KVM: Keep slot ID in memory slot structure

May be used for distinguishing between internal and user slots, or for sorting
slots in size order.

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

diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index e820eb5..e796326 100644 (file)
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -124,6 +124,7 @@ struct kvm_memory_slot {
        } *lpage_info[KVM_NR_PAGE_SIZES - 1];
        unsigned long userspace_addr;
        int user_alloc;
+       int id;
 };
 
 static inline unsigned long kvm_dirty_bitmap_bytes(struct kvm_memory_slot *memslot)

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 5bd2f34..74f7319 100644 (file)
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -570,6 +570,7 @@ int __kvm_set_memory_region(struct kvm *kvm,
 
        new = old = *memslot;
 
+       new.id = mem->slot;
        new.base_gfn = base_gfn;
        new.npages = npages;
        new.flags = mem->flags;