Re: [PATCH 16/21] KVM: TDX: Premap initial guest memory

From: Paolo Bonzini
Date: Tue Sep 10 2024 - 06:28:53 EST


On 9/4/24 05:07, Rick Edgecombe wrote:
+static int tdx_mem_page_record_premap_cnt(struct kvm *kvm, gfn_t gfn,
+ enum pg_level level, kvm_pfn_t pfn)
+{
+ struct kvm_tdx *kvm_tdx = to_kvm_tdx(kvm);
+
+ /* Returning error here to let TDP MMU bail out early. */
+ if (KVM_BUG_ON(level != PG_LEVEL_4K, kvm)) {
+ tdx_unpin(kvm, pfn);
+ return -EINVAL;
+ }

Should this "if" already be part of patch 14, and in tdx_sept_set_private_spte() rather than tdx_mem_page_record_premap_cnt()?

Thanks,

Paolo