DrvVD.cpp revision 927320c7f81d3acdbccb5f3fea7548b4b7184b98
77b1a2d8b5dbe2c0b5200794914239fee3c8ee5dvboxsync/* $Id$ */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/** @file
77b1a2d8b5dbe2c0b5200794914239fee3c8ee5dvboxsync * DrvVD - Generic VBox disk media driver.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/*
1c94c0a63ba68be1a7b2c640e70d7a06464e4fcavboxsync * Copyright (C) 2006-2008 Sun Microsystems, Inc.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync *
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * available from http://www.virtualbox.org. This file is free software;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * you can redistribute it and/or modify it under the terms of the GNU
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * General Public License (GPL) as published by the Free Software
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
1c94c0a63ba68be1a7b2c640e70d7a06464e4fcavboxsync *
1c94c0a63ba68be1a7b2c640e70d7a06464e4fcavboxsync * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
1c94c0a63ba68be1a7b2c640e70d7a06464e4fcavboxsync * Clara, CA 95054 USA or visit http://www.sun.com if you need
1c94c0a63ba68be1a7b2c640e70d7a06464e4fcavboxsync * additional information or have any questions.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/*******************************************************************************
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync* Header files *
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync*******************************************************************************/
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync#define LOG_GROUP LOG_GROUP_DRV_VD
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync#include <VBox/VBoxHDD-new.h>
da957c069c2a3c582fe265ff88170ce4c42b499dvboxsync#include <VBox/pdmdrv.h>
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync#include <iprt/alloc.h>
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync#include <iprt/assert.h>
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync#include <iprt/uuid.h>
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync#include <iprt/file.h>
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync#include <iprt/string.h>
9496f2d398b49813176939d7a339ae513d5175efvboxsync#include <iprt/cache.h>
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync#include "Builtins.h"
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/*******************************************************************************
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync* Defined types, constants and macros *
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync*******************************************************************************/
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/** Converts a pointer to VDIDISK::IMedia to a PVBOXDISK. */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync#define PDMIMEDIA_2_VBOXDISK(pInterface) \
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync ( (PVBOXDISK)((uintptr_t)pInterface - RT_OFFSETOF(VBOXDISK, IMedia)) )
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/** Converts a pointer to PDMDRVINS::IBase to a PPDMDRVINS. */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync#define PDMIBASE_2_DRVINS(pInterface) \
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync ( (PPDMDRVINS)((uintptr_t)pInterface - RT_OFFSETOF(PDMDRVINS, IBase)) )
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/** Converts a pointer to PDMDRVINS::IBase to a PVBOXDISK. */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync#define PDMIBASE_2_VBOXDISK(pInterface) \
0abd77741a608f6c41c8dfcd4781b8b84adf1044vboxsync ( PDMINS_2_DATA(PDMIBASE_2_DRVINS(pInterface), PVBOXDISK) )
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync/** Converts a pointer to VBOXDISK::IMediaAsync to a PVBOXDISK. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync#define PDMIMEDIAASYNC_2_VBOXDISK(pInterface) \
9496f2d398b49813176939d7a339ae513d5175efvboxsync ( (PVBOXDISK)((uintptr_t)pInterface - RT_OFFSETOF(VBOXDISK, IMediaAsync)) )
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync/** Converts a pointer to VBOXDISK::ITransportAsyncPort to a PVBOXDISK. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync#define PDMITRANSPORTASYNCPORT_2_VBOXDISK(pInterface) \
9496f2d398b49813176939d7a339ae513d5175efvboxsync ( (PVBOXDISK)((uintptr_t)pInterface - RT_OFFSETOF(VBOXDISK, ITransportAsyncPort)) )
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync/**
9496f2d398b49813176939d7a339ae513d5175efvboxsync * Structure for an async I/O task.
9496f2d398b49813176939d7a339ae513d5175efvboxsync */
9496f2d398b49813176939d7a339ae513d5175efvboxsynctypedef struct DRVVDASYNCTASK
9496f2d398b49813176939d7a339ae513d5175efvboxsync{
9496f2d398b49813176939d7a339ae513d5175efvboxsync /** Callback which is called on completion. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync PFNVDCOMPLETED pfnCompleted;
9496f2d398b49813176939d7a339ae513d5175efvboxsync /** Opqaue user data which is passed on completion. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync void *pvUser;
9496f2d398b49813176939d7a339ae513d5175efvboxsync /** Opaque user data the caller passed on transfer initiation. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync void *pvUserCaller;
9496f2d398b49813176939d7a339ae513d5175efvboxsync} DRVVDASYNCTASK, *PDRVVDASYNCTASK;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync/**
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync * VBox disk container, image information, private part.
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync */
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsynctypedef struct VBOXIMAGE
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync{
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync /** Pointer to next image. */
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync struct VBOXIMAGE *pNext;
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync /** Pointer to list of VD interfaces. Per-image. */
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync PVDINTERFACE pVDIfsImage;
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync /** Common structure for the configuration information interface. */
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync VDINTERFACE VDIConfig;
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync} VBOXIMAGE, *PVBOXIMAGE;
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/**
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * VBox disk container media main structure, private part.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsynctypedef struct VBOXDISK
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync{
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /** The VBox disk container. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync PVBOXHDD pDisk;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /** The media interface. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync PDMIMEDIA IMedia;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /** Pointer to the driver instance. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync PPDMDRVINS pDrvIns;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /** Flag whether suspend has changed image open mode to read only. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync bool fTempReadOnly;
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync /** Pointer to list of VD interfaces. Per-disk. */
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync PVDINTERFACE pVDIfsDisk;
9496f2d398b49813176939d7a339ae513d5175efvboxsync /** Common structure for the supported error interface. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync VDINTERFACE VDIError;
9496f2d398b49813176939d7a339ae513d5175efvboxsync /** Callback table for error interface. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync VDINTERFACEERROR VDIErrorCallbacks;
9496f2d398b49813176939d7a339ae513d5175efvboxsync /** Common structure for the supported async I/O interface. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync VDINTERFACE VDIAsyncIO;
9496f2d398b49813176939d7a339ae513d5175efvboxsync /** Callback table for async I/O interface. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync VDINTERFACEASYNCIO VDIAsyncIOCallbacks;
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync /** Callback table for the configuration information interface. */
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync VDINTERFACECONFIG VDIConfigCallbacks;
9496f2d398b49813176939d7a339ae513d5175efvboxsync /** Flag whether opened disk suppports async I/O operations. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync bool fAsyncIOSupported;
9496f2d398b49813176939d7a339ae513d5175efvboxsync /** The async media interface. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync PDMIMEDIAASYNC IMediaAsync;
9496f2d398b49813176939d7a339ae513d5175efvboxsync /** The async media port interface above. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync PPDMIMEDIAASYNCPORT pDrvMediaAsyncPort;
9496f2d398b49813176939d7a339ae513d5175efvboxsync /** Pointer to the asynchronous media driver below. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync PPDMITRANSPORTASYNC pDrvTransportAsync;
9496f2d398b49813176939d7a339ae513d5175efvboxsync /** Async transport port interface. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync PDMITRANSPORTASYNCPORT ITransportAsyncPort;
9496f2d398b49813176939d7a339ae513d5175efvboxsync /** Our cache to reduce allocation overhead. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync PRTOBJCACHE pCache;
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync /** Pointer to the list of data we need to keep per image. */
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync PVBOXIMAGE pImages;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync} VBOXDISK, *PVBOXDISK;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/*******************************************************************************
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync* Error reporting callback *
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync*******************************************************************************/
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsyncstatic void drvvdErrorCallback(void *pvUser, int rc, RT_SRC_POS_DECL,
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync const char *pszFormat, va_list va)
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync{
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync PPDMDRVINS pDrvIns = (PPDMDRVINS)pvUser;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync pDrvIns->pDrvHlp->pfnVMSetErrorV(pDrvIns, rc, RT_SRC_POS_ARGS, pszFormat, va);
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync}
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync/**
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync * Internal: allocate new image descriptor and put it in the list
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync */
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsyncstatic PVBOXIMAGE drvvdNewImage(PVBOXDISK pThis)
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync{
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync AssertPtr(pThis);
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync PVBOXIMAGE pImage = (PVBOXIMAGE)RTMemAllocZ(sizeof(VBOXIMAGE));
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync if (pImage)
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync {
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync pImage->pVDIfsImage = NULL;
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync PVBOXIMAGE *pp = &pThis->pImages;
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync while (*pp != NULL)
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync pp = &(*pp)->pNext;
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync *pp = pImage;
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync pImage->pNext = NULL;
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync }
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync return pImage;
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync}
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync/**
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync * Internal: free the list of images descriptors.
