When started with other accelerator than Xen, the XenPV machine
fails with a criptic message:
$ qemu-system-x86_64 -M xenpv,accel=kvm
xen be core: can't connect to xenstored
qemu-system-x86_64: xen_init_pv: xen backend core setup failed
By restricting it to Xen, we display a clearer error message:
$ qemu-system-x86_64 -M xenpv,accel=kvm
qemu-system-x86_64: invalid accelerator 'kvm' for machine xenpv
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
hw/xenpv/xen_machine_pv.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/hw/xenpv/xen_machine_pv.c b/hw/xenpv/xen_machine_pv.c
index 8df575a457c..d7747bcec98 100644
--- a/hw/xenpv/xen_machine_pv.c
+++ b/hw/xenpv/xen_machine_pv.c
@@ -86,12 +86,17 @@ static void xen_init_pv(MachineState *machine)
atexit(xen_config_cleanup);
}
+static const char *valid_accels[] = {
+ "xen", NULL
+};
+
static void xenpv_machine_init(MachineClass *mc)
{
mc->desc = "Xen Para-virtualized PC";
mc->init = xen_init_pv;
mc->max_cpus = 1;
mc->default_machine_opts = "accel=xen";
+ mc->valid_accelerators = valid_accels;
}
DEFINE_MACHINE("xenpv", xenpv_machine_init)
--
2.26.2