| /* |
| * 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 <agraf@suse.de> |
| */ |
| |
| #ifndef __ASM_KVM_BOOK3S_H__ |
| #define __ASM_KVM_BOOK3S_H__ |
| |
| #include <linux/types.h> |
| #include <linux/kvm_host.h> |
| #include <asm/kvm_book3s_asm.h> |
| |
| 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 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 vcpu->arch.book3s; |
| } |
| |
| /* Also add subarch specific defines */ |
| |
| #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) |
| { |
| 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 bool kvmppc_need_byteswap(struct kvm_vcpu *vcpu) |
| { |
| return (vcpu->arch.shared->msr & 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 (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)); |
| } |
| |
| /* |
| * 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 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 |
| * 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__ */ |
