On Tue, 15 Aug 2023 10:18:47 -0700, isaku.yamahata@xxxxxxxxx wrote: > From: Isaku Yamahata <isaku.yamahata@xxxxxxxxx> > > This patch series for KVM guest memfd is to have common code base for SEV and > TDX. Several minor fixes. Based on this patch series, TDX KVM can defer page > clearing without mmu lock. > > Isaku Yamahata (6): > KVM: gmem: Make kvm_gmem_bind return EBADF on wrong fd > KVM: gmem: removed duplicated kvm_gmem_init() > KVM: gmem: Fix kvm_gmem_issue_arch_invalidate() > KVM: gmem: protect kvm_mmu_invalidate_end() > KVM: gmem: Avoid race with kvm_gmem_release and mmu notifier > RFC: KVM: gmem: Guarantee the order of destruction > > [...] Applied patches 1 and 2 to kvm-x86 guest_memfd. I'll post the alternative approach for fixing the unlocking bug next week (need to test, and I'm out of time this week). Regarding the initialize/invalidate hooks, I resurrected the discussion from the previous version[*], I'd like to bottom out on a solution in that thread before applying anything. [*] https://lore.kernel.org/all/ZN%2FwY53TF2aOZtLu@xxxxxxxxxx [1/8] KVM: gmem: Make kvm_gmem_bind return EBADF on wrong fd https://github.com/kvm-x86/linux/commit/07ac04fbefce [2/8] KVM: gmem: removed duplicated kvm_gmem_init() https://github.com/kvm-x86/linux/commit/9ab46d91d5ea -- https://github.com/kvm-x86/linux/tree/next https://github.com/kvm-x86/linux/tree/fixes