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authorBharata B Rao <bharata@linux.vnet.ibm.com>2016-01-19 10:09:21 +0530
committerTimothy Pearson <tpearson@raptorengineering.com>2019-11-29 19:30:22 -0600
commit9864221550e8df1087bf91d219da4a5e3b7e0536 (patch)
tree1dbb94d30aaaa0ebc9aed49e8de236e671f24cbe
parent66ad57d4abe1119a435c76db8d5e2c7248c181d6 (diff)
downloadhqemu-9864221550e8df1087bf91d219da4a5e3b7e0536.zip
hqemu-9864221550e8df1087bf91d219da4a5e3b7e0536.tar.gz
spapr: Don't create ibm,dynamic-reconfiguration-memory w/o DR LMBs
If guest doesn't have any dynamically reconfigurable (DR) logical memory blocks (LMB), then we shouldn't create ibm,dynamic-reconfiguration-memory device tree node. Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
-rw-r--r--hw/ppc/spapr.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 08da895..0ac6368 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -764,6 +764,13 @@ static int spapr_populate_drconf_memory(sPAPRMachineState *spapr, void *fdt)
int nr_nodes = nb_numa_nodes ? nb_numa_nodes : 1;
/*
+ * Don't create the node if there are no DR LMBs.
+ */
+ if (!nr_lmbs) {
+ return 0;
+ }
+
+ /*
* Allocate enough buffer size to fit in ibm,dynamic-memory
* or ibm,associativity-lookup-arrays
*/
@@ -869,7 +876,7 @@ int spapr_h_cas_compose_response(sPAPRMachineState *spapr,
_FDT((spapr_fixup_cpu_dt(fdt, spapr)));
}
- /* Generate memory nodes or ibm,dynamic-reconfiguration-memory node */
+ /* Generate ibm,dynamic-reconfiguration-memory node if required */
if (memory_update && smc->dr_lmb_enabled) {
_FDT((spapr_populate_drconf_memory(spapr, fdt)));
}
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