| Message ID | 4c972421e4a7ad2d7413dd91473c3ae3dc7b6a3c.1689837093.git.lixianglai@loongson.cn (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Adds CPU hot-plug support to Loongarch | expand |
On Thu, 20 Jul 2023 15:15:06 +0800 xianglai li <lixianglai@loongson.cn> wrote: > ACPI GED shall be used to convey to the guest kernel about any cpu hot-(un)plug > events. Therefore, existing ACPI GED framework inside QEMU needs to be enhanced > to support CPU hot-(un)plug state and events. skimmed through, it looks good to me see nit below > Cc: Xiaojuan Yang <yangxiaojuan@loongson.cn> > Cc: Song Gao <gaosong@loongson.cn> > Cc: "Michael S. Tsirkin" <mst@redhat.com> > Cc: Igor Mammedov <imammedo@redhat.com> > Cc: Ani Sinha <anisinha@redhat.com> > Cc: Paolo Bonzini <pbonzini@redhat.com> > Cc: Richard Henderson <richard.henderson@linaro.org> > Cc: Eduardo Habkost <eduardo@habkost.net> > Cc: Marcel Apfelbaum <marcel.apfelbaum@gmail.com> > Cc: "Philippe Mathieu-Daudé" <philmd@linaro.org> > Cc: Yanan Wang <wangyanan55@huawei.com> > Cc: "Daniel P. Berrangé" <berrange@redhat.com> > Cc: Peter Xu <peterx@redhat.com> > Cc: David Hildenbrand <david@redhat.com> > Signed-off-by: xianglai li <lixianglai@loongson.cn> > --- > hw/acpi/acpi-cpu-hotplug-stub.c | 6 +++++ > hw/acpi/cpu.c | 7 ------ > hw/acpi/generic_event_device.c | 33 ++++++++++++++++++++++++++ > include/hw/acpi/cpu_hotplug.h | 10 ++++++++ > include/hw/acpi/generic_event_device.h | 6 +++++ > 5 files changed, 55 insertions(+), 7 deletions(-) > > diff --git a/hw/acpi/acpi-cpu-hotplug-stub.c b/hw/acpi/acpi-cpu-hotplug-stub.c > index 3fc4b14c26..2aec90d968 100644 > --- a/hw/acpi/acpi-cpu-hotplug-stub.c > +++ b/hw/acpi/acpi-cpu-hotplug-stub.c > @@ -24,6 +24,12 @@ void acpi_cpu_ospm_status(CPUHotplugState *cpu_st, ACPIOSTInfoList ***list) > return; > } > > +void cpu_hotplug_hw_init(MemoryRegion *as, Object *owner, > + CPUHotplugState *state, hwaddr base_addr) > +{ > + return; > +} > + > void acpi_cpu_plug_cb(HotplugHandler *hotplug_dev, > CPUHotplugState *cpu_st, DeviceState *dev, Error **errp) > { > diff --git a/hw/acpi/cpu.c b/hw/acpi/cpu.c > index 19c154d78f..6897c8789a 100644 > --- a/hw/acpi/cpu.c > +++ b/hw/acpi/cpu.c > @@ -6,13 +6,6 @@ > #include "trace.h" > #include "sysemu/numa.h" > > -#define ACPI_CPU_HOTPLUG_REG_LEN 12 > -#define ACPI_CPU_SELECTOR_OFFSET_WR 0 > -#define ACPI_CPU_FLAGS_OFFSET_RW 4 > -#define ACPI_CPU_CMD_OFFSET_WR 5 > -#define ACPI_CPU_CMD_DATA_OFFSET_RW 8 > -#define ACPI_CPU_CMD_DATA2_OFFSET_R 0 > - > #define OVMF_CPUHP_SMI_CMD 4 > > enum { > diff --git a/hw/acpi/generic_event_device.c b/hw/acpi/generic_event_device.c > index a3d31631fe..c5a70957b4 100644 > --- a/hw/acpi/generic_event_device.c > +++ b/hw/acpi/generic_event_device.c > @@ -12,6 +12,7 @@ > #include "qemu/osdep.h" > #include "qapi/error.h" > #include "hw/acpi/acpi.h" > +#include "hw/acpi/cpu.h" > #include "hw/acpi/generic_event_device.h" > #include "hw/irq.h" > #include "hw/mem/pc-dimm.h" > @@ -25,6 +26,7 @@ static const uint32_t ged_supported_events[] = { > ACPI_GED_MEM_HOTPLUG_EVT, > ACPI_GED_PWR_DOWN_EVT, > ACPI_GED_NVDIMM_HOTPLUG_EVT, > + ACPI_GED_CPU_HOTPLUG_EVT, > }; > > /* > @@ -117,6 +119,10 @@ void build_ged_aml(Aml *table, const char *name, HotplugHandler *hotplug_dev, > aml_notify(aml_name("\\_SB.NVDR"), > aml_int(0x80))); > break; > + case ACPI_GED_CPU_HOTPLUG_EVT: > + aml_append(if_ctx, aml_call0(ACPI_CPU_CONTAINER "." > + ACPI_CPU_SCAN_METHOD)); > + break; > default: > /* > * Please make sure all the events in ged_supported_events[] > @@ -234,6 +240,8 @@ static void acpi_ged_device_plug_cb(HotplugHandler *hotplug_dev, > } else { > acpi_memory_plug_cb(hotplug_dev, &s->memhp_state, dev, errp); > } > + } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { > + acpi_cpu_plug_cb(hotplug_dev, &s->cpuhp_state, dev, errp); > } else { > error_setg(errp, "virt: device plug request for unsupported device" > " type: %s", object_get_typename(OBJECT(dev))); > @@ -248,6 +256,8 @@ static void acpi_ged_unplug_request_cb(HotplugHandler *hotplug_dev, > if ((object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM) && > !(object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM)))) { > acpi_memory_unplug_request_cb(hotplug_dev, &s->memhp_state, dev, errp); > + } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { > + acpi_cpu_unplug_request_cb(hotplug_dev, &s->cpuhp_state, dev, errp); > } else { > error_setg(errp, "acpi: device unplug request for unsupported device" > " type: %s", object_get_typename(OBJECT(dev))); > @@ -261,6 +271,8 @@ static void acpi_ged_unplug_cb(HotplugHandler *hotplug_dev, > > if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { > acpi_memory_unplug_cb(&s->memhp_state, dev, errp); > + } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { > + acpi_cpu_unplug_cb(&s->cpuhp_state, dev, errp); > } else { > error_setg(errp, "acpi: device unplug for unsupported device" > " type: %s", object_get_typename(OBJECT(dev))); > @@ -272,6 +284,7 @@ static void acpi_ged_ospm_status(AcpiDeviceIf *adev, ACPIOSTInfoList ***list) > AcpiGedState *s = ACPI_GED(adev); > > acpi_memory_ospm_status(&s->memhp_state, list); > + acpi_cpu_ospm_status(&s->cpuhp_state, list); > } > > static void acpi_ged_send_event(AcpiDeviceIf *adev, AcpiEventStatusBits ev) > @@ -286,6 +299,8 @@ static void acpi_ged_send_event(AcpiDeviceIf *adev, AcpiEventStatusBits ev) > sel = ACPI_GED_PWR_DOWN_EVT; > } else if (ev & ACPI_NVDIMM_HOTPLUG_STATUS) { > sel = ACPI_GED_NVDIMM_HOTPLUG_EVT; > + } else if (ev & ACPI_CPU_HOTPLUG_STATUS) { > + sel = ACPI_GED_CPU_HOTPLUG_EVT; > } else { > /* Unknown event. Return without generating interrupt. */ > warn_report("GED: Unsupported event %d. No irq injected", ev); > @@ -318,6 +333,16 @@ static const VMStateDescription vmstate_memhp_state = { > } > }; > > +static const VMStateDescription vmstate_cpuhp_state = { > + .name = "acpi-ged/cpuhp", > + .version_id = 1, > + .minimum_version_id = 1, > + .fields = (VMStateField[]) { > + VMSTATE_CPU_HOTPLUG(cpuhp_state, AcpiGedState), > + VMSTATE_END_OF_LIST() > + } > +}; > + > static const VMStateDescription vmstate_ged_state = { > .name = "acpi-ged-state", > .version_id = 1, > @@ -366,6 +391,7 @@ static const VMStateDescription vmstate_acpi_ged = { > }, > .subsections = (const VMStateDescription * []) { > &vmstate_memhp_state, > + &vmstate_cpuhp_state, > &vmstate_ghes_state, > NULL > } > @@ -400,6 +426,13 @@ static void acpi_ged_initfn(Object *obj) > memory_region_init_io(&ged_st->regs, obj, &ged_regs_ops, ged_st, > TYPE_ACPI_GED "-regs", ACPI_GED_REG_COUNT); > sysbus_init_mmio(sbd, &ged_st->regs); > + > + s->cpuhp.device = OBJECT(s); > + memory_region_init(&s->container_cpuhp, OBJECT(dev), "cpuhp container", > + ACPI_CPU_HOTPLUG_REG_LEN); > + sysbus_init_mmio(SYS_BUS_DEVICE(dev), &s->container_cpuhp); > + cpu_hotplug_hw_init(&s->container_cpuhp, OBJECT(dev), > + &s->cpuhp_state, 0); > } > > static void acpi_ged_class_init(ObjectClass *class, void *data) > diff --git a/include/hw/acpi/cpu_hotplug.h b/include/hw/acpi/cpu_hotplug.h > index 3b932abbbb..afee1ab996 100644 > --- a/include/hw/acpi/cpu_hotplug.h > +++ b/include/hw/acpi/cpu_hotplug.h > @@ -19,6 +19,16 @@ > #include "hw/hotplug.h" > #include "hw/acpi/cpu.h" > > +#define ACPI_CPU_HOTPLUG_REG_LEN 12 > +#define ACPI_CPU_SELECTOR_OFFSET_WR 0 > +#define ACPI_CPU_FLAGS_OFFSET_RW 4 > +#define ACPI_CPU_CMD_OFFSET_WR 5 > +#define ACPI_CPU_CMD_DATA_OFFSET_RW 8 > +#define ACPI_CPU_CMD_DATA2_OFFSET_R 0 > + > +#define ACPI_CPU_SCAN_METHOD "CSCN" > +#define ACPI_CPU_CONTAINER "\\_SB.CPUS" > + > typedef struct AcpiCpuHotplug { > Object *device; > MemoryRegion io; > diff --git a/include/hw/acpi/generic_event_device.h b/include/hw/acpi/generic_event_device.h > index d831bbd889..2923bd9d82 100644 > --- a/include/hw/acpi/generic_event_device.h > +++ b/include/hw/acpi/generic_event_device.h > @@ -60,6 +60,7 @@ > #define HW_ACPI_GENERIC_EVENT_DEVICE_H > > #include "hw/sysbus.h" > +#include "hw/acpi/cpu_hotplug.h" > #include "hw/acpi/memory_hotplug.h" > #include "hw/acpi/ghes.h" > #include "qom/object.h" > @@ -70,6 +71,7 @@ > OBJECT_DECLARE_SIMPLE_TYPE(AcpiGedState, ACPI_GED) > > #define TYPE_ACPI_GED_X86 "acpi-ged-x86" > +#define TYPE_ACPI_GED_LOONGARCH "acpi-ged-loongarch" where is it used? If it's for later patches, it should be in the patch that will actually use it > > #define ACPI_GED_EVT_SEL_OFFSET 0x0 > #define ACPI_GED_EVT_SEL_LEN 0x4 > @@ -97,6 +99,7 @@ OBJECT_DECLARE_SIMPLE_TYPE(AcpiGedState, ACPI_GED) > #define ACPI_GED_MEM_HOTPLUG_EVT 0x1 > #define ACPI_GED_PWR_DOWN_EVT 0x2 > #define ACPI_GED_NVDIMM_HOTPLUG_EVT 0x4 > +#define ACPI_GED_CPU_HOTPLUG_EVT 0x8 > > typedef struct GEDState { > MemoryRegion evt; > @@ -108,6 +111,9 @@ struct AcpiGedState { > SysBusDevice parent_obj; > MemHotplugState memhp_state; > MemoryRegion container_memhp; > + CPUHotplugState cpuhp_state; > + MemoryRegion container_cpuhp; > + AcpiCpuHotplug cpuhp; > GEDState ged_state; > uint32_t ged_event_bitmap; > qemu_irq irq;
Hi, Igor Mammedov : On 7/28/23 7:45 PM, Igor Mammedov wrote: > On Thu, 20 Jul 2023 15:15:06 +0800 > xianglai li <lixianglai@loongson.cn> wrote: > >> ACPI GED shall be used to convey to the guest kernel about any cpu hot-(un)plug >> events. Therefore, existing ACPI GED framework inside QEMU needs to be enhanced >> to support CPU hot-(un)plug state and events. > skimmed through, it looks good to me > > see nit below > >> Cc: Xiaojuan Yang <yangxiaojuan@loongson.cn> >> Cc: Song Gao <gaosong@loongson.cn> >> Cc: "Michael S. Tsirkin" <mst@redhat.com> >> Cc: Igor Mammedov <imammedo@redhat.com> >> Cc: Ani Sinha <anisinha@redhat.com> >> Cc: Paolo Bonzini <pbonzini@redhat.com> >> Cc: Richard Henderson <richard.henderson@linaro.org> >> Cc: Eduardo Habkost <eduardo@habkost.net> >> Cc: Marcel Apfelbaum <marcel.apfelbaum@gmail.com> >> Cc: "Philippe Mathieu-Daudé" <philmd@linaro.org> >> Cc: Yanan Wang <wangyanan55@huawei.com> >> Cc: "Daniel P. Berrangé" <berrange@redhat.com> >> Cc: Peter Xu <peterx@redhat.com> >> Cc: David Hildenbrand <david@redhat.com> >> Signed-off-by: xianglai li <lixianglai@loongson.cn> >> --- >> hw/acpi/acpi-cpu-hotplug-stub.c | 6 +++++ >> hw/acpi/cpu.c | 7 ------ >> hw/acpi/generic_event_device.c | 33 ++++++++++++++++++++++++++ >> include/hw/acpi/cpu_hotplug.h | 10 ++++++++ >> include/hw/acpi/generic_event_device.h | 6 +++++ >> 5 files changed, 55 insertions(+), 7 deletions(-) >> >> diff --git a/hw/acpi/acpi-cpu-hotplug-stub.c b/hw/acpi/acpi-cpu-hotplug-stub.c >> index 3fc4b14c26..2aec90d968 100644 >> --- a/hw/acpi/acpi-cpu-hotplug-stub.c >> +++ b/hw/acpi/acpi-cpu-hotplug-stub.c >> @@ -24,6 +24,12 @@ void acpi_cpu_ospm_status(CPUHotplugState *cpu_st, ACPIOSTInfoList ***list) >> return; >> } >> >> +void cpu_hotplug_hw_init(MemoryRegion *as, Object *owner, >> + CPUHotplugState *state, hwaddr base_addr) >> +{ >> + return; >> +} >> + >> void acpi_cpu_plug_cb(HotplugHandler *hotplug_dev, >> CPUHotplugState *cpu_st, DeviceState *dev, Error **errp) >> { >> diff --git a/hw/acpi/cpu.c b/hw/acpi/cpu.c >> index 19c154d78f..6897c8789a 100644 >> --- a/hw/acpi/cpu.c >> +++ b/hw/acpi/cpu.c >> @@ -6,13 +6,6 @@ >> #include "trace.h" >> #include "sysemu/numa.h" >> >> -#define ACPI_CPU_HOTPLUG_REG_LEN 12 >> -#define ACPI_CPU_SELECTOR_OFFSET_WR 0 >> -#define ACPI_CPU_FLAGS_OFFSET_RW 4 >> -#define ACPI_CPU_CMD_OFFSET_WR 5 >> -#define ACPI_CPU_CMD_DATA_OFFSET_RW 8 >> -#define ACPI_CPU_CMD_DATA2_OFFSET_R 0 >> - >> #define OVMF_CPUHP_SMI_CMD 4 >> >> enum { >> diff --git a/hw/acpi/generic_event_device.c b/hw/acpi/generic_event_device.c >> index a3d31631fe..c5a70957b4 100644 >> --- a/hw/acpi/generic_event_device.c >> +++ b/hw/acpi/generic_event_device.c >> @@ -12,6 +12,7 @@ >> #include "qemu/osdep.h" >> #include "qapi/error.h" >> #include "hw/acpi/acpi.h" >> +#include "hw/acpi/cpu.h" >> #include "hw/acpi/generic_event_device.h" >> #include "hw/irq.h" >> #include "hw/mem/pc-dimm.h" >> @@ -25,6 +26,7 @@ static const uint32_t ged_supported_events[] = { >> ACPI_GED_MEM_HOTPLUG_EVT, >> ACPI_GED_PWR_DOWN_EVT, >> ACPI_GED_NVDIMM_HOTPLUG_EVT, >> + ACPI_GED_CPU_HOTPLUG_EVT, >> }; >> >> /* >> @@ -117,6 +119,10 @@ void build_ged_aml(Aml *table, const char *name, HotplugHandler *hotplug_dev, >> aml_notify(aml_name("\\_SB.NVDR"), >> aml_int(0x80))); >> break; >> + case ACPI_GED_CPU_HOTPLUG_EVT: >> + aml_append(if_ctx, aml_call0(ACPI_CPU_CONTAINER "." >> + ACPI_CPU_SCAN_METHOD)); >> + break; >> default: >> /* >> * Please make sure all the events in ged_supported_events[] >> @@ -234,6 +240,8 @@ static void acpi_ged_device_plug_cb(HotplugHandler *hotplug_dev, >> } else { >> acpi_memory_plug_cb(hotplug_dev, &s->memhp_state, dev, errp); >> } >> + } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { >> + acpi_cpu_plug_cb(hotplug_dev, &s->cpuhp_state, dev, errp); >> } else { >> error_setg(errp, "virt: device plug request for unsupported device" >> " type: %s", object_get_typename(OBJECT(dev))); >> @@ -248,6 +256,8 @@ static void acpi_ged_unplug_request_cb(HotplugHandler *hotplug_dev, >> if ((object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM) && >> !