/* $Id: tstVMStructSize.cpp 21989 2009-08-05 12:22:13Z vboxsync $ */ /** @file * tstVMStructSize - testcase for check structure sizes/alignment * and to verify that HC and GC uses the same * representation of the structures. */ /* * Copyright (C) 2006-2007 Sun Microsystems, Inc. * * This file is part of VirtualBox Open Source Edition (OSE), as * available from http://www.virtualbox.org. This file is free software; * you can redistribute it and/or modify it under the terms of the GNU * General Public License (GPL) as published by the Free Software * Foundation, in version 2 as it comes in the "COPYING" file of the * VirtualBox OSE distribution. VirtualBox OSE is distributed in the * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa * Clara, CA 95054 USA or visit http://www.sun.com if you need * additional information or have any questions. */ /******************************************************************************* * Header Files * *******************************************************************************/ #include #include #include #include #include #include #include #include #include "PDMInternal.h" #include #include "CFGMInternal.h" #include "CPUMInternal.h" #include "MMInternal.h" #include "PGMInternal.h" #include "SELMInternal.h" #include "TRPMInternal.h" #include "TMInternal.h" #include "IOMInternal.h" #include "REMInternal.h" #include "SSMInternal.h" #include "HWACCMInternal.h" #include "PATMInternal.h" #ifdef VBOX_WITH_VMI # include "PARAVInternal.h" #endif #include "VMMInternal.h" #include "DBGFInternal.h" #include "STAMInternal.h" #include "VMInternal.h" #include "CSAMInternal.h" #include "EMInternal.h" #include "REMInternal.h" #include #include #include #include "tstHelp.h" #include int main() { int rc = 0; printf("tstVMStructSize: TESTING\n"); printf("struct VM: %d bytes\n", (int)sizeof(VM)); #define CHECK_PADDING_VM(member) \ do \ { \ CHECK_PADDING(VM, member); \ CHECK_MEMBER_ALIGNMENT(VM, member, 32); \ } while (0) #define CHECK_PADDING_VMCPU(member) \ do \ { \ CHECK_PADDING(VMCPU, member); \ CHECK_MEMBER_ALIGNMENT(VMCPU, member, 32); \ } while (0) #define CHECK_CPUMCTXCORE(member) \ do { \ if (RT_OFFSETOF(CPUMCTX, member) - RT_OFFSETOF(CPUMCTX, edi) != RT_OFFSETOF(CPUMCTXCORE, member)) \ { \ printf("CPUMCTX/CORE:: %s!