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>
diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
index 0efd759..721e660 100644
--- a/drivers/kvm/kvm_main.c
+++ b/drivers/kvm/kvm_main.c
@@ -408,20 +408,6 @@
}
EXPORT_SYMBOL_GPL(kvm_is_error_hva);
-gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn)
-{
- int i;
- struct kvm_mem_alias *alias;
-
- for (i = 0; i < kvm->naliases; ++i) {
- alias = &kvm->aliases[i];
- if (gfn >= alias->base_gfn
- && gfn < alias->base_gfn + alias->npages)
- return alias->target_gfn + gfn - alias->base_gfn;
- }
- return gfn;
-}
-
static struct kvm_memory_slot *__gfn_to_memslot(struct kvm *kvm, gfn_t gfn)
{
int i;
diff --git a/drivers/kvm/x86.c b/drivers/kvm/x86.c
index 7237cb2..2be5936 100644
--- a/drivers/kvm/x86.c
+++ b/drivers/kvm/x86.c
@@ -1119,6 +1119,20 @@
return kvm->n_alloc_mmu_pages;
}
+gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn)
+{
+ int i;
+ struct kvm_mem_alias *alias;
+
+ for (i = 0; i < kvm->naliases; ++i) {
+ alias = &kvm->aliases[i];
+ if (gfn >= alias->base_gfn
+ && gfn < alias->base_gfn + alias->npages)
+ return alias->target_gfn + gfn - alias->base_gfn;
+ }
+ return gfn;
+}
+
/*
* Set a new alias region. Aliases map a portion of physical memory into
* another portion. This is useful for memory windows, for example the PC
