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tpm-backend: store TPMIf interface, improve backend_init()

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Store the TPM interface, the actual object may be different from
TPMState. Keep a reference on the interface, and check the backend
wasn't already initialized.

Signed-off-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:
Marc-André Lureau 2017-11-06 19:39:00 +01:00 • committed by Stefan Berger
parent 67af320cd6
commit 8a89c9ac15
6 changed files with 18 additions and 11 deletions
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6
include/sysemu/tpm_backend.h
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@ -43,8 +43,8 @@ struct TPMBackend {
Object parent;
/*< protected >*/
TPMIf *tpmif;
bool opened;
TPMState *tpm_state;
GThreadPool *thread_pool;
bool had_startup_error;
@ -96,14 +96,14 @@ enum TpmType tpm_backend_get_type(TPMBackend *s);
/**
* tpm_backend_init:
* @s: the backend to initialized
* @state: TPMState
* @tpmif: TPM interface
* @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);
int tpm_backend_init(TPMBackend *s, TPMIf *tpmif);
/**
* tpm_backend_startup_tpm: