LXR linux/arch/ia64/kvm/vmm.c

   1/*
   2 * vmm.c: vmm module interface with kvm module
   3 *
   4 * Copyright (c) 2007, Intel Corporation.
   5 *
   6 *  Xiantao Zhang (xiantao.zhang@intel.com)
   7 *
   8 * This program is free software; you can redistribute it and/or modify it
   9 * under the terms and conditions of the GNU General Public License,
  10 * version 2, as published by the Free Software Foundation.
  11 *
  12 * This program is distributed in the hope it will be useful, but WITHOUT
  13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  15 * more details.
  16 *
  17 * You should have received a copy of the GNU General Public License along with
  18 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
  19 * Place - Suite 330, Boston, MA 02111-1307 USA.
  20 */
  21
  22
  23#include <linux/kernel.h>
  24#include <linux/module.h>
  25#include <asm/fpswa.h>
  26
  27#include "vcpu.h"
  28
  29MODULE_AUTHOR("Intel");
  30MODULE_LICENSE("GPL");
  31
  32extern char kvm_ia64_ivt;
  33extern char kvm_asm_mov_from_ar;
  34extern char kvm_asm_mov_from_ar_sn2;
  35extern fpswa_interface_t *vmm_fpswa_interface;
  36
  37long vmm_sanity = 1;
  38
  39struct kvm_vmm_info vmm_info = {
  40        .module                 = THIS_MODULE,
  41        .vmm_entry              = vmm_entry,
  42        .tramp_entry            = vmm_trampoline,
  43        .vmm_ivt                = (unsigned long)&kvm_ia64_ivt,
  44        .patch_mov_ar           = (unsigned long)&kvm_asm_mov_from_ar,
  45        .patch_mov_ar_sn2       = (unsigned long)&kvm_asm_mov_from_ar_sn2,
  46};
  47
  48static int __init  kvm_vmm_init(void)
  49{
  50
  51        vmm_fpswa_interface = fpswa_interface;
  52
  53        /*Register vmm data to kvm side*/
  54        return kvm_init(&vmm_info, 1024, 0, THIS_MODULE);
  55}
  56
  57static void __exit kvm_vmm_exit(void)
  58{
  59        kvm_exit();
  60        return ;
  61}
  62
  63void vmm_spin_lock(vmm_spinlock_t *lock)
  64{
  65        _vmm_raw_spin_lock(lock);
  66}
  67
  68void vmm_spin_unlock(vmm_spinlock_t *lock)
  69{
  70        _vmm_raw_spin_unlock(lock);
  71}
  72
  73static void vcpu_debug_exit(struct kvm_vcpu *vcpu)
  74{
  75        struct exit_ctl_data *p = &vcpu->arch.exit_data;
  76        long psr;
  77
  78        local_irq_save(psr);
  79        p->exit_reason = EXIT_REASON_DEBUG;
  80        vmm_transition(vcpu);
  81        local_irq_restore(psr);
  82}
  83
  84asmlinkage int printk(const char *fmt, ...)
  85{
  86        struct kvm_vcpu *vcpu = current_vcpu;
  87        va_list args;
  88        int r;
  89
  90        memset(vcpu->arch.log_buf, 0, VMM_LOG_LEN);
  91        va_start(args, fmt);
  92        r = vsnprintf(vcpu->arch.log_buf, VMM_LOG_LEN, fmt, args);
  93        va_end(args);
  94        vcpu_debug_exit(vcpu);
  95        return r;
  96}
  97
  98module_init(kvm_vmm_init)
  99module_exit(kvm_vmm_exit)
 100