1 files changed, 13 insertions, 0 deletions
diff --git a/hw/ppc/spapr_caps.c b/hw/ppc/spapr_caps.c
index 62663ebdf5..aa605cea91 100644
--- a/hw/ppc/spapr_caps.c
+++ b/hw/ppc/spapr_caps.c
@@ -465,6 +465,19 @@ static sPAPRCapabilities default_caps_with_cpu(sPAPRMachineState *spapr,
         caps.caps[SPAPR_CAP_IBS] = SPAPR_CAP_BROKEN;
     }
 
+    /* This is for pseries-2.12 and older */
+    if (smc->default_caps.caps[SPAPR_CAP_HPT_MAXPAGESIZE] == 0) {
+        uint8_t mps;
+
+        if (kvmppc_hpt_needs_host_contiguous_pages()) {
+            mps = ctz64(qemu_getrampagesize());
+        } else {
+            mps = 34; /* allow everything up to 16GiB, i.e. everything */
+        }
+
+        caps.caps[SPAPR_CAP_HPT_MAXPAGESIZE] = mps;
+    }
+
     return caps;
 }