source: vbox/trunk/src/VBox/ValidationKit/bootsectors/bs3-cpu-state64-1.c64@ 106004

/* $Id: bs3-cpu-state64-1.c64 102968 2024-01-19 11:42:40Z vboxsync $ */
/** @file
 * BS3Kit - bs3-cpu-state64-1, 64-bit C code.
 */

/*
 * Copyright (C) 2007-2023 Oracle and/or its affiliates.
 *
 * This file is part of VirtualBox base platform packages, as
 * available from https://www.virtualbox.org.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation, in version 3 of the
 * License.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <https://www.gnu.org/licenses>.
 *
 * The contents of this file may alternatively be used under the terms
 * of the Common Development and Distribution License Version 1.0
 * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
 * in the VirtualBox distribution, in which case the provisions of the
 * CDDL are applicable instead of those of the GPL.
 *
 * You may elect to license modified versions of this file under the
 * terms and conditions of either the GPL or the CDDL or both.
 *
 * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
 */


/*********************************************************************************************************************************
*   Header Files                                                                                                                 *
*********************************************************************************************************************************/
#include <bs3kit.h>
#include <iprt/asm-amd64-x86.h>


/*********************************************************************************************************************************
*   Internal Functions                                                                                                           *
*********************************************************************************************************************************/
BS3_DECL(void) bs3CpuState64Worker_Nop(void);
BS3_DECL(void) bs3CpuState64Worker_ModAll32BitGrps(void);
BS3_DECL(void) bs3CpuState64Worker_ModAll16BitGrps(void);
BS3_DECL(void) bs3CpuState64Worker_ModAll8BitGrps(void);
BS3_DECL(void) bs3CpuState64Worker_ModCr2(void);
BS3_DECL(void) bs3CpuState64Worker(PFNBS3NEAR pfnWorker);


/*********************************************************************************************************************************
*   Global Variables                                                                                                             *
*********************************************************************************************************************************/
extern BS3REGCTX        g_bs3CpuState64CtxToLoad;
extern BS3REGCTX const  g_bs3CpuState64CtxSaved;


static void bs3CpuState64InitCtx(uint64_t uTweak)
{
    Bs3RegCtxSave(&g_bs3CpuState64CtxToLoad);
    g_bs3CpuState64CtxToLoad.rax.u = UINT64_C(0x8877f055443322e0) ^ uTweak;
    g_bs3CpuState64CtxToLoad.rcx.u = UINT64_C(0x8877f155443322e1) ^ uTweak;
    g_bs3CpuState64CtxToLoad.rdx.u = UINT64_C(0x8877f255443322e2) ^ uTweak;
    g_bs3CpuState64CtxToLoad.rbx.u = UINT64_C(0x8877f355443322e3) ^ uTweak;
    g_bs3CpuState64CtxToLoad.rsp.u = UINT64_C(0x8877f455443322e4) ^ uTweak;
    g_bs3CpuState64CtxToLoad.rbp.u = UINT64_C(0x8877f555443322e5) ^ uTweak;
    g_bs3CpuState64CtxToLoad.rsi.u = UINT64_C(0x8877f655443322e6) ^ uTweak;
    g_bs3CpuState64CtxToLoad.rdi.u = UINT64_C(0x8877f755443322e7) ^ uTweak;
    g_bs3CpuState64CtxToLoad.r8.u  = UINT64_C(0x8877f855443322e8) ^ uTweak;
    g_bs3CpuState64CtxToLoad.r9.u  = UINT64_C(0x8877f955443322e9) ^ uTweak;
    g_bs3CpuState64CtxToLoad.r10.u = UINT64_C(0x8877fa55443322ea) ^ uTweak;
    g_bs3CpuState64CtxToLoad.r11.u = UINT64_C(0x8877fb55443322eb) ^ uTweak;
    g_bs3CpuState64CtxToLoad.r12.u = UINT64_C(0x8877fc55443322ec) ^ uTweak;
    g_bs3CpuState64CtxToLoad.r13.u = UINT64_C(0x8877fd55443322ed) ^ uTweak;
    g_bs3CpuState64CtxToLoad.r14.u = UINT64_C(0x8877fe55443322ee) ^ uTweak;
    g_bs3CpuState64CtxToLoad.r15.u = UINT64_C(0x8877ff55443322ef) ^ uTweak;
    g_bs3CpuState64CtxToLoad.cr2.u = UINT64_C(0x89abcdef76543210) ^ uTweak;
    //Bs3TestPrintf("** Input:\n");
    //Bs3RegCtxPrint(&g_bs3CpuState64CtxToLoad);
}


static void bs3CpuState64Comp(bool fModRbx)
{
    //Bs3TestPrintf("** Result:\n");
    //Bs3RegCtxPrint(&g_bs3CpuState64CtxSaved);
    g_bs3CpuState64CtxToLoad.rax         = g_bs3CpuState64CtxSaved.rax;
    g_bs3CpuState64CtxToLoad.rip         = g_bs3CpuState64CtxSaved.rip;
    g_bs3CpuState64CtxToLoad.rflags      = g_bs3CpuState64CtxSaved.rflags;
    g_bs3CpuState64CtxToLoad.rsp         = g_bs3CpuState64CtxSaved.rsp;
    if (!fModRbx)
        g_bs3CpuState64CtxToLoad.rbx.au16[0] = g_bs3CpuState64CtxSaved.rbx.au16[0];
    if (1)
        g_bs3CpuState64CtxToLoad.ds      = g_bs3CpuState64CtxSaved.ds;

    Bs3TestCheckRegCtxEx(&g_bs3CpuState64CtxSaved, &g_bs3CpuState64CtxToLoad, 0 /*cbPcAdjust*/, 0 /*cbSpAdjust*/,
                         0 /*fExtraEfl*/, "lm64", 0 /*idTestStep*/);
}

BS3_DECL(void) Main_lm64()
{
    Bs3TestInit("bs3-cpu-state64-1");
    /*
     * Switch to 64-bit mode and back to rm.
     */
    Bs3TestSub("noop");
    bs3CpuState64InitCtx(0);
    bs3CpuState64Worker(bs3CpuState64Worker_Nop);
    bs3CpuState64Comp(false /*fModRbx*/);

    Bs3TestSub("Modify all 32-bit GPRs");
    bs3CpuState64InitCtx(0);
    bs3CpuState64Worker(bs3CpuState64Worker_ModAll32BitGrps);
    g_bs3CpuState64CtxToLoad.rax.u = UINT64_C(0xc0ffee0d);
    g_bs3CpuState64CtxToLoad.rcx.u = UINT64_C(0xc0ffee1d);
    g_bs3CpuState64CtxToLoad.rdx.u = UINT64_C(0xc0ffee2d);
    g_bs3CpuState64CtxToLoad.rbx.u = UINT64_C(0xc0ffee3d);
    g_bs3CpuState64CtxToLoad.rsp.u = UINT64_C(0xc0ffee4d);
    g_bs3CpuState64CtxToLoad.rbp.u = UINT64_C(0xc0ffee5d);
    g_bs3CpuState64CtxToLoad.rsi.u = UINT64_C(0xc0ffee6d);
    g_bs3CpuState64CtxToLoad.rdi.u = UINT64_C(0xc0ffee7d);
    bs3CpuState64Comp(true /*fModRbx*/);

    Bs3TestSub("Modify all 16-bit GPRs");
    bs3CpuState64InitCtx(0);
    bs3CpuState64Worker(bs3CpuState64Worker_ModAll16BitGrps);
    g_bs3CpuState64CtxToLoad.rax.au16[0] = UINT16_C(0xfad0);
    g_bs3CpuState64CtxToLoad.rcx.au16[0] = UINT16_C(0xfad1);
    g_bs3CpuState64CtxToLoad.rdx.au16[0] = UINT16_C(0xfad2);
    g_bs3CpuState64CtxToLoad.rbx.au16[0] = UINT16_C(0xfad3);
    g_bs3CpuState64CtxToLoad.rsp.au16[0] = UINT16_C(0xfad4);
    g_bs3CpuState64CtxToLoad.rbp.au16[0] = UINT16_C(0xfad5);
    g_bs3CpuState64CtxToLoad.rsi.au16[0] = UINT16_C(0xfad6);
    g_bs3CpuState64CtxToLoad.rdi.au16[0] = UINT16_C(0xfad7);
    bs3CpuState64Comp(true /*fModRbx*/);

    Bs3TestSub("Modify all 8-bit GPRs");
    bs3CpuState64InitCtx(0);
    bs3CpuState64Worker(bs3CpuState64Worker_ModAll8BitGrps);
    g_bs3CpuState64CtxToLoad.rax.au8[0] = 0x10;
    g_bs3CpuState64CtxToLoad.rax.au8[1] = 0x11;
    g_bs3CpuState64CtxToLoad.rcx.au8[0] = 0x20;
    g_bs3CpuState64CtxToLoad.rcx.au8[1] = 0x21;
    g_bs3CpuState64CtxToLoad.rdx.au8[0] = 0x30;
    g_bs3CpuState64CtxToLoad.rdx.au8[1] = 0x31;
    g_bs3CpuState64CtxToLoad.rbx.au8[0] = 0x40;
    g_bs3CpuState64CtxToLoad.rbx.au8[1] = 0x41;
    bs3CpuState64Comp(true /*fModRbx*/);

    Bs3TestSub("Modify CR2");
    bs3CpuState64InitCtx(0);
    bs3CpuState64Worker(bs3CpuState64Worker_ModCr2);
    g_bs3CpuState64CtxToLoad.cr2.u = 0xf00dface;
    bs3CpuState64Comp(true /*fModRbx*/);

        /** @todo DRx */
    Bs3TestTerm();
}