[Qemu-devel] [PATCH 2/4] spapr: Add /rtas/ibm,change-msix-capable

[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>
---
 hw/ppc/spapr.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 603f517..6801724 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -543,6 +543,10 @@ static void *spapr_create_fdt_skel(hwaddr initrd_base,
 
     _FDT((fdt_property_cell(fdt, "rtas-error-log-max", RTAS_ERROR_LOG_MAX)));
 
+    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.
-- 
2.1.4