KVM: Portability: Move unalias_gfn to arch dependent file
Non-x86 archs don't need this mechanism. Move it to arch, and keep its interface in common. Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com> Acked-by: Carsten Otte <cotte@de.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
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@ -408,20 +408,6 @@ int kvm_is_error_hva(unsigned long addr)
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}
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EXPORT_SYMBOL_GPL(kvm_is_error_hva);
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gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn)
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{
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int i;
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struct kvm_mem_alias *alias;
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for (i = 0; i < kvm->naliases; ++i) {
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alias = &kvm->aliases[i];
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if (gfn >= alias->base_gfn
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&& gfn < alias->base_gfn + alias->npages)
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return alias->target_gfn + gfn - alias->base_gfn;
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}
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return gfn;
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}
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static struct kvm_memory_slot *__gfn_to_memslot(struct kvm *kvm, gfn_t gfn)
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{
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int i;
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@ -1119,6 +1119,20 @@ static int kvm_vm_ioctl_get_nr_mmu_pages(struct kvm *kvm)
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return kvm->n_alloc_mmu_pages;
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}
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gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn)
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{
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int i;
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struct kvm_mem_alias *alias;
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for (i = 0; i < kvm->naliases; ++i) {
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alias = &kvm->aliases[i];
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if (gfn >= alias->base_gfn
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&& gfn < alias->base_gfn + alias->npages)
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return alias->target_gfn + gfn - alias->base_gfn;
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}
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return gfn;
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}
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/*
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* Set a new alias region. Aliases map a portion of physical memory into
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* another portion. This is useful for memory windows, for example the PC
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