diff options
Diffstat (limited to 'arch/mips/kvm/mmu.c')
| -rw-r--r-- | arch/mips/kvm/mmu.c | 44 |
1 files changed, 5 insertions, 39 deletions
diff --git a/arch/mips/kvm/mmu.c b/arch/mips/kvm/mmu.c index 49bd160f4d85..87fa8d8a1031 100644 --- a/arch/mips/kvm/mmu.c +++ b/arch/mips/kvm/mmu.c @@ -25,41 +25,9 @@ #define KVM_MMU_CACHE_MIN_PAGES 2 #endif -static int mmu_topup_memory_cache(struct kvm_mmu_memory_cache *cache, - int min, int max) -{ - void *page; - - BUG_ON(max > KVM_NR_MEM_OBJS); - if (cache->nobjs >= min) - return 0; - while (cache->nobjs < max) { - page = (void *)__get_free_page(GFP_KERNEL); - if (!page) - return -ENOMEM; - cache->objects[cache->nobjs++] = page; - } - return 0; -} - -static void mmu_free_memory_cache(struct kvm_mmu_memory_cache *mc) -{ - while (mc->nobjs) - free_page((unsigned long)mc->objects[--mc->nobjs]); -} - -static void *mmu_memory_cache_alloc(struct kvm_mmu_memory_cache *mc) -{ - void *p; - - BUG_ON(!mc || !mc->nobjs); - p = mc->objects[--mc->nobjs]; - return p; -} - void kvm_mmu_free_memory_caches(struct kvm_vcpu *vcpu) { - mmu_free_memory_cache(&vcpu->arch.mmu_page_cache); + kvm_mmu_free_memory_cache(&vcpu->arch.mmu_page_cache); } /** @@ -153,7 +121,7 @@ static pte_t *kvm_mips_walk_pgd(pgd_t *pgd, struct kvm_mmu_memory_cache *cache, if (!cache) return NULL; - new_pmd = mmu_memory_cache_alloc(cache); + new_pmd = kvm_mmu_memory_cache_alloc(cache); pmd_init((unsigned long)new_pmd, (unsigned long)invalid_pte_table); pud_populate(NULL, pud, new_pmd); @@ -164,7 +132,7 @@ static pte_t *kvm_mips_walk_pgd(pgd_t *pgd, struct kvm_mmu_memory_cache *cache, if (!cache) return NULL; - new_pte = mmu_memory_cache_alloc(cache); + new_pte = kvm_mmu_memory_cache_alloc(cache); clear_page(new_pte); pmd_populate_kernel(NULL, pmd, new_pte); } @@ -711,8 +679,7 @@ static int kvm_mips_map_page(struct kvm_vcpu *vcpu, unsigned long gpa, goto out; /* We need a minimum of cached pages ready for page table creation */ - err = mmu_topup_memory_cache(memcache, KVM_MMU_CACHE_MIN_PAGES, - KVM_NR_MEM_OBJS); + err = kvm_mmu_topup_memory_cache(memcache, KVM_MMU_CACHE_MIN_PAGES); if (err) goto out; @@ -796,8 +763,7 @@ static pte_t *kvm_trap_emul_pte_for_gva(struct kvm_vcpu *vcpu, int ret; /* We need a minimum of cached pages ready for page table creation */ - ret = mmu_topup_memory_cache(memcache, KVM_MMU_CACHE_MIN_PAGES, - KVM_NR_MEM_OBJS); + ret = kvm_mmu_topup_memory_cache(memcache, KVM_MMU_CACHE_MIN_PAGES); if (ret) return NULL; |