[Qemu-ppc] [PATCH 34/77] ppc/xics: An ICS with offset 0 is assumed to be uninitialized

[Benjamin Herrenschmidt]

This will make life easier for dealing with dynamically configured
ICSes such as PHB3

Signed-off-by: Benjamin Herrenschmidt <address@hidden>
---
 include/hw/ppc/xics.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/hw/ppc/xics.h b/include/hw/ppc/xics.h
index 12fc584..51a63cb 100644
--- a/include/hw/ppc/xics.h
+++ b/include/hw/ppc/xics.h
@@ -145,7 +145,7 @@ struct ICSState {
 
 static inline bool ics_valid_irq(ICSState *ics, uint32_t nr)
 {
-    return (nr >= ics->offset)
+    return (ics->offset != 0) && (nr >= ics->offset)
         && (nr < (ics->offset + ics->nr_irqs));
 }
 
-- 
2.5.0