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync */
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsyncstatic void drvvdFreeImages(PVBOXDISK pThis)
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync{
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync while (pThis->pImages != NULL)
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync {
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync PVBOXIMAGE p = pThis->pImages;
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync pThis->pImages = pThis->pImages->pNext;
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync RTMemFree(p);
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync }
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync}
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync/*******************************************************************************
9496f2d398b49813176939d7a339ae513d5175efvboxsync* VD Async I/O interface implementation *
9496f2d398b49813176939d7a339ae513d5175efvboxsync*******************************************************************************/
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsyncstatic DECLCALLBACK(int) drvvdAsyncIOOpen(void *pvUser, const char *pszLocation, bool fReadonly, void **ppStorage)
9496f2d398b49813176939d7a339ae513d5175efvboxsync{
9496f2d398b49813176939d7a339ae513d5175efvboxsync PVBOXDISK pDrvVD = (PVBOXDISK)pvUser;
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync return pDrvVD->pDrvTransportAsync->pfnOpen(pDrvVD->pDrvTransportAsync, pszLocation, fReadonly, ppStorage);
9496f2d398b49813176939d7a339ae513d5175efvboxsync}
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsyncstatic DECLCALLBACK(int) drvvdAsyncIOClose(void *pvUser, void *pStorage)
9496f2d398b49813176939d7a339ae513d5175efvboxsync{
9496f2d398b49813176939d7a339ae513d5175efvboxsync PVBOXDISK pDrvVD = (PVBOXDISK)pvUser;
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync AssertMsg(pDrvVD->pDrvTransportAsync, ("Asynchronous function called but no async transport interface below\n"));
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync return pDrvVD->pDrvTransportAsync->pfnClose(pDrvVD->pDrvTransportAsync, pStorage);
9496f2d398b49813176939d7a339ae513d5175efvboxsync}
9496f2d398b49813176939d7a339ae513d5175efvboxsync
b7a5b3f9f9ecce32ddacf8404c625ce0451bbdc1vboxsyncstatic DECLCALLBACK(int) drvvdAsyncIORead(void *pvUser, void *pStorage, uint64_t uOffset,
9496f2d398b49813176939d7a339ae513d5175efvboxsync size_t cbRead, void *pvBuf, size_t *pcbRead)
9496f2d398b49813176939d7a339ae513d5175efvboxsync{
9496f2d398b49813176939d7a339ae513d5175efvboxsync PVBOXDISK pDrvVD = (PVBOXDISK)pvUser;
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync AssertMsg(pDrvVD->pDrvTransportAsync, ("Asynchronous function called but no async transport interface below\n"));
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync return pDrvVD->pDrvTransportAsync->pfnReadSynchronous(pDrvVD->pDrvTransportAsync,
9496f2d398b49813176939d7a339ae513d5175efvboxsync pStorage,
9496f2d398b49813176939d7a339ae513d5175efvboxsync uOffset, pvBuf, cbRead, pcbRead);
9496f2d398b49813176939d7a339ae513d5175efvboxsync}
9496f2d398b49813176939d7a339ae513d5175efvboxsync
b7a5b3f9f9ecce32ddacf8404c625ce0451bbdc1vboxsyncstatic DECLCALLBACK(int) drvvdAsyncIOWrite(void *pvUser, void *pStorage, uint64_t uOffset,
9496f2d398b49813176939d7a339ae513d5175efvboxsync size_t cbWrite, const void *pvBuf, size_t *pcbWritten)
9496f2d398b49813176939d7a339ae513d5175efvboxsync{
9496f2d398b49813176939d7a339ae513d5175efvboxsync PVBOXDISK pDrvVD = (PVBOXDISK)pvUser;
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync AssertMsg(pDrvVD->pDrvTransportAsync, ("Asynchronous function called but no async transport interface below\n"));
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync return pDrvVD->pDrvTransportAsync->pfnWriteSynchronous(pDrvVD->pDrvTransportAsync,
9496f2d398b49813176939d7a339ae513d5175efvboxsync pStorage,
9496f2d398b49813176939d7a339ae513d5175efvboxsync uOffset, pvBuf, cbWrite, pcbWritten);
9496f2d398b49813176939d7a339ae513d5175efvboxsync}
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsyncstatic DECLCALLBACK(int) drvvdAsyncIOFlush(void *pvUser, void *pStorage)
9496f2d398b49813176939d7a339ae513d5175efvboxsync{
9496f2d398b49813176939d7a339ae513d5175efvboxsync PVBOXDISK pDrvVD = (PVBOXDISK)pvUser;
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync AssertMsg(pDrvVD->pDrvTransportAsync, ("Asynchronous function called but no async transport interface below\n"));
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync return pDrvVD->pDrvTransportAsync->pfnFlushSynchronous(pDrvVD->pDrvTransportAsync, pStorage);
9496f2d398b49813176939d7a339ae513d5175efvboxsync}
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsyncstatic DECLCALLBACK(int) drvvdAsyncIOPrepareRead(void *pvUser, void *pStorage, uint64_t uOffset, void *pvBuf, size_t cbRead, void **ppTask)
9496f2d398b49813176939d7a339ae513d5175efvboxsync{
9496f2d398b49813176939d7a339ae513d5175efvboxsync PVBOXDISK pDrvVD = (PVBOXDISK)pvUser;
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync AssertMsg(pDrvVD->pDrvTransportAsync, ("Asynchronous function called but no async transport interface below\n"));
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync return pDrvVD->pDrvTransportAsync->pfnPrepareRead(pDrvVD->pDrvTransportAsync, pStorage, uOffset, pvBuf, cbRead, ppTask);
9496f2d398b49813176939d7a339ae513d5175efvboxsync}
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsyncstatic DECLCALLBACK(int) drvvdAsyncIOPrepareWrite(void *pvUser, void *pStorage, uint64_t uOffset, void *pvBuf, size_t cbWrite, void **ppTask)
9496f2d398b49813176939d7a339ae513d5175efvboxsync{
9496f2d398b49813176939d7a339ae513d5175efvboxsync PVBOXDISK pDrvVD = (PVBOXDISK)pvUser;
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync AssertMsg(pDrvVD->pDrvTransportAsync, ("Asynchronous function called but no async transport interface below\n"));
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync return pDrvVD->pDrvTransportAsync->pfnPrepareWrite(pDrvVD->pDrvTransportAsync, pStorage, uOffset, pvBuf, cbWrite, ppTask);
9496f2d398b49813176939d7a339ae513d5175efvboxsync}
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsyncstatic DECLCALLBACK(int) drvvdAsyncIOTasksSubmit(void *pvUser, void *apTasks[], unsigned cTasks, void *pvUser2,
9496f2d398b49813176939d7a339ae513d5175efvboxsync void *pvUserCaller, PFNVDCOMPLETED pfnTasksCompleted)
9496f2d398b49813176939d7a339ae513d5175efvboxsync{
9496f2d398b49813176939d7a339ae513d5175efvboxsync PVBOXDISK pDrvVD = (PVBOXDISK)pvUser;
9496f2d398b49813176939d7a339ae513d5175efvboxsync PDRVVDASYNCTASK pDrvVDAsyncTask;
9496f2d398b49813176939d7a339ae513d5175efvboxsync int rc;
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync AssertMsg(pDrvVD->pDrvTransportAsync, ("Asynchronous function called but no async transport interface below\n"));
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync rc = RTCacheRequest(pDrvVD->pCache, (void **)&pDrvVDAsyncTask);
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync if (RT_FAILURE(rc))
9496f2d398b49813176939d7a339ae513d5175efvboxsync return rc;
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync pDrvVDAsyncTask->pfnCompleted = pfnTasksCompleted;
9496f2d398b49813176939d7a339ae513d5175efvboxsync pDrvVDAsyncTask->pvUser = pvUser2;
9496f2d398b49813176939d7a339ae513d5175efvboxsync pDrvVDAsyncTask->pvUserCaller = pvUserCaller;
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync return pDrvVD->pDrvTransportAsync->pfnTasksSubmit(pDrvVD->pDrvTransportAsync, apTasks, cTasks, pDrvVDAsyncTask);
9496f2d398b49813176939d7a339ae513d5175efvboxsync}
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync/*******************************************************************************
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync* VD Configuration interface implementation *
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync*******************************************************************************/
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsyncstatic bool drvvdCfgAreValuesValid(PVDCFGNODE pNode, const char *pszzValid)
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync{
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync return CFGMR3AreValuesValid((PCFGMNODE)pNode, pszzValid);
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync}
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsyncstatic int drvvdCfgQueryType(PVDCFGNODE pNode, const char *pszName, PVDCFGVALUETYPE penmType)
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync{
860f2e2a6796df7329c811765dda55e58ed1126avboxsync Assert(VDCFGVALUETYPE_INTEGER == (VDCFGVALUETYPE)CFGMVALUETYPE_INTEGER);
860f2e2a6796df7329c811765dda55e58ed1126avboxsync Assert(VDCFGVALUETYPE_STRING == (VDCFGVALUETYPE)CFGMVALUETYPE_STRING);
860f2e2a6796df7329c811765dda55e58ed1126avboxsync Assert(VDCFGVALUETYPE_BYTES == (VDCFGVALUETYPE)CFGMVALUETYPE_BYTES);
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync return CFGMR3QueryType((PCFGMNODE)pNode, pszName, (PCFGMVALUETYPE)penmType);
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync}
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsyncstatic int drvvdCfgQuerySize(PVDCFGNODE pNode, const char *pszName, size_t *pcb)
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync{
