[Qemu-devel] [PATCH 7/8] hw/arm/stellaris: Correct handling of GPTM TAR register

[Peter Maydell <peter.maydell@linaro.org>]

We don't implement very much of the GPTM TAR register, and what we
do is wrong. The "are we in RT mode?" field is in s->config, not
s->control. Correct this, use LOG_UNIMP rather than hw_error()
for the cases we don't support, and avoid an unlabelled fallthrough
that makes Coverity complain.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 hw/arm/stellaris.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/hw/arm/stellaris.c b/hw/arm/stellaris.c
index d6cc77b..487ee72 100644
--- a/hw/arm/stellaris.c
+++ b/hw/arm/stellaris.c
@@ -185,12 +185,19 @@ static uint64_t gptm_read(void *opaque, hwaddr offset,
     case 0x44: /* TBPMR */
         return s->match_prescale[1];
     case 0x48: /* TAR */
-        if (s->control == 1)
+        if (s->config == 1) {
             return s->rtc;
+        }
+        qemu_log_mask(LOG_UNIMP,
+                      "gptm_read of TAR but timer read not supported");
+        return 0;
     case 0x4c: /* TBR */
-        hw_error("TODO: Timer value read\n");
+        qemu_log_mask(LOG_UNIMP,
+                      "gptm_read of TBR but timer read not supported");
+        return 0;
     default:
-        hw_error("gptm_read: Bad offset 0x%x\n", (int)offset);
+        qemu_log_mask(LOG_GUEST_ERROR,
+                      "gptm_read: Bad offset 0x%x\n", (int)offset);
         return 0;
     }
 }
-- 
1.9.2