diff mbox

[10/25] spapr: Add /rtas/ibm, change-msix-capable

Message ID 1441254496-16174-11-git-send-email-david@gibson.dropbear.id.au
State New
Headers show

Commit Message

David Gibson Sept. 3, 2015, 4:28 a.m. UTC 
From: Sam Bobroff <sam.bobroff@au1.ibm.com>

QEMU is MSI-X capable and makes it available via ibm,change-msi, so
we should indicate this by adding /rtas/ibm,change-msix-capable to the
device tree.

This is specificed by PAPR.

Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
---
 hw/ppc/spapr.c | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox

Patch

diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index f05f406..de63d06 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -434,6 +434,10 @@  static void *spapr_create_fdt_skel(hwaddr initrd_base,
     _FDT((fdt_property_cell(fdt, "rtas-event-scan-rate",
                             RTAS_EVENT_SCAN_RATE)));
 
+    if (msi_supported) {
+        _FDT((fdt_property(fdt, "ibm,change-msix-capable", NULL, 0)));
+    }
+
     /*
      * According to PAPR, rtas ibm,os-term does not guarantee a return
      * back to the guest cpu.