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync return CFGMR3QuerySize((PCFGMNODE)pNode, pszName, pcb);
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync}
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsyncstatic int drvvdCfgQueryInteger(PVDCFGNODE pNode, const char *pszName, uint64_t *pu64)
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync{
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync return CFGMR3QueryInteger((PCFGMNODE)pNode, pszName, pu64);
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync}
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsyncstatic int drvvdCfgQueryIntegerDef(PVDCFGNODE pNode, const char *pszName, uint64_t *pu64, uint64_t u64Def)
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync{
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync return CFGMR3QueryInteger((PCFGMNODE)pNode, pszName, pu64);
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync}
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsyncstatic int drvvdCfgQueryString(PVDCFGNODE pNode, const char *pszName, char *pszString, size_t cchString)
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync{
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync return CFGMR3QueryString((PCFGMNODE)pNode, pszName, pszString, cchString);
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync}
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsyncstatic int drvvdCfgQueryStringDef(PVDCFGNODE pNode, const char *pszName, char *pszString, size_t cchString, const char *pszDef)
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync{
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync return CFGMR3QueryStringDef((PCFGMNODE)pNode, pszName, pszString, cchString, pszDef);
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync}
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsyncstatic int drvvdCfgQueryBytes(PVDCFGNODE pNode, const char *pszName, void *pvData, size_t cbData)
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync{
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync return CFGMR3QueryBytes((PCFGMNODE)pNode, pszName, pvData, cbData);
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync}
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/*******************************************************************************
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync* Media interface methods *
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync*******************************************************************************/
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/** @copydoc PDMIMEDIA::pfnRead */
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsyncstatic DECLCALLBACK(int) drvvdRead(PPDMIMEDIA pInterface,
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync uint64_t off, void *pvBuf, size_t cbRead)
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync{
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync LogFlow(("%s: off=%#llx pvBuf=%p cbRead=%d\n", __FUNCTION__,
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync off, pvBuf, cbRead));
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync int rc = VDRead(pThis->pDisk, off, pvBuf, cbRead);
b7a5b3f9f9ecce32ddacf8404c625ce0451bbdc1vboxsync if (RT_SUCCESS(rc))
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync Log2(("%s: off=%#llx pvBuf=%p cbRead=%d %.*Vhxd\n", __FUNCTION__,
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync off, pvBuf, cbRead, cbRead, pvBuf));
fe813b3594039ba864493438e78ee0e7132bc445vboxsync LogFlow(("%s: returns %Rrc\n", __FUNCTION__, rc));
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync return rc;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync}
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/** @copydoc PDMIMEDIA::pfnWrite */
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsyncstatic DECLCALLBACK(int) drvvdWrite(PPDMIMEDIA pInterface,
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync uint64_t off, const void *pvBuf,
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync size_t cbWrite)
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync{
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync LogFlow(("%s: off=%#llx pvBuf=%p cbWrite=%d\n", __FUNCTION__,
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync off, pvBuf, cbWrite));
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync Log2(("%s: off=%#llx pvBuf=%p cbWrite=%d %.*Vhxd\n", __FUNCTION__,
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync off, pvBuf, cbWrite, cbWrite, pvBuf));
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync int rc = VDWrite(pThis->pDisk, off, pvBuf, cbWrite);
fe813b3594039ba864493438e78ee0e7132bc445vboxsync LogFlow(("%s: returns %Rrc\n", __FUNCTION__, rc));
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync return rc;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync}
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/** @copydoc PDMIMEDIA::pfnFlush */
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsyncstatic DECLCALLBACK(int) drvvdFlush(PPDMIMEDIA pInterface)
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync{
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync LogFlow(("%s:\n", __FUNCTION__));
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync int rc = VDFlush(pThis->pDisk);
fe813b3594039ba864493438e78ee0e7132bc445vboxsync LogFlow(("%s: returns %Rrc\n", __FUNCTION__, rc));
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync return rc;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync}
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/** @copydoc PDMIMEDIA::pfnGetSize */
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsyncstatic DECLCALLBACK(uint64_t) drvvdGetSize(PPDMIMEDIA pInterface)
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync{
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync LogFlow(("%s:\n", __FUNCTION__));
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync uint64_t cb = VDGetSize(pThis->pDisk, VD_LAST_IMAGE);
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync LogFlow(("%s: returns %#llx (%llu)\n", __FUNCTION__, cb, cb));
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync return cb;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync}
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/** @copydoc PDMIMEDIA::pfnIsReadOnly */
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsyncstatic DECLCALLBACK(bool) drvvdIsReadOnly(PPDMIMEDIA pInterface)
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync{
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync LogFlow(("%s:\n", __FUNCTION__));
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync bool f = VDIsReadOnly(pThis->pDisk);
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync LogFlow(("%s: returns %d\n", __FUNCTION__, f));
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync return f;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync}
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync/** @copydoc PDMIMEDIA::pfnBiosGetPCHSGeometry */
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsyncstatic DECLCALLBACK(int) drvvdBiosGetPCHSGeometry(PPDMIMEDIA pInterface,
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync PPDMMEDIAGEOMETRY pPCHSGeometry)
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync{
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync LogFlow(("%s:\n", __FUNCTION__));
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync int rc = VDGetPCHSGeometry(pThis->pDisk, VD_LAST_IMAGE, pPCHSGeometry);
b7a5b3f9f9ecce32ddacf8404c625ce0451bbdc1vboxsync if (RT_FAILURE(rc))
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync {
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync Log(("%s: geometry not available.\n", __FUNCTION__));
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync rc = VERR_PDM_GEOMETRY_NOT_SET;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync }
fe813b3594039ba864493438e78ee0e7132bc445vboxsync LogFlow(("%s: returns %Rrc (CHS=%d/%d/%d)\n", __FUNCTION__,
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync rc, pPCHSGeometry->cCylinders, pPCHSGeometry->cHeads, pPCHSGeometry->cSectors));
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync return rc;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync}
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync/** @copydoc PDMIMEDIA::pfnBiosSetPCHSGeometry */
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsyncstatic DECLCALLBACK(int) drvvdBiosSetPCHSGeometry(PPDMIMEDIA pInterface,
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync PCPDMMEDIAGEOMETRY pPCHSGeometry)
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync{
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync LogFlow(("%s: CHS=%d/%d/%d\n", __FUNCTION__,
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync pPCHSGeometry->cCylinders, pPCHSGeometry->cHeads, pPCHSGeometry->cSectors));
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync int rc = VDSetPCHSGeometry(pThis->pDisk, VD_LAST_IMAGE, pPCHSGeometry);
fe813b3594039ba864493438e78ee0e7132bc445vboxsync LogFlow(("%s: returns %Rrc\n", __FUNCTION__, rc));
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync return rc;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync}
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync/** @copydoc PDMIMEDIA::pfnBiosGetLCHSGeometry */
