From: Stefan Berger <stefanb@linux.vnet.ibm.com>
Date: Wed, 28 Mar 2018 19:37:44 +0000 (-0400)
Subject: tpm: Request access to locality 0
X-Git-Tag: rel-1.12.0~24
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=d1343e6863dd287ce7d4fcb5169c9cff568f9d1b;p=seabios.git

tpm: Request access to locality 0

The CRB driver has to request access to locality 0. Our QEMU
CRB model will enforce that as well.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
---

diff --git a/src/hw/tpm_drivers.c b/src/hw/tpm_drivers.c
index bd971f7..e4770b3 100644
--- a/src/hw/tpm_drivers.c
+++ b/src/hw/tpm_drivers.c
@@ -442,6 +442,8 @@ static u32 crb_activate(u8 locty)
     if (!CONFIG_TCGBIOS)
         return 0;
 
+    writeb(CRB_REG(locty, CRB_REG_LOC_CTRL), 1);
+
     return 0;
 }