include/hw/ppc/spapr_cpu_core.h

   1 /*
   2  * sPAPR CPU core device.
   3  *
   4  * Copyright (C) 2016 Bharata B Rao <bharata@linux.vnet.ibm.com>
   5  *
   6  * This work is licensed under the terms of the GNU GPL, version 2 or later.
   7  * See the COPYING file in the top-level directory.
   8  */
   9 #ifndef HW_SPAPR_CPU_CORE_H
  10 #define HW_SPAPR_CPU_CORE_H
  11
  12 #include "hw/cpu/core.h"
  13 #include "hw/qdev-core.h"
  14 #include "target/ppc/cpu-qom.h"
  15 #include "target/ppc/cpu.h"
  16 #include "qom/object.h"
  17
  18 #define TYPE_SPAPR_CPU_CORE "spapr-cpu-core"
  19 OBJECT_DECLARE_TYPE(SpaprCpuCore, SpaprCpuCoreClass,
  20                     SPAPR_CPU_CORE)
  21
  22 #define SPAPR_CPU_CORE_TYPE_NAME(model) model "-" TYPE_SPAPR_CPU_CORE
  23
  24 struct SpaprCpuCore {
  25     /*< private >*/
  26     CPUCore parent_obj;
  27
  28     /*< public >*/
  29     PowerPCCPU **threads;
  30     int node_id;
  31     bool pre_3_0_migration; /* older machine don't know about SpaprCpuState */
  32 };
  33
  34 struct SpaprCpuCoreClass {
  35     DeviceClass parent_class;
  36     const char *cpu_type;
  37 };
  38
  39 const char *spapr_get_cpu_core_type(const char *cpu_type);
  40 void spapr_cpu_set_entry_state(PowerPCCPU *cpu, target_ulong nip,
  41                                target_ulong r1, target_ulong r3,
  42                                target_ulong r4);
  43
  44 struct nested_ppc_state;
  45
  46 typedef struct SpaprCpuState {
  47     uint64_t vpa_addr;
  48     uint64_t slb_shadow_addr, slb_shadow_size;
  49     uint64_t dtl_addr, dtl_size;
  50     bool prod; /* not migrated, only used to improve dispatch latencies */
  51     struct ICPState *icp;
  52     struct XiveTCTX *tctx;
  53
  54     /* Fields for nested-HV support */
  55     bool in_nested; /* true while the L2 is executing */
  56     struct nested_ppc_state *nested_host_state; /* holds the L1 state while L2 executes */
  57 } SpaprCpuState;
  58
  59 static inline SpaprCpuState *spapr_cpu_state(PowerPCCPU *cpu)
  60 {
  61     return (SpaprCpuState *)cpu->machine_data;
  62 }
  63
  64 #endif