KVM: Remove memory alias support

As advertised in feature-removal-schedule.txt.  Equivalent support is provided
by overlapping memory regions.

Signed-off-by: Avi Kivity <avi@redhat.com>

1 files changed, 0 insertions, 21 deletions

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 2ec2e27a403e..a57cdeacc4d2 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -69,8 +69,6 @@
 
 #define IOPL_SHIFT 12
 
-#define KVM_ALIAS_SLOTS 4
-
 #define KVM_PERMILLE_MMU_PAGES 20
 #define KVM_MIN_ALLOC_MMU_PAGES 64
 #define KVM_MMU_HASH_SHIFT 10
@@ -362,24 +360,7 @@ struct kvm_vcpu_arch {
         u64 hv_vapic;
 };
 
-struct kvm_mem_alias {
-        gfn_t base_gfn;
-        unsigned long npages;
-        gfn_t target_gfn;
-#define KVM_ALIAS_INVALID     1UL
-        unsigned long flags;
-};
-
-#define KVM_ARCH_HAS_UNALIAS_INSTANTIATION
-
-struct kvm_mem_aliases {
-        struct kvm_mem_alias aliases[KVM_ALIAS_SLOTS];
-        int naliases;
-};
-
 struct kvm_arch {
-        struct kvm_mem_aliases *aliases;
-
         unsigned int n_free_mmu_pages;
         unsigned int n_requested_mmu_pages;
         unsigned int n_alloc_mmu_pages;
@@ -655,8 +636,6 @@ void kvm_disable_tdp(void);
 int complete_pio(struct kvm_vcpu *vcpu);
 bool kvm_check_iopl(struct kvm_vcpu *vcpu);
 
-struct kvm_memory_slot *gfn_to_memslot_unaliased(struct kvm *kvm, gfn_t gfn);
-
 static inline struct kvm_mmu_page *page_header(hpa_t shadow_page)
 {
         struct page *page = pfn_to_page(shadow_page >> PAGE_SHIFT);