The rom is used for pxebooting. We don't need to allow pxebooting from
more than one network card. Loading a romfile for every NIC wastes
memory and as a matter of fact breaks configurations with more than 4
NICs as QEMU fails to allocate memory on behalf of the guest.
With this fix, it is possible to assign more than 4 rtl8139 NICs to the
guest.
Signed-off-by: Stefano Stabellini <stefano.stabell...@eu.citrix.com>
diff --git a/tools/libxl/libxl_dm.c b/tools/libxl/libxl_dm.c
index 3e191c3..f907ca9 100644
--- a/tools/libxl/libxl_dm.c
+++ b/tools/libxl/libxl_dm.c
@@ -674,9 +674,10 @@ static char **
libxl__build_device_model_args_new(libxl__gc *gc,
LIBXL_NIC_TYPE_VIF_IOEMU);
flexarray_append(dm_args, "-device");
flexarray_append(dm_args,
- libxl__sprintf(gc, "%s,id=nic%d,netdev=net%d,mac=%s",
+ libxl__sprintf(gc, "%s,id=nic%d,netdev=net%d,mac=%s%s",
nics[i].model, nics[i].devid,
- nics[i].devid, smac));
+ nics[i].devid, smac,
+ i ? ",romfile=\"\"" : ""));
flexarray_append(dm_args, "-netdev");
flexarray_append(dm_args, GCSPRINTF(
"type=tap,id=net%d,ifname=%s,"
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