diff options
Diffstat (limited to 'src/VBox/HostDrivers/Support/SUPDrvInternal.h')
| -rw-r--r-- | src/VBox/HostDrivers/Support/SUPDrvInternal.h | 56 |
1 files changed, 41 insertions, 15 deletions
diff --git a/src/VBox/HostDrivers/Support/SUPDrvInternal.h b/src/VBox/HostDrivers/Support/SUPDrvInternal.h index bc914982..cca6c30a 100644 --- a/src/VBox/HostDrivers/Support/SUPDrvInternal.h +++ b/src/VBox/HostDrivers/Support/SUPDrvInternal.h @@ -1,10 +1,10 @@ -/* $Revision: 80003 $ */ +/* $Id: SUPDrvInternal.h $ */ /** @file * VirtualBox Support Driver - Internal header. */ /* - * Copyright (C) 2006-2007 Oracle Corporation + * Copyright (C) 2006-2013 Oracle Corporation * * This file is part of VirtualBox Open Source Edition (OSE), as * available from http://www.virtualbox.org. This file is free software; @@ -199,6 +199,16 @@ ( VALID_PTR(pSession) \ && pSession->u32Cookie == BIRD_INV) +/** + * Validates a device extension pointer. + * + * @returns true/false accordingly. + * @param pDevExt The device extension. + */ +#define SUP_IS_DEVEXT_VALID(pDevExt) \ + ( VALID_PTR(pDevExt)\ + && pDevExt->u32Cookie == BIRD) + /******************************************************************************* * Structures and Typedefs * @@ -378,9 +388,9 @@ typedef struct SUPDRVOBJ } SUPDRVOBJ, *PSUPDRVOBJ; /** Magic number for SUPDRVOBJ::u32Magic. (Dame Agatha Mary Clarissa Christie). */ -#define SUPDRVOBJ_MAGIC 0x18900915 +#define SUPDRVOBJ_MAGIC UINT32_C(0x18900915) /** Dead number magic for SUPDRVOBJ::u32Magic. */ -#define SUPDRVOBJ_MAGIC_DEAD 0x19760112 +#define SUPDRVOBJ_MAGIC_DEAD UINT32_C(0x19760112) /** * The per-session object usage record. @@ -406,11 +416,15 @@ typedef struct SUPDRVSESSION PSUPDRVDEVEXT pDevExt; /** Session Cookie. */ uint32_t u32Cookie; + /** Set if is an unrestricted session, clear if restricted. */ + bool fUnrestricted; + /* Reference counter. */ + uint32_t volatile cRefs; /** The VM associated with the session. */ PVM pVM; /** Handle table for IPRT semaphore wrapper APIs. - * Programmable from R0 and R3. */ + * This takes care of its own locking in an IRQ safe manner. */ RTHANDLETABLE hHandleTable; /** Load usage records. (protected by SUPDRVDEVEXT::mtxLdr) */ PSUPDRVLDRUSAGE volatile pLdrUsage; @@ -476,7 +490,15 @@ typedef struct SUPDRVSESSION */ typedef struct SUPDRVDEVEXT { - /** Spinlock to serialize the initialization, usage counting and objects. */ + /** Global cookie. */ + uint32_t u32Cookie; + /** The actual size of SUPDRVSESSION. (SUPDRV_AGNOSTIC) */ + uint32_t cbSession; + + /** Spinlock to serialize the initialization, usage counting and objects. + * This is IRQ safe because we want to be able signal semaphores from the + * special HM context (and later maybe interrupt handlers), so we must be able + * to reference and dereference handles when IRQs are disabled. */ RTSPINLOCK Spinlock; /** List of registered objects. Protected by the spinlock. */ @@ -484,11 +506,6 @@ typedef struct SUPDRVDEVEXT /** List of free object usage records. */ PSUPDRVUSAGE volatile pUsageFree; - /** Global cookie. */ - uint32_t u32Cookie; - /** The actual size of SUPDRVSESSION. (SUPDRV_AGNOSTIC) */ - uint32_t cbSession; - /** Loader mutex. * This protects pvVMMR0, pvVMMR0Entry, pImages and SUPDRVSESSION::pLdrUsage. */ #ifdef SUPDRV_USE_MUTEX_FOR_LDR @@ -529,7 +546,9 @@ typedef struct SUPDRVDEVEXT #else RTSEMFASTMUTEX mtxGip; #endif - /** GIP spinlock protecting GIP members during Mp events. */ + /** GIP spinlock protecting GIP members during Mp events. + * This is IRQ safe since be may get MP callbacks in contexts where IRQs are + * disabled (on some platforms). */ RTSPINLOCK hGipSpinlock; /** Pointer to the Global Info Page (GIP). */ PSUPGLOBALINFOPAGE pGip; @@ -600,6 +619,8 @@ void VBOXCALL supdrvOSObjInitCreator(PSUPDRVOBJ pObj, PSUPDRVSESSION pSession) bool VBOXCALL supdrvOSObjCanAccess(PSUPDRVOBJ pObj, PSUPDRVSESSION pSession, const char *pszObjName, int *prc); bool VBOXCALL supdrvOSGetForcedAsyncTscMode(PSUPDRVDEVEXT pDevExt); int VBOXCALL supdrvOSEnableVTx(bool fEnabled); +bool VBOXCALL supdrvOSSuspendVTxOnCpu(void); +void VBOXCALL supdrvOSResumeVTxOnCpu(bool fSuspended); /** * Try open the image using the native loader. @@ -663,6 +684,11 @@ int VBOXCALL supdrvOSLdrLoad(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage, c void VBOXCALL supdrvOSLdrUnload(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage); +#if defined(RT_OS_DARWIN) +int VBOXCALL supdrvDarwinResumeSuspendedKbds(void); +#endif + + /******************************************************************************* * Shared Functions * *******************************************************************************/ @@ -672,9 +698,9 @@ int VBOXCALL supdrvIOCtlFast(uintptr_t uIOCtl, VMCPUID idCpu, PSUPDRVDEVEXT p int VBOXCALL supdrvIDC(uintptr_t uIOCtl, PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPDRVIDCREQHDR pReqHdr); int VBOXCALL supdrvInitDevExt(PSUPDRVDEVEXT pDevExt, size_t cbSession); void VBOXCALL supdrvDeleteDevExt(PSUPDRVDEVEXT pDevExt); -int VBOXCALL supdrvCreateSession(PSUPDRVDEVEXT pDevExt, bool fUser, PSUPDRVSESSION *ppSession); -void VBOXCALL supdrvCloseSession(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession); -void VBOXCALL supdrvCleanupSession(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession); +int VBOXCALL supdrvCreateSession(PSUPDRVDEVEXT pDevExt, bool fUser, bool fUnrestricted, PSUPDRVSESSION *ppSession); +uint32_t VBOXCALL supdrvSessionRetain(PSUPDRVSESSION pSession); +uint32_t VBOXCALL supdrvSessionRelease(PSUPDRVSESSION pSession); int VBOXCALL supdrvTracerInit(PSUPDRVDEVEXT pDevExt); void VBOXCALL supdrvTracerTerm(PSUPDRVDEVEXT pDevExt); |