On Fri, 2025-01-24 at 08:20 -0500, Xiaoyao Li wrote: > +static void tdx_finalize_vm(Notifier *notifier, void *unused) > +{ > + TdxFirmware *tdvf = &tdx_guest->tdvf; > + TdxFirmwareEntry *entry; > + > + for_each_tdx_fw_entry(tdvf, entry) { > + switch (entry->type) { > + case TDVF_SECTION_TYPE_BFV: > + case TDVF_SECTION_TYPE_CFV: > + entry->mem_ptr = tdvf->mem_ptr + entry->data_offset; > + break; > + case TDVF_SECTION_TYPE_TD_HOB: > + case TDVF_SECTION_TYPE_TEMP_MEM: > + entry->mem_ptr = qemu_ram_mmap(-1, entry->size, > + > qemu_real_host_page_size(), 0, 0); > + break; Should check for MAP_FAILED return value. > + default: > + error_report("Unsupported TDVF section %d", entry- > >type); > + exit(1); Section entry types have already been checked against valid types in tdvf_parse_and_check_section_entry(), no need to check them again here.