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| -rw-r--r-- | include/VBox/vmm/pdmsrv.h | 338 |
1 files changed, 338 insertions, 0 deletions
diff --git a/include/VBox/vmm/pdmsrv.h b/include/VBox/vmm/pdmsrv.h new file mode 100644 index 00000000..84d26b59 --- /dev/null +++ b/include/VBox/vmm/pdmsrv.h @@ -0,0 +1,338 @@ +/** @file + * PDM - Pluggable Device Manager, VM Services. + * + * @todo This has not been implemented, consider dropping the concept. + */ + +/* + * Copyright (C) 2006-2020 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. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL) only, as it comes in the "COPYING.CDDL" file of the + * VirtualBox OSE distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + */ + +#ifndef VBOX_INCLUDED_vmm_pdmsrv_h +#define VBOX_INCLUDED_vmm_pdmsrv_h +#ifndef RT_WITHOUT_PRAGMA_ONCE +# pragma once +#endif + +#include <VBox/vmm/pdmifs.h> +#include <VBox/vmm/ssm.h> +#include <VBox/vmm/cfgm.h> + +RT_C_DECLS_BEGIN + +/** @defgroup grp_pdm_services The PDM Services API + * @ingroup grp_pdm + * @{ + */ + +/** + * Construct a service instance for a VM. + * + * @returns VBox status. + * @param pSrvIns The service instance data. + * If the registration structure is needed, pSrvIns->pReg points to it. + * @param pCfg Configuration node handle for the service. Use this to obtain the configuration + * of the driver instance. It's also found in pSrvIns->pCfg, but since it's primary + * usage is expected in this function it is passed as a parameter. + */ +typedef DECLCALLBACK(int) FNPDMSRVCONSTRUCT(PPDMSRVINS pSrvIns, PCFGMNODE pCfg); +/** Pointer to a FNPDMSRVCONSTRUCT() function. */ +typedef FNPDMSRVCONSTRUCT *PFNPDMSRVCONSTRUCT; + +/** + * Destruct a driver instance. + * + * Most VM resources are freed by the VM. This callback is provided so that any non-VM + * resources can be freed correctly. + * + * @param pSrvIns The service instance data. + */ +typedef DECLCALLBACK(void) FNPDMSRVDESTRUCT(PPDMSRVINS pSrvIns); +/** Pointer to a FNPDMSRVDESTRUCT() function. */ +typedef FNPDMSRVDESTRUCT *PFNPDMSRVDESTRUCT; + +/** + * Power On notification. + * + * @param pSrvIns The service instance data. + */ +typedef DECLCALLBACK(void) FNPDMSRVPOWERON(PPDMSRVINS pSrvIns); +/** Pointer to a FNPDMSRVPOWERON() function. */ +typedef FNPDMSRVPOWERON *PFNPDMSRVPOWERON; + +/** + * Reset notification. + * + * @returns VBox status. + * @param pSrvIns The service instance data. + */ +typedef DECLCALLBACK(void) FNPDMSRVRESET(PPDMSRVINS pSrvIns); +/** Pointer to a FNPDMSRVRESET() function. */ +typedef FNPDMSRVRESET *PFNPDMSRVRESET; + +/** + * Suspend notification. + * + * @returns VBox status. + * @param pSrvIns The service instance data. + */ +typedef DECLCALLBACK(void) FNPDMSRVSUSPEND(PPDMSRVINS pSrvIns); +/** Pointer to a FNPDMSRVSUSPEND() function. */ +typedef FNPDMSRVSUSPEND *PFNPDMSRVSUSPEND; + +/** + * Resume notification. + * + * @returns VBox status. + * @param pSrvIns The service instance data. + */ +typedef DECLCALLBACK(void) FNPDMSRVRESUME(PPDMSRVINS pSrvIns); +/** Pointer to a FNPDMSRVRESUME() function. */ +typedef FNPDMSRVRESUME *PFNPDMSRVRESUME; + +/** + * Power Off notification. + * + * @param pSrvIns The service instance data. + */ +typedef DECLCALLBACK(void) FNPDMSRVPOWEROFF(PPDMSRVINS pSrvIns); +/** Pointer to a FNPDMSRVPOWEROFF() function. */ +typedef FNPDMSRVPOWEROFF *PFNPDMSRVPOWEROFF; + +/** + * Detach