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[PULL,v1,2/4] tpm: CRB: set registers to 0 by default

Message ID 1521634071-16519-3-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 
Initialize all registers of the CRB device to 0. This clears a few
flags upon a reset.

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

diff --git a/hw/tpm/tpm_crb.c b/hw/tpm/tpm_crb.c
index 114b66e..4bd76b5 100644
--- a/hw/tpm/tpm_crb.c
+++ b/hw/tpm/tpm_crb.c
@@ -208,6 +208,8 @@  static void tpm_crb_reset(void *dev)
 
     tpm_backend_reset(s->tpmbe);
 
+    memset(s->regs, 0, sizeof(s->regs));
+
     ARRAY_FIELD_DP32(s->regs, CRB_LOC_STATE,
                      tpmRegValidSts, 1);
     ARRAY_FIELD_DP32(s->regs, CRB_INTF_ID,