sys/arch/xen/include/xen3-public/arch-ia64/hvm/save.h

   1 /******************************************************************************
   2  * save_types.h
   3  *
   4  * Copyright (c) 2007 Isaku Yamahata <yamahata at valinux co jp>
   5  *                    VA Linux Systems Japan K.K.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  *
  21  */
  22
  23 #ifndef __XEN_PUBLIC_HVM_SAVE_IA64_H__
  24 #define __XEN_PUBLIC_HVM_SAVE_IA64_H__
  25
  26 #include <public/hvm/save.h>
  27 #include <public/arch-ia64.h>
  28
  29 /*
  30  * Save/restore header: general info about the save file.
  31  */
  32
  33 /* x86 uses 0x54381286 */
  34 #define HVM_FILE_MAGIC   0x343641492f6e6558UL   /* "Xen/IA64" */
  35 #define HVM_FILE_VERSION 0x0000000000000001UL
  36
  37 struct hvm_save_header {
  38     uint64_t magic;             /* Must be HVM_FILE_MAGIC */
  39     uint64_t version;           /* File format version */
  40     uint64_t changeset;         /* Version of Xen that saved this file */
  41     uint64_t cpuid[5];          /* CPUID[0x01][%eax] on the saving machine */
  42 };
  43
  44 DECLARE_HVM_SAVE_TYPE(HEADER, 1, struct hvm_save_header);
  45
  46 /*
  47  * CPU
  48  */
  49 struct hvm_hw_ia64_cpu {
  50     uint64_t    ipsr;
  51 };
  52 DECLARE_HVM_SAVE_TYPE(CPU, 2, struct hvm_hw_ia64_cpu);
  53
  54 /*
  55  * CPU
  56  */
  57 struct hvm_hw_ia64_vpd {
  58     struct vpd      vpd;
  59 };
  60 DECLARE_HVM_SAVE_TYPE(VPD, 3, struct hvm_hw_ia64_vpd);
  61
  62 /*
  63  * device dependency
  64  * vacpi => viosapic => vlsapic
  65  */
  66 /*
  67  * vlsapic
  68  */
  69 struct hvm_hw_ia64_vlsapic {
  70     uint64_t insvc[4];
  71     uint64_t vhpi; // ??? should this be saved in vpd
  72     uint8_t xtp;
  73     uint8_t pal_init_pending;
  74     uint8_t pad[2];
  75 };
  76 DECLARE_HVM_SAVE_TYPE(VLSAPIC, 4, struct hvm_hw_ia64_vlsapic);
  77 /* set
  78  * unconditionaly set v->arch.irq_new_peding = 1
  79  * unconditionaly set v->arch.irq_new_condition = 0
  80  */
  81
  82 /*
  83  * vtime
  84  */
  85 /* itc, itm, itv are saved by arch vcpu context */
  86 struct hvm_hw_ia64_vtime {
  87     uint64_t itc;
  88     uint64_t itm;
  89
  90     uint64_t last_itc;
  91     uint64_t pending;
  92 };
  93 DECLARE_HVM_SAVE_TYPE(VTIME, 5, struct hvm_hw_ia64_vtime);
  94 /*
  95  * calculate v->vtm.vtm_offset
  96  * ??? Or should vtm_offset be set by leave_hypervisor_tail()?
  97  * start vtm_timer if necessary by vtm_set_itm().
  98  * ??? Or should vtm_timer be set by leave_hypervisor_tail()?
  99  *
 100  * ??? or should be done by schedule_tail()
 101  *        => schedule_tail() should do.
 102  */
 103
 104 /*
 105  * viosapic
 106  */
 107 #define VIOSAPIC_NUM_PINS     48
 108
 109 union viosapic_rte
 110 {
 111     uint64_t bits;
 112     struct {
 113         uint8_t vector;
 114
 115         uint8_t delivery_mode  : 3;
 116         uint8_t reserve1       : 1;
 117         uint8_t delivery_status: 1;
 118         uint8_t polarity       : 1;
 119         uint8_t reserve2       : 1;
 120         uint8_t trig_mode      : 1;
 121
 122         uint8_t mask           : 1;
 123         uint8_t reserve3       : 7;
 124
 125         uint8_t reserved[3];
 126         uint16_t dest_id;
 127     };
 128 };
 129
 130 struct hvm_hw_ia64_viosapic {
 131     uint64_t    irr;
 132     uint64_t    isr;
 133     uint32_t    ioregsel;
 134     uint32_t    pad;
 135     uint64_t    lowest_vcpu_id;
 136     uint64_t    base_address;
 137     union viosapic_rte  redirtbl[VIOSAPIC_NUM_PINS];
 138 };
 139 DECLARE_HVM_SAVE_TYPE(VIOSAPIC, 6, struct hvm_hw_ia64_viosapic);
 140
 141 /*
 142  * vacpi
 143  * PM timer
 144  */
 145 struct vacpi_regs {
 146     union {
 147         struct {
 148             uint32_t pm1a_sts:16;/* PM1a_EVT_BLK.PM1a_STS: status register */
 149             uint32_t pm1a_en:16; /* PM1a_EVT_BLK.PM1a_EN: enable register */
 150         };
 151         uint32_t evt_blk;
 152     };
 153     uint32_t tmr_val;   /* PM_TMR_BLK.TMR_VAL: 32bit free-running counter */
 154 };
 155
 156 struct hvm_hw_ia64_vacpi {
 157     struct vacpi_regs   regs;
 158 };
 159 DECLARE_HVM_SAVE_TYPE(VACPI, 7, struct hvm_hw_ia64_vacpi);
 160 /* update last_gtime and setup timer of struct vacpi */
 161
 162 /*
 163  * opt_feature: identity mapping of region 4, 5 and 7.
 164  * With the c/s 16396:d2935f9c217f of xen-ia64-devel.hg,
 165  * opt_feature hypercall supports only region 4,5,7 identity mappings.
 166  * structure hvm_hw_ia64_identity_mappings only supports them.
 167  * The new structure, struct hvm_hw_ia64_identity_mappings, is created to
 168  * avoid to keep up with change of the xen/ia64 internal structure, struct
 169  * opt_feature.
 170  *
 171  * If it is enhanced in the future, new structure will be created.
 172  */
 173 struct hvm_hw_ia64_identity_mapping {
 174     uint64_t on;        /* on/off */
 175     uint64_t pgprot;    /* The page protection bit mask of the pte. */
 176     uint64_t key;       /* A protection key. */
 177 };
 178
 179 struct hvm_hw_ia64_identity_mappings {
 180     struct hvm_hw_ia64_identity_mapping im_reg4;/* Region 4 identity mapping */
 181     struct hvm_hw_ia64_identity_mapping im_reg5;/* Region 5 identity mapping */
 182     struct hvm_hw_ia64_identity_mapping im_reg7;/* Region 7 identity mapping */
 183 };
 184 DECLARE_HVM_SAVE_TYPE(OPT_FEATURE_IDENTITY_MAPPINGS, 8, struct hvm_hw_ia64_identity_mappings);
 185
 186 /*
 187  * Largest type-code in use
 188  */
 189 #define HVM_SAVE_CODE_MAX       8
 190
 191 #endif /* __XEN_PUBLIC_HVM_SAVE_IA64_H__ */
 192
 193 /*
 194  * Local variables:
 195  * mode: C
 196  * c-set-style: "BSD"
 197  * c-basic-offset: 4
 198  * tab-width: 4
 199  * indent-tabs-mode: nil
 200  * End:
 201  */