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsyncstatic DECLCALLBACK(int) drvvdBiosGetLCHSGeometry(PPDMIMEDIA pInterface,
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync PPDMMEDIAGEOMETRY pLCHSGeometry)
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync{
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync LogFlow(("%s:\n", __FUNCTION__));
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync int rc = VDGetLCHSGeometry(pThis->pDisk, VD_LAST_IMAGE, pLCHSGeometry);
b7a5b3f9f9ecce32ddacf8404c625ce0451bbdc1vboxsync if (RT_FAILURE(rc))
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync {
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync Log(("%s: geometry not available.\n", __FUNCTION__));
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync rc = VERR_PDM_GEOMETRY_NOT_SET;
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync }
fe813b3594039ba864493438e78ee0e7132bc445vboxsync LogFlow(("%s: returns %Rrc (CHS=%d/%d/%d)\n", __FUNCTION__,
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync rc, pLCHSGeometry->cCylinders, pLCHSGeometry->cHeads, pLCHSGeometry->cSectors));
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync return rc;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync}
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync/** @copydoc PDMIMEDIA::pfnBiosSetLCHSGeometry */
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsyncstatic DECLCALLBACK(int) drvvdBiosSetLCHSGeometry(PPDMIMEDIA pInterface,
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync PCPDMMEDIAGEOMETRY pLCHSGeometry)
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync{
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync LogFlow(("%s: CHS=%d/%d/%d\n", __FUNCTION__,
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync pLCHSGeometry->cCylinders, pLCHSGeometry->cHeads, pLCHSGeometry->cSectors));
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync int rc = VDSetLCHSGeometry(pThis->pDisk, VD_LAST_IMAGE, pLCHSGeometry);
fe813b3594039ba864493438e78ee0e7132bc445vboxsync LogFlow(("%s: returns %Rrc\n", __FUNCTION__, rc));
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync return rc;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync}
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/** @copydoc PDMIMEDIA::pfnGetUuid */
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsyncstatic DECLCALLBACK(int) drvvdGetUuid(PPDMIMEDIA pInterface, PRTUUID pUuid)
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync{
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync LogFlow(("%s:\n", __FUNCTION__));
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync int rc = VDGetUuid(pThis->pDisk, 0, pUuid);
af90f37ee9175da3aed36bda13519a917cc4effbvboxsync LogFlow(("%s: returns %Rrc ({%RTuuid})\n", __FUNCTION__, rc, pUuid));
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync return rc;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync}
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync/*******************************************************************************
9496f2d398b49813176939d7a339ae513d5175efvboxsync* Async Media interface methods *
9496f2d398b49813176939d7a339ae513d5175efvboxsync*******************************************************************************/
9496f2d398b49813176939d7a339ae513d5175efvboxsync
b7a5b3f9f9ecce32ddacf8404c625ce0451bbdc1vboxsyncstatic DECLCALLBACK(int) drvvdStartRead(PPDMIMEDIAASYNC pInterface, uint64_t uOffset,
9496f2d398b49813176939d7a339ae513d5175efvboxsync PPDMDATASEG paSeg, unsigned cSeg,
9496f2d398b49813176939d7a339ae513d5175efvboxsync size_t cbRead, void *pvUser)
9496f2d398b49813176939d7a339ae513d5175efvboxsync{
9496f2d398b49813176939d7a339ae513d5175efvboxsync LogFlow(("%s: uOffset=%#llx paSeg=%#p cSeg=%u cbRead=%d\n pvUser=%#p", __FUNCTION__,
9496f2d398b49813176939d7a339ae513d5175efvboxsync uOffset, paSeg, cSeg, cbRead, pvUser));
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync PVBOXDISK pThis = PDMIMEDIAASYNC_2_VBOXDISK(pInterface);
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync int rc = VDAsyncRead(pThis->pDisk, uOffset, cbRead, paSeg, cSeg, pvUser);
fe813b3594039ba864493438e78ee0e7132bc445vboxsync LogFlow(("%s: returns %Rrc\n", __FUNCTION__, rc));
9496f2d398b49813176939d7a339ae513d5175efvboxsync return rc;
9496f2d398b49813176939d7a339ae513d5175efvboxsync}
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsyncstatic DECLCALLBACK(int) drvvdStartWrite(PPDMIMEDIAASYNC pInterface, uint64_t uOffset,
9496f2d398b49813176939d7a339ae513d5175efvboxsync PPDMDATASEG paSeg, unsigned cSeg,
9496f2d398b49813176939d7a339ae513d5175efvboxsync size_t cbWrite, void *pvUser)
9496f2d398b49813176939d7a339ae513d5175efvboxsync{
9496f2d398b49813176939d7a339ae513d5175efvboxsync LogFlow(("%s: uOffset=%#llx paSeg=%#p cSeg=%u cbWrite=%d\n pvUser=%#p", __FUNCTION__,
9496f2d398b49813176939d7a339ae513d5175efvboxsync uOffset, paSeg, cSeg, cbWrite, pvUser));
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync PVBOXDISK pThis = PDMIMEDIAASYNC_2_VBOXDISK(pInterface);
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync int rc = VDAsyncWrite(pThis->pDisk, uOffset, cbWrite, paSeg, cSeg, pvUser);
fe813b3594039ba864493438e78ee0e7132bc445vboxsync LogFlow(("%s: returns %Rrc\n", __FUNCTION__, rc));
9496f2d398b49813176939d7a339ae513d5175efvboxsync return rc;
9496f2d398b49813176939d7a339ae513d5175efvboxsync}
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync/*******************************************************************************
9496f2d398b49813176939d7a339ae513d5175efvboxsync* Async transport port interface methods *
9496f2d398b49813176939d7a339ae513d5175efvboxsync*******************************************************************************/
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsyncstatic DECLCALLBACK(int) drvvdTasksCompleteNotify(PPDMITRANSPORTASYNCPORT pInterface, void *pvUser)
9496f2d398b49813176939d7a339ae513d5175efvboxsync{
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync PVBOXDISK pThis = PDMITRANSPORTASYNCPORT_2_VBOXDISK(pInterface);
9496f2d398b49813176939d7a339ae513d5175efvboxsync PDRVVDASYNCTASK pDrvVDAsyncTask = (PDRVVDASYNCTASK)pvUser;
9496f2d398b49813176939d7a339ae513d5175efvboxsync int rc = VINF_VDI_ASYNC_IO_FINISHED;
b7a5b3f9f9ecce32ddacf8404c625ce0451bbdc1vboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync /* Having a completion callback for a task is not mandatory. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync if (pDrvVDAsyncTask->pfnCompleted)
9496f2d398b49813176939d7a339ae513d5175efvboxsync rc = pDrvVDAsyncTask->pfnCompleted(pDrvVDAsyncTask->pvUser);
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync /* Check if the request is finished. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync if (rc == VINF_VDI_ASYNC_IO_FINISHED)
9496f2d398b49813176939d7a339ae513d5175efvboxsync {
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync rc = pThis->pDrvMediaAsyncPort->pfnTransferCompleteNotify(pThis->pDrvMediaAsyncPort, pDrvVDAsyncTask->pvUserCaller);
9496f2d398b49813176939d7a339ae513d5175efvboxsync }
9496f2d398b49813176939d7a339ae513d5175efvboxsync else if (rc == VERR_VDI_ASYNC_IO_IN_PROGRESS)
9496f2d398b49813176939d7a339ae513d5175efvboxsync rc = VINF_SUCCESS;
9496f2d398b49813176939d7a339ae513d5175efvboxsync
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync rc = RTCacheInsert(pThis->pCache, pDrvVDAsyncTask);
9496f2d398b49813176939d7a339ae513d5175efvboxsync AssertRC(rc);
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync return rc;
9496f2d398b49813176939d7a339ae513d5175efvboxsync}
9496f2d398b49813176939d7a339ae513d5175efvboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/*******************************************************************************
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync* Base interface methods *
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync*******************************************************************************/
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/** @copydoc PDMIBASE::pfnQueryInterface */
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsyncstatic DECLCALLBACK(void *) drvvdQueryInterface(PPDMIBASE pInterface,
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync PDMINTERFACE enmInterface)
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync{
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync PPDMDRVINS pDrvIns = PDMIBASE_2_DRVINS(pInterface);
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync PVBOXDISK pThis = PDMINS_2_DATA(pDrvIns, PVBOXDISK);
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync switch (enmInterface)
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync {
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync case PDMINTERFACE_BASE:
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync return &pDrvIns->IBase;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync case PDMINTERFACE_MEDIA:
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync return &pThis->IMedia;
9496f2d398b49813176939d7a339ae513d5175efvboxsync case PDMINTERFACE_MEDIA_ASYNC:
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync return pThis->fAsyncIOSupported ? &pThis->IMediaAsync : NULL;
9496f2d398b49813176939d7a339ae513d5175efvboxsync case PDMINTERFACE_TRANSPORT_ASYNC_PORT:
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync return &pThis->ITransportAsyncPort;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync default:
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync return NULL;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync }
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync}
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/*******************************************************************************
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync* Driver methods *
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync*******************************************************************************/
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/**
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * Construct a VBox disk media driver instance.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync *
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * @returns VBox status.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * @param pDrvIns The driver instance data.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * If the registration structure is needed, pDrvIns->pDrvReg points to it.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * @param pCfgHandle Configuration node handle for the driver. Use this to obtain the configuration
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * of the driver instance. It's also found in pDrvIns->pCfgHandle as it's expected
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * to be used frequently in this function.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync */
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsyncstatic DECLCALLBACK(int) drvvdConstruct(PPDMDRVINS pDrvIns,
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync PCFGMNODE pCfgHandle)
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync{
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync LogFlow(("%s:\n", __FUNCTION__));
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync PVBOXDISK pThis = PDMINS_2_DATA(pDrvIns, PVBOXDISK);
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync int rc = VINF_SUCCESS;
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync char *pszName = NULL; /**< The path of the disk image file. */
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync char *pszFormat = NULL; /**< The format backed to use for this image. */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync bool fReadOnly; /**< True if the media is readonly. */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync bool fHonorZeroWrites; /**< True if zero blocks should be written. */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /*
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * Init the static parts.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync */
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync pDrvIns->IBase.pfnQueryInterface = drvvdQueryInterface;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->pDrvIns = pDrvIns;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->fTempReadOnly = false;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->pDisk = NULL;
090d729e786b999dc285f8ea267f9effd1319544vboxsync pThis->fAsyncIOSupported = false;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /* IMedia */
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->IMedia.pfnRead = drvvdRead;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->IMedia.pfnWrite = drvvdWrite;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->IMedia.pfnFlush = drvvdFlush;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->IMedia.pfnGetSize = drvvdGetSize;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->IMedia.pfnIsReadOnly = drvvdIsReadOnly;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->IMedia.pfnBiosGetPCHSGeometry = drvvdBiosGetPCHSGeometry;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->IMedia.pfnBiosSetPCHSGeometry = drvvdBiosSetPCHSGeometry;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->IMedia.pfnBiosGetLCHSGeometry = drvvdBiosGetLCHSGeometry;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->IMedia.pfnBiosSetLCHSGeometry = drvvdBiosSetLCHSGeometry;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->IMedia.pfnGetUuid = drvvdGetUuid;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync /* IMediaAsync */
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->IMediaAsync.pfnStartRead = drvvdStartRead;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->IMediaAsync.pfnStartWrite = drvvdStartWrite;
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync /* ITransportAsyncPort */
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->ITransportAsyncPort.pfnTaskCompleteNotify = drvvdTasksCompleteNotify;
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync /* Initialize supported VD interfaces. */
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync pThis->pVDIfsDisk = NULL;
68a4ee3a31a0807abd03eae881c1bbaf4d42ee6dvboxsync
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->VDIErrorCallbacks.cbSize = sizeof(VDINTERFACEERROR);
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->VDIErrorCallbacks.enmInterface = VDINTERFACETYPE_ERROR;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->VDIErrorCallbacks.pfnError = drvvdErrorCallback;
9496f2d398b49813176939d7a339ae513d5175efvboxsync
68a4ee3a31a0807abd03eae881c1bbaf4d42ee6dvboxsync rc = VDInterfaceAdd(&pThis->VDIError, "DrvVD_VDIError", VDINTERFACETYPE_ERROR,
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync &pThis->VDIErrorCallbacks, pDrvIns, &pThis->pVDIfsDisk);
9496f2d398b49813176939d7a339ae513d5175efvboxsync AssertRC(rc);
9496f2d398b49813176939d7a339ae513d5175efvboxsync
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->VDIAsyncIOCallbacks.cbSize = sizeof(VDINTERFACEASYNCIO);
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->VDIAsyncIOCallbacks.enmInterface = VDINTERFACETYPE_ASYNCIO;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->VDIAsyncIOCallbacks.pfnOpen = drvvdAsyncIOOpen;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->VDIAsyncIOCallbacks.pfnClose = drvvdAsyncIOClose;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->VDIAsyncIOCallbacks.pfnRead = drvvdAsyncIORead;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->VDIAsyncIOCallbacks.pfnWrite = drvvdAsyncIOWrite;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->VDIAsyncIOCallbacks.pfnFlush = drvvdAsyncIOFlush;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->VDIAsyncIOCallbacks.pfnPrepareRead = drvvdAsyncIOPrepareRead;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->VDIAsyncIOCallbacks.pfnPrepareWrite = drvvdAsyncIOPrepareWrite;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->VDIAsyncIOCallbacks.pfnTasksSubmit = drvvdAsyncIOTasksSubmit;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync
68a4ee3a31a0807abd03eae881c1bbaf4d42ee6dvboxsync rc = VDInterfaceAdd(&pThis->VDIAsyncIO, "DrvVD_AsyncIO", VDINTERFACETYPE_ASYNCIO,
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync &pThis->VDIAsyncIOCallbacks, pThis, &pThis->pVDIfsDisk);
9496f2d398b49813176939d7a339ae513d5175efvboxsync AssertRC(rc);
9496f2d398b49813176939d7a339ae513d5175efvboxsync
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync /* This is just prepared here, the actual interface is per-image, so it's
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync * added later. No need to have separate callback tables. */
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->VDIConfigCallbacks.cbSize = sizeof(VDINTERFACECONFIG);
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->VDIConfigCallbacks.enmInterface = VDINTERFACETYPE_CONFIG;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->VDIConfigCallbacks.pfnAreValuesValid = drvvdCfgAreValuesValid;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->VDIConfigCallbacks.pfnQueryType = drvvdCfgQueryType;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->VDIConfigCallbacks.pfnQuerySize = drvvdCfgQuerySize;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->VDIConfigCallbacks.pfnQueryInteger = drvvdCfgQueryInteger;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->VDIConfigCallbacks.pfnQueryIntegerDef = drvvdCfgQueryIntegerDef;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->VDIConfigCallbacks.pfnQueryString = drvvdCfgQueryString;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->VDIConfigCallbacks.pfnQueryStringDef = drvvdCfgQueryStringDef;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->VDIConfigCallbacks.pfnQueryBytes = drvvdCfgQueryBytes;
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync /* List of images is empty now. */
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync pThis->pImages = NULL;
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync /* Try to attach async media port interface above.*/
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->pDrvMediaAsyncPort = (PPDMIMEDIAASYNCPORT)pDrvIns->pUpBase->pfnQueryInterface(pDrvIns->pUpBase, PDMINTERFACE_MEDIA_ASYNC_PORT);
9496f2d398b49813176939d7a339ae513d5175efvboxsync
b7a5b3f9f9ecce32ddacf8404c625ce0451bbdc1vboxsync /*
9496f2d398b49813176939d7a339ae513d5175efvboxsync * Attach the async transport driver below of the device above us implements the
9496f2d398b49813176939d7a339ae513d5175efvboxsync * async interface.
