| Message ID | 20191217204041.10815-12-sean.j.christopherson@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | KVM: Dynamically size memslot arrays | expand |
On Tue, Dec 17, 2019 at 12:40:33PM -0800, Sean Christopherson wrote: > 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. > > Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Reviewed-by: Peter Xu <peterx@redhat.com>
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 0911b2f634c5..5f890812fac3 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -9884,6 +9884,10 @@ 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)
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. Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> --- arch/x86/kvm/x86.c | 4 ++++ 1 file changed, 4 insertions(+)