| Message ID | 20200304174947.69595-3-peterx@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | KVM: Dirty ring interface | expand |
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index bcb9b2ac0791..afa0e9034881 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -346,6 +346,7 @@ struct kvm_memory_slot { unsigned long userspace_addr; u32 flags; short id; + u8 as_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 70f03ce0e5c1..e6484dabfc59 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -1036,6 +1036,8 @@ int __kvm_set_memory_region(struct kvm *kvm, new = old = *slot; + BUILD_BUG_ON(U8_MAX < KVM_ADDRESS_SPACE_NUM); + new.as_id = as_id; new.id = id; new.base_gfn = base_gfn; new.npages = npages;
Cache the address space ID just like the slot ID. It will be used in order to fill in the dirty ring entries. Suggested-by: Paolo Bonzini <pbonzini@redhat.com> Suggested-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Peter Xu <peterx@redhat.com> --- include/linux/kvm_host.h | 1 + virt/kvm/kvm_main.c | 2 ++ 2 files changed, 3 insertions(+)