[Qemu-devel] [PULL 07/24] edu: mmio: allow 64-bit access in read dispatch

[Paolo Bonzini]

From: Li Qiang <address@hidden>

The edu spec says when address >= 0x80, the MMIO area can
be accessed by 64-bit.

Signed-off-by: Li Qiang <address@hidden>
Reviewed-by: Philippe Mathieu-Daude <address@hidden>
Message-Id: <address@hidden>
Signed-off-by: Paolo Bonzini <address@hidden>
---
 hw/misc/edu.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/hw/misc/edu.c b/hw/misc/edu.c
index 65fc32b..33de051 100644
--- a/hw/misc/edu.c
+++ b/hw/misc/edu.c
@@ -185,7 +185,11 @@ static uint64_t edu_mmio_read(void *opaque, hwaddr addr, 
unsigned size)
     EduState *edu = opaque;
     uint64_t val = ~0ULL;
 
-    if (size != 4) {
+    if (addr < 0x80 && size != 4) {
+        return val;
+    }
+
+    if (addr >= 0x80 && size != 4 && size != 8) {
         return val;
     }
 
-- 
1.8.3.1