diff options
Diffstat (limited to 'include/sysemu/tpm_backend.h')
| -rw-r--r-- | include/sysemu/tpm_backend.h | 216 |
1 files changed, 0 insertions, 216 deletions
diff --git a/include/sysemu/tpm_backend.h b/include/sysemu/tpm_backend.h deleted file mode 100644 index 7fabafe..0000000 --- a/include/sysemu/tpm_backend.h +++ /dev/null @@ -1,216 +0,0 @@ -/* - * QEMU TPM Backend - * - * Copyright IBM, Corp. 2013 - * - * Authors: - * Stefan Berger <stefanb@us.ibm.com> - * - * This work is licensed under the terms of the GNU GPL, version 2 or later. - * See the COPYING file in the top-level directory. - */ - -#ifndef TPM_BACKEND_H -#define TPM_BACKEND_H - -#include "qom/object.h" -#include "qemu/option.h" -#include "sysemu/tpm.h" -#include "qapi/error.h" - -#ifdef CONFIG_TPM - -#define TYPE_TPM_BACKEND "tpm-backend" -OBJECT_DECLARE_TYPE(TPMBackend, TPMBackendClass, - TPM_BACKEND) - - -typedef struct TPMBackendCmd { - uint8_t locty; - const uint8_t *in; - uint32_t in_len; - uint8_t *out; - uint32_t out_len; - bool selftest_done; -} TPMBackendCmd; - -struct TPMBackend { - Object parent; - - /*< protected >*/ - TPMIf *tpmif; - bool opened; - bool had_startup_error; - TPMBackendCmd *cmd; - - /* <public> */ - char *id; - - QLIST_ENTRY(TPMBackend) list; -}; - -struct TPMBackendClass { - ObjectClass parent_class; - - enum TpmType type; - const QemuOptDesc *opts; - /* get a descriptive text of the backend to display to the user */ - const char *desc; - - TPMBackend *(*create)(QemuOpts *opts); - - /* start up the TPM on the backend - optional */ - int (*startup_tpm)(TPMBackend *t, size_t buffersize); - - /* optional */ - void (*reset)(TPMBackend *t); - - void (*cancel_cmd)(TPMBackend *t); - - /* optional */ - bool (*get_tpm_established_flag)(TPMBackend *t); - - /* optional */ - int (*reset_tpm_established_flag)(TPMBackend *t, uint8_t locty); - - TPMVersion (*get_tpm_version)(TPMBackend *t); - - size_t (*get_buffer_size)(TPMBackend *t); - - TpmTypeOptions *(*get_tpm_options)(TPMBackend *t); - - void (*handle_request)(TPMBackend *s, TPMBackendCmd *cmd, Error **errp); -}; - -/** - * tpm_backend_get_type: - * @s: the backend - * - * Returns the TpmType of the backend. - */ -enum TpmType tpm_backend_get_type(TPMBackend *s); - -/** - * tpm_backend_init: - * @s: the backend to initialized - * @tpmif: TPM interface - * @datacb: callback for sending data to frontend - * @errp: a pointer to return the #Error object if an error occurs. - * - * Initialize the backend with the given variables. - * - * Returns 0 on success. - */ -int tpm_backend_init(TPMBackend *s, TPMIf *tpmif, Error **errp); - -/** - * tpm_backend_startup_tpm: - * @s: the backend whose TPM support is to be started - * @buffersize: the buffer size the TPM is supposed to use, - * 0 to leave it as-is - * - * Returns 0 on success. - */ -int tpm_backend_startup_tpm(TPMBackend *s, size_t buffersize); - -/** - * tpm_backend_had_startup_error: - * @s: the backend to query for a startup error - * - * Check whether the backend had an error during startup. Returns - * false if no error occurred and the backend can be used, true - * otherwise. - */ -bool tpm_backend_had_startup_error(TPMBackend *s); - -/** - * tpm_backend_deliver_request: - * @s: the backend to send the request to - * @cmd: the command to deliver - * - * Send a request to the backend. The backend will then send the request - * to the TPM implementation. - */ -void tpm_backend_deliver_request(TPMBackend *s, TPMBackendCmd *cmd); - -/** - * tpm_backend_reset: - * @s: the backend to reset - * - * Reset the backend into a well defined state with all previous errors - * reset. - */ -void tpm_backend_reset(TPMBackend *s); - -/** - * tpm_backend_cancel_cmd: - * @s: the backend - * - * Cancel any ongoing command being processed by the TPM implementation - * on behalf of the QEMU guest. - */ -void tpm_backend_cancel_cmd(TPMBackend *s); - -/** - * tpm_backend_get_tpm_established_flag: - * @s: the backend - * - * Get the TPM establishment flag. This function may be called very - * frequently by the frontend since for example in the TIS implementation - * this flag is part of a register. - */ -bool tpm_backend_get_tpm_established_flag(TPMBackend *s); - -/** - * tpm_backend_reset_tpm_established_flag: - * @s: the backend - * @locty: the locality number - * - * Reset the TPM establishment flag. - */ -int tpm_backend_reset_tpm_established_flag(TPMBackend *s, uint8_t locty); - -/** - * tpm_backend_get_tpm_version: - * @s: the backend to call into - * - * Get the TPM Version that is emulated at the backend. - * - * Returns TPMVersion. - */ -TPMVersion tpm_backend_get_tpm_version(TPMBackend *s); - -/** - * tpm_backend_get_buffer_size: - * @s: the backend to call into - * - * Get the TPM's buffer size. - * - * Returns buffer size. - */ -size_t tpm_backend_get_buffer_size(TPMBackend *s); - -/** - * tpm_backend_finish_sync: - * @s: the backend to call into - * - * Finish the pending command synchronously (this will call aio_poll() - * on qemu main AIOContext until it ends) - */ -void tpm_backend_finish_sync(TPMBackend *s); - -/** - * tpm_backend_query_tpm: - * @s: the backend - * - * Query backend tpm info - * - * Returns newly allocated TPMInfo - */ -TPMInfo *tpm_backend_query_tpm(TPMBackend *s); - -TPMBackend *qemu_find_tpm_be(const char *id); - -#endif /* CONFIG_TPM */ - -#endif /* TPM_BACKEND_H */ |