From d89cc617b954aff4030fce178f7d86f59aaf713d Mon Sep 17 00:00:00 2001 From: Takuya Yoshikawa Date: Wed, 1 Aug 2012 18:03:28 +0900 Subject: KVM: Push rmap into kvm_arch_memory_slot Two reasons: - x86 can integrate rmap and rmap_pde and remove heuristics in __gfn_to_rmap(). - Some architectures do not need rmap. Since rmap is one of the most memory consuming stuff in KVM, ppc'd better restrict the allocation to Book3S HV. Signed-off-by: Takuya Yoshikawa Acked-by: Paul Mackerras Signed-off-by: Avi Kivity --- virt/kvm/kvm_main.c | 11 +---------- 1 file changed, 1 insertion(+), 10 deletions(-) (limited to 'virt/kvm') diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index bcf973e..14ec567 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -550,16 +550,12 @@ static void kvm_destroy_dirty_bitmap(struct kvm_memory_slot *memslot) static void kvm_free_physmem_slot(struct kvm_memory_slot *free, struct kvm_memory_slot *dont) { - if (!dont || free->rmap != dont->rmap) - vfree(free->rmap); - if (!dont || free->dirty_bitmap != dont->dirty_bitmap) kvm_destroy_dirty_bitmap(free); kvm_arch_free_memslot(free, dont); free->npages = 0; - free->rmap = NULL; } void kvm_free_physmem(struct kvm *kvm) @@ -768,11 +764,7 @@ int __kvm_set_memory_region(struct kvm *kvm, if (npages && !old.npages) { new.user_alloc = user_alloc; new.userspace_addr = mem->userspace_addr; -#ifndef CONFIG_S390 - new.rmap = vzalloc(npages * sizeof(*new.rmap)); - if (!new.rmap) - goto out_free; -#endif /* not defined CONFIG_S390 */ + if (kvm_arch_create_memslot(&new, npages)) goto out_free; } @@ -831,7 +823,6 @@ int __kvm_set_memory_region(struct kvm *kvm, /* actual memory is freed via old in kvm_free_physmem_slot below */ if (!npages) { - new.rmap = NULL; new.dirty_bitmap = NULL; memset(&new.arch, 0, sizeof(new.arch)); } -- cgit v1.1