diff options
-rw-r--r-- | arch/powerpc/kvm/book3s_hv_rm_mmu.c | 23 | ||||
-rw-r--r-- | include/linux/kvm_host.h | 25 | ||||
-rw-r--r-- | virt/kvm/kvm_main.c | 21 |
3 files changed, 28 insertions, 41 deletions
diff --git a/arch/powerpc/kvm/book3s_hv_rm_mmu.c b/arch/powerpc/kvm/book3s_hv_rm_mmu.c index 5f3c60b89faf..def880aea63a 100644 --- a/arch/powerpc/kvm/book3s_hv_rm_mmu.c +++ b/arch/powerpc/kvm/book3s_hv_rm_mmu.c | |||
@@ -21,25 +21,6 @@ | |||
21 | #include <asm/synch.h> | 21 | #include <asm/synch.h> |
22 | #include <asm/ppc-opcode.h> | 22 | #include <asm/ppc-opcode.h> |
23 | 23 | ||
24 | /* | ||
25 | * Since this file is built in even if KVM is a module, we need | ||
26 | * a local copy of this function for the case where kvm_main.c is | ||
27 | * modular. | ||
28 | */ | ||
29 | static struct kvm_memory_slot *builtin_gfn_to_memslot(struct kvm *kvm, | ||
30 | gfn_t gfn) | ||
31 | { | ||
32 | struct kvm_memslots *slots; | ||
33 | struct kvm_memory_slot *memslot; | ||
34 | |||
35 | slots = kvm_memslots(kvm); | ||
36 | kvm_for_each_memslot(memslot, slots) | ||
37 | if (gfn >= memslot->base_gfn && | ||
38 | gfn < memslot->base_gfn + memslot->npages) | ||
39 | return memslot; | ||
40 | return NULL; | ||
41 | } | ||
42 | |||
43 | /* Translate address of a vmalloc'd thing to a linear map address */ | 24 | /* Translate address of a vmalloc'd thing to a linear map address */ |
44 | static void *real_vmalloc_addr(void *x) | 25 | static void *real_vmalloc_addr(void *x) |
45 | { | 26 | { |
@@ -99,7 +80,7 @@ static void remove_revmap_chain(struct kvm *kvm, long pte_index, | |||
99 | rcbits = hpte_r & (HPTE_R_R | HPTE_R_C); | 80 | rcbits = hpte_r & (HPTE_R_R | HPTE_R_C); |
100 | ptel = rev->guest_rpte |= rcbits; | 81 | ptel = rev->guest_rpte |= rcbits; |
101 | gfn = hpte_rpn(ptel, hpte_page_size(hpte_v, ptel)); | 82 | gfn = hpte_rpn(ptel, hpte_page_size(hpte_v, ptel)); |
102 | memslot = builtin_gfn_to_memslot(kvm, gfn); | 83 | memslot = __gfn_to_memslot(kvm_memslots(kvm), gfn); |
103 | if (!memslot || (memslot->flags & KVM_MEMSLOT_INVALID)) | 84 | if (!memslot || (memslot->flags & KVM_MEMSLOT_INVALID)) |
104 | return; | 85 | return; |
105 | 86 | ||
@@ -181,7 +162,7 @@ long kvmppc_h_enter(struct kvm_vcpu *vcpu, unsigned long flags, | |||
181 | /* Find the memslot (if any) for this address */ | 162 | /* Find the memslot (if any) for this address */ |
182 | gpa = (ptel & HPTE_R_RPN) & ~(psize - 1); | 163 | gpa = (ptel & HPTE_R_RPN) & ~(psize - 1); |
183 | gfn = gpa >> PAGE_SHIFT; | 164 | gfn = gpa >> PAGE_SHIFT; |
184 | memslot = builtin_gfn_to_memslot(kvm, gfn); | 165 | memslot = __gfn_to_memslot(kvm_memslots(kvm), gfn); |
185 | pa = 0; | 166 | pa = 0; |
186 | is_io = ~0ul; | 167 | is_io = ~0ul; |
187 | rmap = NULL; | 168 | rmap = NULL; |
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index eada8e69fe58..9698080c902b 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h | |||
@@ -651,6 +651,31 @@ static inline void kvm_guest_exit(void) | |||
651 | current->flags &= ~PF_VCPU; | 651 | current->flags &= ~PF_VCPU; |
652 | } | 652 | } |
653 | 653 | ||
654 | /* | ||
655 | * search_memslots() and __gfn_to_memslot() are here because they are | ||
656 | * used in non-modular code in arch/powerpc/kvm/book3s_hv_rm_mmu.c. | ||
