Messages in this thread Patch in this message | | | From | Sean Christopherson <> | Subject | [PATCH v5 11/19] KVM: x86: Free arrays for old memslot when moving memslot's base gfn | Date | Tue, 21 Jan 2020 14:31:49 -0800 |
| |
Explicitly free the metadata arrays (stored in slot->arch) in the old memslot structure when moving the memslot's base gfn is committed. This eliminates x86's dependency on kvm_free_memslot() being called when a memlsot move is committed, and paves the way for removing the funky code in kvm_free_memslot() that conditionally frees structures based on its @dont param.
Reviewed-by: Peter Xu <peterx@redhat.com> Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> --- arch/x86/kvm/x86.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index a9d2d9decbc3..cd7af962accf 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -9974,6 +9974,10 @@ void kvm_arch_commit_memory_region(struct kvm *kvm, */ if (change != KVM_MR_DELETE) kvm_mmu_slot_apply_flags(kvm, (struct kvm_memory_slot *) new); + + /* Free the arrays associated with the old memslot. */ + if (change == KVM_MR_MOVE) + kvm_arch_free_memslot(kvm, old, NULL); } void kvm_arch_flush_shadow_all(struct kvm *kvm) -- 2.24.1
| |