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