657 | * gfn_to_memslot() itself isn't here as an inline because that would | ||
658 | * bloat other code too much. | ||
659 | */ | ||
660 | static inline struct kvm_memory_slot * | ||
661 | search_memslots(struct kvm_memslots *slots, gfn_t gfn) | ||
662 | { | ||
663 | struct kvm_memory_slot *memslot; | ||
664 | |||
665 | kvm_for_each_memslot(memslot, slots) | ||
666 | if (gfn >= memslot->base_gfn && | ||
667 | gfn < memslot->base_gfn + memslot->npages) | ||
668 | return memslot; | ||
669 | |||
670 | return NULL; | ||
671 | } | ||
672 | |||
673 | static inline struct kvm_memory_slot * | ||
674 | __gfn_to_memslot(struct kvm_memslots *slots, gfn_t gfn) | ||
675 | { | ||
676 | return search_memslots(slots, gfn); | ||
677 | } | ||
678 | |||
654 | static inline int memslot_id(struct kvm *kvm, gfn_t gfn) | 679 | static inline int memslot_id(struct kvm *kvm, gfn_t gfn) |
655 | { | 680 | { |
656 | return gfn_to_memslot(kvm, gfn)->id; | 681 | return gfn_to_memslot(kvm, gfn)->id; |
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 9f32bffd37c0..470e30520fe8 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c | |||
@@ -640,19 +640,6 @@ static int kvm_create_dirty_bitmap(struct kvm_memory_slot *memslot) | |||
640 | } | 640 | } |
641 | #endif /* !CONFIG_S390 */ | 641 | #endif /* !CONFIG_S390 */ |
642 | 642 | ||
643 | static struct kvm_memory_slot * | ||
644 | search_memslots(struct kvm_memslots *slots, gfn_t gfn) | ||
645 | { | ||
646 | struct kvm_memory_slot *memslot; | ||
647 | |||
648 | kvm_for_each_memslot(memslot, slots) | ||
649 | if (gfn >= memslot->base_gfn && | ||
650 | gfn < memslot->base_gfn + memslot->npages) | ||
651 | return memslot; | ||
652 | |||
653 | return NULL; | ||
654 | } | ||
655 | |||
656 | static int cmp_memslot(const void *slot1, const void *slot2) | 643 | static int cmp_memslot(const void *slot1, const void *slot2) |
657 | { | 644 | { |
658 | struct kvm_memory_slot *s1, *s2; | 645 | struct kvm_memory_slot *s1, *s2; |
@@ -1031,12 +1018,6 @@ int kvm_is_error_hva(unsigned long addr) | |||
1031 | } | 1018 | } |
1032 | EXPORT_SYMBOL_GPL(kvm_is_error_hva); | 1019 | EXPORT_SYMBOL_GPL(kvm_is_error_hva); |
1033 | 1020 | ||
1034 | static struct kvm_memory_slot *__gfn_to_memslot(struct kvm_memslots *slots, | ||
1035 | gfn_t gfn) | ||
1036 | { | ||
1037 | return search_memslots(slots, gfn); | ||
1038 | } | ||
1039 | |||
1040 | struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn) | 1021 | struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn) |
1041 | { | 1022 | { |
1042 | return __gfn_to_memslot(kvm_memslots(kvm), gfn); | 1023 | return __gfn_to_memslot(kvm_memslots(kvm), gfn); |
@@ -1459,7 +1440,7 @@ int kvm_gfn_to_hva_cache_init(struct kvm *kvm, struct gfn_to_hva_cache *ghc, | |||
1459 | 1440 | ||
1460 | ghc->gpa = gpa; | 1441 | ghc->gpa = gpa; |
1461 | ghc->generation = slots->generation; | 1442 | ghc->generation = slots->generation; |
1462 | ghc->memslot = __gfn_to_memslot(slots, gfn); | 1443 | ghc->memslot = gfn_to_memslot(kvm, gfn); |
1463 | ghc->hva = gfn_to_hva_many(ghc->memslot, gfn, NULL); | 1444 | ghc->hva = gfn_to_hva_many(ghc->memslot, gfn, NULL); |
1464 | if (!kvm_is_error_hva(ghc->hva)) | 1445 | if (!kvm_is_error_hva(ghc->hva)) |
1465 | ghc->hva += offset; | 1446 | ghc->hva += offset; |