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cpu: make cpu_generic_init() abort QEMU on error

Browse source 
Almost every user of cpu_generic_init() checks for
returned NULL and then reports failure in a custom way
and aborts process.
Some users assume that call can't fail and don't check
for failure, though they should have checked for it.

In either cases cpu_generic_init() failure is fatal,
so instead of checking for failure and reporting
it various ways, make cpu_generic_init() report
errors in consistent way and terminate QEMU on failure.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <1505318697-77161-3-git-send-email-imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
This commit is contained in:
Igor Mammedov 2017-09-13 18:04:54 +02:00 committed by Eduardo Habkost
parent 3c72234c98
commit 4482e05cbb
38 changed files with 7 additions and 176 deletions
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4
bsd-user/main.c
View file

@ -902,10 +902,6 @@ int main(int argc, char **argv)
/* NOTE: we need to init the CPU at this stage to get
qemu_host_page_size */
cpu = cpu_init(cpu_model);
if (!cpu) {
fprintf(stderr, "Unable to find CPU definition\n");
exit(1);
}
env = cpu->env_ptr;
#if defined(TARGET_SPARC) || defined(TARGET_PPC)
cpu_reset(cpu);

4
hw/alpha/dp264.c
View file

@ -68,10 +68,6 @@ static void clipper_init(MachineState *machine)
memset(cpus, 0, sizeof(cpus));
for (i = 0; i < smp_cpus; ++i) {
cpus[i] = ALPHA_CPU(cpu_generic_init(TYPE_ALPHA_CPU, cpu_model));
if (!cpus[i]) {
error_report("Unable to find CPU definition");
exit(1);
}
}
cpus[0]->env.trap_arg0 = ram_size;

4
hw/arm/musicpal.c
View file

@ -1594,10 +1594,6 @@ static void musicpal_init(MachineState *machine)
cpu_model = "arm926";
}
cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, cpu_model));
if (!cpu) {
fprintf(stderr, "Unable to find CPU definition\n");
exit(1);
}
/* For now we use a fixed - the original - RAM size */
memory_region_allocate_system_memory(ram, NULL, "musicpal.ram",

4
hw/arm/omap1.c
View file

@ -3864,10 +3864,6 @@ struct omap_mpu_state_s *omap310_mpu_init(MemoryRegion *system_memory,
/* Core */
s->mpu_model = omap310;
s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, core));
if (s->cpu == NULL) {
fprintf(stderr, "Unable to find CPU definition\n");
exit(1);
}
s->sdram_size = sdram_size;
s->sram_size = OMAP15XX_SRAM_SIZE;

4
hw/arm/omap2.c
View file

@ -2262,10 +2262,6 @@ struct omap_mpu_state_s *omap2420_mpu_init(MemoryRegion *sysmem,
/* Core */
s->mpu_model = omap2420;
s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, core ?: "arm1136-r2"));
if (s->cpu == NULL) {
fprintf(stderr, "Unable to find CPU definition\n");
exit(1);
}
s->sdram_size = sdram_size;
s->sram_size = OMAP242X_SRAM_SIZE;

8
hw/arm/pxa2xx.c
View file

@ -2067,10 +2067,6 @@ PXA2xxState *pxa270_init(MemoryRegion *address_space,
revision = "pxa270";
s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, revision));
if (s->cpu == NULL) {
fprintf(stderr, "Unable to find CPU definition\n");
exit(1);
}
s->reset = qemu_allocate_irq(pxa2xx_reset, s, 0);
/* SDRAM & Internal Memory Storage */
@ -2197,10 +2193,6 @@ PXA2xxState *pxa255_init(MemoryRegion *address_space, unsigned int sdram_size)
s = g_new0(PXA2xxState, 1);
s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, "pxa255"));
if (s->cpu == NULL) {
fprintf(stderr, "Unable to find CPU definition\n");
exit(1);
}
s->reset = qemu_allocate_irq(pxa2xx_reset, s, 0);
/* SDRAM & Internal Memory Storage */

5
hw/arm/strongarm.c
View file

@ -1599,11 +1599,6 @@ StrongARMState *sa1110_init(MemoryRegion *sysmem,
s->cpu = ARM_CPU(cpu_generic_init(TYPE_ARM_CPU, rev));
if (!s->cpu) {
error_report("Unable to find CPU definition");
exit(1);
}
memory_region_allocate_system_memory(&s->sdram, NULL, "strongarm.sdram",
sdram_size);
memory_region_add_subregion(sysmem, SA_SDCS0, &s->sdram);

8
hw/lm32/lm32_boards.c
View file

@ -105,10 +105,6 @@ static void lm32_evr_init(MachineState *machine)
cpu_model = "lm32-full";
}
cpu = LM32_CPU(cpu_generic_init(TYPE_LM32_CPU, cpu_model));
if (cpu == NULL) {
fprintf(stderr, "qemu: unable to find CPU '%s'\n", cpu_model);
exit(1);
}
env = &cpu->env;
reset_info->cpu = cpu;
@ -206,10 +202,6 @@ static void lm32_uclinux_init(MachineState *machine)
cpu_model = "lm32-full";
}
cpu = LM32_CPU(cpu_generic_init(TYPE_LM32_CPU, cpu_model));
if (cpu == NULL) {
fprintf(stderr, "qemu: unable to find CPU '%s'\n", cpu_model);
exit(1);
}
env = &cpu->env;
reset_info->cpu = cpu;

4
hw/lm32/milkymist.c
View file

@ -112,10 +112,6 @@ milkymist_init(MachineState *machine)
cpu_model = "lm32-full";
}
cpu = LM32_CPU(cpu_generic_init(TYPE_LM32_CPU, cpu_model));
if (cpu == NULL) {
fprintf(stderr, "qemu: unable to find CPU '%s'\n", cpu_model);
exit(1);
}
env = &cpu->env;
reset_info->cpu = cpu;

4
hw/m68k/an5206.c
View file

@ -43,10 +43,6 @@ static void an5206_init(MachineState *machine)
cpu_model = "m5206";
}
cpu = M68K_CPU(cpu_generic_init(TYPE_M68K_CPU, cpu_model));
if (!cpu) {
error_report("Unable to find m68k CPU definition");
exit(1);
}
env = &cpu->env;
/* Initialize CPU registers. */

4
hw/m68k/mcf5208.c
View file

@ -233,10 +233,6 @@ static void mcf5208evb_init(MachineState *machine)
cpu_model = "m5208";
}
cpu = M68K_CPU(cpu_generic_init(TYPE_M68K_CPU, cpu_model));
if (!cpu) {
fprintf(stderr, "Unable to find m68k CPU definition\n");
exit(1);
}
env = &cpu->env;
/* Initialize CPU registers. */

4
hw/mips/cps.c
View file

@ -72,10 +72,6 @@ static void mips_cps_realize(DeviceState *dev, Error **errp)
for (i = 0; i < s->num_vp; i++) {
cpu = cpu_mips_init(s->cpu_model);
if (cpu == NULL) {
error_setg(errp, "%s: CPU initialization failed", __func__);
return;
}
/* Init internal devices */
cpu_mips_irq_init_cpu(cpu);

4
hw/mips/mips_fulong2e.c
View file

@ -281,10 +281,6 @@ static void mips_fulong2e_init(MachineState *machine)
cpu_model = "Loongson-2E";
}
cpu = cpu_mips_init(cpu_model);
if (cpu == NULL) {
fprintf(stderr, "Unable to find CPU definition\n");
exit(1);
}
env = &cpu->env;
qemu_register_reset(main_cpu_reset, cpu);

4
hw/mips/mips_jazz.c
View file

@ -152,10 +152,6 @@ static void mips_jazz_init(MachineState *machine,
cpu_model = "R4000";
}
cpu = cpu_mips_init(cpu_model);
if (cpu == NULL) {
fprintf(stderr, "Unable to find CPU definition\n");
exit(1);
}
env = &cpu->env;
qemu_register_reset(main_cpu_reset, cpu);

4
hw/mips/mips_malta.c
View file

@ -932,10 +932,6 @@ static void create_cpu_without_cps(const char *cpu_model,
for (i = 0; i < smp_cpus; i++) {
cpu = cpu_mips_init(cpu_model);
if (cpu == NULL) {
fprintf(stderr, "Unable to find CPU definition\n");
exit(1);
}
/* Init internal devices */
cpu_mips_irq_init_cpu(cpu);

