Signed-off-by: Titus Rwantare <titusr@google.com>
---
 hw/i2c/pmbus_device.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/hw/i2c/pmbus_device.c b/hw/i2c/pmbus_device.c
index 93c746bab3..6eeb0731d7 100644
--- a/hw/i2c/pmbus_device.c
+++ b/hw/i2c/pmbus_device.c
@@ -307,6 +307,11 @@ static uint8_t pmbus_receive_byte(SMBusDevice *smd)
 
     case PMBUS_CAPABILITY:
         pmbus_send8(pmdev, pmdev->capability);
+        if (pmdev->capability & BIT(7)) {
+            qemu_log_mask(LOG_GUEST_ERROR,
+                          "%s: PEC is enabled but not yet supported.\n",
+                          __func__);
+        }
         break;
 
     case PMBUS_VOUT_MODE:                 /* R/W byte */
-- 
2.35.1.616.g0bdcbb4464-goog