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authorStefan Berger <stefanb@linux.vnet.ibm.com>2015-05-26 16:51:05 -0400
committerMichael S. Tsirkin <mst@redhat.com>2015-05-31 20:29:02 +0200
commit116694c34aa794a994051fce55bfee418fe1521d (patch)
treea39a2b1c07f50854b990705b347b8e2f2f73a6d9 /backends
parent38d40ff10f71657ea913a63d1f8477be368b92c1 (diff)
Extend TPM TIS interface to support TPM 2
Following the recent upgrade to version 1.3, extend the TPM TIS interface with capabilities introduced for support of a TPM 2. TPM TIS for TPM 2 introduced the following extensions beyond the TPM TIS 1.3 (used for TPM 1.2): - A new 32bit interface Id register was introduced. - New flags for the status (STS) register were defined. - New flags for the capability flags were defined. Support the above if a TPM TIS 1.3 for TPM 2 is used with a TPM 2 on the backend side. Support the old TPM TIS 1.3 configuration if a TPM 1.2 is being used. A subsequent patch will then determine which TPM version is being used in the backend. Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'backends')
-rw-r--r--backends/tpm.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/backends/tpm.c b/backends/tpm.c
index 36c5d46f0a..f3ab3b30bd 100644
--- a/backends/tpm.c
+++ b/backends/tpm.c
@@ -96,6 +96,20 @@ bool tpm_backend_get_tpm_established_flag(TPMBackend *s)
return k->ops->get_tpm_established_flag(s);
}
+int tpm_backend_reset_tpm_established_flag(TPMBackend *s, uint8_t locty)
+{
+ TPMBackendClass *k = TPM_BACKEND_GET_CLASS(s);
+
+ return k->ops->reset_tpm_established_flag(s, locty);
+}
+
+TPMVersion tpm_backend_get_tpm_version(TPMBackend *s)
+{
+ TPMBackendClass *k = TPM_BACKEND_GET_CLASS(s);
+
+ return k->ops->get_tpm_version(s);
+}
+
static bool tpm_backend_prop_get_opened(Object *obj, Error **errp)
{
TPMBackend *s = TPM_BACKEND(obj);