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KVM: Remove memory alias support

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

Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Avi Kivity
2010-06-21 11:44:20 +03:00
parent fc34531db3
commit a1f4d39500
13 changed files with 11 additions and 225 deletions
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21
arch/x86/include/asm/kvm_host.h
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@@ -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);