4
hw/mips/mips_mipssim.c
View file

@ -164,10 +164,6 @@ mips_mipssim_init(MachineState *machine)
#endif
}
cpu = cpu_mips_init(cpu_model);
if (cpu == NULL) {
fprintf(stderr, "Unable to find CPU definition\n");
exit(1);
}
env = &cpu->env;
reset_info = g_malloc0(sizeof(ResetData));

4
hw/mips/mips_r4k.c
View file

@ -194,10 +194,6 @@ void mips_r4k_init(MachineState *machine)
#endif
}
cpu = cpu_mips_init(cpu_model);
if (cpu == NULL) {
fprintf(stderr, "Unable to find CPU definition\n");
exit(1);
}
env = &cpu->env;
reset_info = g_malloc0(sizeof(ResetData));

4
hw/moxie/moxiesim.c
View file

@ -119,10 +119,6 @@ static void moxiesim_init(MachineState *machine)
cpu_model = "MoxieLite-moxie-cpu";
}
cpu = MOXIE_CPU(cpu_generic_init(TYPE_MOXIE_CPU, cpu_model));
if (!cpu) {
fprintf(stderr, "Unable to find CPU definition\n");
exit(1);
}
env = &cpu->env;
qemu_register_reset(main_cpu_reset, cpu);

4
hw/openrisc/openrisc_sim.c
View file

@ -110,10 +110,6 @@ static void openrisc_sim_init(MachineState *machine)
for (n = 0; n < smp_cpus; n++) {
cpu = OPENRISC_CPU(cpu_generic_init(TYPE_OPENRISC_CPU, cpu_model));
if (cpu == NULL) {
fprintf(stderr, "Unable to find CPU definition!\n");
exit(1);
}
qemu_register_reset(main_cpu_reset, cpu);
main_cpu_reset(cpu);
}

4
hw/ppc/e500.c
View file

@ -817,10 +817,6 @@ void ppce500_init(MachineState *machine, PPCE500Params *params)
cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU,
machine->cpu_model));
if (cpu == NULL) {
fprintf(stderr, "Unable to initialize CPU!\n");
exit(1);
}
env = &cpu->env;
cs = CPU(cpu);

4
hw/ppc/mac_newworld.c
View file

@ -189,10 +189,6 @@ static void ppc_core99_init(MachineState *machine)
for (i = 0; i < smp_cpus; i++) {
cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU,
machine->cpu_model));
if (cpu == NULL) {
fprintf(stderr, "Unable to find PowerPC CPU definition\n");
exit(1);
}
env = &cpu->env;
/* Set time-base frequency to 100 Mhz */

4
hw/ppc/mac_oldworld.c
View file

@ -118,10 +118,6 @@ static void ppc_heathrow_init(MachineState *machine)
for (i = 0; i < smp_cpus; i++) {
cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU,
machine->cpu_model));
if (cpu == NULL) {
fprintf(stderr, "Unable to find PowerPC CPU definition\n");
exit(1);
}
env = &cpu->env;
/* Set time-base frequency to 16.6 Mhz */

4
hw/ppc/ppc440_bamboo.c
View file

@ -187,10 +187,6 @@ static void bamboo_init(MachineState *machine)
machine->cpu_model = "440EP";
}
cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU, machine->cpu_model));
if (cpu == NULL) {
fprintf(stderr, "Unable to initialize CPU!\n");
exit(1);
}
env = &cpu->env;
if (env->mmu_model != POWERPC_MMU_BOOKE) {

5
hw/ppc/ppc4xx_devs.c
View file

@ -57,11 +57,6 @@ PowerPCCPU *ppc4xx_init(const char *cpu_model,
/* init CPUs */
cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU, cpu_model));
if (cpu == NULL) {
fprintf(stderr, "Unable to find PowerPC %s CPU definition\n",
cpu_model);
exit(1);
}
env = &cpu->env;
cpu_clk->cb = NULL; /* We don't care about CPU clock frequency changes */

