include/hw/ppc/spapr_nested.h

   1 #ifndef HW_SPAPR_NESTED_H
   2 #define HW_SPAPR_NESTED_H
   3
   4 #include "qemu/osdep.h"
   5 #include "target/ppc/cpu.h"
   6
   7 /*
   8  * Register state for entering a nested guest with H_ENTER_NESTED.
   9  * New member must be added at the end.
  10  */
  11 struct kvmppc_hv_guest_state {
  12     uint64_t version;      /* version of this structure layout, must be first */
  13     uint32_t lpid;
  14     uint32_t vcpu_token;
  15     /* These registers are hypervisor privileged (at least for writing) */
  16     uint64_t lpcr;
  17     uint64_t pcr;
  18     uint64_t amor;
  19     uint64_t dpdes;
  20     uint64_t hfscr;
  21     int64_t tb_offset;
  22     uint64_t dawr0;
  23     uint64_t dawrx0;
  24     uint64_t ciabr;
  25     uint64_t hdec_expiry;
  26     uint64_t purr;
  27     uint64_t spurr;
  28     uint64_t ic;
  29     uint64_t vtb;
  30     uint64_t hdar;
  31     uint64_t hdsisr;
  32     uint64_t heir;
  33     uint64_t asdr;
  34     /* These are OS privileged but need to be set late in guest entry */
  35     uint64_t srr0;
  36     uint64_t srr1;
  37     uint64_t sprg[4];
  38     uint64_t pidr;
  39     uint64_t cfar;
  40     uint64_t ppr;
  41     /* Version 1 ends here */
  42     uint64_t dawr1;
  43     uint64_t dawrx1;
  44     /* Version 2 ends here */
  45 };
  46
  47 /* Latest version of hv_guest_state structure */
  48 #define HV_GUEST_STATE_VERSION  2
  49
  50 /* Linux 64-bit powerpc pt_regs struct, used by nested HV */
  51 struct kvmppc_pt_regs {
  52     uint64_t gpr[32];
  53     uint64_t nip;
  54     uint64_t msr;
  55     uint64_t orig_gpr3;    /* Used for restarting system calls */
  56     uint64_t ctr;
  57     uint64_t link;
  58     uint64_t xer;
  59     uint64_t ccr;
  60     uint64_t softe;        /* Soft enabled/disabled */
  61     uint64_t trap;         /* Reason for being here */
  62     uint64_t dar;          /* Fault registers */
  63     uint64_t dsisr;        /* on 4xx/Book-E used for ESR */
  64     uint64_t result;       /* Result of a system call */
  65 };
  66
  67 /*
  68  * nested_ppc_state is used to save the host CPU state before switching it to
  69  * the guest CPU state, to be restored on H_ENTER_NESTED exit.
  70  */
  71 struct nested_ppc_state {
  72     uint64_t gpr[32];
  73     uint64_t lr;
  74     uint64_t ctr;
  75     uint64_t cfar;
  76     uint64_t msr;
  77     uint64_t nip;
  78     uint32_t cr;
  79
  80     uint64_t xer;
  81
  82     uint64_t lpcr;
  83     uint64_t lpidr;
  84     uint64_t pidr;
  85     uint64_t pcr;
  86     uint64_t dpdes;
  87     uint64_t hfscr;
  88     uint64_t srr0;
  89     uint64_t srr1;
  90     uint64_t sprg0;
  91     uint64_t sprg1;
  92     uint64_t sprg2;
  93     uint64_t sprg3;
  94     uint64_t ppr;
  95
  96     int64_t tb_offset;
  97 };
  98
  99 void spapr_register_nested(void);
 100 void spapr_exit_nested(PowerPCCPU *cpu, int excp);
 101
 102 #endif /* HW_SPAPR_NESTED_H */