RE: [PATCH v16 059/116] KVM: TDX: Create initial guest memory

[Wang, Wei W]

On Saturday, November 18, 2023 4:15 AM, Isaku Yamahata wrote:
> Please refer to
> static int tdx_sept_set_private_spte(struct kvm *kvm, gfn_t gfn,
>                                      enum pg_level level, kvm_pfn_t pfn)
> 
> The guest memfd provides the page of gfn which is different from kvm_tdx-
> >source_pa. The function calls tdh_mem_page_add().
> 
> tdh_mem_page_add(kvm_tdx->tdr_pa, gpa, hpa, source_pa, &out);
> gpa: corresponds to the page from guest memfd
> source_pa: corresopnds to the page tdx_init_mem_region() pinned down.
> 
> tdh_mem_page_add() copies the page contents from source_pa to gpa and
> gives gpa to the TD guest. not source_pa.
> --
Yes, that's right, thanks.