9
hw/ppc/prep.c
View file

@ -522,10 +522,6 @@ static void ppc_prep_init(MachineState *machine)
for (i = 0; i < smp_cpus; i++) {
cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU,
machine->cpu_model));
if (cpu == NULL) {
fprintf(stderr, "Unable to find PowerPC CPU definition\n");
exit(1);
}
env = &cpu->env;
if (env->flags & POWERPC_FLAG_RTC_CLK) {
@ -726,11 +722,6 @@ static void ibm_40p_init(MachineState *machine)
machine->cpu_model = "604";
}
cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU, machine->cpu_model));
if (!cpu) {
error_report("could not initialize CPU '%s'",
machine->cpu_model);
exit(1);
}
env = &cpu->env;
if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {
error_report("only 6xx bus is supported on this machine");

4
hw/ppc/virtex_ml507.c
View file

@ -97,10 +97,6 @@ static PowerPCCPU *ppc440_init_xilinx(ram_addr_t *ram_size,
qemu_irq *irqs;
cpu = POWERPC_CPU(cpu_generic_init(TYPE_POWERPC_CPU, cpu_model));
if (cpu == NULL) {
fprintf(stderr, "Unable to initialize CPU!\n");
exit(1);
}
env = &cpu->env;
ppc_booke_timers_init(cpu, sysclk, 0/* no flags */);

4
hw/sh4/r2d.c
View file

@ -247,10 +247,6 @@ static void r2d_init(MachineState *machine)
}
cpu = SUPERH_CPU(cpu_generic_init(TYPE_SUPERH_CPU, cpu_model));
if (cpu == NULL) {
fprintf(stderr, "Unable to find CPU definition\n");
exit(1);
}
env = &cpu->env;
reset_info = g_malloc0(sizeof(ResetData));

4
hw/sh4/shix.c
View file

@ -57,10 +57,6 @@ static void shix_init(MachineState *machine)
cpu_model = "any";
cpu = SUPERH_CPU(cpu_generic_init(TYPE_SUPERH_CPU, cpu_model));
if (cpu == NULL) {
fprintf(stderr, "Unable to find CPU definition\n");
exit(1);
}
/* Allocate memory space */
memory_region_init_ram(rom, NULL, "shix.rom", 0x4000, &error_fatal);

4
hw/sparc/leon3.c
View file

@ -127,10 +127,6 @@ static void leon3_generic_hw_init(MachineState *machine)
}
cpu = SPARC_CPU(cpu_generic_init(TYPE_SPARC_CPU, cpu_model));
if (cpu == NULL) {
fprintf(stderr, "qemu: Unable to find Sparc CPU definition\n");
exit(1);
}
env = &cpu->env;
cpu_sparc_set_id(env, 0);

4
hw/sparc/sun4m.c
View file

@ -798,10 +798,6 @@ static void cpu_devinit(const char *cpu_model, unsigned int id,
CPUSPARCState *env;
cpu = SPARC_CPU(cpu_generic_init(TYPE_SPARC_CPU, cpu_model));
if (cpu == NULL) {
fprintf(stderr, "qemu: Unable to find Sparc CPU definition\n");
exit(1);
}
env = &cpu->env;
cpu_sparc_set_id(env, id);

4
hw/sparc64/sparc64.c
View file

@ -354,10 +354,6 @@ SPARCCPU *sparc64_cpu_devinit(const char *cpu_model,
cpu_model = default_cpu_model;
}
cpu = SPARC_CPU(cpu_generic_init(TYPE_SPARC_CPU, cpu_model));
if (cpu == NULL) {
fprintf(stderr, "Unable to find Sparc CPU definition\n");
exit(1);
}
env = &cpu->env;
env->tick = cpu_timer_create("tick", cpu, tick_irq,

4
hw/tricore/tricore_testboard.c
View file

@ -75,10 +75,6 @@ static void tricore_testboard_init(MachineState *machine, int board_id)
machine->cpu_model = "tc1796";
}
cpu = TRICORE_CPU(cpu_generic_init(TYPE_TRICORE_CPU, machine->cpu_model));
if (!cpu) {
error_report("Unable to find CPU definition");
exit(1);
}
env = &cpu->env;
memory_region_init_ram(ext_cram, NULL, "powerlink_ext_c.ram",
2 * 1024 * 1024, &error_fatal);