notification. + * + * This is called when a driver or device is detached from the service + * + * @param pSrvIns The service instance data. + */ +typedef DECLCALLBACK(void) FNPDMSRVDETACH(PPDMSRVINS pSrvIns, PPDMDEVINS pDevIns, PPDMDRVINS pDrvIns); +/** Pointer to a FNPDMSRVDETACH() function. */ +typedef FNPDMSRVDETACH *PFNPDMSRVDETACH; + + + +/** PDM Service Registration Structure, + * This structure is used when registering a driver from + * VBoxServicesRegister() (HC Ring-3). PDM will continue use till + * the VM is terminated. + */ +typedef struct PDMSRVREG +{ + /** Structure version. PDM_SRVREG_VERSION defines the current version. */ + uint32_t u32Version; + /** Driver name. */ + char szServiceName[32]; + /** The description of the driver. The UTF-8 string pointed to shall, like this structure, + * remain unchanged from registration till VM destruction. */ + const char *pszDescription; + + /** Flags, combination of the PDM_SRVREG_FLAGS_* \#defines. */ + RTUINT fFlags; + /** Size of the instance data. */ + RTUINT cbInstance; + + /** Construct instance - required. */ + PFNPDMSRVCONSTRUCT pfnConstruct; + /** Destruct instance - optional. */ + PFNPDMSRVDESTRUCT pfnDestruct; + /** Power on notification - optional. */ + PFNPDMSRVPOWERON pfnPowerOn; + /** Reset notification - optional. */ + PFNPDMSRVRESET pfnReset; + /** Suspend notification - optional. */ + PFNPDMSRVSUSPEND pfnSuspend; + /** Resume notification - optional. */ + PFNPDMSRVRESUME pfnResume; + /** Detach notification - optional. */ + PFNPDMSRVDETACH pfnDetach; + /** Power off notification - optional. */ + PFNPDMSRVPOWEROFF pfnPowerOff; + +} PDMSRVREG; +/** Pointer to a PDM Driver Structure. */ +typedef PDMSRVREG *PPDMSRVREG; +/** Const pointer to a PDM Driver Structure. */ +typedef PDMSRVREG const *PCPDMSRVREG; + + + +/** + * PDM Service API. + */ +typedef struct PDMSRVHLP +{ + /** Structure version. PDM_SRVHLP_VERSION defines the current version. */ + uint32_t u32Version; + + /** + * Assert that the current thread is the emulation thread. + * + * @returns True if correct. + * @returns False if wrong. + * @param pSrvIns Service instance. + * @param pszFile Filename of the assertion location. + * @param iLine Linenumber of the assertion location. + * @param pszFunction Function of the assertion location. + */ + DECLR3CALLBACKMEMBER(bool, pfnAssertEMT,(PPDMSRVINS pSrvIns, const char *pszFile, unsigned iLine, const char *pszFunction)); + + /** + * Assert that the current thread is NOT the emulation thread. + * + * @returns True if correct. + * @returns False if wrong. + * @param pSrvIns Service instance. + * @param pszFile Filename of the assertion location. + * @param iLine Linenumber of the assertion location. + * @param pszFunction Function of the assertion location. + */ + DECLR3CALLBACKMEMBER(bool, pfnAssertOther,(PPDMSRVINS pSrvIns, const char *pszFile, unsigned iLine, const char *pszFunction)); + + /** + * Creates a timer. + * + * @returns VBox status. + * @param pVM The cross context VM structure. + * @param pSrvIns Service instance. + * @param enmClock The clock to use on this timer. + * @param pfnCallback Callback function. + * @param pszDesc Pointer to description string which must stay around + * until the timer is fully destroyed (i.e. a bit after TMTimerDestroy()). + * @param ppTimer Where to store the timer on success. + */ + DECLR3CALLBACKMEMBER(int, pfnTMTimerCreate,(PPDMSRVINS