The last user of it was machine type 'none', which used field to create CPU id user requested it on CLI with -cpu option.
We could compare pointers of MachineState::cpu_type and MachineClass::default_cpu_type to check for the same condition, and drop cpu_model concept completly from machine/boards code So that no one would try to reuse obsolete field and only place to deal with cpu model would be vl.c and foo_cpu_class_by_name() callbacks. Signed-off-by: Igor Mammedov <imamm...@redhat.com> --- CC: Eduardo Habkost <ehabk...@redhat.com> CC: Marcel Apfelbaum <mar...@redhat.com> CC: Paolo Bonzini <pbonz...@redhat.com> --- include/hw/boards.h | 1 - hw/core/null-machine.c | 10 +++++++--- vl.c | 8 +++++++- 3 files changed, 14 insertions(+), 5 deletions(-) diff --git a/include/hw/boards.h b/include/hw/boards.h index 156b16f..decd0ec 100644 --- a/include/hw/boards.h +++ b/include/hw/boards.h @@ -246,7 +246,6 @@ struct MachineState { char *kernel_filename; char *kernel_cmdline; char *initrd_filename; - const char *cpu_model; const char *cpu_type; AccelState *accelerator; CPUArchIdList *possible_cpus; diff --git a/hw/core/null-machine.c b/hw/core/null-machine.c index 864832d..c2e466c 100644 --- a/hw/core/null-machine.c +++ b/hw/core/null-machine.c @@ -23,10 +23,13 @@ static void machine_none_init(MachineState *mch) { CPUState *cpu = NULL; + MachineClass *mc = MACHINE_GET_CLASS(mch); - /* Initialize CPU (if a model has been specified) */ - if (mch->cpu_model) { - cpu = cpu_init(mch->cpu_model); + /* Initialize CPU if cpu_type pointer is user provided + * (i.e. != to pointer tot static default cpu type string) + */ + if (mch->cpu_type != mc->default_cpu_type) { + cpu = cpu_create(mch->cpu_type); if (!cpu) { error_report("Unable to initialize CPU"); exit(1); @@ -54,6 +57,7 @@ static void machine_none_machine_init(MachineClass *mc) mc->init = machine_none_init; mc->max_cpus = 1; mc->default_ram_size = 0; + mc->default_cpu_type = TARGET_DEFAULT_CPU_TYPE; } DEFINE_MACHINE("none", machine_none_machine_init) diff --git a/vl.c b/vl.c index 2586f25..8aa0131 100644 --- a/vl.c +++ b/vl.c @@ -4609,7 +4609,6 @@ int main(int argc, char **argv, char **envp) current_machine->maxram_size = maxram_size; current_machine->ram_slots = ram_slots; current_machine->boot_order = boot_order; - current_machine->cpu_model = cpu_model; parse_numa_opts(current_machine); @@ -4619,6 +4618,13 @@ int main(int argc, char **argv, char **envp) if (cpu_model) { current_machine->cpu_type = cpu_parse_cpu_model(machine_class->default_cpu_type, cpu_model); + + /* machine 'none' depends on default cpu type pointer not being + * equal to resolved type name pointer to fugure out if type was + * user provided, make sure that if it becomes not true in future + * it won't beark silently */ + g_assert( + current_machine->cpu_type != machine_class->default_cpu_type); } } -- 2.7.4