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Diffstat (limited to 'qemu/include/sysemu/tpm_backend.h')
| -rw-r--r-- | qemu/include/sysemu/tpm_backend.h | 232 |
1 files changed, 0 insertions, 232 deletions
diff --git a/qemu/include/sysemu/tpm_backend.h b/qemu/include/sysemu/tpm_backend.h deleted file mode 100644 index e3ec80020..000000000 --- a/qemu/include/sysemu/tpm_backend.h +++ /dev/null @@ -1,232 +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 _QEMU_TPM_H -#define _QEMU_TPM_H - -#include "qom/object.h" -#include "qemu-common.h" -#include "qapi-types.h" -#include "qemu/option.h" -#include "sysemu/tpm.h" - -#define TYPE_TPM_BACKEND "tpm-backend" -#define TPM_BACKEND(obj) \ - OBJECT_CHECK(TPMBackend, (obj), TYPE_TPM_BACKEND) -#define TPM_BACKEND_GET_CLASS(obj) \ - OBJECT_GET_CLASS(TPMBackendClass, (obj), TYPE_TPM_BACKEND) -#define TPM_BACKEND_CLASS(klass) \ - OBJECT_CLASS_CHECK(TPMBackendClass, (klass), TYPE_TPM_BACKEND) - -typedef struct TPMBackendClass TPMBackendClass; -typedef struct TPMBackend TPMBackend; - -typedef struct TPMDriverOps TPMDriverOps; - -struct TPMBackendClass { - ObjectClass parent_class; - - const TPMDriverOps *ops; - - void (*opened)(TPMBackend *s, Error **errp); -}; - -struct TPMBackend { - Object parent; - - /*< protected >*/ - bool opened; - - char *id; - enum TpmModel fe_model; - char *path; - char *cancel_path; - const TPMDriverOps *ops; - - QLIST_ENTRY(TPMBackend) list; -}; - -typedef void (TPMRecvDataCB)(TPMState *, uint8_t locty, bool selftest_done); - -typedef struct TPMSizedBuffer { - uint32_t size; - uint8_t *buffer; -} TPMSizedBuffer; - -struct TPMDriverOps { - enum TpmType type; - const QemuOptDesc *opts; - /* get a descriptive text of the backend to display to the user */ - const char *(*desc)(void); - - TPMBackend *(*create)(QemuOpts *opts, const char *id); - void (*destroy)(TPMBackend *t); - - /* initialize the backend */ - int (*init)(TPMBackend *t, TPMState *s, TPMRecvDataCB *datacb); - /* start up the TPM on the backend */ - int (*startup_tpm)(TPMBackend *t); - /* returns true if nothing will ever answer TPM requests */ - bool (*had_startup_error)(TPMBackend *t); - - size_t (*realloc_buffer)(TPMSizedBuffer *sb); - - void (*deliver_request)(TPMBackend *t); - - void (*reset)(TPMBackend *t); - - void (*cancel_cmd)(TPMBackend *t); - - bool (*get_tpm_established_flag)(TPMBackend *t); - - int (*reset_tpm_established_flag)(TPMBackend *t, uint8_t locty); - - TPMVersion (*get_tpm_version)(TPMBackend *t); -}; - - -/** - * tpm_backend_get_type: - * @s: the backend - * - * Returns the TpmType of the backend. - */ -enum TpmType tpm_backend_get_type(TPMBackend *s); - -/** - * tpm_backend_get_desc: - * @s: the backend - * - * Returns a human readable description of the backend. - */ -const char *tpm_backend_get_desc(TPMBackend *s); - -/** - * tpm_backend_destroy: - * @s: the backend to destroy - */ -void tpm_backend_destroy(TPMBackend *s); - -/** - * tpm_backend_init: - * @s: the backend to initialized - * @state: TPMState - * @datacb: callback for sending data to frontend - * - * Initialize the backend with the given variables. - * - * Returns 0 on success. - */ -int tpm_backend_init(TPMBackend *s, TPMState *state, - TPMRecvDataCB *datacb); - -/** - * tpm_backend_startup_tpm: - * @s: the backend whose TPM support is to be started - * - * Returns 0 on success. - */ -int tpm_backend_startup_tpm(TPMBackend *s); - -/** - * tpm_backend_had_startup_error: - * @s: the backend to query for a statup 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_realloc_buffer: - * @s: the backend - * @sb: the TPMSizedBuffer to re-allocated to the size suitable for the - * backend. - * - * This function returns the size of the allocated buffer - */ -size_t tpm_backend_realloc_buffer(TPMBackend *s, TPMSizedBuffer *sb); - -/** - * tpm_backend_deliver_request: - * @s: the backend to send the request to - * - * Send a request to the backend. The backend will then send the request - * to the TPM implementation. - */ -void tpm_backend_deliver_request(TPMBackend *s); - -/** - * 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_open: - * @s: the backend to open - * @errp: a pointer to return the #Error object if an error occurs. - * - * This function will open the backend if it is not already open. Calling this - * function on an already opened backend will not result in an error. - */ -void tpm_backend_open(TPMBackend *s, Error **errp); - -/** - * 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); - -TPMBackend *qemu_find_tpm(const char *id); - -const TPMDriverOps *tpm_get_backend_driver(const char *type); -int tpm_register_model(enum TpmModel model); -int tpm_register_driver(const TPMDriverOps *tdo); - -#endif |