diff options
Diffstat (limited to 'arch/powerpc/include/asm/kvm_book3s_64.h')
| -rw-r--r-- | arch/powerpc/include/asm/kvm_book3s_64.h | 106 |
1 files changed, 78 insertions, 28 deletions
diff --git a/arch/powerpc/include/asm/kvm_book3s_64.h b/arch/powerpc/include/asm/kvm_book3s_64.h index 21b1ed5df888..b936e174eefd 100644 --- a/arch/powerpc/include/asm/kvm_book3s_64.h +++ b/arch/powerpc/include/asm/kvm_book3s_64.h @@ -1,16 +1,5 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* - * 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 2010 * @@ -25,18 +14,7 @@ #include <asm/book3s/64/mmu-hash.h> #include <asm/cpu_has_feature.h> #include <asm/ppc-opcode.h> - -#ifdef CONFIG_PPC_PSERIES -static inline bool kvmhv_on_pseries(void) -{ - return !cpu_has_feature(CPU_FTR_HVMODE); -} -#else -static inline bool kvmhv_on_pseries(void) -{ - return false; -} -#endif +#include <asm/pte-walk.h> /* * Structure for a nested guest, that is, for a guest that is managed by @@ -53,7 +31,6 @@ struct kvm_nested_guest { struct mutex tlb_lock; /* serialize page faults and tlbies */ struct kvm_nested_guest *next; cpumask_t need_tlb_flush; - cpumask_t cpu_in_guest; short prev_cpu[NR_CPUS]; u8 radix; /* is this nested guest radix */ }; @@ -163,10 +140,20 @@ static inline bool kvmhv_vcpu_is_radix(struct kvm_vcpu *vcpu) return radix; } +unsigned long kvmppc_msr_hard_disable_set_facilities(struct kvm_vcpu *vcpu, unsigned long msr); + +int kvmhv_vcpu_entry_p9(struct kvm_vcpu *vcpu, u64 time_limit, unsigned long lpcr, u64 *tb); + #define KVM_DEFAULT_HPT_ORDER 24 /* 16MB HPT by default */ #endif /* + * Invalid HDSISR value which is used to indicate when HW has not set the reg. + * Used to work around an errata. + */ +#define HDSISR_CANARY 0x7fff + +/* * We use a lock bit in HPTE dword 0 to synchronize updates and * accesses to each HPTE, and another bit to indicate non-present * HPTEs. @@ -379,6 +366,10 @@ static inline unsigned long compute_tlbie_rb(unsigned long v, unsigned long r, rb |= 1; /* L field */ rb |= r & 0xff000 & ((1ul << a_pgshift) - 1); /* LP field */ } + /* + * This sets both bits of the B field in the PTE. 0b1x values are + * reserved, but those will have been filtered by kvmppc_do_h_enter. + */ rb |= (v >> HPTE_V_SSIZE_SHIFT) << 8; /* B field */ return rb; } @@ -445,7 +436,7 @@ static inline pte_t kvmppc_read_update_linux_pte(pte_t *ptep, int writing) continue; } /* If pte is not present return None */ - if (unlikely(!(pte_val(old_pte) & _PAGE_PRESENT))) + if (unlikely(!pte_present(old_pte))) return __pte(0); new_pte = pte_mkyoung(old_pte); @@ -546,7 +537,7 @@ static inline void note_hpte_modification(struct kvm *kvm, */ static inline struct kvm_memslots *kvm_memslots_raw(struct kvm *kvm) { - return rcu_dereference_raw_notrace(kvm->memslots[0]); + return rcu_dereference_raw_check(kvm->memslots[0]); } extern void kvmppc_mmu_debugfs_init(struct kvm *kvm); @@ -633,7 +624,7 @@ static inline void copy_to_checkpoint(struct kvm_vcpu *vcpu) extern int kvmppc_create_pte(struct kvm *kvm, pgd_t *pgtable, pte_t pte, unsigned long gpa, unsigned int level, - unsigned long mmu_seq, unsigned int lpid, + unsigned long mmu_seq, u64 lpid, unsigned long *rmapp, struct rmap_nested **n_rmap); extern void kvmhv_insert_nest_rmap(struct kvm *kvm, unsigned long *rmapp, struct rmap_nested **n_rmap); @@ -645,6 +636,65 @@ extern void kvmhv_remove_nest_rmap_range(struct kvm *kvm, unsigned long gpa, unsigned long hpa, unsigned long nbytes); +static inline pte_t * +find_kvm_secondary_pte_unlocked(struct kvm *kvm, unsigned long ea, + unsigned *hshift) +{ + pte_t *pte; + + pte = __find_linux_pte(kvm->arch.pgtable, ea, NULL, hshift); + return pte; +} + +static inline pte_t *find_kvm_secondary_pte(struct kvm *kvm, unsigned long ea, + unsigned *hshift) +{ + pte_t *pte; + + VM_WARN(!spin_is_locked(&kvm->mmu_lock), + "%s called with kvm mmu_lock not held \n", __func__); + pte = __find_linux_pte(kvm->arch.pgtable, ea, NULL, hshift); + + return pte; +} + +static inline pte_t *find_kvm_host_pte(struct kvm *kvm, unsigned long mmu_seq, + unsigned long ea, unsigned *hshift) +{ + pte_t *pte; + + VM_WARN(!spin_is_locked(&kvm->mmu_lock), + "%s called with kvm mmu_lock not held \n", __func__); + + if (mmu_invalidate_retry(kvm, mmu_seq)) + return NULL; + + pte = __find_linux_pte(kvm->mm->pgd, ea, NULL, hshift); + + return pte; +} + +extern pte_t *find_kvm_nested_guest_pte(struct kvm *kvm, unsigned long lpid, + unsigned long ea, unsigned *hshift); + +int kvmhv_nestedv2_vcpu_create(struct kvm_vcpu *vcpu, struct kvmhv_nestedv2_io *io); +void kvmhv_nestedv2_vcpu_free(struct kvm_vcpu *vcpu, struct kvmhv_nestedv2_io *io); +int kvmhv_nestedv2_flush_vcpu(struct kvm_vcpu *vcpu, u64 time_limit); +int kvmhv_nestedv2_set_ptbl_entry(unsigned long lpid, u64 dw0, u64 dw1); +int kvmhv_nestedv2_parse_output(struct kvm_vcpu *vcpu); +int kvmhv_nestedv2_set_vpa(struct kvm_vcpu *vcpu, unsigned long vpa); + +int kvmhv_counters_tracepoint_regfunc(void); +void kvmhv_counters_tracepoint_unregfunc(void); +int kvmhv_get_l2_counters_status(void); +void kvmhv_set_l2_counters_status(int cpu, bool status); +u64 kvmhv_get_l1_to_l2_cs_time(void); +u64 kvmhv_get_l2_to_l1_cs_time(void); +u64 kvmhv_get_l2_runtime_agg(void); +u64 kvmhv_get_l1_to_l2_cs_time_vcpu(void); +u64 kvmhv_get_l2_to_l1_cs_time_vcpu(void); +u64 kvmhv_get_l2_runtime_agg_vcpu(void); + #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */ #endif /* __ASM_KVM_BOOK3S_64_H__ */ |