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authorStefan Berger <stefanb@linux.vnet.ibm.com>2017-11-03 18:10:01 -0400
committerStefan Berger <stefanb@linux.vnet.ibm.com>2017-12-14 23:39:15 -0500
commitb21e6aaf4a1e25c22a603e22ef96b3a31d3013aa (patch)
treef7d9e09aefd608d3edaead9fb13b58162163571e /include/sysemu/tpm_backend.h
parentd3fd953f06700ebe2d15825d4399f7cd3e31af34 (diff)
downloadqemu-b21e6aaf4a1e25c22a603e22ef96b3a31d3013aa.zip
tpm: Move getting TPM buffer size to backends
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 <stefanb@linux.vnet.ibm.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Diffstat (limited to 'include/sysemu/tpm_backend.h')
-rw-r--r--include/sysemu/tpm_backend.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/sysemu/tpm_backend.h b/include/sysemu/tpm_backend.h
index 590e8b42de..7c98b6100d 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
*