9496f2d398b49813176939d7a339ae513d5175efvboxsync */
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync if (pThis->pDrvMediaAsyncPort)
9496f2d398b49813176939d7a339ae513d5175efvboxsync {
9496f2d398b49813176939d7a339ae513d5175efvboxsync /* Try to attach the driver. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync PPDMIBASE pBase;
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync rc = pDrvIns->pDrvHlp->pfnAttach(pDrvIns, &pBase);
9496f2d398b49813176939d7a339ae513d5175efvboxsync if (rc == VERR_PDM_NO_ATTACHED_DRIVER)
9496f2d398b49813176939d7a339ae513d5175efvboxsync {
b7a5b3f9f9ecce32ddacf8404c625ce0451bbdc1vboxsync /*
090d729e786b999dc285f8ea267f9effd1319544vboxsync * Though the device supports async I/O there is no transport driver
090d729e786b999dc285f8ea267f9effd1319544vboxsync * which processes async requests.
9496f2d398b49813176939d7a339ae513d5175efvboxsync * Revert to non async I/O.
9496f2d398b49813176939d7a339ae513d5175efvboxsync */
090d729e786b999dc285f8ea267f9effd1319544vboxsync rc = VINF_SUCCESS;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->pDrvMediaAsyncPort = NULL;
090d729e786b999dc285f8ea267f9effd1319544vboxsync pThis->fAsyncIOSupported = false;
9496f2d398b49813176939d7a339ae513d5175efvboxsync }
b7a5b3f9f9ecce32ddacf8404c625ce0451bbdc1vboxsync else if (RT_FAILURE(rc))
9496f2d398b49813176939d7a339ae513d5175efvboxsync {
fe813b3594039ba864493438e78ee0e7132bc445vboxsync AssertMsgFailed(("Failed to attach async transport driver below rc=%Rrc\n", rc));
9496f2d398b49813176939d7a339ae513d5175efvboxsync }
9496f2d398b49813176939d7a339ae513d5175efvboxsync else
9496f2d398b49813176939d7a339ae513d5175efvboxsync {
090d729e786b999dc285f8ea267f9effd1319544vboxsync /*
090d729e786b999dc285f8ea267f9effd1319544vboxsync * The device supports async I/O and we successfully attached the transport driver.
090d729e786b999dc285f8ea267f9effd1319544vboxsync * Indicate that async I/O is supported for now as we check if the image backend supports
090d729e786b999dc285f8ea267f9effd1319544vboxsync * it later.
090d729e786b999dc285f8ea267f9effd1319544vboxsync */
090d729e786b999dc285f8ea267f9effd1319544vboxsync pThis->fAsyncIOSupported = true;
090d729e786b999dc285f8ea267f9effd1319544vboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync /* Success query the async transport interface. */
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->pDrvTransportAsync = (PPDMITRANSPORTASYNC)pBase->pfnQueryInterface(pBase, PDMINTERFACE_TRANSPORT_ASYNC);
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync if (!pThis->pDrvTransportAsync)
9496f2d398b49813176939d7a339ae513d5175efvboxsync {
090d729e786b999dc285f8ea267f9effd1319544vboxsync /* An attached driver without an async transport interface - impossible. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync AssertMsgFailed(("Configuration error: No async transport interface below!\n"));
9496f2d398b49813176939d7a339ae513d5175efvboxsync return VERR_PDM_MISSING_INTERFACE_ABOVE;
9496f2d398b49813176939d7a339ae513d5175efvboxsync }
9496f2d398b49813176939d7a339ae513d5175efvboxsync }
9496f2d398b49813176939d7a339ae513d5175efvboxsync }
9496f2d398b49813176939d7a339ae513d5175efvboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /*
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * Validate configuration and find all parent images.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * It's sort of up side down from the image dependency tree.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync unsigned iLevel = 0;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync PCFGMNODE pCurNode = pCfgHandle;
090d729e786b999dc285f8ea267f9effd1319544vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync for (;;)
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync {
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync bool fValid;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync if (pCurNode == pCfgHandle)
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync {
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync /* Toplevel configuration additionally contains the global image
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync * open flags. Some might be converted to per-image flags later. */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync fValid = CFGMR3AreValuesValid(pCurNode,
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync "Format\0Path\0"
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync "ReadOnly\0HonorZeroWrites\0");
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync }
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync else
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync {
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync /* All other image configurations only contain image name and
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync * the format information. */
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync fValid = CFGMR3AreValuesValid(pCurNode, "Format\0Path\0");
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync }
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync if (!fValid)
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync {
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync rc = PDMDrvHlpVMSetError(pDrvIns, VERR_PDM_DRVINS_UNKNOWN_CFG_VALUES,
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync RT_SRC_POS, N_("DrvVD: Configuration error: keys incorrect at level %d"), iLevel);
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync break;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync }
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync PCFGMNODE pParent = CFGMR3GetChild(pCurNode, "Parent");
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync if (!pParent)
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync break;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync pCurNode = pParent;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync iLevel++;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync }
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /*
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * Open the images.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync */
b7a5b3f9f9ecce32ddacf8404c625ce0451bbdc1vboxsync if (RT_SUCCESS(rc))
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync {
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync rc = VDCreate(pThis->pVDIfsDisk, &pThis->pDisk);
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync /* Error message is already set correctly. */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync }
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
b7a5b3f9f9ecce32ddacf8404c625ce0451bbdc1vboxsync while (pCurNode && RT_SUCCESS(rc))
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync {
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync /* Allocate per-image data. */
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync PVBOXIMAGE pImage = drvvdNewImage(pThis);
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync if (!pImage)
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync {
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync rc = VERR_NO_MEMORY;
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync break;
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync }
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /*
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * Read the image configuration.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync rc = CFGMR3QueryStringAlloc(pCurNode, "Path", &pszName);
b7a5b3f9f9ecce32ddacf8404c625ce0451bbdc1vboxsync if (RT_FAILURE(rc))
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync {
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync rc = PDMDRV_SET_ERROR(pDrvIns, rc,
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync N_("DrvVD: Configuration error: Querying \"Path\" as string failed"));
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync break;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync }
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync rc = CFGMR3QueryStringAlloc(pCfgHandle, "Format", &pszFormat);
b7a5b3f9f9ecce32ddacf8404c625ce0451bbdc1vboxsync if (RT_FAILURE(rc))
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync {
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync rc = PDMDRV_SET_ERROR(pDrvIns, rc,
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync N_("DrvVD: Configuration error: Querying \"Format\" as string failed"));
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync break;
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync }
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync if (iLevel == 0)
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync {
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync rc = CFGMR3QueryBool(pCurNode, "ReadOnly", &fReadOnly);
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync if (rc == VERR_CFGM_VALUE_NOT_FOUND)
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync fReadOnly = false;
b7a5b3f9f9ecce32ddacf8404c625ce0451bbdc1vboxsync else if (RT_FAILURE(rc))
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync {
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync rc = PDMDRV_SET_ERROR(pDrvIns, rc,
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync N_("DrvVD: Configuration error: Querying \"ReadOnly\" as boolean failed"));
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync break;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync }
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync rc = CFGMR3QueryBool(pCfgHandle, "HonorZeroWrites", &fHonorZeroWrites);
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync if (rc == VERR_CFGM_VALUE_NOT_FOUND)
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync fHonorZeroWrites = false;
b7a5b3f9f9ecce32ddacf8404c625ce0451bbdc1vboxsync else if (RT_FAILURE(rc))
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync {
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync rc = PDMDRV_SET_ERROR(pDrvIns, rc,
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync N_("DrvVD: Configuration error: Querying \"HonorZeroWrites\" as boolean failed"));
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync break;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync }
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync }
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync else
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync {
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync fReadOnly = true;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync fHonorZeroWrites = false;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync }
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync PCFGMNODE pCfg = CFGMR3GetChild(pCurNode, "VDConfig");
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync rc = VDInterfaceAdd(&pImage->VDIConfig, "DrvVD_Config", VDINTERFACETYPE_CONFIG,
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync &pThis->VDIConfigCallbacks, pCfg, &pImage->pVDIfsImage);
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync AssertRC(rc);
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /*
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * Open the image.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync unsigned uOpenFlags;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync if (fReadOnly)
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync uOpenFlags = VD_OPEN_FLAGS_READONLY;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync else
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync uOpenFlags = VD_OPEN_FLAGS_NORMAL;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync if (fHonorZeroWrites)
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync uOpenFlags |= VD_OPEN_FLAGS_HONOR_ZEROES;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync if (pThis->pDrvMediaAsyncPort)
9496f2d398b49813176939d7a339ae513d5175efvboxsync uOpenFlags |= VD_OPEN_FLAGS_ASYNC_IO;
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync /** Try to open backend in asyc I/O mode first. */
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync rc = VDOpen(pThis->pDisk, pszFormat, pszName, uOpenFlags, pImage->pVDIfsImage);
9496f2d398b49813176939d7a339ae513d5175efvboxsync if (rc == VERR_NOT_SUPPORTED)
9496f2d398b49813176939d7a339ae513d5175efvboxsync {
9c149a2789022f5011e88fb62f02a1cc8068e88fvboxsync /* Seems async I/O is not supported by the backend, open in normal mode. */
9496f2d398b49813176939d7a339ae513d5175efvboxsync uOpenFlags &= ~VD_OPEN_FLAGS_ASYNC_IO;
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync rc = VDOpen(pThis->pDisk, pszFormat, pszName, uOpenFlags, pImage->pVDIfsImage);
9496f2d398b49813176939d7a339ae513d5175efvboxsync }
9496f2d398b49813176939d7a339ae513d5175efvboxsync
b7a5b3f9f9ecce32ddacf8404c625ce0451bbdc1vboxsync if (RT_SUCCESS(rc))
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync Log(("%s: %d - Opened '%s' in %s mode\n", __FUNCTION__,
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync iLevel, pszName,
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync VDIsReadOnly(pThis->pDisk) ? "read-only" : "read-write"));
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync else
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync {
927320c7f81d3acdbccb5f3fea7548b4b7184b98vboxsync rc = PDMDrvHlpVMSetError(pDrvIns, rc, RT_SRC_POS,
927320c7f81d3acdbccb5f3fea7548b4b7184b98vboxsync N_("Failed to open image '%s' in %s mode rc=%Rrc\n"), pszName,
927320c7f81d3acdbccb5f3fea7548b4b7184b98vboxsync (uOpenFlags & VD_OPEN_FLAGS_READONLY) ? "readonly" : "read-write", rc);
9496f2d398b49813176939d7a339ae513d5175efvboxsync break;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync }
9496f2d398b49813176939d7a339ae513d5175efvboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync MMR3HeapFree(pszName);
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync pszName = NULL;
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync MMR3HeapFree(pszFormat);
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync pszFormat = NULL;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /* next */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync iLevel--;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync pCurNode = CFGMR3GetParent(pCurNode);
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync }
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
b7a5b3f9f9ecce32ddacf8404c625ce0451bbdc1vboxsync if (RT_FAILURE(rc))
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync {
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync if (VALID_PTR(pThis->pDisk))
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync {
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync VDDestroy(pThis->pDisk);
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->pDisk = NULL;
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync }
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync drvvdFreeImages(pThis);
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync if (VALID_PTR(pszName))
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync MMR3HeapFree(pszName);
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync if (VALID_PTR(pszFormat))
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync MMR3HeapFree(pszFormat);
9a1ffdf6460d98ab356438aaa25b1115b0a72558vboxsync
9a1ffdf6460d98ab356438aaa25b1115b0a72558vboxsync return rc;
d9d5fbda1b8f7a6f7fae555db60d0e636fd03af8vboxsync }
090d729e786b999dc285f8ea267f9effd1319544vboxsync else
9496f2d398b49813176939d7a339ae513d5175efvboxsync {
090d729e786b999dc285f8ea267f9effd1319544vboxsync /*
090d729e786b999dc285f8ea267f9effd1319544vboxsync * Check if every opened image supports async I/O.
090d729e786b999dc285f8ea267f9effd1319544vboxsync * If not we revert to non async I/O.
090d729e786b999dc285f8ea267f9effd1319544vboxsync */
090d729e786b999dc285f8ea267f9effd1319544vboxsync if (pThis->fAsyncIOSupported)
9496f2d398b49813176939d7a339ae513d5175efvboxsync {
090d729e786b999dc285f8ea267f9effd1319544vboxsync for (unsigned i = 0; i < VDGetCount(pThis->pDisk); i++)
090d729e786b999dc285f8ea267f9effd1319544vboxsync {
090d729e786b999dc285f8ea267f9effd1319544vboxsync VDBACKENDINFO vdBackendInfo;
090d729e786b999dc285f8ea267f9effd1319544vboxsync
090d729e786b999dc285f8ea267f9effd1319544vboxsync rc = VDBackendInfoSingle(pThis->pDisk, i, &vdBackendInfo);
090d729e786b999dc285f8ea267f9effd1319544vboxsync AssertRC(rc);
090d729e786b999dc285f8ea267f9effd1319544vboxsync
090d729e786b999dc285f8ea267f9effd1319544vboxsync if (vdBackendInfo.uBackendCaps & VD_CAP_ASYNC)
090d729e786b999dc285f8ea267f9effd1319544vboxsync {
090d729e786b999dc285f8ea267f9effd1319544vboxsync /*
090d729e786b999dc285f8ea267f9effd1319544vboxsync * Backend indicates support for at least some files.
090d729e786b999dc285f8ea267f9effd1319544vboxsync * Check if current file is supported with async I/O)
090d729e786b999dc285f8ea267f9effd1319544vboxsync */
090d729e786b999dc285f8ea267f9effd1319544vboxsync rc = VDImageIsAsyncIOSupported(pThis->pDisk, i, &pThis->fAsyncIOSupported);
090d729e786b999dc285f8ea267f9effd1319544vboxsync AssertRC(rc);
090d729e786b999dc285f8ea267f9effd1319544vboxsync
090d729e786b999dc285f8ea267f9effd1319544vboxsync /*
090d729e786b999dc285f8ea267f9effd1319544vboxsync * Check if current image is supported.
090d729e786b999dc285f8ea267f9effd1319544vboxsync * If not we can stop checking because
090d729e786b999dc285f8ea267f9effd1319544vboxsync * at least one does not support it.
