From b21e6aaf4a1e25c22a603e22ef96b3a31d3013aa Mon Sep 17 00:00:00 2001 From: Stefan Berger Date: Fri, 3 Nov 2017 18:10:01 -0400 Subject: tpm: Move getting TPM buffer size to backends MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Rather than setting the size of the TPM buffer in the front-end, query the backend for the size of the buffer. In this patch we just move the hard-coded buffer size of 4096 to the backends. Signed-off-by: Stefan Berger Reviewed-by: Marc-André Lureau --- include/sysemu/tpm_backend.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'include') diff --git a/include/sysemu/tpm_backend.h b/include/sysemu/tpm_backend.h index 590e8b4..7c98b61 100644 --- a/include/sysemu/tpm_backend.h +++ b/include/sysemu/tpm_backend.h @@ -81,6 +81,8 @@ struct TPMBackendClass { TPMVersion (*get_tpm_version)(TPMBackend *t); + size_t (*get_buffer_size)(TPMBackend *t); + TpmTypeOptions *(*get_tpm_options)(TPMBackend *t); void (*handle_request)(TPMBackend *s, TPMBackendCmd *cmd); @@ -183,6 +185,16 @@ int tpm_backend_reset_tpm_established_flag(TPMBackend *s, uint8_t locty); TPMVersion tpm_backend_get_tpm_version(TPMBackend *s); /** + * tpm_backend_get_buffer_size: + * @s: the backend to call into + * + * Get the TPM's buffer size. + * + * Returns buffer size. + */ +size_t tpm_backend_get_buffer_size(TPMBackend *s); + +/** * tpm_backend_query_tpm: * @s: the backend * -- cgit v1.1