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[5/5] tpm: Support for capability flags of TIS 1.3

Message ID 1418134739-21627-6-git-send-email-stefanb@linux.vnet.ibm.com
State New
Headers show

Commit Message

Stefan Berger Dec. 9, 2014, 2:18 p.m. UTC 
Provide the TIS 1.3 capability flags.
The interface now looks like a TIS 1.3 interface. It's fully
compatible with previous TIS 1.2 and drivers written for
TIS 1.2 continue to work.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
---
 hw/tpm/tpm_tis.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)
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Patch

diff --git a/hw/tpm/tpm_tis.c b/hw/tpm/tpm_tis.c
index 61186c5..d0bb97f 100644
--- a/hw/tpm/tpm_tis.c
+++ b/hw/tpm/tpm_tis.c
@@ -14,7 +14,7 @@ 
  *
  * Implementation of the TIS interface according to specs found at
  * http://www.trustedcomputinggroup.org. This implementation currently
- * supports version 1.21, revision 1.0.
+ * supports version 1.3, 21 March 2013
  * In the developers menu choose the PC Client section then find the TIS
  * specification.
  */
@@ -103,8 +103,15 @@ 
 
 #endif
 
+#define TPM_TIS_CAP_INTERFACE_VERSION1_3 (2 << 28)
+#define TPM_TIS_CAP_DATA_TRANSFER_64B    (3 << 9)
+#define TPM_TIS_CAP_DATA_TRANSFER_LEGACY (0 << 9)
+#define TPM_TIS_CAP_BURST_COUNT_DYNAMIC  (0 << 8)
 #define TPM_TIS_CAP_INTERRUPT_LOW_LEVEL  (1 << 4) /* support is mandatory */
 #define TPM_TIS_CAPABILITIES_SUPPORTED   (TPM_TIS_CAP_INTERRUPT_LOW_LEVEL | \
+                                          TPM_TIS_CAP_BURST_COUNT_DYNAMIC | \
+                                          TPM_TIS_CAP_DATA_TRANSFER_64B | \
+                                          TPM_TIS_CAP_INTERFACE_VERSION1_3 | \
                                           TPM_TIS_INTERRUPTS_SUPPORTED)
 
 #define TPM_TIS_TPM_DID       0x0001