e820.cc revision 8852
15450Sgblack@eecs.umich.edu/* 25450Sgblack@eecs.umich.edu * Copyright (c) 2008 The Hewlett-Packard Development Company 35450Sgblack@eecs.umich.edu * All rights reserved. 45450Sgblack@eecs.umich.edu * 57087Snate@binkert.org * The license below extends only to copyright in the software and shall 67087Snate@binkert.org * not be construed as granting a license to any other intellectual 77087Snate@binkert.org * property including but not limited to intellectual property relating 87087Snate@binkert.org * to a hardware implementation of the functionality of the software 97087Snate@binkert.org * licensed hereunder. You may use the software subject to the license 107087Snate@binkert.org * terms below provided that you ensure that this notice is replicated 117087Snate@binkert.org * unmodified and in its entirety in all distributions of the software, 127087Snate@binkert.org * modified or unmodified, in source code or in binary form. 135450Sgblack@eecs.umich.edu * 147087Snate@binkert.org * Redistribution and use in source and binary forms, with or without 157087Snate@binkert.org * modification, are permitted provided that the following conditions are 167087Snate@binkert.org * met: redistributions of source code must retain the above copyright 177087Snate@binkert.org * notice, this list of conditions and the following disclaimer; 187087Snate@binkert.org * redistributions in binary form must reproduce the above copyright 197087Snate@binkert.org * notice, this list of conditions and the following disclaimer in the 207087Snate@binkert.org * documentation and/or other materials provided with the distribution; 217087Snate@binkert.org * neither the name of the copyright holders nor the names of its 225450Sgblack@eecs.umich.edu * contributors may be used to endorse or promote products derived from 237087Snate@binkert.org * this software without specific prior written permission. 245450Sgblack@eecs.umich.edu * 255450Sgblack@eecs.umich.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 265450Sgblack@eecs.umich.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 275450Sgblack@eecs.umich.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 285450Sgblack@eecs.umich.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 295450Sgblack@eecs.umich.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 305450Sgblack@eecs.umich.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 315450Sgblack@eecs.umich.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 325450Sgblack@eecs.umich.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 335450Sgblack@eecs.umich.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 345450Sgblack@eecs.umich.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 355450Sgblack@eecs.umich.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 365450Sgblack@eecs.umich.edu * 375450Sgblack@eecs.umich.edu * Authors: Gabe Black 385450Sgblack@eecs.umich.edu */ 395450Sgblack@eecs.umich.edu 405450Sgblack@eecs.umich.edu#include "arch/x86/bios/e820.hh" 415450Sgblack@eecs.umich.edu#include "arch/x86/isa_traits.hh" 428852Sandreas.hansson@arm.com#include "mem/port_proxy.hh" 435450Sgblack@eecs.umich.edu#include "sim/byteswap.hh" 445450Sgblack@eecs.umich.edu 455450Sgblack@eecs.umich.eduusing namespace std; 465450Sgblack@eecs.umich.eduusing namespace X86ISA; 475450Sgblack@eecs.umich.edu 485450Sgblack@eecs.umich.edutemplate<class T> 498852Sandreas.hansson@arm.comvoid writeVal(T val, PortProxy& proxy, Addr &addr) 505450Sgblack@eecs.umich.edu{ 515450Sgblack@eecs.umich.edu T guestVal = htog(val); 528852Sandreas.hansson@arm.com proxy.writeBlob(addr, (uint8_t *)&guestVal, sizeof(T)); 535450Sgblack@eecs.umich.edu addr += sizeof(T); 545450Sgblack@eecs.umich.edu} 555450Sgblack@eecs.umich.edu 568852Sandreas.hansson@arm.comvoid X86ISA::E820Table::writeTo(PortProxy& proxy, Addr countAddr, Addr addr) 575450Sgblack@eecs.umich.edu{ 585450Sgblack@eecs.umich.edu uint8_t e820Nr = entries.size(); 595450Sgblack@eecs.umich.edu 605450Sgblack@eecs.umich.edu // Make sure the number of entries isn't bigger than what the kernel 615450Sgblack@eecs.umich.edu // would be capable of handling. 625450Sgblack@eecs.umich.edu assert(e820Nr <= 128); 635450Sgblack@eecs.umich.edu 645450Sgblack@eecs.umich.edu uint8_t guestE820Nr = htog(e820Nr); 655450Sgblack@eecs.umich.edu 668852Sandreas.hansson@arm.com proxy.writeBlob(countAddr, (uint8_t *)&guestE820Nr, sizeof(guestE820Nr)); 675450Sgblack@eecs.umich.edu 685450Sgblack@eecs.umich.edu for (int i = 0; i < e820Nr; i++) { 698852Sandreas.hansson@arm.com writeVal(entries[i]->addr, proxy, addr); 708852Sandreas.hansson@arm.com writeVal(entries[i]->size, proxy, addr); 718852Sandreas.hansson@arm.com writeVal(entries[i]->type, proxy, addr); 725450Sgblack@eecs.umich.edu } 735450Sgblack@eecs.umich.edu} 745450Sgblack@eecs.umich.edu 755450Sgblack@eecs.umich.eduE820Table * 765450Sgblack@eecs.umich.eduX86E820TableParams::create() 775450Sgblack@eecs.umich.edu{ 785450Sgblack@eecs.umich.edu return new E820Table(this); 795450Sgblack@eecs.umich.edu} 805450Sgblack@eecs.umich.edu 815450Sgblack@eecs.umich.eduE820Entry * 825450Sgblack@eecs.umich.eduX86E820EntryParams::create() 835450Sgblack@eecs.umich.edu{ 845450Sgblack@eecs.umich.edu return new E820Entry(this); 855450Sgblack@eecs.umich.edu} 86