From 3c4e9baacf4d9efc74a5fd17ed42bc6c7fcbfb2f Mon Sep 17 00:00:00 2001 From: Thomas Huth Date: Tue, 27 Feb 2018 12:32:34 +0100 Subject: [PATCH] hw/s390x: Add the possibility to specify the netboot image on the command line The file name of the netboot binary is currently hard-coded to "s390-netboot.img", without a possibility for the user to select an alternative firmware image here. That's unfortunate, especially since the basics are already there: The filename is a property of the s390-ipl device. So we just have to add a check whether the user already provided the property and only set the default if the string is still empty. Now it is possible to select a different firmware image with "-global s390-ipl.netboot_fw=/path/to/s390-netboot.img". Signed-off-by: Thomas Huth Message-Id: <1519731154-3127-1-git-send-email-thuth@redhat.com> Signed-off-by: Cornelia Huck --- hw/s390x/s390-virtio-ccw.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c index 4d0c3deba6..8726b4c281 100644 --- a/hw/s390x/s390-virtio-ccw.c +++ b/hw/s390x/s390-virtio-ccw.c @@ -254,8 +254,10 @@ static void s390_init_ipl_dev(const char *kernel_filename, } qdev_prop_set_string(dev, "cmdline", kernel_cmdline); qdev_prop_set_string(dev, "firmware", firmware); - qdev_prop_set_string(dev, "netboot_fw", netboot_fw); qdev_prop_set_bit(dev, "enforce_bios", enforce_bios); + if (!strlen(object_property_get_str(new, "netboot_fw", &error_abort))) { + qdev_prop_set_string(dev, "netboot_fw", netboot_fw); + } object_property_add_child(qdev_get_machine(), TYPE_S390_IPL, new, NULL); object_unref(new);