/* * Copyright (C) 2015, Intel Corporation. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * 3. Neither the name of the copyright holder nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "prot-domains.h" #include "gdt.h" #include #include "interrupt.h" #include #include #include "syscalls.h" #include "stacks.h" static dom_kern_data_t __attribute__((section(".kern_prot_dom_bss"))) PROT_DOMAINS_PDCS_NM(kern_dcd); static dom_client_data_t ATTR_BSS_KERN kern_dcd; static dom_kern_data_t __attribute__((section(".app_prot_dom_bss"))) PROT_DOMAINS_PDCS_NM(app_dcd); static dom_client_data_t ATTR_BSS_KERN app_dcd; /*---------------------------------------------------------------------------*/ void prot_domains_init(void) { segment_desc_t desc; gdt_lookup(GDT_IDX_CODE_EXC, &desc); SEG_SET_FLAG(desc, DPL, PRIV_LVL_INT); gdt_insert(GDT_IDX_CODE_INT, desc); SEG_SET_FLAG(desc, DPL, PRIV_LVL_USER); gdt_insert(GDT_IDX_CODE, desc); PROT_DOMAINS_INIT_ID(kern_dcd); prot_domains_reg(&kern_dcd, 0, 0, 0, 0, true); PROT_DOMAINS_INIT_ID(app_dcd); prot_domains_reg(&app_dcd, 0, 0, 0, 0, false); prot_domains_impl_init(); } /*---------------------------------------------------------------------------*/