include/hw/ppc/spapr_xive.h

   1 /*
   2  * QEMU PowerPC sPAPR XIVE interrupt controller model
   3  *
   4  * Copyright (c) 2017-2018, IBM Corporation.
   5  *
   6  * This code is licensed under the GPL version 2 or later. See the
   7  * COPYING file in the top-level directory.
   8  */
   9
  10 #ifndef PPC_SPAPR_XIVE_H
  11 #define PPC_SPAPR_XIVE_H
  12
  13 #include "hw/ppc/spapr_irq.h"
  14 #include "hw/ppc/xive.h"
  15
  16 #define TYPE_SPAPR_XIVE "spapr-xive"
  17 #define SPAPR_XIVE(obj) OBJECT_CHECK(SpaprXive, (obj), TYPE_SPAPR_XIVE)
  18 #define SPAPR_XIVE_CLASS(klass)                                         \
  19     OBJECT_CLASS_CHECK(SpaprXiveClass, (klass), TYPE_SPAPR_XIVE)
  20 #define SPAPR_XIVE_GET_CLASS(obj)                               \
  21     OBJECT_GET_CLASS(SpaprXiveClass, (obj), TYPE_SPAPR_XIVE)
  22
  23 typedef struct SpaprXive {
  24     XiveRouter    parent;
  25
  26     /* Internal interrupt source for IPIs and virtual devices */
  27     XiveSource    source;
  28     hwaddr        vc_base;
  29
  30     /* END ESB MMIOs */
  31     XiveENDSource end_source;
  32     hwaddr        end_base;
  33
  34     /* DT */
  35     gchar *nodename;
  36
  37     /* Routing table */
  38     XiveEAS       *eat;
  39     uint32_t      nr_irqs;
  40     XiveEND       *endt;
  41     uint32_t      nr_ends;
  42
  43     /* TIMA mapping address */
  44     hwaddr        tm_base;
  45     MemoryRegion  tm_mmio;
  46
  47     /* KVM support */
  48     int           fd;
  49     void          *tm_mmap;
  50     MemoryRegion  tm_mmio_kvm;
  51     VMChangeStateEntry *change;
  52
  53     uint8_t       hv_prio;
  54 } SpaprXive;
  55
  56 typedef struct SpaprXiveClass {
  57     XiveRouterClass parent;
  58
  59     DeviceRealize parent_realize;
  60 } SpaprXiveClass;
  61
  62 /*
  63  * The sPAPR machine has a unique XIVE IC device. Assign a fixed value
  64  * to the controller block id value. It can nevertheless be changed
  65  * for testing purpose.
  66  */
  67 #define SPAPR_XIVE_BLOCK_ID 0x0
  68
  69 struct SpaprMachineState;
  70 void spapr_xive_hcall_init(struct SpaprMachineState *spapr);
  71 void spapr_xive_mmio_set_enabled(SpaprXive *xive, bool enable);
  72 void spapr_xive_map_mmio(SpaprXive *xive);
  73
  74 int spapr_xive_end_to_target(uint8_t end_blk, uint32_t end_idx,
  75                              uint32_t *out_server, uint8_t *out_prio);
  76
  77 /*
  78  * KVM XIVE device helpers
  79  */
  80 int kvmppc_xive_connect(SpaprInterruptController *intc, uint32_t nr_servers,
  81                         Error **errp);
  82 void kvmppc_xive_disconnect(SpaprInterruptController *intc);
  83 void kvmppc_xive_reset(SpaprXive *xive, Error **errp);
  84 int kvmppc_xive_set_source_config(SpaprXive *xive, uint32_t lisn, XiveEAS *eas,
  85                                   Error **errp);
  86 void kvmppc_xive_sync_source(SpaprXive *xive, uint32_t lisn, Error **errp);
  87 uint64_t kvmppc_xive_esb_rw(XiveSource *xsrc, int srcno, uint32_t offset,
  88                             uint64_t data, bool write);
  89 int kvmppc_xive_set_queue_config(SpaprXive *xive, uint8_t end_blk,
  90                                  uint32_t end_idx, XiveEND *end,
  91                                  Error **errp);
  92 int kvmppc_xive_get_queue_config(SpaprXive *xive, uint8_t end_blk,
  93                                  uint32_t end_idx, XiveEND *end,
  94                                  Error **errp);
  95 void kvmppc_xive_synchronize_state(SpaprXive *xive, Error **errp);
  96 int kvmppc_xive_pre_save(SpaprXive *xive);
  97 int kvmppc_xive_post_load(SpaprXive *xive, int version_id);
  98
  99 #endif /* PPC_SPAPR_XIVE_H */