crit; /* Truncate crit indicators in 32 bit mode */ if (!(vcpu->arch.shared->msr & MSR_SF)) { crit_raw &= 0xffffffff; crit_r1 &= 0xffffffff; } /* Critical section when crit == r1 */ crit = (crit_raw == crit_r1); /* ... and we're in supervisor mode */ crit = crit && !(vcpu->arch.shared->msr & MSR_PR); return crit; } #else /* CONFIG_KVM_BOOK3S_PR_POSSIBLE */ static inline unsigned long kvmppc_interrupt_offset(struct kvm_vcpu *vcpu) { return 0; } static inline void kvmppc_update_int_pending(struct kvm_vcpu *vcpu, unsigned long pending_now, unsigned long old_pending) { } static inline bool kvmppc_critical_section(struct kvm_vcpu *vcpu) { return false; } #endif /* Magic register values loaded into r3 and r4 before the 'sc' assembly * instruction for the OSI hypercalls */ #define OSI_SC_MAGIC_R3 0x113724FA #define OSI_SC_MAGIC_R4 0x77810F9B #define INS_DCBZ 0x7c0007ec /* TO = 31 for unconditional trap */ #define INS_TW 0x7fe00008 /* LPIDs we support with this build -- runtime limit may be lower */ #define KVMPPC_NR_LPIDS (LPID_RSVD + 1) #endif /* __ASM_KVM_BOOK3S_H__ */