target-ppc/libkvm.c

   1 /*
   2  * This file contains the powerpc specific implementation for the
   3  * architecture dependent functions defined in kvm-common.h and
   4  * libkvm.h
   5  *
   6  * Copyright (C) 2006 Qumranet, Inc.
   7  *
   8  * Authors:
   9  *      Avi Kivity   <avi@qumranet.com>
  10  *      Yaniv Kamay  <yaniv@qumranet.com>
  11  *
  12  * Copyright IBM Corp. 2007,2008
  13  * Authors:
  14  *      Jerone Young <jyoung5@us.ibm.com>
  15  *      Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
  16  *
  17  * This work is licensed under the GNU LGPL license, version 2.
  18  */
  19
  20 #include "libkvm-all.h"
  21 #include "libkvm.h"
  22 #include <errno.h>
  23 #include <stdio.h>
  24 #include <inttypes.h>
  25
  26 int handle_dcr(kvm_vcpu_context_t vcpu)
  27 {
  28         int ret = 0;
  29         struct kvm_run *run = vcpu->run;
  30         kvm_context_t kvm = vcpu->kvm;
  31
  32         if (run->dcr.is_write)
  33                 ret = kvm->callbacks->powerpc_dcr_write(vcpu,
  34                                                         run->dcr.dcrn,
  35                                                         run->dcr.data);
  36         else
  37                 ret = kvm->callbacks->powerpc_dcr_read(vcpu,
  38                                                         run->dcr.dcrn,
  39                                                         &(run->dcr.data));
  40
  41         return ret;
  42 }
  43
  44 void kvm_show_code(kvm_vcpu_context_t vcpu)
  45 {
  46         fprintf(stderr, "%s: Operation not supported\n", __FUNCTION__);
  47 }
  48
  49 void kvm_show_regs(kvm_vcpu_context_t vcpu)
  50 {
  51         struct kvm_regs regs;
  52         int i;
  53
  54         if (kvm_get_regs(vcpu, &regs))
  55                 return;
  56
  57         fprintf(stderr,"guest vcpu #%d\n", vcpu);
  58         fprintf(stderr,"pc:   %016"PRIx64" msr:  %016"PRIx64"\n",
  59                 regs.pc, regs.msr);
  60         fprintf(stderr,"lr:   %016"PRIx64" ctr:  %016"PRIx64"\n",
  61                 regs.lr, regs.ctr);
  62         fprintf(stderr,"srr0: %016"PRIx64" srr1: %016"PRIx64"\n",
  63                 regs.srr0, regs.srr1);
  64         for (i=0; i<32; i+=4)
  65         {
  66                 fprintf(stderr, "gpr%02d: %016"PRIx64" %016"PRIx64" %016"PRIx64
  67                         " %016"PRIx64"\n", i,
  68                         regs.gpr[i],
  69                         regs.gpr[i+1],
  70                         regs.gpr[i+2],
  71                         regs.gpr[i+3]);
  72         }
  73
  74         fflush(stdout);
  75 }
  76
  77 int kvm_arch_create(kvm_context_t kvm, unsigned long phys_mem_bytes,
  78                          void **vm_mem)
  79 {
  80         int r;
  81
  82         r = kvm_init_coalesced_mmio(kvm);
  83         if (r < 0)
  84                 return r;
  85
  86         return 0;
  87 }
  88
  89 int kvm_arch_run(kvm_vcpu_context_t vcpu)
  90 {
  91         int ret = 0;
  92
  93         switch (vcpu->run->exit_reason){
  94         case KVM_EXIT_DCR:
  95                 ret = handle_dcr(vcpu);
  96                 break;
  97         default:
  98                 ret = 1;
  99                 break;
 100         }
 101         return ret;
 102 }