4
hw/unicore32/puv3.c
View file

@ -128,10 +128,6 @@ static void puv3_init(MachineState *machine)
}
cpu = UNICORE32_CPU(cpu_generic_init(TYPE_UNICORE32_CPU, cpu_model));
if (!cpu) {
error_report("Unable to find CPU definition");
exit(1);
}
env = &cpu->env;
puv3_soc_init(env);

5
hw/xtensa/sim.c
View file

@ -85,11 +85,6 @@ static void xtensa_sim_init(MachineState *machine)
for (n = 0; n < smp_cpus; n++) {
cpu = XTENSA_CPU(cpu_generic_init(TYPE_XTENSA_CPU, cpu_model));
if (cpu == NULL) {
error_report("unable to find CPU definition '%s'",
cpu_model);
exit(EXIT_FAILURE);
}
env = &cpu->env;
env->sregs[PRID] = n;

5
hw/xtensa/xtfpga.c
View file

@ -233,11 +233,6 @@ static void lx_init(const LxBoardDesc *board, MachineState *machine)
for (n = 0; n < smp_cpus; n++) {
cpu = XTENSA_CPU(cpu_generic_init(TYPE_XTENSA_CPU, cpu_model));
if (cpu == NULL) {
error_report("unable to find CPU definition '%s'",
cpu_model);
exit(EXIT_FAILURE);
}
env = &cpu->env;
env->sregs[PRID] = n;

3
include/qom/cpu.h
View file

@ -661,7 +661,8 @@ CPUState *cpu_create(const char *typename);
*
* processes optional parameters and registers them as global properties
*
* Returns: type of CPU to create or %NULL if an error occurred.
* Returns: type of CPU to create or prints error and terminates process
* if an error occurred.
*/
const char *cpu_parse_cpu_model(const char *typename, const char *cpu_model);

4
linux-user/main.c
View file

@ -4323,10 +4323,6 @@ int main(int argc, char **argv, char **envp)
/* NOTE: we need to init the CPU at this stage to get
qemu_host_page_size */
cpu = cpu_init(cpu_model);
if (!cpu) {
fprintf(stderr, "Unable to find CPU definition\n");
exit(EXIT_FAILURE);
}
env = cpu->env_ptr;
cpu_reset(cpu);

19
qom/cpu.c
View file

@ -62,7 +62,7 @@ CPUState *cpu_create(const char *typename)
if (err != NULL) {
error_report_err(err);
object_unref(OBJECT(cpu));
return NULL;
exit(EXIT_FAILURE);
}
return cpu;
}
@ -71,7 +71,6 @@ const char *cpu_parse_cpu_model(const char *typename, const char *cpu_model)
{
ObjectClass *oc;
CPUClass *cc;
Error *err = NULL;
gchar **model_pieces;
const char *cpu_type;
@ -79,18 +78,15 @@ const char *cpu_parse_cpu_model(const char *typename, const char *cpu_model)
oc = cpu_class_by_name(typename, model_pieces[0]);
if (oc == NULL) {
error_report("unable to find CPU model '%s'", model_pieces[0]);
g_strfreev(model_pieces);
return NULL;
exit(EXIT_FAILURE);
}
cpu_type = object_class_get_name(oc);
cc = CPU_CLASS(oc);
cc->parse_features(cpu_type, model_pieces[1], &err);
cc->parse_features(cpu_type, model_pieces[1], &error_fatal);
g_strfreev(model_pieces);
if (err != NULL) {
error_report_err(err);
return NULL;
}
return cpu_type;
}
@ -99,12 +95,7 @@ CPUState *cpu_generic_init(const char *typename, const char *cpu_model)
/* TODO: all callers of cpu_generic_init() need to be converted to
* call cpu_parse_features() only once, before calling cpu_generic_init().
*/
const char *cpu_type = cpu_parse_cpu_model(typename, cpu_model);
if (cpu_type) {
return cpu_create(cpu_type);
}
return NULL;
return cpu_create(cpu_parse_cpu_model(typename, cpu_model));
}
bool cpu_paging_enabled(const CPUState *cpu)