spapr: Add /rtas/ibm,change-msix-capable

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>
This commit is contained in:
Sam Bobroff 2015-09-01 11:23:34 +10:00 committed by David Gibson
parent 2c1aaa819a
commit a95f99224c

View File

@ -432,6 +432,10 @@ static void *spapr_create_fdt_skel(hwaddr initrd_base,
_FDT((fdt_property_cell(fdt, "rtas-event-scan-rate", _FDT((fdt_property_cell(fdt, "rtas-event-scan-rate",
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 * According to PAPR, rtas ibm,os-term does not guarantee a return
* back to the guest cpu. * back to the guest cpu.