(object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM)))) { >> acpi_memory_unplug_request_cb(hotplug_dev, &s->memhp_state, dev, errp); >> + } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { >> + acpi_cpu_unplug_request_cb(hotplug_dev, &s->cpuhp_state, dev, errp); >> } else { >> error_setg(errp, "acpi: device unplug request for unsupported device" >> " type: %s", object_get_typename(OBJECT(dev))); >> @@ -261,6 +271,8 @@ static void acpi_ged_unplug_cb(HotplugHandler *hotplug_dev, >> >> if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { >> acpi_memory_unplug_cb(&s->memhp_state, dev, errp); >> + } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { >> + acpi_cpu_unplug_cb(&s->cpuhp_state, dev, errp); >> } else { >> error_setg(errp, "acpi: device unplug for unsupported device" >> " type: %s", object_get_typename(OBJECT(dev))); >> @@ -272,6 +284,7 @@ static void acpi_ged_ospm_status(AcpiDeviceIf *adev, ACPIOSTInfoList ***list) >> AcpiGedState *s = ACPI_GED(adev); >> >> acpi_memory_ospm_status(&s->memhp_state, list); >> + acpi_cpu_ospm_status(&s->cpuhp_state, list); >> } >> >> static void acpi_ged_send_event(AcpiDeviceIf *adev, AcpiEventStatusBits ev) >> @@ -286,6 +299,8 @@ static void acpi_ged_send_event(AcpiDeviceIf *adev, AcpiEventStatusBits ev) >> sel = ACPI_GED_PWR_DOWN_EVT; >> } else if (ev & ACPI_NVDIMM_HOTPLUG_STATUS) { >> sel = ACPI_GED_NVDIMM_HOTPLUG_EVT; >> + } else if (ev & ACPI_CPU_HOTPLUG_STATUS) { >> + sel = ACPI_GED_CPU_HOTPLUG_EVT; >> } else { >> /* Unknown event. Return without generating interrupt. */ >> warn_report("GED: Unsupported event %d. No irq injected", ev); >> @@ -318,6 +333,16 @@ static const VMStateDescription vmstate_memhp_state = { >> } >> }; >> >> +static const VMStateDescription vmstate_cpuhp_state = { >> + .name = "acpi-ged/cpuhp", >> + .version_id = 1, >> + .minimum_version_id = 1, >> + .fields = (VMStateField[]) { >> + VMSTATE_CPU_HOTPLUG(cpuhp_state, AcpiGedState), >> + VMSTATE_END_OF_LIST() >> + } >> +}; >> + >> static const VMStateDescription vmstate_ged_state = { >> .name = "acpi-ged-state", >> .version_id = 1, >> @@ -366,6 +391,7 @@ static const VMStateDescription vmstate_acpi_ged = { >> }, >> .subsections = (const VMStateDescription * []) { >> &vmstate_memhp_state, >> + &vmstate_cpuhp_state, >> &vmstate_ghes_state, >> NULL >> } >> @@ -400,6 +426,13 @@ static void acpi_ged_initfn(Object *obj) >> memory_region_init_io(&ged_st->regs, obj, &ged_regs_ops, ged_st, >> TYPE_ACPI_GED "-regs", ACPI_GED_REG_COUNT); >> sysbus_init_mmio(sbd, &ged_st->regs); >> + >> + s->cpuhp.device = OBJECT(s); >> + memory_region_init(&s->container_cpuhp, OBJECT(dev), "cpuhp container", >> + ACPI_CPU_HOTPLUG_REG_LEN); >> + sysbus_init_mmio(SYS_BUS_DEVICE(dev), &s->container_cpuhp); >> + cpu_hotplug_hw_init(&s->container_cpuhp, OBJECT(dev), >> + &s->cpuhp_state, 0); >> } >> >> static void acpi_ged_class_init(ObjectClass *class, void *data) >> diff --git a/include/hw/acpi/cpu_hotplug.h b/include/hw/acpi/cpu_hotplug.h >> index 3b932abbbb..afee1ab996 100644 >> --- a/include/hw/acpi/cpu_hotplug.h >> +++ b/include/hw/acpi/cpu_hotplug.h >> @@ -19,6 +19,16 @@ >> #include "hw/hotplug.h" >> #include "hw/acpi/cpu.h" >> >> +#define ACPI_CPU_HOTPLUG_REG_LEN 12 >> +#define ACPI_CPU_SELECTOR_OFFSET_WR 0 >> +#define ACPI_CPU_FLAGS_OFFSET_RW 4 >> +#define ACPI_CPU_CMD_OFFSET_WR 5 >> +#define ACPI_CPU_CMD_DATA_OFFSET_RW 8 >> +#define ACPI_CPU_CMD_DATA2_OFFSET_R 0 >> + >> +#define ACPI_CPU_SCAN_METHOD "CSCN" >> +#define ACPI_CPU_CONTAINER "\\_SB.CPUS" >> + >> typedef struct AcpiCpuHotplug { >> Object *device; >> MemoryRegion io; >> diff --git a/include/hw/acpi/generic_event_device.h b/include/hw/acpi/generic_event_device.h >> index d831bbd889..2923bd9d82 100644 >> --- a/include/hw/acpi/generic_event_device.h >> +++ b/include/hw/acpi/generic_event_device.h >> @@ -60,6 +60,7 @@ >> #define HW_ACPI_GENERIC_EVENT_DEVICE_H >> >> #include "hw/sysbus.h" >> +#include "hw/acpi/cpu_hotplug.h" >> #include "hw/acpi/memory_hotplug.h" >> #include "hw/acpi/ghes.h" >> #include "qom/object.h" >> @@ -70,6 +71,7 @@ >> OBJECT_DECLARE_SIMPLE_TYPE(AcpiGedState, ACPI_GED) >> >> #define TYPE_ACPI_GED_X86 "acpi-ged-x86" >> +#define TYPE_ACPI_GED_LOONGARCH "acpi-ged-loongarch" > where is it used? > If it's for later patches, it should be in the patch that > will actually use it Yes, it will be used in a later patch, and I will modify its location in the next patch release. > >> >> #define ACPI_GED_EVT_SEL_OFFSET 0x0 >> #define ACPI_GED_EVT_SEL_LEN 0x4 >> @@ -97,6 +99,7 @@ OBJECT_DECLARE_SIMPLE_TYPE(AcpiGedState, ACPI_GED) >> #define ACPI_GED_MEM_HOTPLUG_EVT 0x1 >> #define ACPI_GED_PWR_DOWN_EVT 0x2 >> #define ACPI_GED_NVDIMM_HOTPLUG_EVT 0x4 >> +#define ACPI_GED_CPU_HOTPLUG_EVT 0x8 >> >> typedef struct GEDState { >> MemoryRegion evt; >> @@ -108,6 +111,9 @@ struct AcpiGedState { >> SysBusDevice parent_obj; >> MemHotplugState memhp_state; >> MemoryRegion container_memhp; >> + CPUHotplugState cpuhp_state; >> + MemoryRegion container_cpuhp; >> + AcpiCpuHotplug cpuhp; >> GEDState ged_state; >> uint32_t ged_event_bitmap; >> qemu_irq irq; Thanks. xianglai
diff --git a/hw/acpi/acpi-cpu-hotplug-stub.c b/hw/acpi/acpi-cpu-hotplug-stub.c index 3fc4b14c26..2aec90d968 100644 --- a/hw/acpi/acpi-cpu-hotplug-stub.c +++ b/hw/acpi/acpi-cpu-hotplug-stub.c @@ -24,6 +24,12 @@ void acpi_cpu_ospm_status(CPUHotplugState *cpu_st, ACPIOSTInfoList ***list) return; } +void cpu_hotplug_hw_init(MemoryRegion *as, Object *owner, + CPUHotplugState *state, hwaddr base_addr) +{ + return; +} + void acpi_cpu_plug_cb(HotplugHandler *hotplug_dev, CPUHotplugState *cpu_st, DeviceState *dev, Error **errp) { diff --git a/hw/acpi/cpu.c b/hw/acpi/cpu.c index 19c154d78f..6897c8789a 100644 --- a/hw/acpi/cpu.c +++ b/hw/acpi/cpu.c @@ -6,13 +6,6 @@ #include "trace.h" #include "sysemu/numa.h" -#define ACPI_CPU_HOTPLUG_REG_LEN 12 -#define ACPI_CPU_SELECTOR_OFFSET_WR 0 -#define ACPI_CPU_FLAGS_OFFSET_RW 4 -#define ACPI_CPU_CMD_OFFSET_WR 5 -#define ACPI_CPU_CMD_DATA_OFFSET_RW 8 -#define ACPI_CPU_CMD_DATA2_OFFSET_R 0 - #define OVMF_CPUHP_SMI_CMD 4 enum { diff --git a/hw/acpi/generic_event_device.c b/hw/acpi/generic_event_device.c index a3d31631fe..c5a70957b4 100644 --- a/hw/acpi/generic_event_device.c +++ b/hw/acpi/generic_event_device.c @@ -12,6 +12,7 @@ #include "qemu/osdep.h" #include "qapi/error.h" #include "hw/acpi/acpi.h" +#include "hw/acpi/cpu.h" #include "hw/acpi/generic_event_device.h" #include "hw/irq.h" #include "hw/mem/pc-dimm.h" @@ -25,6 +26,7 @@ static const uint32_t ged_supported_events[] = { ACPI_GED_MEM_HOTPLUG_EVT, ACPI_GED_PWR_DOWN_EVT, ACPI_GED_NVDIMM_HOTPLUG_EVT, + ACPI_GED_CPU_HOTPLUG_EVT, }; /* @@ -117,6 +119,10 @@ void build_ged_aml(Aml *table, const char *name, HotplugHandler *hotplug_dev, aml_notify(aml_name("\\_SB.NVDR"), aml_int(0x80))); break; + case ACPI_GED_CPU_HOTPLUG_EVT: + aml_append(if_ctx, aml_call0(ACPI_CPU_CONTAINER "." + ACPI_CPU_SCAN_METHOD)); + break; default: /* * Please make sure all the events in ged_supported_events[] @@ -234,6 +240,8 @@ static void acpi_ged_device_plug_cb(HotplugHandler *hotplug_dev, } else { acpi_memory_plug_cb(hotplug_dev, &s->memhp_state, dev, errp); } + } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { + acpi_cpu_plug_cb(hotplug_dev, &s->cpuhp_state, dev, errp); } else { error_setg(errp, "virt: device plug request for unsupported device" " type: %s", object_get_typename(OBJECT(dev))); @@ -248,6 +256,8 @@ static void acpi_ged_unplug_request_cb(HotplugHandler *hotplug_dev, if ((object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM) && !(object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM)))) { acpi_memory_unplug_request_cb(hotplug_dev, &s->memhp_state, dev, errp); + } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { + acpi_cpu_unplug_request_cb(hotplug_dev, &s->cpuhp_state, dev, errp); } else { error_setg(errp, "acpi: device unplug request for unsupported device" " type: %s", object_get_typename(OBJECT(dev))); @@ -261,6 +271,8 @@ static void acpi_ged_unplug_cb(HotplugHandler *hotplug_dev, if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { acpi_memory_unplug_cb(&s->memhp_state, dev, errp); + } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { + acpi_cpu_unplug_cb(&s->cpuhp_state, dev, errp); } else { error_setg(errp, "acpi: device unplug for unsupported device" " type: %s", object_get_typename(OBJECT(dev))); @@ -272,6 +284,7 @@ static void acpi_ged_ospm_status(AcpiDeviceIf *adev, ACPIOSTInfoList ***list) AcpiGedState *s = ACPI_GED(adev); acpi_memory_ospm_status(&s->memhp_state, list); + acpi_cpu_ospm_status(&s->cpuhp_state, list); } static void acpi_ged_send_event(AcpiDeviceIf *adev, AcpiEventStatusBits ev) @@ -286,6 +299,8 @@ static void acpi_ged_send_event(AcpiDeviceIf *adev, AcpiEventStatusBits ev) sel = ACPI_GED_PWR_DOWN_EVT; } else if (ev & ACPI_NVDIMM_HOTPLUG_STATUS) { sel = ACPI_GED_NVDIMM_HOTPLUG_EVT; + } else if (ev & ACPI_CPU_HOTPLUG_STATUS) { + sel = ACPI_GED_CPU_HOTPLUG_EVT; } else { /* Unknown event. Return without generating interrupt. */ warn_report("GED: Unsupported event %d. No irq injected", ev); @@ -318,6 +333,16 @@ static const VMStateDescription vmstate_memhp_state = { } }; +static const VMStateDescription vmstate_cpuhp_state = { + .name = "acpi-ged/cpuhp", + .version_id = 1, + .minimum_version_id = 1, + .fields = (VMStateField[]) { + VMSTATE_CPU_HOTPLUG(cpuhp_state, AcpiGedState), + VMSTATE_END_OF_LIST() + } +}; + static const VMStateDescription vmstate_ged_state = { .name = "acpi-ged-state", .version_id = 1, @@ -366,6 +391,7 @@ static const VMStateDescription vmstate_acpi_ged = { }, .subsections = (const VMStateDescription * []) { &vmstate_memhp_state, + &vmstate_cpuhp_state, &vmstate_ghes_state, NULL } @@ -400,6 +426,13 @@ static void acpi_ged_initfn(Object *obj) memory_region_init_io(&ged_st->regs, obj, &ged_regs_ops, ged_st, TYPE_ACPI_GED "-regs", ACPI_GED_REG_COUNT); sysbus_init_mmio(sbd, &ged_st->regs); + + s->cpuhp.device = OBJECT(s); + memory_region_init(&s->container_cpuhp, OBJECT(dev), "cpuhp container", + ACPI_CPU_HOTPLUG_REG_LEN); + sysbus_init_mmio(SYS_BUS_DEVICE(dev), &s->container_cpuhp); + cpu_hotplug_hw_init(&s->container_cpuhp, OBJECT(dev), + &s->cpuhp_state, 0); } static void acpi_ged_class_init(ObjectClass *class, void *data) diff --git a/include/hw/acpi/cpu_hotplug.h b/include/hw/acpi/cpu_hotplug.h index 3b932abbbb..afee1ab996 100644 --- a/include/hw/acpi/cpu_hotplug.h +++ b/include/hw/acpi/cpu_hotplug.h @@ -19,6 +19,16 @@ #include "hw/hotplug.h" #include "hw/acpi/cpu.h" +#define ACPI_CPU_HOTPLUG_REG_LEN 12 +#define ACPI_CPU_SELECTOR_OFFSET_WR 0 +#define ACPI_CPU_FLAGS_OFFSET_RW 4 +#define ACPI_CPU_CMD_OFFSET_WR 5 +#define ACPI_CPU_CMD_DATA_OFFSET_RW 8 +#define ACPI_CPU_CMD_DATA2_OFFSET_R 0 + +#define ACPI_CPU_SCAN_METHOD "CSCN" +#define ACPI_CPU_CONTAINER "\\_SB.CPUS" + typedef struct AcpiCpuHotplug { Object *device; MemoryRegion io; diff --git a/include/hw/acpi/generic_event_device.h b/include/hw/acpi/generic_event_device.h index d831bbd889..2923bd9d82 100644 --- a/include/hw/acpi/generic_event_device.h +++ b/include/hw/acpi/generic_event_device.h @@ -60,6 +60,7 @@ #define HW_ACPI_GENERIC_EVENT_DEVICE_H #include "hw/sysbus.h" +#include "hw/acpi/cpu_hotplug.h" #include "hw/acpi/memory_hotplug.h" #include "hw/acpi/ghes.h" #include "qom/object.h" @@ -70,6 +71,7 @@ OBJECT_DECLARE_SIMPLE_TYPE(AcpiGedState, ACPI_GED) #define TYPE_ACPI_GED_X86 "acpi-ged-x86" +#define TYPE_ACPI_GED_LOONGARCH "acpi-ged-loongarch" #define ACPI_GED_EVT_SEL_OFFSET 0x0 #define ACPI_GED_EVT_SEL_LEN 0x4 @@ -97,6 +99,7 @@ OBJECT_DECLARE_SIMPLE_TYPE(AcpiGedState, ACPI_GED) #define ACPI_GED_MEM_HOTPLUG_EVT 0x1 #define ACPI_GED_PWR_DOWN_EVT 0x2 #define ACPI_GED_NVDIMM_HOTPLUG_EVT 0x4 +#define ACPI_GED_CPU_HOTPLUG_EVT 0x8 typedef struct GEDState { MemoryRegion evt; @@ -108,6 +111,9 @@ struct AcpiGedState { SysBusDevice parent_obj; MemHotplugState memhp_state; MemoryRegion container_memhp; + CPUHotplugState cpuhp_state; + MemoryRegion container_cpuhp; + AcpiCpuHotplug cpuhp; GEDState ged_state; uint32_t ged_event_bitmap; qemu_irq irq;
ACPI GED shall be used to convey to the guest kernel about any cpu hot-(un)plug events. Therefore, existing ACPI GED framework inside QEMU needs to be enhanced to support CPU hot-(un)plug state and events. Cc: Xiaojuan Yang <yangxiaojuan@loongson.cn> Cc: Song Gao <gaosong@loongson.cn> Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: Igor Mammedov <imammedo@redhat.com> Cc: Ani Sinha <anisinha@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Richard Henderson <richard.henderson@linaro.org> Cc: Eduardo Habkost <eduardo@habkost.net> Cc: Marcel Apfelbaum <marcel.apfelbaum@gmail.com> Cc: "Philippe Mathieu-Daudé" <philmd@linaro.org> Cc: Yanan Wang <wangyanan55@huawei.com> Cc: "Daniel P. Berrangé" <berrange@redhat.com> Cc: Peter Xu <peterx@redhat.com> Cc: David Hildenbrand <david@redhat.com> Signed-off-by: xianglai li <lixianglai@loongson.cn> --- hw/acpi/acpi-cpu-hotplug-stub.c | 6 +++++ hw/acpi/cpu.c | 7 ------ hw/acpi/generic_event_device.c | 33 ++++++++++++++++++++++++++ include/hw/acpi/cpu_hotplug.h | 10 ++++++++ include/hw/acpi/generic_event_device.h | 6 +++++ 5 files changed, 55 insertions(+), 7 deletions(-)