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 --- hw/tpm/tpm_passthrough.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'hw/tpm/tpm_passthrough.c') diff --git a/hw/tpm/tpm_passthrough.c b/hw/tpm/tpm_passthrough.c index 73554aa792..daac67d44a 100644 --- a/hw/tpm/tpm_passthrough.c +++ b/hw/tpm/tpm_passthrough.c @@ -199,6 +199,11 @@ static TPMVersion tpm_passthrough_get_tpm_version(TPMBackend *tb) return tpm_pt->tpm_version; } +static size_t tpm_passthrough_get_buffer_size(TPMBackend *tb) +{ + return 4096; +} + /* * Unless path or file descriptor set has been provided by user, * determine the sysfs cancel file following kernel documentation @@ -354,6 +359,7 @@ static void tpm_passthrough_class_init(ObjectClass *klass, void *data) tbc->reset_tpm_established_flag = tpm_passthrough_reset_tpm_established_flag; tbc->get_tpm_version = tpm_passthrough_get_tpm_version; + tbc->get_buffer_size = tpm_passthrough_get_buffer_size; tbc->get_tpm_options = tpm_passthrough_get_tpm_options; tbc->handle_request = tpm_passthrough_handle_request; } -- cgit v1.2.3