15081Sgblack@eecs.umich.edu# Copyright (c) 2007 The Hewlett-Packard Development Company 210959Sdavid.hashe@amd.com# Copyright (c) 2012-2013 AMD 35081Sgblack@eecs.umich.edu# All rights reserved. 45081Sgblack@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. 135081Sgblack@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 225081Sgblack@eecs.umich.edu# contributors may be used to endorse or promote products derived from 237087Snate@binkert.org# this software without specific prior written permission. 245081Sgblack@eecs.umich.edu# 255081Sgblack@eecs.umich.edu# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 265081Sgblack@eecs.umich.edu# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 275081Sgblack@eecs.umich.edu# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 285081Sgblack@eecs.umich.edu# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 295081Sgblack@eecs.umich.edu# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 305081Sgblack@eecs.umich.edu# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 315081Sgblack@eecs.umich.edu# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 325081Sgblack@eecs.umich.edu# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 335081Sgblack@eecs.umich.edu# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 345081Sgblack@eecs.umich.edu# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 355081Sgblack@eecs.umich.edu# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 365081Sgblack@eecs.umich.edu# 375081Sgblack@eecs.umich.edu# Authors: Gabe Black 385081Sgblack@eecs.umich.edu 395081Sgblack@eecs.umich.edumicrocode = ''' 405081Sgblack@eecs.umich.edudef macroop JMP_I 415081Sgblack@eecs.umich.edu{ 425081Sgblack@eecs.umich.edu # Make the default data size of jumps 64 bits in 64 bit mode 435081Sgblack@eecs.umich.edu .adjust_env oszIn64Override 445081Sgblack@eecs.umich.edu 455081Sgblack@eecs.umich.edu rdip t1 465081Sgblack@eecs.umich.edu limm t2, imm 475081Sgblack@eecs.umich.edu wrip t1, t2 485081Sgblack@eecs.umich.edu}; 495081Sgblack@eecs.umich.edu 505081Sgblack@eecs.umich.edudef macroop JMP_R 515081Sgblack@eecs.umich.edu{ 525081Sgblack@eecs.umich.edu # Make the default data size of jumps 64 bits in 64 bit mode 535081Sgblack@eecs.umich.edu .adjust_env oszIn64Override 545081Sgblack@eecs.umich.edu 555081Sgblack@eecs.umich.edu wripi reg, 0 565081Sgblack@eecs.umich.edu}; 575081Sgblack@eecs.umich.edu 585081Sgblack@eecs.umich.edudef macroop JMP_M 595081Sgblack@eecs.umich.edu{ 605081Sgblack@eecs.umich.edu # Make the default data size of jumps 64 bits in 64 bit mode 615081Sgblack@eecs.umich.edu .adjust_env oszIn64Override 625081Sgblack@eecs.umich.edu 635081Sgblack@eecs.umich.edu ld t1, seg, sib, disp 645081Sgblack@eecs.umich.edu wripi t1, 0 655081Sgblack@eecs.umich.edu}; 665081Sgblack@eecs.umich.edu 675081Sgblack@eecs.umich.edudef macroop JMP_P 685081Sgblack@eecs.umich.edu{ 695081Sgblack@eecs.umich.edu # Make the default data size of jumps 64 bits in 64 bit mode 705081Sgblack@eecs.umich.edu .adjust_env oszIn64Override 715081Sgblack@eecs.umich.edu 725081Sgblack@eecs.umich.edu rdip t7 735081Sgblack@eecs.umich.edu ld t1, seg, riprel, disp 745081Sgblack@eecs.umich.edu wripi t1, 0 755081Sgblack@eecs.umich.edu}; 766060Sgblack@eecs.umich.edu 776060Sgblack@eecs.umich.edudef macroop JMP_FAR_M 786060Sgblack@eecs.umich.edu{ 796060Sgblack@eecs.umich.edu limm t1, 0, dataSize=8 806060Sgblack@eecs.umich.edu limm t2, 0, dataSize=8 816060Sgblack@eecs.umich.edu lea t1, seg, sib, disp, dataSize=asz 826060Sgblack@eecs.umich.edu ld t2, seg, [1, t0, t1], dsz 836060Sgblack@eecs.umich.edu ld t1, seg, [1, t0, t1] 846060Sgblack@eecs.umich.edu br rom_label("jmpFarWork") 856060Sgblack@eecs.umich.edu}; 866060Sgblack@eecs.umich.edu 876060Sgblack@eecs.umich.edudef macroop JMP_FAR_P 886060Sgblack@eecs.umich.edu{ 896060Sgblack@eecs.umich.edu limm t1, 0, dataSize=8 906060Sgblack@eecs.umich.edu limm t2, 0, dataSize=8 916060Sgblack@eecs.umich.edu rdip t7, dataSize=asz 926060Sgblack@eecs.umich.edu lea t1, seg, riprel, disp, dataSize=asz 936060Sgblack@eecs.umich.edu ld t2, seg, [1, t0, t1], dsz 946060Sgblack@eecs.umich.edu ld t1, seg, [1, t0, t1] 956060Sgblack@eecs.umich.edu br rom_label("jmpFarWork") 966060Sgblack@eecs.umich.edu}; 976060Sgblack@eecs.umich.edu 986060Sgblack@eecs.umich.edudef macroop JMP_FAR_I 996060Sgblack@eecs.umich.edu{ 1006060Sgblack@eecs.umich.edu # Put the whole far pointer into a register. 