diff mbox series

[PULL,v1,1/4] tpm: CRB: Set tpmRegValidSts flag to '1' in device reset

Message ID 1521634071-16519-2-git-send-email-stefanb@linux.vnet.ibm.com
State New
Headers show
Series [PULL,v1,1/4] tpm: CRB: Set tpmRegValidSts flag to '1' in device reset | expand

Commit Message

Stefan Berger March 21, 2018, 12:07 p.m. UTC 
Fix the initialization of the tpmRegValidSts flag and set it to '1'
during device reset without expecting a write to another register.
This seems to also be the default behavior of real hardware.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
---
 hw/tpm/tpm_crb.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/hw/tpm/tpm_crb.c b/hw/tpm/tpm_crb.c
index d8917cb..114b66e 100644
--- a/hw/tpm/tpm_crb.c
+++ b/hw/tpm/tpm_crb.c
@@ -145,8 +145,6 @@  static void tpm_crb_mmio_write(void *opaque, hwaddr addr,
                              beenSeized, 0);
             ARRAY_FIELD_DP32(s->regs, CRB_LOC_STATE,
                              locAssigned, 1);
-            ARRAY_FIELD_DP32(s->regs, CRB_LOC_STATE,
-                             tpmRegValidSts, 1);
             break;
         }
         break;
@@ -210,6 +208,8 @@  static void tpm_crb_reset(void *dev)
 
     tpm_backend_reset(s->tpmbe);
 
+    ARRAY_FIELD_DP32(s->regs, CRB_LOC_STATE,
+                     tpmRegValidSts, 1);
     ARRAY_FIELD_DP32(s->regs, CRB_INTF_ID,
                      InterfaceType, CRB_INTF_TYPE_CRB_ACTIVE);
     ARRAY_FIELD_DP32(s->regs, CRB_INTF_ID,