090d729e786b999dc285f8ea267f9effd1319544vboxsync */
090d729e786b999dc285f8ea267f9effd1319544vboxsync if (!pThis->fAsyncIOSupported)
090d729e786b999dc285f8ea267f9effd1319544vboxsync break;
090d729e786b999dc285f8ea267f9effd1319544vboxsync }
090d729e786b999dc285f8ea267f9effd1319544vboxsync else
090d729e786b999dc285f8ea267f9effd1319544vboxsync {
090d729e786b999dc285f8ea267f9effd1319544vboxsync pThis->fAsyncIOSupported = false;
090d729e786b999dc285f8ea267f9effd1319544vboxsync break;
090d729e786b999dc285f8ea267f9effd1319544vboxsync }
090d729e786b999dc285f8ea267f9effd1319544vboxsync }
9496f2d398b49813176939d7a339ae513d5175efvboxsync }
090d729e786b999dc285f8ea267f9effd1319544vboxsync
090d729e786b999dc285f8ea267f9effd1319544vboxsync /*
090d729e786b999dc285f8ea267f9effd1319544vboxsync * We know definitly if async I/O is supported now.
77b1a2d8b5dbe2c0b5200794914239fee3c8ee5dvboxsync * Create cache if it is supported.
090d729e786b999dc285f8ea267f9effd1319544vboxsync */
090d729e786b999dc285f8ea267f9effd1319544vboxsync if (pThis->fAsyncIOSupported)
9496f2d398b49813176939d7a339ae513d5175efvboxsync {
090d729e786b999dc285f8ea267f9effd1319544vboxsync rc = RTCacheCreate(&pThis->pCache, 0, sizeof(DRVVDASYNCTASK), RTOBJCACHE_PROTECT_INSERT);
3bf9ff5b4c2da22ac8dce07123e55c2cec55d483vboxsync AssertMsgRC(rc, ("Failed to create cache rc=%Rrc\n", rc));
9496f2d398b49813176939d7a339ae513d5175efvboxsync }
9496f2d398b49813176939d7a339ae513d5175efvboxsync }
9496f2d398b49813176939d7a339ae513d5175efvboxsync
fe813b3594039ba864493438e78ee0e7132bc445vboxsync LogFlow(("%s: returns %Rrc\n", __FUNCTION__, rc));
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync return rc;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync}
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/**
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * Destruct a driver instance.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync *
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * Most VM resources are freed by the VM. This callback is provided so that any non-VM
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * resources can be freed correctly.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync *
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * @param pDrvIns The driver instance data.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync */
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsyncstatic DECLCALLBACK(void) drvvdDestruct(PPDMDRVINS pDrvIns)
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync{
9496f2d398b49813176939d7a339ae513d5175efvboxsync int rc;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync PVBOXDISK pThis = PDMINS_2_DATA(pDrvIns, PVBOXDISK);
9496f2d398b49813176939d7a339ae513d5175efvboxsync LogFlow(("%s:\n", __FUNCTION__));
05d0c18daabd17b1b434b3684ae642fbc8313ef2vboxsync
d80c85a1bc7317da7d0cd1254fae6a20db039c8cvboxsync drvvdFreeImages(pThis);
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync if (pThis->pCache)
05d0c18daabd17b1b434b3684ae642fbc8313ef2vboxsync {
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync rc = RTCacheDestroy(pThis->pCache);
05d0c18daabd17b1b434b3684ae642fbc8313ef2vboxsync AssertRC(rc);
05d0c18daabd17b1b434b3684ae642fbc8313ef2vboxsync }
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync}
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/**
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * When the VM has been suspended we'll change the image mode to read-only
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * so that main and others can read the VDIs. This is important when
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * saving state and so forth.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync *
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * @param pDrvIns The driver instance data.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync */
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsyncstatic DECLCALLBACK(void) drvvdSuspend(PPDMDRVINS pDrvIns)
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync{
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync LogFlow(("%s:\n", __FUNCTION__));
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync PVBOXDISK pThis = PDMINS_2_DATA(pDrvIns, PVBOXDISK);
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync if (!VDIsReadOnly(pThis->pDisk))
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync {
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync unsigned uOpenFlags;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync int rc = VDGetOpenFlags(pThis->pDisk, VD_LAST_IMAGE, &uOpenFlags);
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync AssertRC(rc);
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync uOpenFlags |= VD_OPEN_FLAGS_READONLY;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync rc = VDSetOpenFlags(pThis->pDisk, VD_LAST_IMAGE, uOpenFlags);
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync AssertRC(rc);
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->fTempReadOnly = true;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync }
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync}
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/**
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * Before the VM resumes we'll have to undo the read-only mode change
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync * done in drvvdSuspend.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync *
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * @param pDrvIns The driver instance data.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync */
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsyncstatic DECLCALLBACK(void) drvvdResume(PPDMDRVINS pDrvIns)
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync{
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync LogFlow(("%s:\n", __FUNCTION__));
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync PVBOXDISK pThis = PDMINS_2_DATA(pDrvIns, PVBOXDISK);
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync if (pThis->fTempReadOnly)
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync {
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync unsigned uOpenFlags;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync int rc = VDGetOpenFlags(pThis->pDisk, VD_LAST_IMAGE, &uOpenFlags);
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync AssertRC(rc);
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync uOpenFlags &= ~VD_OPEN_FLAGS_READONLY;
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync rc = VDSetOpenFlags(pThis->pDisk, VD_LAST_IMAGE, uOpenFlags);
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync AssertRC(rc);
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync pThis->fTempReadOnly = false;
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync }
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync}
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
9496f2d398b49813176939d7a339ae513d5175efvboxsyncstatic DECLCALLBACK(void) drvvdPowerOff(PPDMDRVINS pDrvIns)
9496f2d398b49813176939d7a339ae513d5175efvboxsync{
9496f2d398b49813176939d7a339ae513d5175efvboxsync LogFlow(("%s:\n", __FUNCTION__));
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync PVBOXDISK pThis = PDMINS_2_DATA(pDrvIns, PVBOXDISK);
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
b7a5b3f9f9ecce32ddacf8404c625ce0451bbdc1vboxsync /*
9496f2d398b49813176939d7a339ae513d5175efvboxsync * We must close the disk here to ensure that
9496f2d398b49813176939d7a339ae513d5175efvboxsync * the backend closes all files before the
9496f2d398b49813176939d7a339ae513d5175efvboxsync * async transport driver is destructed.
9496f2d398b49813176939d7a339ae513d5175efvboxsync */
548ca31b6b47c36bacce49bed3339cb8075b9681vboxsync int rc = VDCloseAll(pThis->pDisk);
9496f2d398b49813176939d7a339ae513d5175efvboxsync AssertRC(rc);
9496f2d398b49813176939d7a339ae513d5175efvboxsync}
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync/**
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync * VBox disk container media driver registration record.
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsyncconst PDMDRVREG g_DrvVD =
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync{
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /* u32Version */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync PDM_DRVREG_VERSION,
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /* szDriverName */
09127e6ed46502ff8a6a521713ee8ace53667683vboxsync "VD",
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /* pszDescription */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync "Generic VBox disk media driver.",
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /* fFlags */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT,
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /* fClass. */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync PDM_DRVREG_CLASS_MEDIA,
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /* cMaxInstances */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync ~0,
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /* cbInstance */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync sizeof(VBOXDISK),
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /* pfnConstruct */
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync drvvdConstruct,
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /* pfnDestruct */
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync drvvdDestruct,
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /* pfnIOCtl */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync NULL,
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /* pfnPowerOn */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync NULL,
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /* pfnReset */
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync NULL,
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /* pfnSuspend */
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync drvvdSuspend,
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /* pfnResume */
8083a259c13e6e26e56ca2582edbad4a8cfac25avboxsync drvvdResume,
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync /* pfnDetach */
9496f2d398b49813176939d7a339ae513d5175efvboxsync NULL,
9496f2d398b49813176939d7a339ae513d5175efvboxsync /* pfnPowerOff */
9496f2d398b49813176939d7a339ae513d5175efvboxsync drvvdPowerOff
a0240ff4f7663045c848fdbc192ea3d4d9f70a11vboxsync};