From 64fa25a0efcadda6e8197e8ea578f6117d01bb4b Mon Sep 17 00:00:00 2001
From: Alex Williamson <alex.williamson@redhat.com>
Date: Fri, 4 Oct 2013 08:51:36 -0600
Subject: [PATCH] vfio-pci: Add dummy PCI ROM write accessor

Just to be sure we don't jump off any NULL pointer cliffs.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Reported-by: Paolo Bonzini <pbonzini@redhat.com>
---
 hw/misc/vfio.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/hw/misc/vfio.c b/hw/misc/vfio.c
index 68e25bd8c3..1fbc40b960 100644
--- a/hw/misc/vfio.c
+++ b/hw/misc/vfio.c
@@ -1128,8 +1128,14 @@ static uint64_t vfio_rom_read(void *opaque, hwaddr addr, unsigned size)
     return val;
 }
 
+static void vfio_rom_write(void *opaque, hwaddr addr,
+                           uint64_t data, unsigned size)
+{
+}
+
 static const MemoryRegionOps vfio_rom_ops = {
     .read = vfio_rom_read,
+    .write = vfio_rom_write,
     .endianness = DEVICE_LITTLE_ENDIAN,
 };