/**
* Check a registered module for shared page changes.
*
* The PGM lock shall be taken prior to calling this method.
*
* @returns The following VBox status codes.
*
* @param pVM Pointer to the VM.
* @param pGVM Pointer to the GVM instance data.
* @param idCpu The ID of the calling virtual CPU.
* @param pModule Global module description.
* @param paRegionsGCPtrs Array parallel to pModules->aRegions with the
* addresses of the regions in the calling
* process.
*/
VMMR0DECL(int) PGMR0SharedModuleCheck(PVM pVM, PGVM pGVM, VMCPUID idCpu, PGMMSHAREDMODULE pModule, PCRTGCPTR64 paRegionsGCPtrs)
{
PVMCPU pVCpu = &pVM->aCpus[idCpu];
int rc = VINF_SUCCESS;
bool fFlushTLBs = false;
bool fFlushRemTLBs = false;
GMMSHAREDPAGEDESC PageDesc;
Log(("PGMR0SharedModuleCheck: check %s %s base=%RGv size=%x\n", pModule->szName, pModule->szVersion, pModule->Core.Key, pModule->cbModule));
PGM_LOCK_ASSERT_OWNER(pVM); /* This cannot fail as we grab the lock in pgmR3SharedModuleRegRendezvous before calling into ring-0. */
/*
* Check every region of the shared module.
*/
for (uint32_t idxRegion = 0; idxRegion < pModule->cRegions; idxRegion++)
{
RTGCPTR GCPtrPage = paRegionsGCPtrs[idxRegion] & ~(RTGCPTR)PAGE_OFFSET_MASK;
uint32_t cbLeft = pModule->aRegions[idxRegion].cb; Assert(!(cbLeft & PAGE_OFFSET_MASK));
uint32_t idxPage = 0;
while (cbLeft)
{
/** @todo inefficient to fetch each guest page like this... */
RTGCPHYS GCPhys;
uint64_t fFlags;
rc = PGMGstGetPage(pVCpu, GCPtrPage, &fFlags, &GCPhys);
if ( rc == VINF_SUCCESS
&& !(fFlags & X86_PTE_RW)) /* important as we make assumptions about this below! */
{
PPGMPAGE pPage = pgmPhysGetPage(pVM, GCPhys);
Assert(!pPage || !PGM_PAGE_IS_BALLOONED(pPage));
if ( pPage
&& PGM_PAGE_GET_STATE(pPage) == PGM_PAGE_STATE_ALLOCATED
&& PGM_PAGE_GET_READ_LOCKS(pPage) == 0
&& PGM_PAGE_GET_WRITE_LOCKS(pPage) == 0 )
{
PageDesc.idPage = PGM_PAGE_GET_PAGEID(pPage);
PageDesc.HCPhys = PGM_PAGE_GET_HCPHYS(pPage);
PageDesc.GCPhys = GCPhys;
rc = GMMR0SharedModuleCheckPage(pGVM, pModule, idxRegion, idxPage, &PageDesc);
if (RT_FAILURE(rc))
break;
/*
* Any change for this page?
*/
if (PageDesc.idPage != NIL_GMM_PAGEID)
{
Assert(PGM_PAGE_GET_STATE(pPage) == PGM_PAGE_STATE_ALLOCATED);
Log(("PGMR0SharedModuleCheck: shared page gst virt=%RGv phys=%RGp host %RHp->%RHp\n",
GCPtrPage, PageDesc.GCPhys, PGM_PAGE_GET_HCPHYS(pPage), PageDesc.HCPhys));
/* Page was either replaced by an existing shared
version of it or converted into a read-only shared
page, so, clear all references. */
bool fFlush = false;
rc = pgmPoolTrackUpdateGCPhys(pVM, PageDesc.GCPhys, pPage, true /* clear the entries */, &fFlush);
Assert( rc == VINF_SUCCESS
|| ( VMCPU_FF_IS_SET(pVCpu, VMCPU_FF_PGM_SYNC_CR3)
&& (pVCpu->pgm.s.fSyncFlags & PGM_SYNC_CLEAR_PGM_POOL)));
if (rc == VINF_SUCCESS)
fFlushTLBs |= fFlush;
fFlushRemTLBs = true;
if (PageDesc.HCPhys != PGM_PAGE_GET_HCPHYS(pPage))
{
/* Update the physical address and page id now. */
PGM_PAGE_SET_HCPHYS(pVM, pPage, PageDesc.HCPhys);
PGM_PAGE_SET_PAGEID(pVM, pPage, PageDesc.idPage);
/* Invalidate page map TLB entry for this page too. */
pgmPhysInvalidatePageMapTLBEntry(pVM, PageDesc.GCPhys);
pVM->pgm.s.cReusedSharedPages++;
}
/* else: nothing changed (== this page is now a shared
page), so no need to flush anything. */
pVM->pgm.s.cSharedPages++;
pVM->pgm.s.cPrivatePages--;
PGM_PAGE_SET_STATE(pVM, pPage, PGM_PAGE_STATE_SHARED);
# ifdef VBOX_STRICT /* check sum hack */
pPage->s.u2Unused0 = PageDesc.u32StrictChecksum & 3;
pPage->s.u2Unused1 = (PageDesc.u32StrictChecksum >> 8) & 3;
# endif
}
}
}
int main()
{
int rc = 0;
printf("tstVMStructSize: TESTING\n");
printf("info: struct VM: %d bytes\n", (int)sizeof(VM));
#define CHECK_PADDING_VM(align, member) \
do \
{ \
CHECK_PADDING(VM, member, align); \
CHECK_MEMBER_ALIGNMENT(VM, member, align); \
VM *p = NULL; NOREF(p); \
if (sizeof(p->member.padding) >= (ssize_t)sizeof(p->member.s) + 128 + sizeof(p->member.s) / 20) \
printf("warning: VM::%-8s: padding=%-5d s=%-5d -> %-4d suggest=%-5u\n", \
#member, (int)sizeof(p->member.padding), (int)sizeof(p->member.s), \
(int)sizeof(p->member.padding) - (int)sizeof(p->member.s), \
(int)RT_ALIGN_Z(sizeof(p->member.s), (align))); \
} while (0)
#define CHECK_PADDING_VMCPU(align, member) \
do \
{ \
CHECK_PADDING(VMCPU, member, align); \
CHECK_MEMBER_ALIGNMENT(VMCPU, member, align); \
VMCPU *p = NULL; NOREF(p); \
if (sizeof(p->member.padding) >= (ssize_t)sizeof(p->member.s) + 128 + sizeof(p->member.s) / 20) \
printf("warning: VMCPU::%-8s: padding=%-5d s=%-5d -> %-4d suggest=%-5u\n", \
#member, (int)sizeof(p->member.padding), (int)sizeof(p->member.s), \
(int)sizeof(p->member.padding) - (int)sizeof(p->member.s), \
(int)RT_ALIGN_Z(sizeof(p->member.s), (align))); \
} while (0)
#define CHECK_CPUMCTXCORE(member) \
do { \
unsigned off1 = RT_OFFSETOF(CPUMCTX, member) - RT_OFFSETOF(CPUMCTX, rax); \
unsigned off2 = RT_OFFSETOF(CPUMCTXCORE, member); \
if (off1 != off2) \
{ \
printf("error! CPUMCTX/CORE:: %s! (%#x vs %#x (ctx))\n", #member, off1, off2); \
rc++; \
} \
} while (0)
#define CHECK_PADDING_UVM(align, member) \
do \
{ \
CHECK_PADDING(UVM, member, align); \
CHECK_MEMBER_ALIGNMENT(UVM, member, align); \
UVM *p = NULL; NOREF(p); \
if (sizeof(p->member.padding) >= (ssize_t)sizeof(p->member.s) + 128 + sizeof(p->member.s) / 20) \
printf("warning: UVM::%-8s: padding=%-5d s=%-5d -> %-4d suggest=%-5u\n", \
#member, (int)sizeof(p->member.padding), (int)sizeof(p->member.s), \
(int)sizeof(p->member.padding) - (int)sizeof(p->member.s), \
(int)RT_ALIGN_Z(sizeof(p->member.s), (align))); \
} while (0)
#define CHECK_PADDING_UVMCPU(align, member) \
do \
{ \
CHECK_PADDING(UVMCPU, member, align); \
CHECK_MEMBER_ALIGNMENT(UVMCPU, member, align); \
UVMCPU *p = NULL; NOREF(p); \
if (sizeof(p->member.padding) >= (ssize_t)sizeof(p->member.s) + 128 + sizeof(p->member.s) / 20) \
printf("warning: UVMCPU::%-8s: padding=%-5d s=%-5d -> %-4d suggest=%-5u\n", \
#member, (int)sizeof(p->member.padding), (int)sizeof(p->member.s), \
(int)sizeof(p->member.padding) - (int)sizeof(p->member.s), \
(int)RT_ALIGN_Z(sizeof(p->member.s), (align))); \
} while (0)
#define CHECK_PADDING_GVM(align, member) \
do \
{ \
CHECK_PADDING(GVM, member, align); \
CHECK_MEMBER_ALIGNMENT(GVM, member, align); \
GVM *p = NULL; NOREF(p); \
if (sizeof(p->member.padding) >= (ssize_t)sizeof(p->member.s) + 128 + sizeof(p->member.s) / 20) \
printf("warning: GVM::%-8s: padding=%-5d s=%-5d -> %-4d suggest=%-5u\n", \
#member, (int)sizeof(p->member.padding), (int)sizeof(p->member.s), \
(int)sizeof(p->member.padding) - (int)sizeof(p->member.s), \
(int)RT_ALIGN_Z(sizeof(p->member.s), (align))); \
} while (0)
#define CHECK_PADDING_GVMCPU(align, member) \
do \
{ \
CHECK_PADDING(GVMCPU, member, align); \
CHECK_MEMBER_ALIGNMENT(GVMCPU, member, align); \
GVMCPU *p = NULL; NOREF(p); \
if (sizeof(p->member.padding) >= (ssize_t)sizeof(p->member.s) + 128 + sizeof(p->member.s) / 20) \
printf("warning: GVMCPU::%-8s: padding=%-5d s=%-5d -> %-4d suggest=%-5u\n", \
#member, (int)sizeof(p->member.padding), (int)sizeof(p->member.s), \
(int)sizeof(p->member.padding) - (int)sizeof(p->member.s), \
(int)RT_ALIGN_Z(sizeof(p->member.s), (align))); \
} while (0)
#define PRINT_OFFSET(strct, member) \
do \
{ \
printf("info: %10s::%-24s offset %#6x (%6d) sizeof %4d\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);
PRINT_OFFSET(VM, cpum);
CHECK_PADDING_VM(64, cpum);
CHECK_PADDING_VM(64, vmm);
PRINT_OFFSET(VM, pgm);
PRINT_OFFSET(VM, pgm.s.CritSectX);
CHECK_PADDING_VM(64, pgm);
PRINT_OFFSET(VM, hwaccm);
CHECK_PADDING_VM(64, hwaccm);
CHECK_PADDING_VM(64, trpm);
CHECK_PADDING_VM(64, selm);
CHECK_PADDING_VM(64, mm);
CHECK_PADDING_VM(64, pdm);
CHECK_PADDING_VM(64, iom);
CHECK_PADDING_VM(64, patm);
CHECK_PADDING_VM(64, csam);
CHECK_PADDING_VM(64, em);
/*CHECK_PADDING_VM(64, iem);*/
CHECK_PADDING_VM(64, tm);
CHECK_PADDING_VM(64, dbgf);
CHECK_PADDING_VM(64, ssm);
CHECK_PADDING_VM(64, rem);
CHECK_PADDING_VM(8, vm);
CHECK_PADDING_VM(8, cfgm);
PRINT_OFFSET(VMCPU, cpum);
CHECK_PADDING_VMCPU(64, cpum);
CHECK_PADDING_VMCPU(64, hwaccm);
CHECK_PADDING_VMCPU(64, em);
CHECK_PADDING_VMCPU(64, iem);
CHECK_PADDING_VMCPU(64, trpm);
CHECK_PADDING_VMCPU(64, tm);
CHECK_PADDING_VMCPU(64, vmm);
CHECK_PADDING_VMCPU(64, pdm);
CHECK_PADDING_VMCPU(64, iom);
CHECK_PADDING_VMCPU(64, dbgf);
#if 0
PRINT_OFFSET(VMCPU, abAlignment2);
#endif
PRINT_OFFSET(VMCPU, pgm);
CHECK_PADDING_VMCPU(4096, pgm);
#ifdef VBOX_WITH_STATISTICS
PRINT_OFFSET(VMCPU, pgm.s.pStatTrap0eAttributionRC);
#endif
CHECK_MEMBER_ALIGNMENT(VM, selm.s.Tss, 16);
PRINT_OFFSET(VM, selm.s.Tss);
PVM pVM = NULL; NOREF(pVM);
if ((RT_OFFSETOF(VM, selm.s.Tss) & PAGE_OFFSET_MASK) > PAGE_SIZE - sizeof(pVM->selm.s.Tss))
{
printf("error! 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("error! SELM:TssTrap08 is crossing a page!\n");
rc++;
}
CHECK_MEMBER_ALIGNMENT(VM, trpm.s.aIdt, 16);
CHECK_MEMBER_ALIGNMENT(VM, aCpus[0], PAGE_SIZE);
CHECK_MEMBER_ALIGNMENT(VM, aCpus[1], PAGE_SIZE);
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);
#ifdef VBOX_WITH_VMMR0_DISABLE_LAPIC_NMI
CHECK_MEMBER_ALIGNMENT(VM, cpum.s.pvApicBase, 8);
#endif
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, 64);
/* the VMCPUs are page aligned TLB hit reasons. */
CHECK_MEMBER_ALIGNMENT(VM, aCpus, 4096);
CHECK_SIZE_ALIGNMENT(VMCPU, 4096);
/* cpumctx */
CHECK_MEMBER_ALIGNMENT(CPUMCTX, fpu, 32);
CHECK_MEMBER_ALIGNMENT(CPUMCTX, rax, 32);
CHECK_MEMBER_ALIGNMENT(CPUMCTX, idtr.pIdt, 8);
CHECK_MEMBER_ALIGNMENT(CPUMCTX, gdtr.pGdt, 8);
CHECK_MEMBER_ALIGNMENT(CPUMCTX, SysEnter, 8);
CHECK_CPUMCTXCORE(rax);
CHECK_CPUMCTXCORE(rcx);
CHECK_CPUMCTXCORE(rdx);
CHECK_CPUMCTXCORE(rbx);
CHECK_CPUMCTXCORE(rsp);
CHECK_CPUMCTXCORE(rbp);
CHECK_CPUMCTXCORE(rsi);
CHECK_CPUMCTXCORE(rdi);
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(es);
CHECK_CPUMCTXCORE(ss);
CHECK_CPUMCTXCORE(cs);
CHECK_CPUMCTXCORE(ds);
CHECK_CPUMCTXCORE(fs);
CHECK_CPUMCTXCORE(gs);
CHECK_CPUMCTXCORE(rip);
CHECK_CPUMCTXCORE(rflags);
#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(CPUMCTXMSRS, 64);
/* pdm */
PRINT_OFFSET(PDMDEVINS, Internal);
PRINT_OFFSET(PDMDEVINS, achInstanceData);
CHECK_MEMBER_ALIGNMENT(PDMDEVINS, achInstanceData, 64);
CHECK_PADDING(PDMDEVINS, Internal, 1);
PRINT_OFFSET(PDMUSBINS, Internal);
PRINT_OFFSET(PDMUSBINS, achInstanceData);
CHECK_MEMBER_ALIGNMENT(PDMUSBINS, achInstanceData, 32);
CHECK_PADDING(PDMUSBINS, Internal, 1);
PRINT_OFFSET(PDMDRVINS, Internal);
PRINT_OFFSET(PDMDRVINS, achInstanceData);
CHECK_MEMBER_ALIGNMENT(PDMDRVINS, achInstanceData, 32);
CHECK_PADDING(PDMDRVINS, Internal, 1);
CHECK_PADDING2(PDMCRITSECT);
/* pgm */
#if defined(VBOX_WITH_2X_4GB_ADDR_SPACE) || defined(VBOX_WITH_RAW_MODE)
CHECK_MEMBER_ALIGNMENT(PGMCPU, AutoSet, 8);
#endif
CHECK_MEMBER_ALIGNMENT(PGMCPU, GCPhysCR3, sizeof(RTGCPHYS));
CHECK_MEMBER_ALIGNMENT(PGMCPU, aGCPhysGstPaePDs, sizeof(RTGCPHYS));
CHECK_MEMBER_ALIGNMENT(PGMCPU, DisState, 8);
CHECK_MEMBER_ALIGNMENT(PGMCPU, cPoolAccessHandler, 8);
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);
/* TM */
CHECK_MEMBER_ALIGNMENT(TM, TimerCritSect, sizeof(uintptr_t));
CHECK_MEMBER_ALIGNMENT(TM, VirtualSyncLock, sizeof(uintptr_t));
/* 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
CHECK_MEMBER_ALIGNMENT(IOM, CritSect, sizeof(uintptr_t));
#ifdef VBOX_WITH_REM
CHECK_MEMBER_ALIGNMENT(EM, CritSectREM, sizeof(uintptr_t));
#endif
CHECK_MEMBER_ALIGNMENT(PGM, CritSectX, 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.HCPhysVMCS, sizeof(RTHCPHYS));
CHECK_MEMBER_ALIGNMENT(HWACCMCPU, vmx.proc_ctls, 8);
CHECK_MEMBER_ALIGNMENT(HWACCMCPU, Event.intInfo, 8);
/* 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++;
}
printf("info: struct UVM: %d bytes\n", (int)sizeof(UVM));
CHECK_PADDING_UVM(32, vm);
CHECK_PADDING_UVM(32, mm);
CHECK_PADDING_UVM(32, pdm);
CHECK_PADDING_UVM(32, stam);
printf("info: struct UVMCPU: %d bytes\n", (int)sizeof(UVMCPU));
CHECK_PADDING_UVMCPU(32, vm);
#ifdef VBOX_WITH_RAW_MODE
/*
* Compare HC and RC.
*/
printf("tstVMStructSize: Comparing HC and RC...\n");
# include "tstVMStructRC.h"
#endif /* VBOX_WITH_RAW_MODE */
CHECK_PADDING_GVM(4, gvmm);
CHECK_PADDING_GVM(4, gmm);
CHECK_PADDING_GVMCPU(4, gvmm);
/*
* Check that the optimized access macros for PGMPAGE works correctly.
*/
PGMPAGE Page;
PGM_PAGE_CLEAR(&Page);
CHECK_EXPR(PGM_PAGE_GET_HNDL_PHYS_STATE(&Page) == PGM_PAGE_HNDL_PHYS_STATE_NONE);
CHECK_EXPR(PGM_PAGE_HAS_ANY_HANDLERS(&Page) == false);
CHECK_EXPR(PGM_PAGE_HAS_ACTIVE_HANDLERS(&Page) == false);
CHECK_EXPR(PGM_PAGE_HAS_ACTIVE_ALL_HANDLERS(&Page) == false);
PGM_PAGE_SET_HNDL_PHYS_STATE(&Page, PGM_PAGE_HNDL_PHYS_STATE_ALL);
CHECK_EXPR(PGM_PAGE_GET_HNDL_PHYS_STATE(&Page) == PGM_PAGE_HNDL_PHYS_STATE_ALL);
CHECK_EXPR(PGM_PAGE_HAS_ANY_HANDLERS(&Page) == true);
CHECK_EXPR(PGM_PAGE_HAS_ACTIVE_HANDLERS(&Page) == true);
CHECK_EXPR(PGM_PAGE_HAS_ACTIVE_ALL_HANDLERS(&Page) == true);
PGM_PAGE_SET_HNDL_PHYS_STATE(&Page, PGM_PAGE_HNDL_PHYS_STATE_WRITE);
CHECK_EXPR(PGM_PAGE_GET_HNDL_PHYS_STATE(&Page) == PGM_PAGE_HNDL_PHYS_STATE_WRITE);
CHECK_EXPR(PGM_PAGE_HAS_ANY_HANDLERS(&Page) == true);
CHECK_EXPR(PGM_PAGE_HAS_ACTIVE_HANDLERS(&Page) == true);
CHECK_EXPR(PGM_PAGE_HAS_ACTIVE_ALL_HANDLERS(&Page) == false);
PGM_PAGE_CLEAR(&Page);
PGM_PAGE_SET_HNDL_VIRT_STATE(&Page, PGM_PAGE_HNDL_VIRT_STATE_ALL);
CHECK_EXPR(PGM_PAGE_GET_HNDL_VIRT_STATE(&Page) == PGM_PAGE_HNDL_VIRT_STATE_ALL);
CHECK_EXPR(PGM_PAGE_HAS_ANY_HANDLERS(&Page) == true);
CHECK_EXPR(PGM_PAGE_HAS_ACTIVE_HANDLERS(&Page) == true);
CHECK_EXPR(PGM_PAGE_HAS_ACTIVE_ALL_HANDLERS(&Page) == true);
PGM_PAGE_SET_HNDL_VIRT_STATE(&Page, PGM_PAGE_HNDL_VIRT_STATE_WRITE);
CHECK_EXPR(PGM_PAGE_GET_HNDL_VIRT_STATE(&Page) == PGM_PAGE_HNDL_VIRT_STATE_WRITE);
CHECK_EXPR(PGM_PAGE_HAS_ANY_HANDLERS(&Page) == true);
CHECK_EXPR(PGM_PAGE_HAS_ACTIVE_HANDLERS(&Page) == true);
CHECK_EXPR(PGM_PAGE_HAS_ACTIVE_ALL_HANDLERS(&Page) == false);
PGM_PAGE_CLEAR(&Page);
PGM_PAGE_SET_HNDL_PHYS_STATE(&Page, PGM_PAGE_HNDL_PHYS_STATE_ALL);
PGM_PAGE_SET_HNDL_VIRT_STATE(&Page, PGM_PAGE_HNDL_VIRT_STATE_WRITE);
CHECK_EXPR(PGM_PAGE_GET_HNDL_PHYS_STATE(&Page) == PGM_PAGE_HNDL_PHYS_STATE_ALL);
CHECK_EXPR(PGM_PAGE_GET_HNDL_VIRT_STATE(&Page) == PGM_PAGE_HNDL_VIRT_STATE_WRITE);
CHECK_EXPR(PGM_PAGE_HAS_ANY_HANDLERS(&Page) == true);
CHECK_EXPR(PGM_PAGE_HAS_ACTIVE_HANDLERS(&Page) == true);
CHECK_EXPR(PGM_PAGE_HAS_ACTIVE_ALL_HANDLERS(&Page) == true);
PGM_PAGE_SET_HNDL_PHYS_STATE(&Page, PGM_PAGE_HNDL_PHYS_STATE_WRITE);
PGM_PAGE_SET_HNDL_VIRT_STATE(&Page, PGM_PAGE_HNDL_VIRT_STATE_ALL);
CHECK_EXPR(PGM_PAGE_GET_HNDL_PHYS_STATE(&Page) == PGM_PAGE_HNDL_PHYS_STATE_WRITE);
CHECK_EXPR(PGM_PAGE_GET_HNDL_VIRT_STATE(&Page) == PGM_PAGE_HNDL_VIRT_STATE_ALL);
CHECK_EXPR(PGM_PAGE_HAS_ANY_HANDLERS(&Page) == true);
CHECK_EXPR(PGM_PAGE_HAS_ACTIVE_HANDLERS(&Page) == true);
CHECK_EXPR(PGM_PAGE_HAS_ACTIVE_ALL_HANDLERS(&Page) == true);
PGM_PAGE_SET_HNDL_PHYS_STATE(&Page, PGM_PAGE_HNDL_PHYS_STATE_WRITE);
PGM_PAGE_SET_HNDL_VIRT_STATE(&Page, PGM_PAGE_HNDL_VIRT_STATE_WRITE);
CHECK_EXPR(PGM_PAGE_GET_HNDL_PHYS_STATE(&Page) == PGM_PAGE_HNDL_PHYS_STATE_WRITE);
CHECK_EXPR(PGM_PAGE_GET_HNDL_VIRT_STATE(&Page) == PGM_PAGE_HNDL_VIRT_STATE_WRITE);
CHECK_EXPR(PGM_PAGE_HAS_ANY_HANDLERS(&Page) == true);
CHECK_EXPR(PGM_PAGE_HAS_ACTIVE_HANDLERS(&Page) == true);
CHECK_EXPR(PGM_PAGE_HAS_ACTIVE_ALL_HANDLERS(&Page) == false);
PGM_PAGE_SET_HNDL_VIRT_STATE(&Page, PGM_PAGE_HNDL_VIRT_STATE_NONE);
CHECK_EXPR(PGM_PAGE_GET_HNDL_PHYS_STATE(&Page) == PGM_PAGE_HNDL_PHYS_STATE_WRITE);
CHECK_EXPR(PGM_PAGE_GET_HNDL_VIRT_STATE(&Page) == PGM_PAGE_HNDL_VIRT_STATE_NONE);
CHECK_EXPR(PGM_PAGE_HAS_ANY_HANDLERS(&Page) == true);
CHECK_EXPR(PGM_PAGE_HAS_ACTIVE_HANDLERS(&Page) == true);
CHECK_EXPR(PGM_PAGE_HAS_ACTIVE_ALL_HANDLERS(&Page) == false);
#undef AssertFatal
#define AssertFatal(expr) do { } while (0)
#undef Assert
#define Assert(expr) do { } while (0)
PGM_PAGE_CLEAR(&Page);
CHECK_EXPR(PGM_PAGE_GET_HCPHYS_NA(&Page) == 0);
PGM_PAGE_SET_HCPHYS(NULL, &Page, UINT64_C(0x0000fffeff1ff000));
CHECK_EXPR(PGM_PAGE_GET_HCPHYS_NA(&Page) == UINT64_C(0x0000fffeff1ff000));
PGM_PAGE_SET_HCPHYS(NULL, &Page, UINT64_C(0x0000000000001000));
CHECK_EXPR(PGM_PAGE_GET_HCPHYS_NA(&Page) == UINT64_C(0x0000000000001000));
PGM_PAGE_INIT(&Page, UINT64_C(0x0000feedfacef000), UINT32_C(0x12345678), PGMPAGETYPE_RAM, PGM_PAGE_STATE_ALLOCATED);
CHECK_EXPR(PGM_PAGE_GET_HCPHYS_NA(&Page) == UINT64_C(0x0000feedfacef000));
CHECK_EXPR(PGM_PAGE_GET_PAGEID(&Page) == UINT32_C(0x12345678));
CHECK_EXPR(PGM_PAGE_GET_TYPE_NA(&Page) == PGMPAGETYPE_RAM);
CHECK_EXPR(PGM_PAGE_GET_STATE_NA(&Page) == PGM_PAGE_STATE_ALLOCATED);
/*
* Report result.
*/
if (rc)
printf("tstVMStructSize: FAILURE - %d errors\n", rc);
else
printf("tstVMStructSize: SUCCESS\n");
return rc;
}
/**
* @callback_method_impl{FNDBGCCMD, The '.pgmcheckduppages' command.}
*/
DECLCALLBACK(int) pgmR3CmdCheckDuplicatePages(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PUVM pUVM, PCDBGCVAR paArgs, unsigned cArgs)
{
unsigned cBallooned = 0;
unsigned cShared = 0;
unsigned cZero = 0;
unsigned cUnique = 0;
unsigned cDuplicate = 0;
unsigned cAllocZero = 0;
unsigned cPages = 0;
NOREF(pCmd); NOREF(paArgs); NOREF(cArgs);
PVM pVM = pUVM->pVM;
VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
pgmLock(pVM);
for (PPGMRAMRANGE pRam = pVM->pgm.s.pRamRangesXR3; pRam; pRam = pRam->pNextR3)
{
PPGMPAGE pPage = &pRam->aPages[0];
RTGCPHYS GCPhys = pRam->GCPhys;
uint32_t cLeft = pRam->cb >> PAGE_SHIFT;
while (cLeft-- > 0)
{
if (PGM_PAGE_GET_TYPE(pPage) == PGMPAGETYPE_RAM)
{
switch (PGM_PAGE_GET_STATE(pPage))
{
case PGM_PAGE_STATE_ZERO:
cZero++;
break;
case PGM_PAGE_STATE_BALLOONED:
cBallooned++;
break;
case PGM_PAGE_STATE_SHARED:
cShared++;
break;
case PGM_PAGE_STATE_ALLOCATED:
case PGM_PAGE_STATE_WRITE_MONITORED:
{
/* Check if the page was allocated, but completely zero. */
PGMPAGEMAPLOCK PgMpLck;
const void *pvPage;
int rc = pgmPhysGCPhys2CCPtrInternalReadOnly(pVM, pPage, GCPhys, &pvPage, &PgMpLck);
if ( RT_SUCCESS(rc)
&& ASMMemIsZeroPage(pvPage))
cAllocZero++;
else if (GMMR3IsDuplicatePage(pVM, PGM_PAGE_GET_PAGEID(pPage)))
cDuplicate++;
else
cUnique++;
if (RT_SUCCESS(rc))
pgmPhysReleaseInternalPageMappingLock(pVM, &PgMpLck);
break;
}
default:
AssertFailed();
break;
}
}
/* next */
pPage++;
GCPhys += PAGE_SIZE;
cPages++;
/* Give some feedback for every processed megabyte. */
if ((cPages & 0x7f) == 0)
pCmdHlp->pfnPrintf(pCmdHlp, NULL, ".");
}
}
pgmUnlock(pVM);
pCmdHlp->pfnPrintf(pCmdHlp, NULL, "\nNumber of zero pages %08x (%d MB)\n", cZero, cZero / 256);
pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Number of alloczero pages %08x (%d MB)\n", cAllocZero, cAllocZero / 256);
pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Number of ballooned pages %08x (%d MB)\n", cBallooned, cBallooned / 256);
pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Number of shared pages %08x (%d MB)\n", cShared, cShared / 256);
pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Number of unique pages %08x (%d MB)\n", cUnique, cUnique / 256);
pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Number of duplicate pages %08x (%d MB)\n", cDuplicate, cDuplicate / 256);
return VINF_SUCCESS;
}
/**
* Check a registered module for shared page changes
*
* @returns The following VBox status codes.
*
* @param pVM The VM handle.
* @param pGVM Pointer to the GVM instance data.
* @param idCpu VCPU id
* @param pModule Module description
* @param cRegions Number of regions
* @param pRegions Region array
*/
VMMR0DECL(int) PGMR0SharedModuleCheck(PVM pVM, PGVM pGVM, VMCPUID idCpu, PGMMSHAREDMODULE pModule, uint32_t cRegions, PGMMSHAREDREGIONDESC pRegions)
{
int rc = VINF_SUCCESS;
GMMSHAREDPAGEDESC PageDesc;
bool fFlushTLBs = false;
PVMCPU pVCpu = &pVM->aCpus[idCpu];
Log(("PGMR0SharedModuleCheck: check %s %s base=%RGv size=%x\n", pModule->szName, pModule->szVersion, pModule->Core.Key, pModule->cbModule));
PGM_LOCK_ASSERT_OWNER(pVM); /* This cannot fail as we grab the lock in pgmR3SharedModuleRegRendezvous before calling into ring-0. */
/* Check every region of the shared module. */
for (unsigned idxRegion = 0; idxRegion < cRegions; idxRegion++)
{
Assert((pRegions[idxRegion].cbRegion & 0xfff) == 0);
Assert((pRegions[idxRegion].GCRegionAddr & 0xfff) == 0);
RTGCPTR GCRegion = pRegions[idxRegion].GCRegionAddr;
unsigned cbRegion = pRegions[idxRegion].cbRegion & ~0xfff;
unsigned idxPage = 0;
while (cbRegion)
{
RTGCPHYS GCPhys;
uint64_t fFlags;
/** @todo inefficient to fetch each guest page like this... */
rc = PGMGstGetPage(pVCpu, GCRegion, &fFlags, &GCPhys);
if ( rc == VINF_SUCCESS
&& !(fFlags & X86_PTE_RW)) /* important as we make assumptions about this below! */
{
PPGMPAGE pPage = pgmPhysGetPage(pVM, GCPhys);
Assert(!pPage || !PGM_PAGE_IS_BALLOONED(pPage));
if ( pPage
&& PGM_PAGE_GET_STATE(pPage) == PGM_PAGE_STATE_ALLOCATED)
{
PageDesc.uHCPhysPageId = PGM_PAGE_GET_PAGEID(pPage);
PageDesc.HCPhys = PGM_PAGE_GET_HCPHYS(pPage);
PageDesc.GCPhys = GCPhys;
rc = GMMR0SharedModuleCheckPage(pGVM, pModule, idxRegion, idxPage, &PageDesc);
if (rc == VINF_SUCCESS)
{
/* Any change for this page? */
if (PageDesc.uHCPhysPageId != NIL_GMM_PAGEID)
{
Assert(PGM_PAGE_GET_STATE(pPage) == PGM_PAGE_STATE_ALLOCATED);
Log(("PGMR0SharedModuleCheck: shared page gc virt=%RGv phys %RGp host %RHp->%RHp\n", pRegions[idxRegion].GCRegionAddr + idxPage * PAGE_SIZE, PageDesc.GCPhys, PGM_PAGE_GET_HCPHYS(pPage), PageDesc.HCPhys));
if (PageDesc.HCPhys != PGM_PAGE_GET_HCPHYS(pPage))
{
bool fFlush = false;
/* Page was replaced by an existing shared version of it; clear all references first. */
rc = pgmPoolTrackUpdateGCPhys(pVM, PageDesc.GCPhys, pPage, true /* clear the entries */, &fFlush);
Assert(rc == VINF_SUCCESS || (VMCPU_FF_ISSET(pVCpu, VMCPU_FF_PGM_SYNC_CR3) && (pVCpu->pgm.s.fSyncFlags & PGM_SYNC_CLEAR_PGM_POOL)));
if (rc == VINF_SUCCESS)
fFlushTLBs |= fFlush;
/* Update the physical address and page id now. */
PGM_PAGE_SET_HCPHYS(pVM, pPage, PageDesc.HCPhys);
PGM_PAGE_SET_PAGEID(pVM, pPage, PageDesc.uHCPhysPageId);
/* Invalidate page map TLB entry for this page too. */
pgmPhysInvalidatePageMapTLBEntry(pVM, PageDesc.GCPhys);
pVM->pgm.s.cReusedSharedPages++;
}
/* else nothing changed (== this page is now a shared page), so no need to flush anything. */
pVM->pgm.s.cSharedPages++;
pVM->pgm.s.cPrivatePages--;
PGM_PAGE_SET_STATE(pVM, pPage, PGM_PAGE_STATE_SHARED);
}
}
else
break;
}
}
else
{
Assert( rc == VINF_SUCCESS
|| rc == VERR_PAGE_NOT_PRESENT
|| rc == VERR_PAGE_MAP_LEVEL4_NOT_PRESENT
|| rc == VERR_PAGE_DIRECTORY_PTR_NOT_PRESENT
|| rc == VERR_PAGE_TABLE_NOT_PRESENT);
rc = VINF_SUCCESS; /* ignore error */
}
idxPage++;
GCRegion += PAGE_SIZE;
cbRegion -= PAGE_SIZE;
}
}
if (fFlushTLBs)
PGM_INVL_ALL_VCPU_TLBS(pVM);
return rc;
}
