diff options
Diffstat (limited to 'hw/acpi/cpu.c')
| -rw-r--r-- | hw/acpi/cpu.c | 67 |
1 files changed, 50 insertions, 17 deletions
diff --git a/hw/acpi/cpu.c b/hw/acpi/cpu.c index 2d81c1e..6f1ae79 100644 --- a/hw/acpi/cpu.c +++ b/hw/acpi/cpu.c @@ -5,9 +5,8 @@ #include "qapi/error.h" #include "qapi/qapi-events-acpi.h" #include "trace.h" -#include "sysemu/numa.h" +#include "system/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 @@ -236,8 +235,8 @@ void cpu_hotplug_hw_init(MemoryRegion *as, Object *owner, static AcpiCpuStatus *get_cpu_status(CPUHotplugState *cpu_st, DeviceState *dev) { - CPUClass *k = CPU_GET_CLASS(dev); - uint64_t cpu_arch_id = k->get_arch_id(CPU(dev)); + CPUState *cpu = CPU(dev); + uint64_t cpu_arch_id = cpu->cc->get_arch_id(cpu); int i; for (i = 0; i < cpu_st->dev_count; i++) { @@ -328,6 +327,7 @@ const VMStateDescription vmstate_cpu_hotplug = { #define CPU_EJECT_METHOD "CEJ0" #define CPU_OST_METHOD "COST" #define CPU_ADDED_LIST "CNEW" +#define CPU_EJ_LIST "CEJL" #define CPU_ENABLED "CPEN" #define CPU_SELECTOR "CSEL" @@ -339,9 +339,10 @@ const VMStateDescription vmstate_cpu_hotplug = { #define CPU_FW_EJECT_EVENT "CEJF" void build_cpus_aml(Aml *table, MachineState *machine, CPUHotplugFeatures opts, - build_madt_cpu_fn build_madt_cpu, hwaddr io_base, + build_madt_cpu_fn build_madt_cpu, hwaddr base_addr, const char *res_root, - const char *event_handler_method) + const char *event_handler_method, + AmlRegionSpace rs) { Aml *ifctx; Aml *field; @@ -365,14 +366,22 @@ void build_cpus_aml(Aml *table, MachineState *machine, CPUHotplugFeatures opts, aml_name_decl("_UID", aml_string("CPU Hotplug resources"))); aml_append(cpu_ctrl_dev, aml_mutex(CPU_LOCK, 0)); + assert((rs == AML_SYSTEM_IO) || (rs == AML_SYSTEM_MEMORY)); + crs = aml_resource_template(); - aml_append(crs, aml_io(AML_DECODE16, io_base, io_base, 1, + if (rs == AML_SYSTEM_IO) { + aml_append(crs, aml_io(AML_DECODE16, base_addr, base_addr, 1, ACPI_CPU_HOTPLUG_REG_LEN)); + } else if (rs == AML_SYSTEM_MEMORY) { + aml_append(crs, aml_memory32_fixed(base_addr, + ACPI_CPU_HOTPLUG_REG_LEN, AML_READ_WRITE)); + } + aml_append(cpu_ctrl_dev, aml_name_decl("_CRS", crs)); /* declare CPU hotplug MMIO region with related access fields */ aml_append(cpu_ctrl_dev, - aml_operation_region("PRST", AML_SYSTEM_IO, aml_int(io_base), + aml_operation_region("PRST", rs, aml_int(base_addr), ACPI_CPU_HOTPLUG_REG_LEN)); field = aml_field("PRST", AML_BYTE_ACC, AML_NOLOCK, @@ -480,7 +489,6 @@ void build_cpus_aml(Aml *table, MachineState *machine, CPUHotplugFeatures opts, method = aml_method(CPU_SCAN_METHOD, 0, AML_SERIALIZED); { const uint8_t max_cpus_per_pass = 255; - Aml *else_ctx; Aml *while_ctx, *while_ctx2; Aml *has_event = aml_local(0); Aml *dev_chk = aml_int(1); @@ -491,6 +499,8 @@ void build_cpus_aml(Aml *table, MachineState *machine, CPUHotplugFeatures opts, Aml *uid = aml_local(3); Aml *has_job = aml_local(4); Aml *new_cpus = aml_name(CPU_ADDED_LIST); + Aml *ej_cpus = aml_name(CPU_EJ_LIST); + Aml *num_ej_cpus = aml_local(5); aml_append(method, aml_acquire(ctrl_lock, 0xFFFF)); @@ -505,6 +515,8 @@ void build_cpus_aml(Aml *table, MachineState *machine, CPUHotplugFeatures opts, */ aml_append(method, aml_name_decl(CPU_ADDED_LIST, aml_package(max_cpus_per_pass))); + aml_append(method, aml_name_decl(CPU_EJ_LIST, + aml_package(max_cpus_per_pass))); aml_append(method, aml_store(zero, uid)); aml_append(method, aml_store(one, has_job)); @@ -519,6 +531,7 @@ void build_cpus_aml(Aml *table, MachineState *machine, CPUHotplugFeatures opts, aml_append(while_ctx2, aml_store(one, has_event)); aml_append(while_ctx2, aml_store(zero, num_added_cpus)); + aml_append(while_ctx2, aml_store(zero, num_ej_cpus)); /* * Scan CPUs, till there are CPUs with events or @@ -551,8 +564,10 @@ void build_cpus_aml(Aml *table, MachineState *machine, CPUHotplugFeatures opts, * if CPU_ADDED_LIST is full, exit inner loop and process * collected CPUs */ - ifctx = aml_if( - aml_equal(num_added_cpus, aml_int(max_cpus_per_pass))); + ifctx = aml_if(aml_lor( + aml_equal(num_added_cpus, aml_int(max_cpus_per_pass)), + aml_equal(num_ej_cpus, aml_int(max_cpus_per_pass)) + )); { aml_append(ifctx, aml_store(one, has_job)); aml_append(ifctx, aml_break()); @@ -569,16 +584,16 @@ void build_cpus_aml(Aml *table, MachineState *machine, CPUHotplugFeatures opts, aml_append(ifctx, aml_store(one, has_event)); } aml_append(while_ctx, ifctx); - else_ctx = aml_else(); + ifctx = aml_if(aml_equal(rm_evt, one)); { - aml_append(ifctx, - aml_call2(CPU_NOTIFY_METHOD, uid, eject_req)); - aml_append(ifctx, aml_store(one, rm_evt)); + /* cache to be removed CPUs to Notify later */ + aml_append(ifctx, aml_store(uid, + aml_index(ej_cpus, num_ej_cpus))); + aml_append(ifctx, aml_increment(num_ej_cpus)); aml_append(ifctx, aml_store(one, has_event)); } - aml_append(else_ctx, ifctx); - aml_append(while_ctx, else_ctx); + aml_append(while_ctx, ifctx); aml_append(while_ctx, aml_increment(uid)); } aml_append(while_ctx2, while_ctx); @@ -612,6 +627,24 @@ void build_cpus_aml(Aml *table, MachineState *machine, CPUHotplugFeatures opts, aml_append(while_ctx, aml_increment(cpu_idx)); } aml_append(while_ctx2, while_ctx); + + /* + * Notify OSPM about to be removed CPUs and clear remove flag + */ + aml_append(while_ctx2, aml_store(zero, cpu_idx)); + while_ctx = aml_while(aml_lless(cpu_idx, num_ej_cpus)); + { + aml_append(while_ctx, + aml_store(aml_derefof(aml_index(ej_cpus, cpu_idx)), + uid)); + aml_append(while_ctx, + aml_call2(CPU_NOTIFY_METHOD, uid, eject_req)); + aml_append(while_ctx, aml_store(uid, cpu_selector)); + aml_append(while_ctx, aml_store(one, rm_evt)); + aml_append(while_ctx, aml_increment(cpu_idx)); + } + aml_append(while_ctx2, while_ctx); + /* * If another batch is needed, then it will resume scanning * exactly at -- and not after -- the last CPU that's currently |