[SeaBIOS] [PATCH v9 1/6] Add an implementation of a TPM TIS driver
Kevin O'Connor
kevin at koconnor.net
Sat Mar 21 01:59:19 CET 2015
On Fri, Mar 20, 2015 at 02:00:36PM -0400, Stefan Berger wrote:
> From: Stefan Berger <stefann at linux.vnet.ibm.com>
>
> This patch adds an implementation of a TPM TIS driver for the TPM TIS
> emulation supported by QEMU. The driver is broken up into several
> small functions that have to be called in proper sequence. The driver is
> cleanly separated from the rest of the code through an interface holding
> pointers to the driver's functions.
> A client using this driver first probes whether the TPM TIS
> interface is available (probe function) and then invokes the interface
> function to initialze the interface and send requests and receive responses.
[...]
> +struct tpm_driver tpm_drivers[TPM_NUM_DRIVERS] = {
> + [TIS_DRIVER_IDX] =
> + {
> + .timeouts = NULL,
> + .durations = NULL,
> + .set_timeouts = set_timeouts,
> + .probe = tis_probe,
> + .init = tis_init,
> + .activate = tis_activate,
> + .ready = tis_ready,
> + .senddata = tis_senddata,
> + .readresp = tis_readresp,
> + .waitdatavalid = tis_waitdatavalid,
> + .waitrespready = tis_waitrespready,
> + .sha1threshold = 100 * 1024,
> + },
> +};
Can any of the above functions be called after SeaBIOS finishes its
POST phase? If so, I think the function pointers may confuse the
build's detection of runtime vs init only code.
-Kevin
More information about the SeaBIOS
mailing list