build_rsdp(GArray *rsdp_table, BIOSLinker *linker, unsigned rsdt_tbl_offset) { AcpiRsdpDescriptor *rsdp = acpi_data_push(rsdp_table, sizeof *rsdp); unsigned rsdt_pa_size = sizeof(rsdp->rsdt_physical_address); unsigned rsdt_pa_offset = (char *)&rsdp->rsdt_physical_address - rsdp_table->data; bios_linker_loader_alloc(linker, ACPI_BUILD_RSDP_FILE, rsdp_table, 16, true /* fseg memory */); memcpy(&rsdp->signature, "RSD PTR ", sizeof(rsdp->signature)); memcpy(rsdp->oem_id, ACPI_BUILD_APPNAME6, sizeof(rsdp->oem_id)); rsdp->length = cpu_to_le32(sizeof(*rsdp)); rsdp->revision = 0x02; /* Address to be filled by Guest linker */ bios_linker_loader_add_pointer(linker, ACPI_BUILD_RSDP_FILE, rsdt_pa_offset, rsdt_pa_size, ACPI_BUILD_TABLE_FILE, rsdt_tbl_offset); rsdp->checksum = 0; /* Checksum to be filled by Guest linker */ bios_linker_loader_add_checksum(linker, ACPI_BUILD_RSDP_FILE, rsdp, sizeof *rsdp, &rsdp->checksum); return rsdp_table; }
build_rsdp(GArray *rsdp_table, BIOSLinker *linker, unsigned rsdt_tbl_offset) { AcpiRsdpDescriptor *rsdp = acpi_data_push(rsdp_table, sizeof *rsdp); unsigned rsdt_pa_size = sizeof(rsdp->rsdt_physical_address); unsigned rsdt_pa_offset = (char *)&rsdp->rsdt_physical_address - rsdp_table->data; bios_linker_loader_alloc(linker, ACPI_BUILD_RSDP_FILE, rsdp_table, 16, true  ); memcpy(&rsdp->signature, "RSD PTR ", sizeof(rsdp->signature)); memcpy(rsdp->oem_id, ACPI_BUILD_APPNAME6, sizeof(rsdp->oem_id)); rsdp->length = cpu_to_le32(sizeof(*rsdp)); rsdp->revision = 0x02;   bios_linker_loader_add_pointer(linker, ACPI_BUILD_RSDP_FILE, rsdt_pa_offset, rsdt_pa_size, ACPI_BUILD_TABLE_FILE, rsdt_tbl_offset); rsdp->checksum = 0;   bios_linker_loader_add_checksum(linker, ACPI_BUILD_RSDP_FILE, rsdp, sizeof *rsdp, &rsdp->checksum); return rsdp_table; }