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tpm-backend: Move thread handling inside TPMBackend

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Move thread handling inside TPMBackend, this way backend implementations need
not to maintain their own thread life cycle, instead they needs to implement
'handle_request()' class method that always been called from a thread.

This change made tpm_backend_int.h kind of useless, hence removed it.

Signed-off-by: Amarnath Valluri <amarnath.valluri@intel.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
This commit is contained in:
Amarnath Valluri 2017-09-29 14:10:14 +03:00 • committed by Stefan Berger
parent fb4b0c6765
commit b19a5eea5a
4 changed files with 68 additions and 127 deletions
Download patch file Download diff file Expand all files Collapse all files

32
include/sysemu/tpm_backend.h
View file

@ -29,22 +29,24 @@
typedef struct TPMBackendClass TPMBackendClass;
typedef struct TPMBackend TPMBackend;
typedef struct TPMDriverOps TPMDriverOps;
typedef void (TPMRecvDataCB)(TPMState *, uint8_t locty, bool selftest_done);
struct TPMBackendClass {
ObjectClass parent_class;
const TPMDriverOps *ops;
void (*opened)(TPMBackend *s, Error **errp);
};
typedef enum TPMBackendCmd {
TPM_BACKEND_CMD_INIT = 1,
TPM_BACKEND_CMD_PROCESS_CMD,
TPM_BACKEND_CMD_END,
TPM_BACKEND_CMD_TPM_RESET,
} TPMBackendCmd;
struct TPMBackend {
Object parent;
/*< protected >*/
bool opened;
TPMState *tpm_state;
GThreadPool *thread_pool;
TPMRecvDataCB *recv_data_callback;
char *id;
enum TpmModel fe_model;
@ -54,7 +56,15 @@ struct TPMBackend {
QLIST_ENTRY(TPMBackend) list;
};
typedef void (TPMRecvDataCB)(TPMState *, uint8_t locty, bool selftest_done);
struct TPMBackendClass {
ObjectClass parent_class;
const TPMDriverOps *ops;
void (*opened)(TPMBackend *s, Error **errp);
void (*handle_request)(TPMBackend *s, TPMBackendCmd cmd);
};
typedef struct TPMSizedBuffer {
uint32_t size;
@ -71,7 +81,7 @@ struct TPMDriverOps {
void (*destroy)(TPMBackend *t);
/* initialize the backend */
int (*init)(TPMBackend *t, TPMState *s, TPMRecvDataCB *datacb);
int (*init)(TPMBackend *t);
/* start up the TPM on the backend */
int (*startup_tpm)(TPMBackend *t);
/* returns true if nothing will ever answer TPM requests */
@ -79,8 +89,6 @@ struct TPMDriverOps {
size_t (*realloc_buffer)(TPMSizedBuffer *sb);
void (*deliver_request)(TPMBackend *t);
void (*reset)(TPMBackend *t);
void (*cancel_cmd)(TPMBackend *t);

41
include/sysemu/tpm_backend_int.h
View file

@ -1,41 +0,0 @@
/*
* common TPM backend driver functions
*
* Copyright (c) 2012-2013 IBM Corporation
* Authors:
* Stefan Berger <stefanb@us.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>
*/
#ifndef TPM_BACKEND_INT_H
#define TPM_BACKEND_INT_H
typedef struct TPMBackendThread {
GThreadPool *pool;
} TPMBackendThread;
void tpm_backend_thread_deliver_request(TPMBackendThread *tbt);
void tpm_backend_thread_create(TPMBackendThread *tbt,
GFunc func, gpointer user_data);
void tpm_backend_thread_end(TPMBackendThread *tbt);
typedef enum TPMBackendCmd {
TPM_BACKEND_CMD_INIT = 1,
TPM_BACKEND_CMD_PROCESS_CMD,
TPM_BACKEND_CMD_END,
TPM_BACKEND_CMD_TPM_RESET,
} TPMBackendCmd;
#endif /* TPM_BACKEND_INT_H */