From: Jason Andryuk <jandryuk@gmail.com>
Date: Thu, 6 May 2021 13:59:17 +0000 (-0400)
Subject: vtpmmgr: Flush all transient keys
X-Git-Tag: archive/raspbian/4.16.0+51-g0941d6cb-1+rpi1~2^2~42^2~544
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=746d20b112ace151b19f06bd5e1fb3d695d8982e;p=xen.git

vtpmmgr: Flush all transient keys

We're only flushing 2 transients, but there are 3 handles.  Use <= to also
flush the third handle since TRANSIENT_LAST is inclusive

The number of transient handles/keys is hardware dependent, so this
should query for the limit.  And assignment of handles is assumed to be
sequential from the minimum.  That may not be guaranteed, but seems okay
with my tpm2.

Signed-off-by: Jason Andryuk <jandryuk@gmail.com>
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Reviewed-by: Daniel P. Smith <dpsmith@apertussolutions.com>
---

diff --git a/stubdom/vtpmmgr/init.c b/stubdom/vtpmmgr/init.c
index 56b4be85b3..4ae34a4fcb 100644
--- a/stubdom/vtpmmgr/init.c
+++ b/stubdom/vtpmmgr/init.c
@@ -656,7 +656,7 @@ static TPM_RC flush_tpm2(void)
 {
     int i;
 
-    for (i = TRANSIENT_FIRST; i < TRANSIENT_LAST; i++)
+    for (i = TRANSIENT_FIRST; i <= TRANSIENT_LAST; i++)
          TPM2_FlushContext(i);
 
     return TPM_SUCCESS;