1016060Sgblack@eecs.umich.edu limm t2, imm, dataSize=8 1026060Sgblack@eecs.umich.edu # Figure out the width of the offset. 1036060Sgblack@eecs.umich.edu limm t3, dsz, dataSize=8 1046344Sgblack@eecs.umich.edu slli t3, t3, 3, dataSize=8 1057931Stharris@microsoft.com # Get the offset into t1. 1067931Stharris@microsoft.com mov t1, t0, t2 1077931Stharris@microsoft.com # Get the selector into t2. 1087931Stharris@microsoft.com srl t2, t2, t3, dataSize=8 1097931Stharris@microsoft.com mov t2, t0, t2, dataSize=2 1106060Sgblack@eecs.umich.edu br rom_label("jmpFarWork") 1116060Sgblack@eecs.umich.edu}; 1126060Sgblack@eecs.umich.edu 1136060Sgblack@eecs.umich.edudef rom 1146060Sgblack@eecs.umich.edu{ 1156060Sgblack@eecs.umich.edu extern jmpFarWork: 1166060Sgblack@eecs.umich.edu # t1 has the offset and t2 has the new selector. 1176060Sgblack@eecs.umich.edu # This is intended to run in protected mode. 1186060Sgblack@eecs.umich.edu andi t0, t2, 0xFC, flags=(EZF,), dataSize=2 11910474Sandreas.hansson@arm.com fault "std::make_shared<GeneralProtection>(0)", flags=(CEZF,) 1206060Sgblack@eecs.umich.edu andi t3, t2, 0xF8, dataSize=8 1216060Sgblack@eecs.umich.edu andi t0, t2, 0x4, flags=(EZF,), dataSize=2 1226060Sgblack@eecs.umich.edu br rom_local_label("farJmpGlobalDescriptor"), flags=(CEZF,) 1236060Sgblack@eecs.umich.edu ld t4, tsl, [1, t0, t3], dataSize=8, addressSize=8, atCPL0=True 1246060Sgblack@eecs.umich.edu br rom_local_label("farJmpProcessDescriptor") 1256060Sgblack@eecs.umich.edufarJmpGlobalDescriptor: 1266060Sgblack@eecs.umich.edu ld t4, tsg, [1, t0, t3], dataSize=8, addressSize=8, atCPL0=True 1276060Sgblack@eecs.umich.edufarJmpProcessDescriptor: 1286060Sgblack@eecs.umich.edu rcri t0, t4, 13, flags=(ECF,), dataSize=2 1296060Sgblack@eecs.umich.edu br rom_local_label("farJmpSystemDescriptor"), flags=(nCECF,) 1306060Sgblack@eecs.umich.edu chks t2, t4, CSCheck, dataSize=8 13110959Sdavid.hashe@amd.com wrdl cs, t4, t2, dataSize=4 13210959Sdavid.hashe@amd.com wrsel cs, t2, dataSize=4 13310959Sdavid.hashe@amd.com wrip t0, t1, dataSize=4 1346060Sgblack@eecs.umich.edu eret 1356060Sgblack@eecs.umich.edu 1366060Sgblack@eecs.umich.edufarJmpSystemDescriptor: 1376060Sgblack@eecs.umich.edu panic "Far jumps to system descriptors aren't implemented" 1386060Sgblack@eecs.umich.edu eret 1396060Sgblack@eecs.umich.edu}; 1406060Sgblack@eecs.umich.edu 1416060Sgblack@eecs.umich.edudef macroop JMP_FAR_REAL_M 1426060Sgblack@eecs.umich.edu{ 1436060Sgblack@eecs.umich.edu lea t1, seg, sib, disp, dataSize=asz 1446060Sgblack@eecs.umich.edu ld t2, seg, [1, t0, t1], dsz 1456060Sgblack@eecs.umich.edu ld t1, seg, [1, t0, t1] 1466060Sgblack@eecs.umich.edu zexti t3, t1, 15, dataSize=8 1476060Sgblack@eecs.umich.edu slli t3, t3, 4, dataSize=8 1486060Sgblack@eecs.umich.edu wrsel cs, t1, dataSize=2 14910544Sgabeblack@google.com wrbase cs, t3, dataSize=8 1506060Sgblack@eecs.umich.edu wrip t0, t2, dataSize=asz 1516060Sgblack@eecs.umich.edu}; 1526060Sgblack@eecs.umich.edu 1536060Sgblack@eecs.umich.edudef macroop JMP_FAR_REAL_P 1546060Sgblack@eecs.umich.edu{ 1556060Sgblack@eecs.umich.edu panic "Real mode far jump executed in 64 bit mode!" 1566060Sgblack@eecs.umich.edu}; 1576060Sgblack@eecs.umich.edu 1586060Sgblack@eecs.umich.edudef macroop JMP_FAR_REAL_I 1596060Sgblack@eecs.umich.edu{ 1606060Sgblack@eecs.umich.edu # Put the whole far pointer into a register. 1616060Sgblack@eecs.umich.edu limm t2, imm, dataSize=8 1626060Sgblack@eecs.umich.edu # Figure out the width of the offset. 1636060Sgblack@eecs.umich.edu limm t3, dsz, dataSize=8 1646344Sgblack@eecs.umich.edu slli t3, t3, 3, dataSize=8 1656060Sgblack@eecs.umich.edu # Get the selector into t1. 16610543Sgabeblack@google.com srl t1, t2, t3, dataSize=8 1676060Sgblack@eecs.umich.edu mov t1, t0, t1, dataSize=2 1686060Sgblack@eecs.umich.edu # And get the offset into t2 1696060Sgblack@eecs.umich.edu mov t2, t0, t2 17010543Sgabeblack@google.com slli t3, t1, 4, dataSize=8 1716060Sgblack@eecs.umich.edu wrsel cs, t1, dataSize=2 17210544Sgabeblack@google.com wrbase cs, t3, dataSize=8 1736060Sgblack@eecs.umich.edu wrip t0, t2, dataSize=asz 1746060Sgblack@eecs.umich.edu}; 1755081Sgblack@eecs.umich.edu''' 176