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author | Igor Mammedov <imammedo@redhat.com> | 2016-04-22 19:06:36 +0200 |
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committer | Michael S. Tsirkin <mst@redhat.com> | 2016-06-24 05:21:35 +0300 |
commit | 76623d00ae578335f6c9f31cd13fc5bf1931dbc3 (patch) | |
tree | 241c66502f726f271ef5c7d0f80ea4dcf77db1f4 /hw/acpi/cpu.c | |
parent | 8872c25a26ccc2c2f62903b023212bbc0a4f5d39 (diff) | |
download | qemu-76623d00ae578335f6c9f31cd13fc5bf1931dbc3.zip qemu-76623d00ae578335f6c9f31cd13fc5bf1931dbc3.tar.gz qemu-76623d00ae578335f6c9f31cd13fc5bf1931dbc3.tar.bz2 |
acpi: cpuhp: add cpu._OST handling
it adds HW and AML parts for CPU_Device._OST method
handling to allow OSPM reports status of hot-(un)plug
operation.
And extends QMP command query-acpi-ospm-status to report
CPU's OST info along with already reported PC-DIMM devices.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/acpi/cpu.c')
-rw-r--r-- | hw/acpi/cpu.c | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/hw/acpi/cpu.c b/hw/acpi/cpu.c index 483b808..401ac0d 100644 --- a/hw/acpi/cpu.c +++ b/hw/acpi/cpu.c @@ -2,6 +2,7 @@ #include "hw/boards.h" #include "hw/acpi/cpu.h" #include "qapi/error.h" +#include "qapi-event.h" #include "trace.h" #define ACPI_CPU_HOTPLUG_REG_LEN 12 @@ -12,9 +13,42 @@ enum { CPHP_GET_NEXT_CPU_WITH_EVENT_CMD = 0, + CPHP_OST_EVENT_CMD = 1, + CPHP_OST_STATUS_CMD = 2, CPHP_CMD_MAX }; +static ACPIOSTInfo *acpi_cpu_device_status(int idx, AcpiCpuStatus *cdev) +{ + ACPIOSTInfo *info = g_new0(ACPIOSTInfo, 1); + + info->slot_type = ACPI_SLOT_TYPE_CPU; + info->slot = g_strdup_printf("%d", idx); + info->source = cdev->ost_event; + info->status = cdev->ost_status; + if (cdev->cpu) { + DeviceState *dev = DEVICE(cdev->cpu); + if (dev->id) { + info->device = g_strdup(dev->id); + info->has_device = true; + } + } + return info; +} + +void acpi_cpu_ospm_status(CPUHotplugState *cpu_st, ACPIOSTInfoList ***list) +{ + int i; + + for (i = 0; i < cpu_st->dev_count; i++) { + ACPIOSTInfoList *elem = g_new0(ACPIOSTInfoList, 1); + elem->value = acpi_cpu_device_status(i, &cpu_st->devs[i]); + elem->next = NULL; + **list = elem; + *list = &elem->next; + } +} + static uint64_t cpu_hotplug_rd(void *opaque, hwaddr addr, unsigned size) { uint64_t val = 0; @@ -54,6 +88,7 @@ static void cpu_hotplug_wr(void *opaque, hwaddr addr, uint64_t data, { CPUHotplugState *cpu_st = opaque; AcpiCpuStatus *cdev; + ACPIOSTInfo *info; assert(cpu_st->dev_count); @@ -112,6 +147,28 @@ static void cpu_hotplug_wr(void *opaque, hwaddr addr, uint64_t data, } } break; + case ACPI_CPU_CMD_DATA_OFFSET_RW: + switch (cpu_st->command) { + case CPHP_OST_EVENT_CMD: { + cdev = &cpu_st->devs[cpu_st->selector]; + cdev->ost_event = data; + trace_cpuhp_acpi_write_ost_ev(cpu_st->selector, cdev->ost_event); + break; + } + case CPHP_OST_STATUS_CMD: { + cdev = &cpu_st->devs[cpu_st->selector]; + cdev->ost_status = data; + info = acpi_cpu_device_status(cpu_st->selector, cdev); + qapi_event_send_acpi_device_ost(info, &error_abort); + qapi_free_ACPIOSTInfo(info); + trace_cpuhp_acpi_write_ost_status(cpu_st->selector, + cdev->ost_status); + break; + } + default: + break; + } + break; default: break; } @@ -216,6 +273,8 @@ static const VMStateDescription vmstate_cpuhp_sts = { .fields = (VMStateField[]) { VMSTATE_BOOL(is_inserting, AcpiCpuStatus), VMSTATE_BOOL(is_removing, AcpiCpuStatus), + VMSTATE_UINT32(ost_event, AcpiCpuStatus), + VMSTATE_UINT32(ost_status, AcpiCpuStatus), VMSTATE_END_OF_LIST() } }; @@ -241,6 +300,7 @@ const VMStateDescription vmstate_cpu_hotplug = { #define CPU_SCAN_METHOD "CSCN" #define CPU_NOTIFY_METHOD "CTFY" #define CPU_EJECT_METHOD "CEJ0" +#define CPU_OST_METHOD "COST" #define CPU_ENABLED "CPEN" #define CPU_SELECTOR "CSEL" @@ -416,6 +476,22 @@ void build_cpus_aml(Aml *table, MachineState *machine, CPUHotplugFeatures opts, } aml_append(cpus_dev, method); + method = aml_method(CPU_OST_METHOD, 4, AML_SERIALIZED); + { + Aml *uid = aml_arg(0); + Aml *ev_cmd = aml_int(CPHP_OST_EVENT_CMD); + Aml *st_cmd = aml_int(CPHP_OST_STATUS_CMD); + + aml_append(method, aml_acquire(ctrl_lock, 0xFFFF)); + aml_append(method, aml_store(uid, cpu_selector)); + aml_append(method, aml_store(ev_cmd, cpu_cmd)); + aml_append(method, aml_store(aml_arg(1), cpu_data)); + aml_append(method, aml_store(st_cmd, cpu_cmd)); + aml_append(method, aml_store(aml_arg(2), cpu_data)); + aml_append(method, aml_release(ctrl_lock)); + } + aml_append(cpus_dev, method); + /* build Processor object for each processor */ for (i = 0; i < arch_ids->len; i++) { Aml *dev; @@ -455,6 +531,12 @@ void build_cpus_aml(Aml *table, MachineState *machine, CPUHotplugFeatures opts, aml_append(method, aml_call1(CPU_EJECT_METHOD, uid)); aml_append(dev, method); + method = aml_method("_OST", 3, AML_SERIALIZED); + aml_append(method, + aml_call4(CPU_OST_METHOD, uid, aml_arg(0), + aml_arg(1), aml_arg(2)) + ); + aml_append(dev, method); aml_append(cpus_dev, dev); } } |