Index: usr.sbin/bhyve/pci_nvme.c
===================================================================
--- usr.sbin/bhyve/pci_nvme.c
+++ usr.sbin/bhyve/pci_nvme.c
@@ -476,7 +476,7 @@
 	    (1 << NVME_CTRLR_DATA_FRMW_NUM_SLOTS_SHIFT);
 	cd->lpa = 0;	/* TODO: support some simple things like SMART */
 	cd->elpe = 0;	/* max error log page entries */
-	cd->npss = 1;	/* number of power states support */
+	cd->npss = 0;	/* number of power states support, a zero-based value */
 
 	/* Warning Composite Temperature Threshold */
 	cd->wctemp = 0x0157;
@@ -502,7 +502,8 @@
 
 	cd->fna = 0x03;
 
-	cd->power_state[0].mp = 10;
+	cd->power_state[0].mp = 1000; /* 10.00 watt */
+	cd->power_state[0].mps_nops = 0;
 }
 
 /*