From c45eb53aabaa620c71ac567ddf4ee89802a97a70 Mon Sep 17 00:00:00 2001
From: Li Qiang <liq3ea@163.com>
Date: Fri, 10 May 2019 09:43:48 -0700
Subject: [PATCH] edu: mmio: allow 64-bit access in read dispatch
The edu spec says when address >= 0x80, the MMIO area can
be accessed by 64-bit.
Signed-off-by: Li Qiang <liq3ea@163.com>
Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com>
Message-Id: <20190510164349.81507-3-liq3ea@163.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
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 65fc32b928..33de05141f 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;
}