2  *  Emulator TPM driver
44 #include "qapi/qapi-visit-tpm.h"
49 #define TYPE_TPM_EMULATOR "tpm-emulator"
56 /* blobs from the TPM; part of VM state when migrating */
75     uint32_t caps; /* capabilities of the TPM */
96     /* TPM 1.2 error codes */
107     /* TPM 2 error codes */
125 static int tpm_emulator_ctrlcmd(TPMEmulator *tpm, unsigned long cmd, void *msg,  in tpm_emulator_ctrlcmd()  argument
129     CharBackend *dev = &tpm->ctrl_chr;  in tpm_emulator_ctrlcmd()
134     WITH_QEMU_LOCK_GUARD(&tpm->mutex) {  in tpm_emulator_ctrlcmd()
228         error_setg(errp, "tpm-emulator: could not set locality : %s",  in tpm_emulator_set_locality()
235         error_setg(errp, "tpm-emulator: TPM result for set locality : 0x%x",  in tpm_emulator_set_locality()
267         error_report("tpm-emulator: probing failed : %s", strerror(errno));  in tpm_emulator_probe_caps()
281     const char *tpm = NULL;  in tpm_emulator_check_caps()  local
289         tpm = "1.2";  in tpm_emulator_check_caps()
295         tpm = "2";  in tpm_emulator_check_caps()
298         error_report("tpm-emulator: TPM version has not been set");  in tpm_emulator_check_caps()
303         error_report("tpm-emulator: TPM does not implement minimum set of "  in tpm_emulator_check_caps()
304                      "required capabilities for TPM %s (0x%x)", tpm, (int)caps);  in tpm_emulator_check_caps()
318         error_report("tpm-emulator: Could not stop TPM: %s",  in tpm_emulator_stop_tpm()
325         error_report("tpm-emulator: TPM result for CMD_STOP: 0x%x %s", res,  in tpm_emulator_stop_tpm()
347         error_report("tpm-emulator: Could not lock storage within 3 seconds: "  in tpm_emulator_lock_storage()
354         error_report("tpm-emulator: TPM result for CMD_LOCK_STORAGE: 0x%x %s",  in tpm_emulator_lock_storage()
379         error_report("tpm-emulator: Could not set buffer size: %s",  in tpm_emulator_set_buffer_size()
386         error_report("tpm-emulator: TPM result for set buffer size : 0x%x %s",  in tpm_emulator_set_buffer_size()
427         error_report("tpm-emulator: could not send INIT: %s",  in tpm_emulator_startup_tpm_resume()
434         error_report("tpm-emulator: TPM result for CMD_INIT: 0x%x %s", res,  in tpm_emulator_startup_tpm_resume()
446     /* TPM startup will be done from post_load hook */  in tpm_emulator_startup_tpm()
470         error_report("tpm-emulator: Could not get the TPM established flag: %s",  in tpm_emulator_get_tpm_established_flag()
489     /* only a TPM 2.0 will support this */  in tpm_emulator_reset_tpm_established_flag()
499         error_report("tpm-emulator: Could not reset the establishment bit: %s",  in tpm_emulator_reset_tpm_established_flag()
507             "tpm-emulator: TPM result for rest established flag: 0x%x %s",  in tpm_emulator_reset_tpm_established_flag()
530         error_report("tpm-emulator: Could not cancel command: %s",  in tpm_emulator_cancel_cmd()
533         error_report("tpm-emulator: Failed to cancel TPM: 0x%x",  in tpm_emulator_cancel_cmd()
564                    "Migration disabled: TPM emulator does not support "  in tpm_emulator_block_migration()
582         error_report("tpm-emulator: Failed to create socketpair");  in tpm_emulator_prepare_data_fd()
590         error_report("tpm-emulator: Failed to send CMD_SET_DATAFD: %s",  in tpm_emulator_prepare_data_fd()
597         error_prepend(&err, "tpm-emulator: Failed to create io channel: ");  in tpm_emulator_prepare_data_fd()
620         error_report("tpm-emulator: parameter 'chardev' is missing");  in tpm_emulator_handle_device_opts()
626         error_report("tpm-emulator: tpm chardev '%s' not found", value);  in tpm_emulator_handle_device_opts()
631         error_prepend(&err, "tpm-emulator: No valid chardev found at '%s':",  in tpm_emulator_handle_device_opts()
648         error_report("'%s' is not emulating TPM device. Error: %s",  in tpm_emulator_handle_device_opts()
711  * Transfer a TPM state blob from the TPM into a provided buffer.
739         error_report("tpm-emulator: could not get state blob type %d : %s",  in tpm_emulator_get_state_blob()
746         error_report("tpm-emulator: Getting the stateblob (type %d) failed "  in tpm_emulator_get_state_blob()
747                      "with a TPM error 0x%x %s", type, res,  in tpm_emulator_get_state_blob()
755         error_report("tpm-emulator: Expecting to read %u bytes "  in tpm_emulator_get_state_blob()
765             error_report("tpm-emulator: Out of memory allocating %u bytes",  in tpm_emulator_get_state_blob()
772             error_report("tpm-emulator: Could not read stateblob (type %d); "  in tpm_emulator_get_state_blob()
812  * Transfer a TPM state blob to the TPM emulator.
815  * @type: the type of TPM state blob to transfer
816  * @tsb: TPMSizedBuffer containing the TPM state blob
817  * @flags: Flags describing the (encryption) state of the TPM state blob
841         error_report("tpm-emulator: could not set state blob type %d : %s",  in tpm_emulator_set_state_blob()
849         error_report("tpm-emulator: Writing the stateblob (type %d) "  in tpm_emulator_set_state_blob()
859         error_report("tpm-emulator: Reading response from writing stateblob "  in tpm_emulator_set_state_blob()
867         error_report("tpm-emulator: Setting the stateblob (type %d) failed "  in tpm_emulator_set_state_blob()
868                      "with a TPM error 0x%x %s", type, tpm_result,  in tpm_emulator_set_state_blob()
879  * Set all the TPM state blobs.
891         trace_tpm_emulator_set_state_blobs_error("Could not stop TPM");  in tpm_emulator_set_state_blobs()
922     /* get the state blobs from the TPM */  in tpm_emulator_pre_save()
947  * Load the TPM state blobs into the TPM.
969     .name = "tpm-emulator",
1013  * Gracefully shut down the external TPM
1026         error_report("tpm-emulator: Could not cleanly shutdown the TPM: %s",  in tpm_emulator_shutdown()
1029         error_report("tpm-emulator: TPM result for shutdown: 0x%x %s",  in tpm_emulator_shutdown()
1065     tbc->desc = "TPM emulator backend driver";  in tpm_emulator_class_init()