[Qemu-ppc] [PATCH] spapr/xive: H_INT_ESB is used for LSIs only

[Greg Kurz]

As indicated in the function header, this "hcall is only supported for
LISNs that have the ESB hcall flag set to 1 when returned from hcall()
H_INT_GET_SOURCE_INFO". We only set that flag for LSIs actually.

Check that in h_int_esb().

Signed-off-by: Greg Kurz <address@hidden>
---
 hw/intc/spapr_xive.c |    6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/hw/intc/spapr_xive.c b/hw/intc/spapr_xive.c
index 58c2e5d890bd..01dd47ad5b02 100644
--- a/hw/intc/spapr_xive.c
+++ b/hw/intc/spapr_xive.c
@@ -1408,6 +1408,12 @@ static target_ulong h_int_esb(PowerPCCPU *cpu,
         return H_P2;
     }
 
+    if (!xive_source_irq_is_lsi(xsrc, lisn)) {
+        qemu_log_mask(LOG_GUEST_ERROR, "XIVE: LISN " TARGET_FMT_lx "isn't 
LSI\n",
+                      lisn);
+        return H_P2;
+    }
+
     if (offset > (1ull << xsrc->esb_shift)) {
         return H_P3;
     }