On Fri, Apr 27, 2018 at 08:31:58AM +0200, Markus Armbruster wrote:
> Eduardo Habkost <ehabk...@redhat.com> writes:
>
> > On Thu, Apr 26, 2018 at 05:20:25PM +0200, Thomas Huth wrote:
> >> On 26.04.2018 13:45, Markus Armbruster wrote:
> >> > Thomas Huth <th...@redhat.com> writes:
> >> [...]
> >> >> @@ -260,6 +263,26 @@ static void test_abstract_interfaces(void)
> >> >> qtest_end();
> >> >> }
> >> >>
> >> >> +static void add_machine_test_case(const char *mname)
> >> >> +{
> >> >> + char *path, *args;
> >> >> +
> >> >> + /* Ignore blacklisted machines */
> >> >> + if (g_str_equal("xenfv", mname) || g_str_equal("xenpv", mname)) {
> >> >> + return;
> >> >> + }
> >> >> +
> >> >> + path = g_strdup_printf("device/introspect/concrete-defaults-%s",
> >> >> mname);
> >> >> + args = g_strdup_printf("-machine %s", mname);
> >> >> + qtest_add_data_func(path, args, test_device_intro_concrete);
> >> >
> >> > This runs test_device_intro_concrete() with "-machine M" for all machine
> >> > types M, in SPEED=slow mode.
> >> >
> >> >> + g_free(path);
> >> >> +
> >> >> + path = g_strdup_printf("device/introspect/concrete-nodefaults-%s",
> >> >> mname);
> >> >> + args = g_strdup_printf("-nodefaults -machine %s", mname);
> >> >> + qtest_add_data_func(path, args, test_device_intro_concrete);
> >> >
> >> > This runs test_device_intro_concrete() with "-nodefaults -machine M" for
> >> > all machine types M, in SPEED=slow mode.
> >> >
> >> > Has "without -nodefaults" exposed additional bugs?
> >>
> >> After testing this with all machines, I had to discover that
> >> "-nodefaults" does not work so easily: A lot of the embedded machines
> >> (especially the ARM machines) simply refuse to work with "-nodefaults"
> >> and exit immediately instead. E.g.:
> >>
> >> $ arm-softmmu/qemu-system-arm -nodefaults -nographic -M n810,accel=qtest
> >> qemu-system-arm: missing SecureDigital device
>
> These are all bugs. --nodefaults is supposed to suppress *optional*
> devices, not mandatory ones.
I'm not sure I understand the requirements. What exactly is the
definition of "mandatory"?
A machine created by "qemu-system-x86_64 -machine pc -nodefaults"
is useless because it has no any device to boot from. How is
that different from a n810 machine not booting because there's no
SD device?
--
Eduardo