pSrvIns, TMCLOCK enmClock, PFNTMTIMERDEV pfnCallback, const char *pszDesc, PPTMTIMERR3 ppTimer)); + + /** + * Query the virtual timer frequency. + * + * @returns Frequency in Hz. + * @param pSrvIns Service instance. + * @thread Any thread. + */ + DECLR3CALLBACKMEMBER(uint64_t, pfnTMGetVirtualFreq,(PPDMSRVINS pSrvIns)); + + /** + * Query the virtual time. + * + * @returns The current virtual time. + * @param pSrvIns Service instance. + * @thread Any thread. + */ + DECLR3CALLBACKMEMBER(uint64_t, pfnTMGetVirtualTime,(PPDMSRVINS pSrvIns)); + +} PDMSRVHLP; +/** Pointer PDM Service API. */ +typedef PDMSRVHLP *PPDMSRVHLP; +/** Pointer const PDM Service API. */ +typedef const PDMSRVHLP *PCPDMSRVHLP; + +/** Current SRVHLP version number. */ +#define PDM_SRVHLP_VERSION PDM_VERSION_MAKE(0xdfff, 1, 0) + + +/** + * PDM Service Instance. + */ +typedef struct PDMSRVINS +{ + /** Structure version. PDM_SRVINS_VERSION defines the current version. */ + uint32_t u32Version; + + /** Internal data. */ + union + { +#ifdef PDMSRVINSINT_DECLARED + PDMSRVINSINT s; +#endif + uint8_t padding[HC_ARCH_BITS == 32 ? 32 : 32]; + } Internal; + + /** Pointer the PDM Service API. */ + R3PTRTYPE(PCPDMSRVHLP) pHlp; + /** Pointer to driver registration structure. */ + R3PTRTYPE(PCPDMSRVREG) pReg; + /** Configuration handle. */ + R3PTRTYPE(PCFGMNODE) pCfg; + /** The base interface of the service. + * The service constructor initializes this. */ + PDMIBASE IBase; + /* padding to make achInstanceData aligned at 16 byte boundary. */ + uint32_t au32Padding[2]; + /** Pointer to driver instance data. */ + R3PTRTYPE(void *) pvInstanceData; + /** Driver instance data. The size of this area is defined + * in the PDMSRVREG::cbInstanceData field. */ + char achInstanceData[4]; +} PDMSRVINS; + +/** Current PDMSRVREG version number. */ +#define PDM_SRVINS_VERSION PDM_VERSION_MAKE(0xdffe, 1, 0) + +/** Converts a pointer to the PDMSRVINS::IBase to a pointer to PDMSRVINS. */ +#define PDMIBASE_2_PDMSRV(pInterface) ( (PPDMSRVINS)((char *)(pInterface) - RT_UOFFSETOF(PDMSRVINS, IBase)) ) + + + +/** Pointer to callbacks provided to the VBoxServiceRegister() call. */ +typedef struct PDMSRVREGCB *PPDMSRVREGCB; + +/** + * Callbacks for VBoxServiceRegister(). + */ +typedef struct PDMSRVREGCB +{ + /** Interface version. + * This is set to PDM_SRVREG_CB_VERSION. */ + uint32_t u32Version; + + /** + * Registers a service with the current VM instance. + * + * @returns VBox status code. + * @param pCallbacks Pointer to the callback table. + * @param pSrvReg Pointer to the device registration record. + * This data must be permanent and readonly. + */ + DECLR3CALLBACKMEMBER(int, pfnRegister,(PPDMSRVREGCB pCallbacks, PCPDMSRVREG pSrvReg)); +} PDMSRVREGCB; + +/** Current version of the PDMSRVREGCB structure. */ +#define PDM_SRVREG_CB_VERSION PDM_VERSION_MAKE(0xdffd, 1, 0) + + +/** + * The VBoxServicesRegister callback function. + * + * PDM will invoke this function after loading a device module and letting + * the module decide which devices to register and how to handle conflicts. + * + * @returns VBox status code. + * @param pCallbacks Pointer to the callback table. + * @param u32Version VBox version number. + */ +typedef DECLCALLBACK(int) FNPDMVBOXSERVICESREGISTER(PPDMSRVREGCB pCallbacks, uint32_t u32Version); + + +/** @} */ + +RT_C_DECLS_END + +#endif /* !VBOX_INCLUDED_vmm_pdmsrv_h */ |