From: Salva Peiró <speir...@gmail.com>
This patch fixes a QEMU SEGFAULT when a write operation is performed on
the memory region of the PCI BAR 3 (base address space).
When a writeb(0xe0000000) is performed the .write function is invoked to
handle the write access, however, since the .write is not initialised,
the call to 0, causes QEMU to SEGFAULT.
Signed-off-by: Salva Peiró <speir...@gmail.com>
Acked-by: Hannes Reinecke <h...@suse.com>
Message-Id: <1437987112-24744-1-git-send-email-speir...@gmail.com>
Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
---
hw/scsi/megasas.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/hw/scsi/megasas.c b/hw/scsi/megasas.c
index 51ba9e0..a04369c 100644
--- a/hw/scsi/megasas.c
+++ b/hw/scsi/megasas.c
@@ -2202,8 +2202,15 @@ static uint64_t megasas_queue_read(void *opaque, hwaddr
addr,
return 0;
}
+static void megasas_queue_write(void *opaque, hwaddr addr,
+ uint64_t val, unsigned size)
+{
+ return;
+}
+
static const MemoryRegionOps megasas_queue_ops = {
.read = megasas_queue_read,
+ .write = megasas_queue_write,
.endianness = DEVICE_LITTLE_ENDIAN,
.impl = {
.min_access_size = 8,
--
2.4.3