\n", #member); \ rc++; \ } \ } while (0) #define PRINT_OFFSET(strct, member) \ do \ { \ printf("%s::%s offset %#x (%d) sizeof %d\n", #strct, #member, (int)RT_OFFSETOF(strct, member), (int)RT_OFFSETOF(strct, member), (int)RT_SIZEOFMEMB(strct, member)); \ } while (0) CHECK_SIZE(uint128_t, 128/8); CHECK_SIZE(int128_t, 128/8); CHECK_SIZE(uint64_t, 64/8); CHECK_SIZE(int64_t, 64/8); CHECK_SIZE(uint32_t, 32/8); CHECK_SIZE(int32_t, 32/8); CHECK_SIZE(uint16_t, 16/8); CHECK_SIZE(int16_t, 16/8); CHECK_SIZE(uint8_t, 8/8); CHECK_SIZE(int8_t, 8/8); CHECK_SIZE(X86DESC, 8); CHECK_SIZE(X86DESC64, 16); CHECK_SIZE(VBOXIDTE, 8); CHECK_SIZE(VBOXIDTR, 10); CHECK_SIZE(VBOXGDTR, 10); CHECK_SIZE(VBOXTSS, 136); CHECK_SIZE(X86FXSTATE, 512); CHECK_SIZE(RTUUID, 16); CHECK_SIZE(X86PTE, 4); CHECK_SIZE(X86PD, PAGE_SIZE); CHECK_SIZE(X86PDE, 4); CHECK_SIZE(X86PT, PAGE_SIZE); CHECK_SIZE(X86PTEPAE, 8); CHECK_SIZE(X86PTPAE, PAGE_SIZE); CHECK_SIZE(X86PDEPAE, 8); CHECK_SIZE(X86PDPAE, PAGE_SIZE); CHECK_SIZE(X86PDPE, 8); CHECK_SIZE(X86PDPT, PAGE_SIZE); CHECK_SIZE(X86PML4E, 8); CHECK_SIZE(X86PML4, PAGE_SIZE); CHECK_PADDING_VM(cfgm); CHECK_PADDING_VM(cpum); CHECK_PADDING_VM(dbgf); CHECK_PADDING_VM(em); CHECK_PADDING_VM(iom); CHECK_PADDING_VM(mm); CHECK_PADDING_VM(pdm); CHECK_PADDING_VM(pgm); CHECK_PADDING_VM(selm); CHECK_PADDING_VM(tm); CHECK_PADDING_VM(trpm); CHECK_PADDING_VM(vm); CHECK_PADDING_VM(vmm); CHECK_PADDING_VM(ssm); CHECK_PADDING_VM(rem); CHECK_PADDING_VM(hwaccm); CHECK_PADDING_VM(patm); CHECK_PADDING_VM(csam); CHECK_PADDING_VMCPU(cpum); CHECK_PADDING_VMCPU(pgm); CHECK_PADDING_VMCPU(em); CHECK_PADDING_VMCPU(hwaccm); CHECK_PADDING_VMCPU(trpm); CHECK_PADDING_VMCPU(tm); CHECK_PADDING_VMCPU(vmm); CHECK_MEMBER_ALIGNMENT(VM, selm.s.Tss, 16); PRINT_OFFSET(VM, selm.s.Tss); PVM pVM; if ((RT_OFFSETOF(VM, selm.s.Tss) & PAGE_OFFSET_MASK) > PAGE_SIZE - sizeof(pVM->selm.s.Tss)) { printf("SELM:Tss is crossing a page!\n"); rc++; } PRINT_OFFSET(VM, selm.s.TssTrap08); if ((RT_OFFSETOF(VM, selm.s.TssTrap08) & PAGE_OFFSET_MASK) > PAGE_SIZE - sizeof(pVM->selm.s.TssTrap08)) { printf("SELM:TssTrap08 is crossing a page!\n"); rc++; } CHECK_MEMBER_ALIGNMENT(VM, trpm.s.aIdt, 16); CHECK_MEMBER_ALIGNMENT(VM, cpum, 64); CHECK_MEMBER_ALIGNMENT(VM, aCpus[0], 64); CHECK_MEMBER_ALIGNMENT(VM, aCpus[1], 64); CHECK_MEMBER_ALIGNMENT(VM, aCpus[0].cpum, 64); CHECK_MEMBER_ALIGNMENT(VM, aCpus[0].hwaccm, 64); CHECK_MEMBER_ALIGNMENT(VM, aCpus[0].pgm, 64); CHECK_MEMBER_ALIGNMENT(VM, aCpus[0].em, 64); CHECK_MEMBER_ALIGNMENT(VM, aCpus[0].tm, 64); CHECK_MEMBER_ALIGNMENT(VM, aCpus[0].vmm, 64); CHECK_MEMBER_ALIGNMENT(VM, aCpus[0].cpum.s.Host, 64); CHECK_MEMBER_ALIGNMENT(VM, aCpus[0].cpum.s.Guest, 64); CHECK_MEMBER_ALIGNMENT(VM, aCpus[1].cpum.s.Host, 64); CHECK_MEMBER_ALIGNMENT(VM, aCpus[1].cpum.s.Guest, 64); CHECK_MEMBER_ALIGNMENT(VM, aCpus[0].cpum.s.Hyper, 64); CHECK_MEMBER_ALIGNMENT(VM, aCpus[1].cpum.s.Hyper, 64); CHECK_MEMBER_ALIGNMENT(VM, cpum.s.GuestEntry, 64); CHECK_MEMBER_ALIGNMENT(VMCPU, vmm.s.u64CallRing3Arg, 8); #if defined(RT_OS_WINDOWS) && defined(RT_ARCH_AMD64) CHECK_MEMBER_ALIGNMENT(VMCPU, vmm.s.CallRing3JmpBufR0, 16); CHECK_MEMBER_ALIGNMENT(VMCPU, vmm.s.CallRing3JmpBufR0.xmm6, 16); #endif CHECK_MEMBER_ALIGNMENT(VM, vmm.s.u64LastYield, 8); CHECK_MEMBER_ALIGNMENT(VM, vmm.s.StatRunRC, 8); CHECK_MEMBER_ALIGNMENT(VM, StatTotalQemuToGC, 8); CHECK_MEMBER_ALIGNMENT(VM, rem.s.uPendingExcptCR2, 8); CHECK_MEMBER_ALIGNMENT(VM, rem.s.StatsInQEMU, 8); CHECK_MEMBER_ALIGNMENT(VM, rem.s.Env, 32); CHECK_MEMBER_ALIGNMENT(VM, aCpus, 64); /* vmcpu */ CHECK_MEMBER_ALIGNMENT(VMCPU, cpum, 64); CHECK_MEMBER_ALIGNMENT(VMCPU, vmm, 32); CHECK_MEMBER_ALIGNMENT(VMCPU, pgm, 32); CHECK_MEMBER_ALIGNMENT(VMCPU, em, 32); CHECK_MEMBER_ALIGNMENT(VMCPU, hwaccm, 32); CHECK_MEMBER_ALIGNMENT(VMCPU, tm, 32); CHECK_SIZE_ALIGNMENT(VMCPU, 32); /* cpumctx */ CHECK_MEMBER_ALIGNMENT(CPUMCTX, fpu, 32); CHECK_MEMBER_ALIGNMENT(CPUMCTX, edi, 32); CHECK_MEMBER_ALIGNMENT(CPUMCTX, idtr, 4); CHECK_MEMBER_ALIGNMENT(CPUMCTX, SysEnter, 8); CHECK_CPUMCTXCORE(eax); CHECK_CPUMCTXCORE(ebx); CHECK_CPUMCTXCORE(ecx); CHECK_CPUMCTXCORE(edx); CHECK_CPUMCTXCORE(ebp); CHECK_CPUMCTXCORE(esp); CHECK_CPUMCTXCORE(edi); CHECK_CPUMCTXCORE(esi); CHECK_CPUMCTXCORE(eip); CHECK_CPUMCTXCORE(eflags); CHECK_CPUMCTXCORE(cs); CHECK_CPUMCTXCORE(ds); CHECK_CPUMCTXCORE(es); CHECK_CPUMCTXCORE(fs); CHECK_CPUMCTXCORE(gs); CHECK_CPUMCTXCORE(ss); CHECK_CPUMCTXCORE(r8); CHECK_CPUMCTXCORE(r9); CHECK_CPUMCTXCORE(r10); CHECK_CPUMCTXCORE(r11); CHECK_CPUMCTXCORE(r12); CHECK_CPUMCTXCORE(r13); CHECK_CPUMCTXCORE(r14); CHECK_CPUMCTXCORE(r15); CHECK_CPUMCTXCORE(esHid); CHECK_CPUMCTXCORE(csHid); CHECK_CPUMCTXCORE(ssHid); CHECK_CPUMCTXCORE(dsHid); CHECK_CPUMCTXCORE(fsHid); CHECK_CPUMCTXCORE(gsHid); #if HC_ARCH_BITS == 32 /* CPUMHOSTCTX - lss pair */ if (RT_OFFSETOF(CPUMHOSTCTX, esp) + 4 != RT_OFFSETOF(CPUMHOSTCTX, ss)) { printf("error: CPUMHOSTCTX lss has been split up!\n"); rc++; } #endif CHECK_SIZE_ALIGNMENT(CPUMCTX, 64); CHECK_SIZE_ALIGNMENT(CPUMHOSTCTX, 64); CHECK_SIZE_ALIGNMENT(CPUMCTXMSR, 64); /* pdm */ CHECK_MEMBER_ALIGNMENT(PDMDEVINS, achInstanceData, 64); CHECK_PADDING(PDMDEVINS, Internal); CHECK_MEMBER_ALIGNMENT(PDMUSBINS, achInstanceData, 16); CHECK_PADDING(PDMUSBINS, Internal); CHECK_MEMBER_ALIGNMENT(PDMDRVINS, achInstanceData, 16); CHECK_PADDING(PDMDRVINS, Internal); CHECK_PADDING2(PDMCRITSECT); CHECK_MEMBER_ALIGNMENT(PGMPOOLPAGE, idx, sizeof(uint16_t)); CHECK_MEMBER_ALIGNMENT(PGMPOOLPAGE, pvPageR3, sizeof(RTHCPTR)); CHECK_MEMBER_ALIGNMENT(PGMPOOLPAGE, GCPhys, sizeof(RTGCPHYS)); CHECK_SIZE(PGMPAGE, 16); CHECK_MEMBER_ALIGNMENT(PGMRAMRANGE, aPages, 16); CHECK_MEMBER_ALIGNMENT(PGMMMIO2RANGE, RamRange, 16); /* rem */ CHECK_MEMBER_ALIGNMENT(REM, aGCPtrInvalidatedPages, 8); CHECK_PADDING3(REMHANDLERNOTIFICATION, u.PhysicalRegister, u.padding); CHECK_PADDING3(REMHANDLERNOTIFICATION, u.PhysicalDeregister, u.padding); CHECK_PADDING3(REMHANDLERNOTIFICATION, u.PhysicalModify, u.padding); CHECK_SIZE_ALIGNMENT(REMHANDLERNOTIFICATION, 8); CHECK_MEMBER_ALIGNMENT(REMHANDLERNOTIFICATION, u.PhysicalDeregister.GCPhys, 8); /* misc */ CHECK_PADDING3(EMCPU, u.FatalLongJump, u.achPaddingFatalLongJump); CHECK_SIZE_ALIGNMENT(VMMR0JMPBUF, 8); CHECK_SIZE_ALIGNMENT(PATCHINFO, 8); #if 0 PRINT_OFFSET(VM, fForcedActions); PRINT_OFFSET(VM, StatQemuToGC); PRINT_OFFSET(VM, StatGCToQemu); #endif /* TM */ CHECK_MEMBER_ALIGNMENT(TM, TimerCritSect, sizeof(uintptr_t)); CHECK_MEMBER_ALIGNMENT(TM, VirtualSyncLock, sizeof(uintptr_t)); CHECK_MEMBER_ALIGNMENT(IOM, EmtLock, sizeof(uintptr_t)); CHECK_MEMBER_ALIGNMENT(EM, CritSectREM, sizeof(uintptr_t)); CHECK_MEMBER_ALIGNMENT(PGM, CritSect, sizeof(uintptr_t)); CHECK_MEMBER_ALIGNMENT(PDM, CritSect, sizeof(uintptr_t)); CHECK_MEMBER_ALIGNMENT(MMHYPERHEAP, Lock, sizeof(uintptr_t)); /* hwaccm - 32-bit gcc won't align uint64_t naturally, so check. */ CHECK_MEMBER_ALIGNMENT(HWACCM, u64RegisterMask, 8); CHECK_MEMBER_ALIGNMENT(HWACCM, vmx.hostCR4, 8); CHECK_MEMBER_ALIGNMENT(HWACCM, vmx.msr.feature_ctrl, 8); CHECK_MEMBER_ALIGNMENT(HWACCM, StatTPRPatchSuccess, 8); CHECK_MEMBER_ALIGNMENT(HWACCMCPU, StatEntry, 8); CHECK_MEMBER_ALIGNMENT(HWACCMCPU, vmx.proc_ctls, 8); CHECK_MEMBER_ALIGNMENT(HWACCMCPU, Event.intInfo, 8); /* The various disassembler state members. */ CHECK_PADDING3(EMCPU, DisState, abDisStatePadding); CHECK_PADDING3(HWACCMCPU, DisState, abDisStatePadding); CHECK_PADDING3(IOMCPU, DisState, abDisStatePadding); CHECK_PADDING3(PGMCPU, DisState, abDisStatePadding); /* Make sure the set is large enough and has the correct size. */ CHECK_SIZE(VMCPUSET, 32); if (sizeof(VMCPUSET) * 8 < VMM_MAX_CPU_COUNT) { printf("error: VMCPUSET is too small for VMM_MAX_CPU_COUNT=%u!\n", VMM_MAX_CPU_COUNT); rc++; } /* * Compare HC and GC. */ printf("tstVMStructSize: Comparing HC and GC...\n"); #include "tstVMStructGC.h" /* * Report result. */ if (rc) printf("tstVMStructSize: FAILURE - %d errors\n", rc); else printf("tstVMStructSize: SUCCESS\n"); return rc; }