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Tsirkin" , Markus Armbruster , Paolo Bonzini , John Snow , Richard Henderson Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Get rid of yet another global variable. The default will be hpet=3Don only if CONFIG_HPET=3Dy. Signed-off-by: Eduardo Habkost Acked-by: Paolo Bonzini Reviewed-by: Michael S. Tsirkin --- Changes v2 -> v3: * Revert v2 changes (use "hpet" property), plus: * Default to hpet=3Doff if CONFIG_HPET=3Dn * Error out if creation of HPET device fails and hpet=3Don Changes v1 -> v2: * Rename property to "allow-hpet" to make its semantic clearer, as it won't make sure HPET is created if CONFIG_HPET=3Dn * Use qdev_new(TYPE_HPET) at pc_basic_device_init() --- include/hw/i386/pc.h | 1 + include/hw/i386/x86.h | 3 --- hw/i386/pc.c | 61 +++++++++++++++++++++++++++++-------------- hw/i386/pc_piix.c | 2 +- softmmu/vl.c | 4 +-- 5 files changed, 46 insertions(+), 25 deletions(-) diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h index 84639d0ebc..911e460097 100644 --- a/include/hw/i386/pc.h +++ b/include/hw/i386/pc.h @@ -43,6 +43,7 @@ typedef struct PCMachineState { bool smbus_enabled; bool sata_enabled; bool pit_enabled; + bool hpet_enabled; =20 /* NUMA information: */ uint64_t numa_nodes; diff --git a/include/hw/i386/x86.h b/include/hw/i386/x86.h index d5dcf7a07f..4e66a15ff5 100644 --- a/include/hw/i386/x86.h +++ b/include/hw/i386/x86.h @@ -124,7 +124,4 @@ qemu_irq x86_allocate_cpu_irq(void); void gsi_handler(void *opaque, int n, int level); void ioapic_init_gsi(GSIState *gsi_state, const char *parent_name); =20 -/* hpet.c */ -extern int no_hpet; - #endif diff --git a/hw/i386/pc.c b/hw/i386/pc.c index 4e323755d0..416fb0e0f6 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -1142,28 +1142,31 @@ void pc_basic_device_init(struct PCMachineState *pc= ms, * Without KVM_CAP_PIT_STATE2, we cannot switch off the in-kernel PIT * when the HPET wants to take over. Thus we have to disable the latte= r. */ - if (!no_hpet && (!kvm_irqchip_in_kernel() || kvm_has_pit_state2())) { + if (pcms->hpet_enabled && (!kvm_irqchip_in_kernel() || + kvm_has_pit_state2())) { hpet =3D qdev_try_new(TYPE_HPET); - if (hpet) { - /* For pc-piix-*, hpet's intcap is always IRQ2. For pc-q35-1.7 - * and earlier, use IRQ2 for compat. Otherwise, use IRQ16~23, - * IRQ8 and IRQ2. - */ - uint8_t compat =3D object_property_get_uint(OBJECT(hpet), - HPET_INTCAP, NULL); - if (!compat) { - qdev_prop_set_uint32(hpet, HPET_INTCAP, hpet_irqs); - } - sysbus_realize_and_unref(SYS_BUS_DEVICE(hpet), &error_fatal); - sysbus_mmio_map(SYS_BUS_DEVICE(hpet), 0, HPET_BASE); + if (!hpet) { + error_report("couldn't create HPET device"); + exit(1); + } + /* For pc-piix-*, hpet's intcap is always IRQ2. For pc-q35-1.7 + * and earlier, use IRQ2 for compat. Otherwise, use IRQ16~23, + * IRQ8 and IRQ2. + */ + uint8_t compat =3D object_property_get_uint(OBJECT(hpet), + HPET_INTCAP, NULL); + if (!compat) { + qdev_prop_set_uint32(hpet, HPET_INTCAP, hpet_irqs); + } + sysbus_realize_and_unref(SYS_BUS_DEVICE(hpet), &error_fatal); + sysbus_mmio_map(SYS_BUS_DEVICE(hpet), 0, HPET_BASE); =20 - for (i =3D 0; i < GSI_NUM_PINS; i++) { - sysbus_connect_irq(SYS_BUS_DEVICE(hpet), i, gsi[i]); - } - pit_isa_irq =3D -1; - pit_alt_irq =3D qdev_get_gpio_in(hpet, HPET_LEGACY_PIT_INT); - rtc_irq =3D qdev_get_gpio_in(hpet, HPET_LEGACY_RTC_INT); + for (i =3D 0; i < GSI_NUM_PINS; i++) { + sysbus_connect_irq(SYS_BUS_DEVICE(hpet), i, gsi[i]); } + pit_isa_irq =3D -1; + pit_alt_irq =3D qdev_get_gpio_in(hpet, HPET_LEGACY_PIT_INT); + rtc_irq =3D qdev_get_gpio_in(hpet, HPET_LEGACY_RTC_INT); } *rtc_state =3D mc146818_rtc_init(isa_bus, 2000, rtc_irq); =20 @@ -1535,6 +1538,20 @@ static void pc_machine_set_pit(Object *obj, bool val= ue, Error **errp) pcms->pit_enabled =3D value; } =20 +static bool pc_machine_get_hpet(Object *obj, Error **errp) +{ + PCMachineState *pcms =3D PC_MACHINE(obj); + + return pcms->hpet_enabled; +} + +static void pc_machine_set_hpet(Object *obj, bool value, Error **errp) +{ + PCMachineState *pcms =3D PC_MACHINE(obj); + + pcms->hpet_enabled =3D value; +} + static void pc_machine_get_max_ram_below_4g(Object *obj, Visitor *v, const char *name, void *opaque, Error **errp) @@ -1585,6 +1602,9 @@ static void pc_machine_initfn(Object *obj) pcms->smbus_enabled =3D true; pcms->sata_enabled =3D true; pcms->pit_enabled =3D true; +#ifdef CONFIG_HPET + pcms->hpet_enabled =3D true; +#endif =20 pc_system_flash_create(pcms); pcms->pcspk =3D isa_new(TYPE_PC_SPEAKER); @@ -1705,6 +1725,9 @@ static void pc_machine_class_init(ObjectClass *oc, vo= id *data) =20 object_class_property_add_bool(oc, PC_MACHINE_PIT, pc_machine_get_pit, pc_machine_set_pit); + + object_class_property_add_bool(oc, "hpet", + pc_machine_get_hpet, pc_machine_set_hpet); } =20 static const TypeInfo pc_machine_info =3D { diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c index 0cf22a57ad..13d1628f13 100644 --- a/hw/i386/pc_piix.c +++ b/hw/i386/pc_piix.c @@ -216,7 +216,7 @@ static void pc_init1(MachineState *machine, i440fx_state =3D NULL; isa_bus =3D isa_bus_new(NULL, get_system_memory(), system_io, &error_abort); - no_hpet =3D 1; + pcms->hpet_enabled =3D false; } isa_bus_irqs(isa_bus, x86ms->gsi); =20 diff --git a/softmmu/vl.c b/softmmu/vl.c index cb476aa70b..c2281f45a8 100644 --- a/softmmu/vl.c +++ b/softmmu/vl.c @@ -146,7 +146,6 @@ static Chardev **serial_hds; Chardev *parallel_hds[MAX_PARALLEL_PORTS]; int win2k_install_hack =3D 0; int singlestep =3D 0; -int no_hpet =3D 0; int fd_bootchk =3D 1; static int no_reboot; int no_shutdown =3D 0; @@ -3562,7 +3561,8 @@ void qemu_init(int argc, char **argv, char **envp) qemu_opts_parse_noisily(olist, "acpi=3Doff", false); break; case QEMU_OPTION_no_hpet: - no_hpet =3D 1; + olist =3D qemu_find_opts("machine"); + qemu_opts_parse_noisily(olist, "hpet=3Doff", false); break; case QEMU_OPTION_no_reboot: no_reboot =3D 1; --=20 2.28.0