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tpm: add TPMBackendCmd to hold the request state

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This simplifies a bit locality handling, and argument passing, and
could pave the way to queuing requests (if that makes sense).

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 2017-10-10 00:55:55 +02:00 • committed by Stefan Berger
parent d1fd6b563d
commit 0e43b7e61c
6 changed files with 50 additions and 44 deletions
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16
include/sysemu/tpm_backend.h
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@ -30,7 +30,16 @@
typedef struct TPMBackendClass TPMBackendClass;
typedef struct TPMBackend TPMBackend;
typedef void (TPMRecvDataCB)(TPMState *, bool selftest_done);
typedef void (TPMRecvDataCB)(TPMState *);
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;
@ -76,7 +85,7 @@ struct TPMBackendClass {
void (*opened)(TPMBackend *s, Error **errp);
void (*handle_request)(TPMBackend *s);
void (*handle_request)(TPMBackend *s, TPMBackendCmd *cmd);
};
/**
@ -121,11 +130,12 @@ 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);
void tpm_backend_deliver_request(TPMBackend *s, TPMBackendCmd *cmd);
/**
* tpm_backend_reset: