VMMDevTesting.cpp revision dc31047bffe0f7c2dda50da6efe001e0cbf9a0a7
/* $Id$ */
/** @file
* VMMDev - Testing Extensions.
*
* To enable: VBoxManage setextradata vmname VBoxInternal/Devices/VMMDev/0/Config/TestingEnabled 1
*/
/*
* Copyright (C) 2010-2012 Oracle Corporation
*
* 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.
*/
/*******************************************************************************
* Header Files *
*******************************************************************************/
#define LOG_GROUP LOG_GROUP_DEV_VMM
#include <VBox/VMMDev.h>
#include <VBox/vmm/vmapi.h>
#include <VBox/log.h>
#include <VBox/err.h>
#include <iprt/asm.h>
#include <iprt/assert.h>
#include <iprt/string.h>
#include <iprt/time.h>
#ifdef IN_RING3
# include <iprt/stream.h>
#endif
#include "VMMDevState.h"
#include "VMMDevTesting.h"
#ifndef VBOX_WITHOUT_TESTING_FEATURES
#define VMMDEV_TESTING_OUTPUT(a) \
do \
{ \
LogAlways(a);\
LogRel(a);\
RTPrintf a; \
} while (0)
/**
* @callback_method_impl{FNIOMMMIOWRITE}
*/
PDMBOTHCBDECL(int) vmmdevTestingMmioWrite(PPDMDEVINS pDevIns, void *pvUser, RTGCPHYS GCPhysAddr, void const *pv, unsigned cb)
{
switch (GCPhysAddr)
{
case VMMDEV_TESTING_MMIO_NOP:
switch (cb)
{
case 8:
case 4:
case 2:
case 1:
break;
default:
AssertFailed();
return VERR_INTERNAL_ERROR_5;
}
return VINF_SUCCESS;
default:
break;
}
return VINF_SUCCESS;
}
/**
* @callback_method_impl{FNIOMMMIOREAD}
*/
PDMBOTHCBDECL(int) vmmdevTestingMmioRead(PPDMDEVINS pDevIns, void *pvUser, RTGCPHYS GCPhysAddr, void *pv, unsigned cb)
{
switch (GCPhysAddr)
{
case VMMDEV_TESTING_MMIO_NOP:
switch (cb)
{
case 8:
*(uint64_t *)pv = VMMDEV_TESTING_NOP_RET | ((uint64_t)VMMDEV_TESTING_NOP_RET << 32);
break;
case 4:
*(uint32_t *)pv = VMMDEV_TESTING_NOP_RET;
break;
case 2:
*(uint16_t *)pv = (uint16_t)VMMDEV_TESTING_NOP_RET;
break;
case 1:
*(uint8_t *)pv = (uint8_t)VMMDEV_TESTING_NOP_RET;
break;
default:
AssertFailed();
return VERR_INTERNAL_ERROR_5;
}
return VINF_SUCCESS;
default:
break;
}
return VINF_IOM_MMIO_UNUSED_FF;
}
#ifdef IN_RING3
/**
* Executes the VMMDEV_TESTING_CMD_VALUE_REG command when the data is ready.
*
* @param pDevIns The PDM device instance.
* @param pThis The instance VMMDev data.
*/
static void vmmdevTestingCmdExec_ValueReg(PPDMDEVINS pDevIns, VMMDevState *pThis)
{
char *pszRegNm = strchr(pThis->TestingData.String.sz, ':');
if (pszRegNm)
{
*pszRegNm++ = '\0';
pszRegNm = RTStrStrip(pszRegNm);
}
char *pszValueNm = RTStrStrip(pThis->TestingData.String.sz);
size_t const cchValueNm = strlen(pszValueNm);
if (cchValueNm && pszRegNm && *pszRegNm)
{
PVM pVM = PDMDevHlpGetVM(pDevIns);
VMCPUID idCpu = VMMGetCpuId(pVM);
uint64_t u64Value;
int rc2 = DBGFR3RegNmQueryU64(pVM, idCpu, pszRegNm, &u64Value);
if (RT_SUCCESS(rc2))
{
const char *pszWarn = rc2 == VINF_DBGF_TRUNCATED_REGISTER ? " truncated" : "";
#if 1 /*!RTTestValue format*/
char szFormat[128], szValue[128];
RTStrPrintf(szFormat, sizeof(szFormat), "%%VR{%s}", pszRegNm);
rc2 = DBGFR3RegPrintf(pVM, idCpu, szValue, sizeof(szValue), szFormat);
if (RT_SUCCESS(rc2))
VMMDEV_TESTING_OUTPUT(("testing: VALUE '%s'%*s: %16s {reg=%s}%s\n",
pszValueNm,
(ssize_t)cchValueNm - 12 > 48 ? 0 : 48 - ((ssize_t)cchValueNm - 12), "",
szValue, pszRegNm));
else
#endif
VMMDEV_TESTING_OUTPUT(("testing: VALUE '%s'%*s: %'9llu (%#llx) [0] {reg=%s}%s\n",
pszValueNm,
(ssize_t)cchValueNm - 12 > 48 ? 0 : 48 - ((ssize_t)cchValueNm - 12), "",
u64Value, u64Value, pszRegNm, pszWarn));
}
else
VMMDEV_TESTING_OUTPUT(("testing: error querying register '%s' for value '%s': %Rrc\n",
pszRegNm, pszValueNm, rc2));
}
else
VMMDEV_TESTING_OUTPUT(("testing: malformed register value '%s'/'%s'\n", pszValueNm, pszRegNm));
}
#endif /* IN_RING3 */
/**
* @callback_method_impl{FNIOMIOPORTOUT}
*/
PDMBOTHCBDECL(int) vmmdevTestingIoWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t u32, unsigned cb)
{
VMMDevState *pThis = PDMINS_2_DATA(pDevIns, VMMDevState *);
switch (Port)
{
/*
* The NOP I/O ports are used for performance measurements.
*/
case VMMDEV_TESTING_IOPORT_NOP:
switch (cb)
{
case 4:
case 2:
case 1:
break;
default:
AssertFailed();
return VERR_INTERNAL_ERROR_2;
}
return VINF_SUCCESS;
/* The timestamp I/O ports are read-only. */
case VMMDEV_TESTING_IOPORT_TS_LOW:
case VMMDEV_TESTING_IOPORT_TS_HIGH:
break;
/*
* The command port (DWORD write only).
*/
case VMMDEV_TESTING_IOPORT_CMD:
if (cb == 4)
{
pThis->u32TestingCmd = u32;
pThis->offTestingData = 0;
RT_ZERO(pThis->TestingData);
return VINF_SUCCESS;
}
break;
/*
* The data port. Used of providing data for a command.
*/
case VMMDEV_TESTING_IOPORT_DATA:
{
uint32_t uCmd = pThis->u32TestingCmd;
uint32_t off = pThis->offTestingData;
switch (uCmd)
{
case VMMDEV_TESTING_CMD_INIT:
case VMMDEV_TESTING_CMD_SUB_NEW:
case VMMDEV_TESTING_CMD_FAILED:
case VMMDEV_TESTING_CMD_SKIPPED:
if ( off < sizeof(pThis->TestingData.String.sz) - 1
&& cb == 1)
{
if (u32)
{
pThis->TestingData.String.sz[off] = u32;
pThis->offTestingData = off + 1;
}
else
{
#ifdef IN_RING3
switch (uCmd)
{
case VMMDEV_TESTING_CMD_INIT:
VMMDEV_TESTING_OUTPUT(("testing: INIT '%.*s'\n",
sizeof(pThis->TestingData.String.sz) - 1, pThis->TestingData.String.sz));
break;
case VMMDEV_TESTING_CMD_SUB_NEW:
VMMDEV_TESTING_OUTPUT(("testing: SUB_NEW '%.*s'\n",
sizeof(pThis->TestingData.String.sz) - 1, pThis->TestingData.String.sz));
break;
case VMMDEV_TESTING_CMD_FAILED:
VMMDEV_TESTING_OUTPUT(("testing: FAILED '%.*s'\n",
sizeof(pThis->TestingData.String.sz) - 1, pThis->TestingData.String.sz));
break;
case VMMDEV_TESTING_CMD_SKIPPED:
VMMDEV_TESTING_OUTPUT(("testing: SKIPPED '%.*s'\n",
sizeof(pThis->TestingData.String.sz) - 1, pThis->TestingData.String.sz));
break;
}
#else
return VINF_IOM_R3_IOPORT_WRITE;
#endif
}
return VINF_SUCCESS;
}
break;
case VMMDEV_TESTING_CMD_TERM:
case VMMDEV_TESTING_CMD_SUB_DONE:
if ( off == 0
&& cb == 4)
{
#ifdef IN_RING3
pThis->TestingData.Error.c = u32;
if (uCmd == VMMDEV_TESTING_CMD_TERM)
VMMDEV_TESTING_OUTPUT(("testing: TERM - %u errors\n", u32));
else
VMMDEV_TESTING_OUTPUT(("testing: SUB_DONE - %u errors\n", u32));
return VINF_SUCCESS;
#else
return VINF_IOM_R3_IOPORT_WRITE;
#endif
}
break;
case VMMDEV_TESTING_CMD_VALUE:
if (cb == 4)
{
if (off == 0)
pThis->TestingData.Value.u64Value.s.Lo = u32;
else if (off == 4)
pThis->TestingData.Value.u64Value.s.Hi = u32;
else if (off == 8)
pThis->TestingData.Value.u32Unit = u32;
else
break;
pThis->offTestingData = off + 4;
return VINF_SUCCESS;
}
if ( off >= 12
&& cb == 1
&& off < sizeof(pThis->TestingData.Value.szName) - 1 - 12)
{
if (u32)
{
pThis->TestingData.Value.szName[off - 12] = u32;
pThis->offTestingData = off + 1;
}
else
{
#ifdef IN_RING3
VMMDEV_TESTING_OUTPUT(("testing: VALUE '%.*s'%*s: %'9llu (%#llx) [%u]\n",
sizeof(pThis->TestingData.Value.szName) - 1, pThis->TestingData.Value.szName,
off - 12 > 48 ? 0 : 48 - (off - 12), "",
pThis->TestingData.Value.u64Value.u, pThis->TestingData.Value.u64Value.u,
pThis->TestingData.Value.u32Unit));
#else
return VINF_IOM_R3_IOPORT_WRITE;
#endif
}
return VINF_SUCCESS;
#ifdef IN_RING3
pThis->TestingData.Error.c = u32;
if (uCmd == VMMDEV_TESTING_CMD_TERM)
VMMDEV_TESTING_OUTPUT(("testing: TERM - %u errors\n", u32));
else
VMMDEV_TESTING_OUTPUT(("testing: SUB_DONE - %u errors\n", u32));
return VINF_SUCCESS;
#else
return VINF_IOM_R3_IOPORT_WRITE;
#endif
}
break;
/*
* RTTestValue with the return from DBGFR3RegNmQuery.
*/
case VMMDEV_TESTING_CMD_VALUE_REG:
{
if ( off < sizeof(pThis->TestingData.String.sz) - 1
&& cb == 1)
{
pThis->TestingData.String.sz[off] = u32;
if (u32)
pThis->offTestingData = off + 1;
else
#ifdef IN_RING3
vmmdevTestingCmdExec_ValueReg(pDevIns, pThis);
#else
return VINF_IOM_R3_IOPORT_WRITE;
#endif
return VINF_SUCCESS;
}
break;
}
default:
break;
}
Log(("VMMDEV_TESTING_IOPORT_CMD: bad access; cmd=%#x off=%#x cb=%#x u32=%#x\n", uCmd, off, cb, u32));
return VINF_SUCCESS;
}
default:
break;
}
return VERR_IOM_IOPORT_UNUSED;
}
/**
* @callback_method_impl{FNIOMIOPORTIN}
*/
PDMBOTHCBDECL(int) vmmdevTestingIoRead(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t *pu32, unsigned cb)
{
VMMDevState *pThis = PDMINS_2_DATA(pDevIns, VMMDevState *);
switch (Port)
{
/*
* The NOP I/O ports are used for performance measurements.
*/
case VMMDEV_TESTING_IOPORT_NOP:
switch (cb)
{
case 4:
case 2:
case 1:
break;
default:
AssertFailed();
return VERR_INTERNAL_ERROR_2;
}
*pu32 = VMMDEV_TESTING_NOP_RET;
return VINF_SUCCESS;
/*
* The timestamp I/O ports are obviously used for getting a good fix
* on the current time (as seen by the host?).
*
* The high word is latched when reading the low, so reading low + high
* gives you a 64-bit timestamp value.
*/
case VMMDEV_TESTING_IOPORT_TS_LOW:
if (cb == 4)
{
uint64_t NowTS = RTTimeNanoTS();
*pu32 = (uint32_t)NowTS;
pThis->u32TestingHighTimestamp = (uint32_t)(NowTS >> 32);
return VINF_SUCCESS;
}
break;
case VMMDEV_TESTING_IOPORT_TS_HIGH:
if (cb == 4)
{
*pu32 = pThis->u32TestingHighTimestamp;
return VINF_SUCCESS;
}
break;
/*
* The command and data registers are write-only.
*/
case VMMDEV_TESTING_IOPORT_CMD:
case VMMDEV_TESTING_IOPORT_DATA:
break;
default:
break;
}
return VERR_IOM_IOPORT_UNUSED;
}
#ifdef IN_RING3
/**
* Initializes the testing part of the VMMDev if enabled.
*
* @returns VBox status code.
* @param pDevIns The VMMDev device instance.
*/
int vmmdevTestingInitialize(PPDMDEVINS pDevIns)
{
VMMDevState *pThis = PDMINS_2_DATA(pDevIns, VMMDevState *);
if (!pThis->fTestingEnabled)
return VINF_SUCCESS;
/*
* Register a chunk of MMIO memory that we'll use for various
* tests interfaces.
*/
int rc = PDMDevHlpMMIORegister(pDevIns, VMMDEV_TESTING_MMIO_BASE, VMMDEV_TESTING_MMIO_SIZE, NULL /*pvUser*/,
IOMMMIO_FLAGS_READ_PASSTHRU | IOMMMIO_FLAGS_WRITE_PASSTHRU,
vmmdevTestingMmioWrite, vmmdevTestingMmioRead, "VMMDev Testing");
AssertRCReturn(rc, rc);
if (pThis->fRZEnabled)
{
rc = PDMDevHlpMMIORegisterR0(pDevIns, VMMDEV_TESTING_MMIO_BASE, VMMDEV_TESTING_MMIO_SIZE, NIL_RTR0PTR /*pvUser*/,
"vmmdevTestingMmioWrite", "vmmdevTestingMmioRead");
AssertRCReturn(rc, rc);
rc = PDMDevHlpMMIORegisterRC(pDevIns, VMMDEV_TESTING_MMIO_BASE, VMMDEV_TESTING_MMIO_SIZE, NIL_RTRCPTR /*pvUser*/,
"vmmdevTestingMmioWrite", "vmmdevTestingMmioRead");
AssertRCReturn(rc, rc);
}
/*
* Register the I/O ports used for testing.
*/
rc = PDMDevHlpIOPortRegister(pDevIns, VMMDEV_TESTING_IOPORT_BASE, VMMDEV_TESTING_IOPORT_COUNT, NULL,
vmmdevTestingIoWrite,
vmmdevTestingIoRead,
NULL /*pfnOutStr*/,
NULL /*pfnInStr*/,
"VMMDev Testing");
AssertRCReturn(rc, rc);
if (pThis->fRZEnabled)
{
rc = PDMDevHlpIOPortRegisterR0(pDevIns, VMMDEV_TESTING_IOPORT_BASE, VMMDEV_TESTING_IOPORT_COUNT, NIL_RTR0PTR /*pvUser*/,
"vmmdevTestingIoWrite",
"vmmdevTestingIoRead",
NULL /*pszOutStr*/,
NULL /*pszInStr*/,
"VMMDev Testing");
AssertRCReturn(rc, rc);
rc = PDMDevHlpIOPortRegisterRC(pDevIns, VMMDEV_TESTING_IOPORT_BASE, VMMDEV_TESTING_IOPORT_COUNT, NIL_RTRCPTR /*pvUser*/,
"vmmdevTestingIoWrite",
"vmmdevTestingIoRead",
NULL /*pszOutStr*/,
NULL /*pszInStr*/,
"VMMDev Testing");
AssertRCReturn(rc, rc);
}
return VINF_SUCCESS;
}
#endif /* IN_RING3 */
#endif /* !VBOX_WITHOUT_TESTING_FEATURES */