xive: Fix setting of remote NVT VSD

Unlike the other remote VSDs, the NVT one needs a valid size field that represents the size of the remote PC BAR. Without this, multi chip machines may checkstop when a processor pool or OS CAM gets attached to a VP on a different chip. Signed-off-by: Benjamin Herrenschmidt <[email protected]> Signed-off-by: Stewart Smith <[email protected]>
open-power · Apr 5, 2017 · dc70177 · dc70177
1 parent 036d2e8
commit dc70177
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/hw/xive.c b/hw/xive.c
@@ -1854,8 +1854,10 @@ static void xive_setup_forward_ports(struct xive *x, struct proc_chip *remote_ch
 
 	/* NVT/VPD points to the remote NVT MMIO sets */
 	if (!xive_set_vsd(x, VST_TSEL_VPDT, remote_id,
-			  base | (uint64_t)remote_xive->pc_base))
+			  base | ((uint64_t)remote_xive->pc_base) |
+			  SETFIELD(VSD_TSIZE, 0ull, ilog2(PC_BAR_SIZE) - 12)))
 		goto error;
+
 	return;
 
  error: