3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * CPU Instruction Decoding & Execution Tests - Ring-3 Driver Application.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Copyright (C) 2014 Oracle Corporation
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * available from http://www.virtualbox.org. This file is free software;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * you can redistribute it and/or modify it under the terms of the GNU
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * General Public License (GPL) as published by the Free Software
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * The contents of this file may alternatively be used under the terms
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * of the Common Development and Distribution License Version 1.0
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * VirtualBox OSE distribution, in which case the provisions of the
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * CDDL are applicable instead of those of the GPL.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * You may elect to license modified versions of this file under the
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * terms and conditions of either the GPL or the CDDL or both.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync/*******************************************************************************
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync* Header Files *
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync*******************************************************************************/
7d10e144d68530a79fffc0d1a44ff4e9b7b181c5vboxsync/*******************************************************************************
7d10e144d68530a79fffc0d1a44ff4e9b7b181c5vboxsync* Defined Constants And Macros *
7d10e144d68530a79fffc0d1a44ff4e9b7b181c5vboxsync*******************************************************************************/
7d10e144d68530a79fffc0d1a44ff4e9b7b181c5vboxsync/** @def CIDET_LEAVE_GS_ALONE
7d10e144d68530a79fffc0d1a44ff4e9b7b181c5vboxsync * Leave GS alone on 64-bit darwin (gs is 0, no ldt or gdt entry to load that'll
7d10e144d68530a79fffc0d1a44ff4e9b7b181c5vboxsync * restore the lower 32-bits of the base when saving and restoring the register).
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync/*******************************************************************************
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync* Structures and Typedefs *
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync*******************************************************************************/
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * CIDET driver app buffer.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /** The buffer size. */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /** The normal allocation.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * There is a fence page before this as well as at pbNormal+cb. */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /** The low memory allocation (32-bit addressable if 64-bit host, 16-bit
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * addressable if 32-bit host). */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /** Set if we're using the normal buffer, clear if it's the low one. */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /** Set if the buffer is armed, clear if mostly accessible. */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /** Set if this is a code buffer. */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /** The memory protection for the pages (RTMEM_PROT_XXX). */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /** The memory protection for the last page (RTMEM_PROT_XXX). */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /** The buffer index. */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync/** Pointer to a CIDET driver app buffer. */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync/** Number of code buffers. */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync/** Number of data buffers. */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * CIDET driver app instance.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /** The core structure. */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /** The execute return context. */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /** Code buffers (runs parallel to g_aCodeBufCfgs). */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /** Data buffers (runs parallel to g_aDataBufCfgs). */
694eb5fb2b25736d37902333e059a149f78c563cvboxsync /** The lowest stack address. */
694eb5fb2b25736d37902333e059a149f78c563cvboxsync /** The end of the stack allocation (highest address). */
694eb5fb2b25736d37902333e059a149f78c563cvboxsync /** Stack size (= pbStackEnd - pbStackLow). */
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync /** Whether we're currently using the 'lock int3' to deal with tricky stack. */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync/** Pointer to a CIDET driver app instance. */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync/** Pointer to a pointer to a CIDET driver app instance. */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync/*******************************************************************************
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync* Global Variables *
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync*******************************************************************************/
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync/** The test instance handle. */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync/** Points to the instance data while executing, NULL if not executing or if
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * we've already handled the first exception while executing. */
c7522a3707ee4cc598fcb8d20bf679649dba09b3vboxsync/** The default signal mask. */
c7522a3707ee4cc598fcb8d20bf679649dba09b3vboxsync/** The alternative signal stack. */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync/** Code buffer configurations (parallel to CIDETAPP::aCodeBuffers). */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsyncstatic CIDETBUFCFG g_aCodeBufCfgs[CIDETAPP_CODE_BUF_COUNT] =
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync CIDETBUF_PROT_RWX | CIDETBUF_DPL_3 | CIDETBUF_DPL_SAME | CIDETBUF_SEG_ER | CIDETBUF_KIND_CODE,
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync/** Data buffer configurations (parallel to CIDETAPP::aDataBuffers). */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsyncstatic CIDETBUFCFG g_aDataBufCfgs[CIDETAPP_DATA_BUF_COUNT] =
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync CIDETBUF_PROT_RWX | CIDETBUF_DPL_3 | CIDETBUF_DPL_SAME | CIDETBUF_SEG_RW | CIDETBUF_KIND_DATA,
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync/*******************************************************************************
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync* Internal Functions *
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync*******************************************************************************/
3bc264992af3416ecba168e6ffae1a334fe79088vboxsyncDECLASM(void) CidetAppRestoreCtx(PCCIDETCPUCTX pRestoreCtx);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsyncDECLASM(void) CidetAppExecute(PCIDETCPUCTX pSaveCtx, PCCIDETCPUCTX pRestoreCtx);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Exception and signal handling.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Exception and signal handling.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Exception and signal handling.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsyncstatic int CidetAppXcptFilter(EXCEPTION_POINTERS *pXcptPtrs)
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Grab the this point. We expect at most one signal.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /* we're up the infamous creek... */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Gather CPU state information from the context structure.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync if ( (pSrcCtx->ContextFlags & (CONTEXT_CONTROL | CONTEXT_INTEGER | CONTEXT_SEGMENTS))
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync != (CONTEXT_CONTROL | CONTEXT_INTEGER | CONTEXT_SEGMENTS))
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_xAX] = pSrcCtx->Rax;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_xCX] = pSrcCtx->Rcx;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_xDX] = pSrcCtx->Rdx;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_xBX] = pSrcCtx->Rbx;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_xSP] = pSrcCtx->Rsp;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_xBP] = pSrcCtx->Rbp;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_xSI] = pSrcCtx->Rsi;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_xDI] = pSrcCtx->Rdi;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_x8] = pSrcCtx->R8;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_x9] = pSrcCtx->R9;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_x10] = pSrcCtx->R10;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_x11] = pSrcCtx->R11;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_x12] = pSrcCtx->R12;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_x13] = pSrcCtx->R13;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_x14] = pSrcCtx->R14;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_x15] = pSrcCtx->R15;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aSRegs[X86_SREG_ES] = pSrcCtx->SegEs;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aSRegs[X86_SREG_CS] = pSrcCtx->SegCs;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aSRegs[X86_SREG_SS] = pSrcCtx->SegSs;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aSRegs[X86_SREG_DS] = pSrcCtx->SegDs;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aSRegs[X86_SREG_FS] = pSrcCtx->SegFs;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aSRegs[X86_SREG_GS] = pSrcCtx->SegGs;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync if (pSrcCtx->ContextFlags & CONTEXT_FLOATING_POINT)
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync if (pSrcCtx->ContextFlags & CONTEXT_DEBUG_REGISTERS)
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync if ( (pSrcCtx->ContextFlags & (CONTEXT_CONTROL | CONTEXT_INTEGER | CONTEXT_SEGMENTS))
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync != (CONTEXT_CONTROL | CONTEXT_INTEGER | CONTEXT_SEGMENTS))
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_xAX] = pSrcCtx->Eax;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_xCX] = pSrcCtx->Ecx;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_xDX] = pSrcCtx->Edx;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_xBX] = pSrcCtx->Ebx;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_xSP] = pSrcCtx->Esp;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_xBP] = pSrcCtx->Ebp;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_xSI] = pSrcCtx->Esi;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_xDI] = pSrcCtx->Edi;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aSRegs[X86_SREG_ES] = pSrcCtx->SegEs;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aSRegs[X86_SREG_CS] = pSrcCtx->SegCs;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aSRegs[X86_SREG_SS] = pSrcCtx->SegSs;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aSRegs[X86_SREG_DS] = pSrcCtx->SegDs;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aSRegs[X86_SREG_FS] = pSrcCtx->SegFs;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.aSRegs[X86_SREG_GS] = pSrcCtx->SegGs;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync if (pSrcCtx->ContextFlags & CONTEXT_FLOATING_POINT)
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync if (pSrcCtx->ContextFlags & CONTEXT_EXTENDED_REGISTERS)
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync if (pSrcCtx->ContextFlags & CONTEXT_DEBUG_REGISTERS)
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Add/Adjust CPU state information according to the exception code.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.cr2 = pXcptPtrs->ExceptionRecord->ExceptionInformation[1];
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync if (pXcptPtrs->ExceptionRecord->ExceptionInformation[0] == EXCEPTION_WRITE_FAULT)
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync else if (pXcptPtrs->ExceptionRecord->ExceptionInformation[0] == EXCEPTION_EXECUTE_FAULT)
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync else if (pXcptPtrs->ExceptionRecord->ExceptionInformation[0] != EXCEPTION_READ_FAULT)
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync if (VirtualQuery((PVOID)pXcptPtrs->ExceptionRecord->ExceptionInformation[1], &MemInfo, sizeof(MemInfo)) > 0)
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.ActualCtx.uXcpt = pXcptPtrs->ExceptionRecord->ExceptionCode;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Our own personal long jump implementation.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /* Won't return...*/
694eb5fb2b25736d37902333e059a149f78c563cvboxsync * Vectored exception handler.
694eb5fb2b25736d37902333e059a149f78c563cvboxsync * @returns Long jumps or terminates the process.
694eb5fb2b25736d37902333e059a149f78c563cvboxsync * @param pXcptPtrs The exception record.
694eb5fb2b25736d37902333e059a149f78c563cvboxsyncstatic LONG CALLBACK CidetAppVectoredXcptHandler(EXCEPTION_POINTERS *pXcptPtrs)
694eb5fb2b25736d37902333e059a149f78c563cvboxsync RTStrmPrintf(g_pStdErr, "CidetAppVectoredXcptHandler!\n");
694eb5fb2b25736d37902333e059a149f78c563cvboxsync /* won't get here. */
694eb5fb2b25736d37902333e059a149f78c563cvboxsync * Unhandled exception filter.
694eb5fb2b25736d37902333e059a149f78c563cvboxsync * @returns Long jumps or terminates the process.
694eb5fb2b25736d37902333e059a149f78c563cvboxsync * @param pXcptPtrs The exception record.
694eb5fb2b25736d37902333e059a149f78c563cvboxsyncstatic LONG CALLBACK CidetAppUnhandledXcptFilter(EXCEPTION_POINTERS *pXcptPtrs)
694eb5fb2b25736d37902333e059a149f78c563cvboxsync RTStrmPrintf(g_pStdErr, "CidetAppUnhandledXcptFilter!\n");
694eb5fb2b25736d37902333e059a149f78c563cvboxsync /* won't get here. */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Signal handler.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsyncstatic void CidetAppSigHandler(int iSignal, siginfo_t *pSigInfo, void *pvCtx)
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync RTStrmPrintf(g_pStdErr, "signal %d pSigInfo=%p pvCtx=%p", iSignal, pSigInfo, pvCtx);
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync RTStrmPrintf(g_pStdErr, " si_addr=%p si_code=%#x sival_ptr=%p sival_int=%d",
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pSigInfo->si_addr, pSigInfo->si_code, pSigInfo->si_value.sival_ptr, pSigInfo->si_value.sival_int);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Grab the this point. We expect at most one signal.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /* we're up the infamous creek... */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Gather all the CPU state information available.
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync ucontext_t const *pCtx = (ucontext_t const *)pvCtx;
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_xAX] = pCtx->uc_mcontext.gregs[REG_RAX];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_xCX] = pCtx->uc_mcontext.gregs[REG_RCX];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_xDX] = pCtx->uc_mcontext.gregs[REG_RDX];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_xBX] = pCtx->uc_mcontext.gregs[REG_RBX];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_xSP] = pCtx->uc_mcontext.gregs[REG_RSP];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_xBP] = pCtx->uc_mcontext.gregs[REG_RBP];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_xSI] = pCtx->uc_mcontext.gregs[REG_RSI];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_xDI] = pCtx->uc_mcontext.gregs[REG_RDI];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_x8 ] = pCtx->uc_mcontext.gregs[REG_R8];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_x9 ] = pCtx->uc_mcontext.gregs[REG_R9];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_x10] = pCtx->uc_mcontext.gregs[REG_R10];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_x11] = pCtx->uc_mcontext.gregs[REG_R11];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_x12] = pCtx->uc_mcontext.gregs[REG_R12];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_x13] = pCtx->uc_mcontext.gregs[REG_R13];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_x14] = pCtx->uc_mcontext.gregs[REG_R14];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_x15] = pCtx->uc_mcontext.gregs[REG_R15];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aSRegs[X86_SREG_CS] = RT_LO_U16((uint32_t)pCtx->uc_mcontext.gregs[REG_CSGSFS]);
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aSRegs[X86_SREG_GS] = RT_HI_U16((uint32_t)pCtx->uc_mcontext.gregs[REG_CSGSFS]);
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aSRegs[X86_SREG_FS] = (uint16_t)RT_HI_U32(pCtx->uc_mcontext.gregs[REG_CSGSFS]);
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aSRegs[X86_SREG_DS] = ASMGetDS();
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aSRegs[X86_SREG_ES] = ASMGetES();
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aSRegs[X86_SREG_SS] = ASMGetSS();
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.rip = pCtx->uc_mcontext.gregs[REG_RIP];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.rfl = pCtx->uc_mcontext.gregs[REG_EFL];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.cr2 = pCtx->uc_mcontext.gregs[REG_CR2];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.uXcpt = pCtx->uc_mcontext.gregs[REG_TRAPNO];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.uErr = pCtx->uc_mcontext.gregs[REG_ERR];
fdf66bdf7b03d58ec33dbc065f2d28e1f7d4986avboxsync /* Fudge the FS and GS registers as setup_sigcontext returns 0. */
fdf66bdf7b03d58ec33dbc065f2d28e1f7d4986avboxsync if (pThis->Core.ActualCtx.aSRegs[X86_SREG_FS] == 0)
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aSRegs[X86_SREG_FS] = pThis->Core.ExpectedCtx.aSRegs[X86_SREG_FS];
fdf66bdf7b03d58ec33dbc065f2d28e1f7d4986avboxsync if (pThis->Core.ActualCtx.aSRegs[X86_SREG_GS] == 0)
fdf66bdf7b03d58ec33dbc065f2d28e1f7d4986avboxsync pThis->Core.ActualCtx.aSRegs[X86_SREG_GS] = pThis->Core.ExpectedCtx.aSRegs[X86_SREG_GS];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_xAX] = pCtx->uc_mcontext.gregs[REG_EAX];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_xCX] = pCtx->uc_mcontext.gregs[REG_ECX];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_xDX] = pCtx->uc_mcontext.gregs[REG_EDX];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_xBX] = pCtx->uc_mcontext.gregs[REG_EBX];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_xSP] = pCtx->uc_mcontext.gregs[REG_ESP];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_xBP] = pCtx->uc_mcontext.gregs[REG_EBP];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_xSI] = pCtx->uc_mcontext.gregs[REG_ESI];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aGRegs[X86_GREG_xDI] = pCtx->uc_mcontext.gregs[REG_EDI];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aSRegs[X86_SREG_CS] = pCtx->uc_mcontext.gregs[REG_CS];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aSRegs[X86_SREG_DS] = pCtx->uc_mcontext.gregs[REG_DS];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aSRegs[X86_SREG_ES] = pCtx->uc_mcontext.gregs[REG_ES];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aSRegs[X86_SREG_FS] = pCtx->uc_mcontext.gregs[REG_FS];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aSRegs[X86_SREG_GS] = pCtx->uc_mcontext.gregs[REG_GS];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.aSRegs[X86_SREG_SS] = pCtx->uc_mcontext.gregs[REG_SS];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.rip = pCtx->uc_mcontext.gregs[REG_EIP];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.rfl = pCtx->uc_mcontext.gregs[REG_EFL];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.uXcpt = pCtx->uc_mcontext.gregs[REG_TRAPNO];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync pThis->Core.ActualCtx.uErr = pCtx->uc_mcontext.gregs[REG_ERR];
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync /* Adjust uErr. */
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync /* Fudge the resume flag (it's probably always set here). */
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync /** @todo */
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync * Check for the 'lock int3' instruction used for tricky stacks.
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync && pThis->Core.ActualCtx.rip == pThis->Core.CodeBuf.uEffBufAddr - pThis->Core.CodeBuf.offSegBase
305cd720ec3a20d3d646c145cb301cb6c1a385e8vboxsync + pThis->Core.CodeBuf.offActive + pThis->Core.CodeBuf.cbActive )
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Jump back to CidetAppCbExecute.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Buffer handling
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Buffer handling
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Buffer handling
3bc264992af3416ecba168e6ffae1a334fe79088vboxsyncstatic int cidetAppAllocateAndConfigureOneBuffer(PCIDETAPP pThis, PCIDETAPPBUF pBuf, uint16_t idxBuf, bool fIsCode,
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync static uint8_t const s_afBufProtToDefaultMemProt[] =
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /* [1] = */ RTMEM_PROT_READ | RTMEM_PROT_WRITE | RTMEM_PROT_EXEC,
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /* [5] = */ RTMEM_PROT_READ | RTMEM_PROT_WRITE | RTMEM_PROT_EXEC,
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /* [6] = */ RTMEM_PROT_READ | RTMEM_PROT_WRITE | RTMEM_PROT_EXEC,
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /* [7] = */ RTMEM_PROT_READ | RTMEM_PROT_WRITE | RTMEM_PROT_EXEC,
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync static uint8_t const s_afBufProtToLastPageMemProt[] =
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /* [1] = */ RTMEM_PROT_READ | RTMEM_PROT_WRITE | RTMEM_PROT_EXEC,
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pBuf->fDefaultProt = s_afBufProtToDefaultMemProt[fFlags & CIDETBUF_PROT_MASK];
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pBuf->fLastPageProt = s_afBufProtToLastPageMemProt[fFlags & CIDETBUF_PROT_MASK];
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Allocate a 3 page buffer plus two fence pages.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pBuf->cb = fIsCode ? CIDET_CODE_BUF_SIZE : CIDET_DATA_BUF_SIZE;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pBuf->pbNormal = (uint8_t *)RTMemPageAlloc(PAGE_SIZE + pBuf->cb + PAGE_SIZE);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync memset(pBuf->pbNormal + PAGE_SIZE, 0xcc, pBuf->cb);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync memset(pBuf->pbNormal + PAGE_SIZE + pBuf->cb, 0x77, PAGE_SIZE);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /* Set up fence pages. */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync rc = RTMemProtect(pBuf->pbNormal, PAGE_SIZE, RTMEM_PROT_NONE); /* fence */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync rc = RTMemProtect(pBuf->pbNormal + PAGE_SIZE + pBuf->cb, PAGE_SIZE, RTMEM_PROT_NONE); /* fence */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /* Default protection + read + write. */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync rc = RTMemProtect(pBuf->pbNormal, pBuf->cb, pBuf->fDefaultProt | RTMEM_PROT_READ | RTMEM_PROT_WRITE);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Allocate a low memory buffer or LDT if necessary.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync && (uintptr_t)pBuf->pbNormal + pBuf->cb > RT_BIT_64(sizeof(uintptr_t) / 2 * 8))
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /** @todo Buffers for the other addressing mode. */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync rc = RTTestIFailedRc(VERR_NO_PAGE_MEMORY, "Error allocating three pages.");
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync rc = RTTestIFailedRc(VERR_NO_PAGE_MEMORY, "Unsupported buffer config: fFlags=%#x, idxBuf=%u", fFlags, idxBuf);
694eb5fb2b25736d37902333e059a149f78c563cvboxsync RTMemProtect(pBuf->pbNormal - PAGE_SIZE, PAGE_SIZE + pBuf->cb + PAGE_SIZE, RTMEM_PROT_READ | RTMEM_PROT_WRITE);
694eb5fb2b25736d37902333e059a149f78c563cvboxsync RTMemPageFree(pBuf->pbNormal - PAGE_SIZE, PAGE_SIZE + pBuf->cb + PAGE_SIZE);
694eb5fb2b25736d37902333e059a149f78c563cvboxsync RTMemProtect(pBuf->pbLow, pBuf->cb, RTMEM_PROT_READ | RTMEM_PROT_WRITE);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsyncstatic bool CidetAppArmBuf(PCIDETAPP pThis, PCIDETAPPBUF pAppBuf)
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync uint8_t *pbUsingBuf = (pAppBuf->fUsingNormal ? pAppBuf->pbNormal : pAppBuf->pbLow);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync if (pAppBuf->fLastPageProt == pAppBuf->fDefaultProt)
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync if ((pAppBuf->fDefaultProt & (RTMEM_PROT_READ | RTMEM_PROT_WRITE)) != (RTMEM_PROT_READ | RTMEM_PROT_WRITE))
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync RTTESTI_CHECK_RC_RET(RTMemProtect(pbUsingBuf, pAppBuf->cb, pAppBuf->fDefaultProt), VINF_SUCCESS, false);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync if ((pAppBuf->fDefaultProt & (RTMEM_PROT_READ | RTMEM_PROT_WRITE)) != (RTMEM_PROT_READ | RTMEM_PROT_WRITE))
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync RTTESTI_CHECK_RC_RET(RTMemProtect(pbUsingBuf, pAppBuf->cb - PAGE_SIZE, pAppBuf->fDefaultProt), VINF_SUCCESS, false);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync RTTESTI_CHECK_RC_RET(RTMemProtect(pbUsingBuf + pAppBuf->cb - PAGE_SIZE, PAGE_SIZE, pAppBuf->fLastPageProt),
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync return true;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsyncstatic bool CidetAppDearmBuf(PCIDETAPP pThis, PCIDETAPPBUF pAppBuf)
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync uint8_t *pbUsingBuf = (pAppBuf->fUsingNormal ? pAppBuf->pbNormal : pAppBuf->pbLow);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync int rc = RTMemProtect(pbUsingBuf, pAppBuf->cb, pAppBuf->fDefaultProt | RTMEM_PROT_READ | RTMEM_PROT_WRITE);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync RTTestIFailed("RTMemProtect failed on %s buf #%u: %Rrc", pAppBuf->fIsCode ? "code" : "data", pAppBuf->idxCfg, rc);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync return false;
694eb5fb2b25736d37902333e059a149f78c563cvboxsync return true;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * @interface_method_impl{CIDETCORE::pfnReInitDataBuf}
3bc264992af3416ecba168e6ffae1a334fe79088vboxsyncstatic DECLCALLBACK(bool) CidetAppCbReInitDataBuf(PCIDETCORE pThis, PCIDETBUF pBuf)
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync PCIDETAPPBUF pAppBuf = &pThisApp->aDataBuffers[pBuf->idxCfg];
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * De-arm the buffer.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync if (RT_UNLIKELY(!CidetAppDearmBuf(pThisApp, pAppBuf)))
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync return false;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Check the allocation requirements.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync if (RT_UNLIKELY((size_t)pBuf->off + pBuf->cb > pAppBuf->cb))
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync RTTestIFailed("Buffer too small; off=%#x cb=%#x pAppBuf->cb=%#x (%s)",
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pBuf->off, pBuf->cb, pAppBuf->cb, pBuf->pCfg->pszName);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync return false;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Do we need to use the low buffer? Check that we have one, if we need it.
9f4f6a59c4f15adc4398bdfbf271ffd2ef521085vboxsync bool fUseNormal = pThis->cbAddrMode == ARCH_BITS / 8;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync return false;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Update the state.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync return true;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * @interface_method_impl{CIDETCORE::pfnSetupDataBuf}
3bc264992af3416ecba168e6ffae1a334fe79088vboxsyncstatic DECLCALLBACK(bool) CidetAppCbSetupDataBuf(PCIDETCORE pThis, PCIDETBUF pBuf, void const *pvSrc)
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync PCIDETAPPBUF pAppBuf = &pThisApp->aDataBuffers[pBuf->idxCfg];
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Copy over the data.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync uint8_t *pbUsingBuf = (pAppBuf->fUsingNormal ? pAppBuf->pbNormal : pAppBuf->pbLow);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync memcpy(pbUsingBuf + pBuf->offActive, pvSrc, pBuf->cbActive);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Arm the buffer.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * @interface_method_impl{CIDETCORE::pfnIsBufEqual}
3bc264992af3416ecba168e6ffae1a334fe79088vboxsyncstatic DECLCALLBACK(bool) CidetAppCbIsBufEqual(PCIDETCORE pThis, struct CIDETBUF *pBuf, void const *pvExpected)
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync PCIDETAPPBUF pAppBuf = CIDETBUF_IS_CODE(pBuf->pCfg->fFlags)
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Disarm the buffer if we can't read it all.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync if (RT_UNLIKELY(!CidetAppDearmBuf(pThisApp, pAppBuf)))
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync return false;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Do the comparing.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync uint8_t *pbUsingBuf = (pAppBuf->fUsingNormal ? pAppBuf->pbNormal : pAppBuf->pbLow);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync if (memcmp(pbUsingBuf + pBuf->offActive, pvExpected, pBuf->cbActive) != 0)
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /** @todo RTMEM_PROT_NONE may kill content on some hosts... */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync return false;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /** @todo check padding. */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync return true;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Code buffer, prologue, epilogue, and execution.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Code buffer, prologue, epilogue, and execution.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Code buffer, prologue, epilogue, and execution.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * @interface_method_impl{CIDETCORE::pfnReInitCodeBuf}
3bc264992af3416ecba168e6ffae1a334fe79088vboxsyncstatic DECLCALLBACK(bool) CidetAppCbReInitCodeBuf(PCIDETCORE pThis, PCIDETBUF pBuf)
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync PCIDETAPPBUF pAppBuf = &pThisApp->aCodeBuffers[pBuf->idxCfg];
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * De-arm the buffer.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync if (RT_UNLIKELY(!CidetAppDearmBuf(pThisApp, pAppBuf)))
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync return false;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Determin the prologue and epilogue sizes.
694eb5fb2b25736d37902333e059a149f78c563cvboxsync uint16_t cbEpilogue = ARCH_BITS == 64 ? 0x56 : 0x4e;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Check the allocation requirements.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync || (size_t)pBuf->off + pBuf->cb + cbEpilogue > pAppBuf->cb))
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync RTTestIFailed("Buffer too small; off=%#x cb=%#x cbPro=%#x cbEpi=%#x pAppBuf->cb=%#x (%s)",
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pBuf->off, pBuf->cb, cbPrologue, cbEpilogue, pAppBuf->cb, pBuf->pCfg->pszName);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync return false;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Update the state.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync return true;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * @interface_method_impl{CIDETCORE::pfnSetupCodeBuf}
3bc264992af3416ecba168e6ffae1a334fe79088vboxsyncstatic DECLCALLBACK(bool) CidetAppCbSetupCodeBuf(PCIDETCORE pThis, PCIDETBUF pBuf, void const *pvInstr)
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync PCIDETAPPBUF pAppBuf =&pThisApp->aCodeBuffers[pBuf->idxCfg];
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Emit prologue code.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync uint8_t *pbDst = pAppBuf->pbNormal + pBuf->offActive - pBuf->cbPrologue;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Copy over the code.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync Assert(pbDst == &pAppBuf->pbNormal[pBuf->offActive]);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Emit epilogue code.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * The stack is reasonably good, do minimal work.
694eb5fb2b25736d37902333e059a149f78c563cvboxsync * Note! Ideally, we would just fill in 16 int3s here and check that
694eb5fb2b25736d37902333e059a149f78c563cvboxsync * we hit the first right one. However, if we wish to run this
694eb5fb2b25736d37902333e059a149f78c563cvboxsync * code with IEM, we better skip unnecessary trips to ring-0.
694eb5fb2b25736d37902333e059a149f78c563cvboxsync /* jmp $+6 */
694eb5fb2b25736d37902333e059a149f78c563cvboxsync *pbDst++ = 0x06; /* This is a push es, so if the decoder is one off, we'll hit the int 3 below. */
694eb5fb2b25736d37902333e059a149f78c563cvboxsync /* Six int3s for trapping incorrectly decoded instructions. */
694eb5fb2b25736d37902333e059a149f78c563cvboxsync /* push rip / call $+0 */
c7522a3707ee4cc598fcb8d20bf679649dba09b3vboxsync uint8_t offRipAdjust = (uint8_t)(uintptr_t)(pbStartEpilogue - pbDst);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /* push xCX */
694eb5fb2b25736d37902333e059a149f78c563cvboxsync /* mov xCX, [xSP + xCB] */
c7522a3707ee4cc598fcb8d20bf679649dba09b3vboxsync /* lea xCX, [xCX - 24] */
694eb5fb2b25736d37902333e059a149f78c563cvboxsync /* mov xCX, [xSP + xCB] */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /* mov xCX, &pThis->ActualCtx */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync *(uintptr_t *)pbDst = (uintptr_t)&pThisApp->Core.ActualCtx;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /* pop [ss:rcx + ActualCtx.aGRegs[X86_GREG_xCX]] */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync *pbDst++ = RT_OFFSETOF(CIDETCPUCTX, aGRegs[X86_GREG_xCX]);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync Assert(RT_OFFSETOF(CIDETCPUCTX, aGRegs[X86_GREG_xCX]) < 0x7f);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /* mov [ss:rcx + ActualCtx.aGRegs[X86_GREG_xDX]], rdx */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync *pbDst++ = RT_OFFSETOF(CIDETCPUCTX, aGRegs[X86_GREG_xDX]);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync Assert(RT_OFFSETOF(CIDETCPUCTX, aGRegs[X86_GREG_xDX]) < 0x7f);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /* mov [ss:rcx + ActualCtx.aSRegs[X86_GREG_DS]], ds */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync *(uint32_t *)pbDst = RT_OFFSETOF(CIDETCPUCTX, aSRegs[X86_SREG_DS]);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /* mov edx, 0XXYYh */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync *(uint32_t *)pbDst = pThisApp->Core.InTemplateCtx.aSRegs[X86_SREG_DS];
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /* mov ds, dx */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /* mov xDX, &pThisApp->ExecuteCtx */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync *(uintptr_t *)pbDst = (uintptr_t)&pThisApp->ExecuteCtx;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /* jmp [cs:$ wrt rip] */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /* jmp NAME(CidetAppSaveAndRestoreCtx) */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync *(uintptr_t *)pbDst = (uintptr_t)CidetAppSaveAndRestoreCtx;
694eb5fb2b25736d37902333e059a149f78c563cvboxsync * Tricky stack, so just make it raise #UD after a successful run.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync AssertMsg(pbDst == &pAppBuf->pbNormal[pBuf->offActive + pBuf->cb + pBuf->cbEpilogue],
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync ("cbEpilogue=%#x, actual %#x\n", pBuf->cbEpilogue, pbDst - &pAppBuf->pbNormal[pBuf->offActive + pBuf->cb]));
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Arm the buffer.
694eb5fb2b25736d37902333e059a149f78c563cvboxsync * @interface_method_impl{CIDETCORE::pfnExecute}
694eb5fb2b25736d37902333e059a149f78c563cvboxsyncstatic DECLCALLBACK(bool) CidetAppCbExecute(PCIDETCORE pThis)
694eb5fb2b25736d37902333e059a149f78c563cvboxsync /* Skip tricky stack because windows cannot dispatch exception if RSP/ESP is bad. */
694eb5fb2b25736d37902333e059a149f78c563cvboxsync return false;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync CidetAppExecute(&((PCIDETAPP)pThis)->ExecuteCtx, &pThis->InCtx);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync __except (CidetAppXcptFilter(GetExceptionInformation()))
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /* Won't end up here... */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync CidetAppExecute(&((PCIDETAPP)pThis)->ExecuteCtx, &pThis->InCtx);
c7522a3707ee4cc598fcb8d20bf679649dba09b3vboxsync RTTESTI_CHECK_RC(sigprocmask(SIG_SETMASK, &g_ProcSigMask, NULL), 0);
c7522a3707ee4cc598fcb8d20bf679649dba09b3vboxsync RTTESTI_CHECK_RC(sigaltstack(&g_AltStack, NULL), 0);
694eb5fb2b25736d37902333e059a149f78c563cvboxsync return true;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * CIDET Application.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * CIDET Application.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * CIDET Application.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * @interface_method_impl{CIDETCORE::pfnSetupBuf}
3bc264992af3416ecba168e6ffae1a334fe79088vboxsyncstatic DECLCALLBACK(void) CidetAppCbFailureV(PCIDETCORE pThis, const char *pszMsg, va_list va)
3bc264992af3416ecba168e6ffae1a334fe79088vboxsyncstatic int cidetAppAllocateAndConfigureBuffers(PCIDETAPP pThis)
694eb5fb2b25736d37902333e059a149f78c563cvboxsync * Code buffers.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync for (uint32_t i = 0; i < RT_ELEMENTS(pThis->aCodeBuffers); i++)
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync int rc = cidetAppAllocateAndConfigureOneBuffer(pThis, &pThis->aCodeBuffers[i], i, true /*fCode*/,
694eb5fb2b25736d37902333e059a149f78c563cvboxsync * Data buffers.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync for (uint32_t i = 0; i < RT_ELEMENTS(pThis->aDataBuffers); i++)
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync int rc = cidetAppAllocateAndConfigureOneBuffer(pThis, &pThis->aDataBuffers[i], i, false /*fCode*/,
694eb5fb2b25736d37902333e059a149f78c563cvboxsync pThis->pbStackLow = (uint8_t *)RTMemPageAlloc(pThis->cbStack);
694eb5fb2b25736d37902333e059a149f78c563cvboxsync RTTestIFailed("Failed to allocate %u bytes for stack\n", pThis->cbStack);
694eb5fb2b25736d37902333e059a149f78c563cvboxsync return false;
694eb5fb2b25736d37902333e059a149f78c563cvboxsync pThis->pbStackEnd = pThis->pbStackLow + pThis->cbStack;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync return true;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync PCIDETAPP pThis = (PCIDETAPP)RTMemAlloc(sizeof(*pThis));
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync return RTTestIFailedRc(VERR_NO_MEMORY, "Error allocating %zu bytes.", sizeof(*pThis));
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /* Create a random source. */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync RTTestIPrintf(RTTESTLVL_ALWAYS, "Random seed %#llx\n", uSeed);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync /* Initialize the CIDET structure. */
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.pfnReInitDataBuf = CidetAppCbReInitDataBuf;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.pfnSetupDataBuf = CidetAppCbSetupDataBuf;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.pfnReInitCodeBuf = CidetAppCbReInitCodeBuf;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.pfnSetupCodeBuf = CidetAppCbSetupCodeBuf;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.cCodeBufConfigs = CIDETAPP_CODE_BUF_COUNT;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.cDataBufConfigs = CIDETAPP_DATA_BUF_COUNT;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync rc = CidetCoreSetTargetMode(&pThis->Core, ARCH_BITS == 32 ? CIDETMODE_PP_32 : CIDETMODE_LM_64);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.InTemplateCtx.aSRegs[X86_SREG_CS] = ASMGetCS();
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.InTemplateCtx.aSRegs[X86_SREG_DS] = ASMGetDS();
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.InTemplateCtx.aSRegs[X86_SREG_ES] = ASMGetES();
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.InTemplateCtx.aSRegs[X86_SREG_FS] = ASMGetFS();
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.InTemplateCtx.aSRegs[X86_SREG_GS] = ASMGetGS();
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync pThis->Core.InTemplateCtx.aSRegs[X86_SREG_SS] = ASMGetSS();
694eb5fb2b25736d37902333e059a149f78c563cvboxsync pThis->Core.InTemplateCtx.aGRegs[X86_GREG_xSP] = (uintptr_t)pThis->pbStackEnd - 64;
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync rc = RTTestIFailedRc(rc, "Error setting target mode: %Rrc", rc);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync rc = RTTestIFailedRc(rc, "CidetCoreInit failed: %Rrc", rc);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync rc = RTTestIFailedRc(rc, "RTRandAdvCreate failed: %Rrc", rc);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync for (uint32_t i = 0; i < RT_ELEMENTS(pThis->aCodeBuffers); i++)
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync for (uint32_t i = 0; i < RT_ELEMENTS(pThis->aDataBuffers); i++)
3bc264992af3416ecba168e6ffae1a334fe79088vboxsyncstatic void CidetAppTestBunch(PCIDETAPP pThis, PCCIDETINSTR paInstructions, uint32_t cInstructions, const char *pszBunchName)
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync for (uint32_t iInstr = 0; iInstr < cInstructions; iInstr++)
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync RTTestSubF(g_hTest, "%s - %s", pszBunchName, paInstructions[iInstr].pszMnemonic);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync CidetCoreTestInstruction(&pThis->Core, &paInstructions[iInstr]);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Initialize the runtime.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync RTEXITCODE rcExit = RTTestInitExAndCreate(argc, &argv, 0, "cidet-app", &g_hTest);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Parse arguments.
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync RTGetOptInit(&GetState, argc, argv, s_aOptions, RT_ELEMENTS(s_aOptions), 1, 0);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync RTPrintf("%sr%d\n", RTBldCfgVersion(), RTBldCfgRevision());
694eb5fb2b25736d37902333e059a149f78c563cvboxsync * Set up signal handlers with alternate stack.
c7522a3707ee4cc598fcb8d20bf679649dba09b3vboxsync /* Get the default signal mask. */
c7522a3707ee4cc598fcb8d20bf679649dba09b3vboxsync RTTESTI_CHECK_RC_RET(sigprocmask(SIG_BLOCK, NULL, &g_ProcSigMask), 0, RTEXITCODE_FAILURE);
694eb5fb2b25736d37902333e059a149f78c563cvboxsync /* Alternative stack so we can play with esp/rsp. */
5979821e2c16d1fcec5b9a3ef64e13246fc9a93avboxsync g_AltStack.ss_sp = (char *)RTMemPageAlloc(g_AltStack.ss_size);
c7522a3707ee4cc598fcb8d20bf679649dba09b3vboxsync g_AltStack.ss_sp = RTMemPageAlloc(g_AltStack.ss_size);
c7522a3707ee4cc598fcb8d20bf679649dba09b3vboxsync RTTESTI_CHECK_RET(g_AltStack.ss_sp != NULL, RTEXITCODE_FAILURE);
c7522a3707ee4cc598fcb8d20bf679649dba09b3vboxsync RTTESTI_CHECK_RC_RET(sigaltstack(&g_AltStack, NULL), 0, RTEXITCODE_FAILURE);
694eb5fb2b25736d37902333e059a149f78c563cvboxsync /* Default signal action config. */
694eb5fb2b25736d37902333e059a149f78c563cvboxsync /* Hook the signals we might need. */
694eb5fb2b25736d37902333e059a149f78c563cvboxsync * Register vectored exception handler and override the default unhandled
694eb5fb2b25736d37902333e059a149f78c563cvboxsync * exception filter, just to be on the safe side...
694eb5fb2b25736d37902333e059a149f78c563cvboxsync RTTESTI_CHECK(AddVectoredExceptionHandler(1 /* first */, CidetAppVectoredXcptHandler) != NULL);
694eb5fb2b25736d37902333e059a149f78c563cvboxsync SetUnhandledExceptionFilter(CidetAppUnhandledXcptFilter);
3bc264992af3416ecba168e6ffae1a334fe79088vboxsync * Do the work.