| Message ID | 20201021144716.1536388-1-ehabkost@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v3] pc: Implement -no-hpet as sugar for -machine hpet=on | expand |
On 21/10/20 16:47, Eduardo Habkost wrote: > Get rid of yet another global variable. > > The default will be hpet=on only if CONFIG_HPET=y. > > Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> > --- > Changes v2 -> v3: > * Revert v2 changes (use "hpet" property), plus: > * Default to hpet=off if CONFIG_HPET=n > * Error out if creation of HPET device fails and hpet=on > > 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=n > * 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; > > /* 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); > > -/* 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 *pcms, > * 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 latter. > */ > - if (!no_hpet && (!kvm_irqchip_in_kernel() || kvm_has_pit_state2())) { > + if (pcms->hpet_enabled && (!kvm_irqchip_in_kernel() || > + kvm_has_pit_state2())) { > hpet = 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 = 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 = 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); > > - for (i = 0; i < GSI_NUM_PINS; i++) { > - sysbus_connect_irq(SYS_BUS_DEVICE(hpet), i, gsi[i]); > - } > - pit_isa_irq = -1; > - pit_alt_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_PIT_INT); > - rtc_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_RTC_INT); > + for (i = 0; i < GSI_NUM_PINS; i++) { > + sysbus_connect_irq(SYS_BUS_DEVICE(hpet), i, gsi[i]); > } > + pit_isa_irq = -1; > + pit_alt_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_PIT_INT); > + rtc_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_RTC_INT); > } > *rtc_state = mc146818_rtc_init(isa_bus, 2000, rtc_irq); > > @@ -1535,6 +1538,20 @@ static void pc_machine_set_pit(Object *obj, bool value, Error **errp) > pcms->pit_enabled = value; > } > > +static bool pc_machine_get_hpet(Object *obj, Error **errp) > +{ > + PCMachineState *pcms = PC_MACHINE(obj); > + > + return pcms->hpet_enabled; > +} > + > +static void pc_machine_set_hpet(Object *obj, bool value, Error **errp) > +{ > + PCMachineState *pcms = PC_MACHINE(obj); > + > + pcms->hpet_enabled = 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 = true; > pcms->sata_enabled = true; > pcms->pit_enabled = true; > +#ifdef CONFIG_HPET > + pcms->hpet_enabled = true; > +#endif > > pc_system_flash_create(pcms); > pcms->pcspk = isa_new(TYPE_PC_SPEAKER); > @@ -1705,6 +1725,9 @@ static void pc_machine_class_init(ObjectClass *oc, void *data) > > 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); > } > > static const TypeInfo pc_machine_info = { > 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 = NULL; > isa_bus = isa_bus_new(NULL, get_system_memory(), system_io, > &error_abort); > - no_hpet = 1; > + pcms->hpet_enabled = false; > } > isa_bus_irqs(isa_bus, x86ms->gsi); > > 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 = 0; > int singlestep = 0; > -int no_hpet = 0; > int fd_bootchk = 1; > static int no_reboot; > int no_shutdown = 0; > @@ -3562,7 +3561,8 @@ void qemu_init(int argc, char **argv, char **envp) > qemu_opts_parse_noisily(olist, "acpi=off", false); > break; > case QEMU_OPTION_no_hpet: > - no_hpet = 1; > + olist = qemu_find_opts("machine"); > + qemu_opts_parse_noisily(olist, "hpet=off", false); > break; > case QEMU_OPTION_no_reboot: > no_reboot = 1; > Acked-by: Paolo Bonzini <pbonzini@redhat.com> Thanks! Paolo
On Wed, Oct 21, 2020 at 05:28:24PM +0200, Paolo Bonzini wrote: > On 21/10/20 16:47, Eduardo Habkost wrote: > > Get rid of yet another global variable. > > > > The default will be hpet=on only if CONFIG_HPET=y. > > > > Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> > > --- > > Changes v2 -> v3: > > * Revert v2 changes (use "hpet" property), plus: > > * Default to hpet=off if CONFIG_HPET=n > > * Error out if creation of HPET device fails and hpet=on > > > > 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=n > > * 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; > > > > /* 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); > > > > -/* 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 *pcms, > > * 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 latter. > > */ > > - if (!no_hpet && (!kvm_irqchip_in_kernel() || kvm_has_pit_state2())) { > > + if (pcms->hpet_enabled && (!kvm_irqchip_in_kernel() || > > + kvm_has_pit_state2())) { > > hpet = 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 = 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 = 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); > > > > - for (i = 0; i < GSI_NUM_PINS; i++) { > > - sysbus_connect_irq(SYS_BUS_DEVICE(hpet), i, gsi[i]); > > - } > > - pit_isa_irq = -1; > > - pit_alt_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_PIT_INT); > > - rtc_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_RTC_INT); > > + for (i = 0; i < GSI_NUM_PINS; i++) { > > + sysbus_connect_irq(SYS_BUS_DEVICE(hpet), i, gsi[i]); > > } > > + pit_isa_irq = -1; > > + pit_alt_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_PIT_INT); > > + rtc_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_RTC_INT); > > } > > *rtc_state = mc146818_rtc_init(isa_bus, 2000, rtc_irq); > > > > @@ -1535,6 +1538,20 @@ static void pc_machine_set_pit(Object *obj, bool value, Error **errp) > > pcms->pit_enabled = value; > > } > > > > +static bool pc_machine_get_hpet(Object *obj, Error **errp) > > +{ > > + PCMachineState *pcms = PC_MACHINE(obj); > > + > > + return pcms->hpet_enabled; > > +} > > + > > +static void pc_machine_set_hpet(Object *obj, bool value, Error **errp) > > +{ > > + PCMachineState *pcms = PC_MACHINE(obj); > > + > > + pcms->hpet_enabled = 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 = true; > > pcms->sata_enabled = true; > > pcms->pit_enabled = true; > > +#ifdef CONFIG_HPET > > + pcms->hpet_enabled = true; > > +#endif > > > > pc_system_flash_create(pcms); > > pcms->pcspk = isa_new(TYPE_PC_SPEAKER); > > @@ -1705,6 +1725,9 @@ static void pc_machine_class_init(ObjectClass *oc, void *data) > > > > 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); > > } > > > > static const TypeInfo pc_machine_info = { > > 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 = NULL; > > isa_bus = isa_bus_new(NULL, get_system_memory(), system_io, > > &error_abort); > > - no_hpet = 1; > > + pcms->hpet_enabled = false; > > } > > isa_bus_irqs(isa_bus, x86ms->gsi); > > > > 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 = 0; > > int singlestep = 0; > > -int no_hpet = 0; > > int fd_bootchk = 1; > > static int no_reboot; > > int no_shutdown = 0; > > @@ -3562,7 +3561,8 @@ void qemu_init(int argc, char **argv, char **envp) > > qemu_opts_parse_noisily(olist, "acpi=off", false); > > break; > > case QEMU_OPTION_no_hpet: > > - no_hpet = 1; > > + olist = qemu_find_opts("machine"); > > + qemu_opts_parse_noisily(olist, "hpet=off", false); > > break; > > case QEMU_OPTION_no_reboot: > > no_reboot = 1; > > > > Acked-by: Paolo Bonzini <pbonzini@redhat.com> > > Thanks! > > Paolo Reviewed-by: Michael S. Tsirkin <mst@redhat.com> I will queue this, thanks!
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; /* 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); -/* 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 *pcms, * 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 latter. */ - if (!no_hpet && (!kvm_irqchip_in_kernel() || kvm_has_pit_state2())) { + if (pcms->hpet_enabled && (!kvm_irqchip_in_kernel() || + kvm_has_pit_state2())) { hpet = 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 = 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 = 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); - for (i = 0; i < GSI_NUM_PINS; i++) { - sysbus_connect_irq(SYS_BUS_DEVICE(hpet), i, gsi[i]); - } - pit_isa_irq = -1; - pit_alt_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_PIT_INT); - rtc_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_RTC_INT); + for (i = 0; i < GSI_NUM_PINS; i++) { + sysbus_connect_irq(SYS_BUS_DEVICE(hpet), i, gsi[i]); } + pit_isa_irq = -1; + pit_alt_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_PIT_INT); + rtc_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_RTC_INT); } *rtc_state = mc146818_rtc_init(isa_bus, 2000, rtc_irq); @@ -1535,6 +1538,20 @@ static void pc_machine_set_pit(Object *obj, bool value, Error **errp) pcms->pit_enabled = value; } +static bool pc_machine_get_hpet(Object *obj, Error **errp) +{ + PCMachineState *pcms = PC_MACHINE(obj); + + return pcms->hpet_enabled; +} + +static void pc_machine_set_hpet(Object *obj, bool value, Error **errp) +{ + PCMachineState *pcms = PC_MACHINE(obj); + + pcms->hpet_enabled = 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 = true; pcms->sata_enabled = true; pcms->pit_enabled = true; +#ifdef CONFIG_HPET + pcms->hpet_enabled = true; +#endif pc_system_flash_create(pcms); pcms->pcspk = isa_new(TYPE_PC_SPEAKER); @@ -1705,6 +1725,9 @@ static void pc_machine_class_init(ObjectClass *oc, void *data) 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); } static const TypeInfo pc_machine_info = { 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 = NULL; isa_bus = isa_bus_new(NULL, get_system_memory(), system_io, &error_abort); - no_hpet = 1; + pcms->hpet_enabled = false; } isa_bus_irqs(isa_bus, x86ms->gsi); 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 = 0; int singlestep = 0; -int no_hpet = 0; int fd_bootchk = 1; static int no_reboot; int no_shutdown = 0; @@ -3562,7 +3561,8 @@ void qemu_init(int argc, char **argv, char **envp) qemu_opts_parse_noisily(olist, "acpi=off", false); break; case QEMU_OPTION_no_hpet: - no_hpet = 1; + olist = qemu_find_opts("machine"); + qemu_opts_parse_noisily(olist, "hpet=off", false); break; case QEMU_OPTION_no_reboot: no_reboot = 1;
Get rid of yet another global variable. The default will be hpet=on only if CONFIG_HPET=y. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> --- Changes v2 -> v3: * Revert v2 changes (use "hpet" property), plus: * Default to hpet=off if CONFIG_HPET=n * Error out if creation of HPET device fails and hpet=on 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=n * 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(-)