From c43c3a8683fe624b67b91a06f1c25cd752a05b3b Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Wed, 12 Dec 2018 15:16:48 +1100 Subject: KVM: PPC: Book3S HV: Cleanups - constify memslots, fix comments This adds 'const' to the declarations for the struct kvm_memory_slot pointer parameters of some functions, which will make it possible to call those functions from kvmppc_core_commit_memory_region_hv() in the next patch. This also fixes some comments about locking. Signed-off-by: Paul Mackerras Reviewed-by: Suraj Jitindar Singh Reviewed-by: David Gibson Signed-off-by: Paul Mackerras --- arch/powerpc/include/asm/kvm_book3s.h | 9 +++------ arch/powerpc/include/asm/kvm_book3s_64.h | 2 +- arch/powerpc/kvm/book3s_64_mmu_radix.c | 9 +++++---- arch/powerpc/kvm/book3s_hv_nested.c | 2 +- arch/powerpc/kvm/book3s_hv_rm_mmu.c | 2 +- 5 files changed, 11 insertions(+), 13 deletions(-) (limited to 'arch/powerpc') diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h index 09f8e9ba69bc..728d2b7c9981 100644 --- a/arch/powerpc/include/asm/kvm_book3s.h +++ b/arch/powerpc/include/asm/kvm_book3s.h @@ -197,7 +197,8 @@ 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_unmap_pte(struct kvm *kvm, pte_t *pte, unsigned long gpa, - unsigned int shift, struct kvm_memory_slot *memslot, + 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, bool writing, unsigned long gpa, @@ -215,10 +216,6 @@ 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 void kvmppc_unmap_pte(struct kvm *kvm, pte_t *pte, - unsigned long gpa, unsigned int shift, - struct kvm_memory_slot *memslot, - unsigned int lpid); 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, @@ -242,7 +239,7 @@ 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, unsigned long *rmap, long pte_index, int realmode); -extern void kvmppc_update_dirty_map(struct kvm_memory_slot *memslot, +extern void kvmppc_update_dirty_map(const struct kvm_memory_slot *memslot, unsigned long gfn, unsigned long psize); extern void kvmppc_invalidate_hpte(struct kvm *kvm, __be64 *hptep, unsigned long pte_index); diff --git a/arch/powerpc/include/asm/kvm_book3s_64.h b/arch/powerpc/include/asm/kvm_book3s_64.h index 6d298145d564..c9cbaf02fc73 100644 --- a/arch/powerpc/include/asm/kvm_book3s_64.h +++ b/arch/powerpc/include/asm/kvm_book3s_64.h @@ -625,7 +625,7 @@ extern int kvmppc_create_pte(struct kvm *kvm, pgd_t *pgtable, pte_t pte, extern void kvmhv_insert_nest_rmap(struct kvm *kvm, unsigned long *rmapp, struct rmap_nested **n_rmap); extern void kvmhv_remove_nest_rmap_range(struct kvm *kvm, - struct kvm_memory_slot *memslot, + const struct kvm_memory_slot *memslot, unsigned long gpa, unsigned long hpa, unsigned long nbytes); diff --git a/arch/powerpc/kvm/book3s_64_mmu_radix.c b/arch/powerpc/kvm/book3s_64_mmu_radix.c index 87ad35e0b138..52711eb052f5 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_radix.c +++ b/arch/powerpc/kvm/book3s_64_mmu_radix.c @@ -284,7 +284,8 @@ static void kvmppc_pmd_free(pmd_t *pmdp) /* Called with kvm->mmu_lock held */ void kvmppc_unmap_pte(struct kvm *kvm, pte_t *pte, unsigned long gpa, - unsigned int shift, struct kvm_memory_slot *memslot, + unsigned int shift, + const struct kvm_memory_slot *memslot, unsigned int lpid) { @@ -861,7 +862,7 @@ int kvmppc_book3s_radix_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu, return ret; } -/* Called with kvm->lock held */ +/* Called with kvm->mmu_lock held */ int kvm_unmap_radix(struct kvm *kvm, struct kvm_memory_slot *memslot, unsigned long gfn) { @@ -876,7 +877,7 @@ int kvm_unmap_radix(struct kvm *kvm, struct kvm_memory_slot *memslot, return 0; } -/* Called with kvm->lock held */ +/* Called with kvm->mmu_lock held */ int kvm_age_radix(struct kvm *kvm, struct kvm_memory_slot *memslot, unsigned long gfn) { @@ -895,7 +896,7 @@ int kvm_age_radix(struct kvm *kvm, struct kvm_memory_slot *memslot, return ref; } -/* Called with kvm->lock held */ +/* Called with kvm->mmu_lock held */ int kvm_test_age_radix(struct kvm *kvm, struct kvm_memory_slot *memslot, unsigned long gfn) { diff --git a/arch/powerpc/kvm/book3s_hv_nested.c b/arch/powerpc/kvm/book3s_hv_nested.c index 401d2ecbebc5..6d1b14bd7e65 100644 --- a/arch/powerpc/kvm/book3s_hv_nested.c +++ b/arch/powerpc/kvm/book3s_hv_nested.c @@ -723,7 +723,7 @@ static void kvmhv_remove_nest_rmap_list(struct kvm *kvm, unsigned long *rmapp, /* called with kvm->mmu_lock held */ void kvmhv_remove_nest_rmap_range(struct kvm *kvm, - struct kvm_memory_slot *memslot, + const struct kvm_memory_slot *memslot, unsigned long gpa, unsigned long hpa, unsigned long nbytes) { diff --git a/arch/powerpc/kvm/book3s_hv_rm_mmu.c b/arch/powerpc/kvm/book3s_hv_rm_mmu.c index a67cf1cdeda4..3b3791ed74a6 100644 --- a/arch/powerpc/kvm/book3s_hv_rm_mmu.c +++ b/arch/powerpc/kvm/book3s_hv_rm_mmu.c @@ -107,7 +107,7 @@ void kvmppc_add_revmap_chain(struct kvm *kvm, struct revmap_entry *rev, EXPORT_SYMBOL_GPL(kvmppc_add_revmap_chain); /* Update the dirty bitmap of a memslot */ -void kvmppc_update_dirty_map(struct kvm_memory_slot *memslot, +void kvmppc_update_dirty_map(const struct kvm_memory_slot *memslot, unsigned long gfn, unsigned long psize) { unsigned long npages; -- cgit v1.2.3-55-g7522