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Diffstat (limited to 'src/VBox/Additions/common/VBoxGuest/lib/VBoxGuestR0LibInternal.h')
| -rw-r--r-- | src/VBox/Additions/common/VBoxGuest/lib/VBoxGuestR0LibInternal.h | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/src/VBox/Additions/common/VBoxGuest/lib/VBoxGuestR0LibInternal.h b/src/VBox/Additions/common/VBoxGuest/lib/VBoxGuestR0LibInternal.h new file mode 100644 index 00000000..6942a7e5 --- /dev/null +++ b/src/VBox/Additions/common/VBoxGuest/lib/VBoxGuestR0LibInternal.h @@ -0,0 +1,212 @@ +/* $Id: VBoxGuestR0LibInternal.h $ */ +/** @file + * VBoxGuestLibR0 - Internal header. + */ + +/* + * Copyright (C) 2006-2022 Oracle and/or its affiliates. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following + * conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef GA_INCLUDED_SRC_common_VBoxGuest_lib_VBoxGuestR0LibInternal_h +#define GA_INCLUDED_SRC_common_VBoxGuest_lib_VBoxGuestR0LibInternal_h +#ifndef RT_WITHOUT_PRAGMA_ONCE +# pragma once +#endif + +/* + * Define the private IDC handle structure before we include the VBoxGuestLib.h header. + */ +#include <iprt/types.h> +#include <iprt/assert.h> +RT_C_DECLS_BEGIN + +# ifndef VBGL_VBOXGUEST +/** + * The hidden part of VBGLIDCHANDLE. + */ +struct VBGLIDCHANDLEPRIVATE +{ + /** Pointer to the session handle. */ + void *pvSession; +# if defined(RT_OS_WINDOWS) && (defined(IPRT_INCLUDED_nt_ntddk_h) || defined(IPRT_INCLUDED_nt_nt_h)) + /** Pointer to the NT device object. */ + PDEVICE_OBJECT pDeviceObject; + /** Pointer to the NT file object. */ + PFILE_OBJECT pFileObject; +# elif defined(RT_OS_SOLARIS) && defined(_SYS_SUNLDI_H) + /** LDI device handle to keep the device attached. */ + ldi_handle_t hDev; +# endif +}; +/** Indicate that the VBGLIDCHANDLEPRIVATE structure is present. */ +# define VBGLIDCHANDLEPRIVATE_DECLARED 1 +#endif + +#include <VBox/VMMDev.h> +#include <VBox/VBoxGuest.h> +#include <VBox/VBoxGuestLib.h> + +#ifdef VBGLIDCHANDLEPRIVATE_DECLARED +AssertCompile(RT_SIZEOFMEMB(VBGLIDCHANDLE, apvPadding) >= sizeof(struct VBGLIDCHANDLEPRIVATE)); +#endif + + +/* + * Native IDC functions. + */ +int VBOXCALL vbglR0IdcNativeOpen(PVBGLIDCHANDLE pHandle, PVBGLIOCIDCCONNECT pReq); +int VBOXCALL vbglR0IdcNativeClose(PVBGLIDCHANDLE pHandle, PVBGLIOCIDCDISCONNECT pReq); + + +/* + * Deprecated logging macro + */ +#include <VBox/log.h> +#ifdef RT_OS_WINDOWS /** @todo dprintf() -> Log() */ +# if (defined(DEBUG) && !defined(NO_LOGGING)) || defined(LOG_ENABLED) +# define dprintf(a) RTLogBackdoorPrintf a +# else +# define dprintf(a) do {} while (0) +# endif +#else +# define dprintf(a) Log(a) +#endif + +/* + * Lazy bird: OS/2 doesn't currently implement the RTSemMutex API in ring-0, so + * use a fast mutex instead. Unlike Windows, the OS/2 implementation + * doesn't have any nasty side effects on IRQL-like context properties, so the + * fast mutexes on OS/2 are identical to normal mutexes except for the missing + * timeout aspec. Fortunately we don't need timeouts here. + */ +#ifdef RT_OS_OS2 +# define VBGLDATA_USE_FAST_MUTEX +#endif + +struct VBGLPHYSHEAPBLOCK; +typedef struct VBGLPHYSHEAPBLOCK VBGLPHYSHEAPBLOCK; +struct VBGLPHYSHEAPFREEBLOCK; +typedef struct VBGLPHYSHEAPFREEBLOCK VBGLPHYSHEAPFREEBLOCK; +struct VBGLPHYSHEAPCHUNK; +typedef struct VBGLPHYSHEAPCHUNK VBGLPHYSHEAPCHUNK; + +enum VbglLibStatus +{ + VbglStatusNotInitialized = 0, + VbglStatusInitializing, + VbglStatusReady +}; + +/** + * Global VBGL ring-0 data. + * Lives in VBoxGuestR0LibInit.cpp. + */ +typedef struct VBGLDATA +{ + enum VbglLibStatus status; + + RTIOPORT portVMMDev; + + VMMDevMemory *pVMMDevMemory; + + /** Physical memory heap data. + * @{ + */ + RTSEMFASTMUTEX hMtxHeap; + /** Head of the block list (both free and allocated blocks). + * This runs parallel to the chunk list and is sorted by address within each + * chunk. This allows merging with blocks both after and before when + * freeing. */ + VBGLPHYSHEAPBLOCK *pBlockHead; + /** Head of the free list. + * This is not sorted and more on the most recently freed approach. */ + VBGLPHYSHEAPFREEBLOCK *pFreeHead; + /** Number of block of any kind. */ + int32_t cBlocks; + /** Number of free blocks. */ + int32_t cFreeBlocks; + /** Head of the chunk list. */ + VBGLPHYSHEAPCHUNK *pChunkHead; + /** @} */ + + /** + * The host version data. + */ + VMMDevReqHostVersion hostVersion; + + +#ifndef VBGL_VBOXGUEST + /** The IDC handle. This is used for talking to the main driver. */ + VBGLIDCHANDLE IdcHandle; + /** Mutex used to serialize IDC setup. */ +# ifdef VBGLDATA_USE_FAST_MUTEX + RTSEMFASTMUTEX hMtxIdcSetup; +# else + RTSEMMUTEX hMtxIdcSetup; +# endif +#endif +} VBGLDATA; + + +extern VBGLDATA g_vbgldata; + +/** + * Internal macro for checking whether we can pass physical page lists to the + * host. + * + * ASSUMES that vbglR0Enter has been called already. + * + * @param a_fLocked For the windows shared folders workarounds. + * + * @remarks Disabled the PageList feature for locked memory on Windows, + * because a new MDL is created by VBGL to get the page addresses + * and the pages from the MDL are marked as dirty when they should not. + */ +#if defined(RT_OS_WINDOWS) +# define VBGLR0_CAN_USE_PHYS_PAGE_LIST(a_fLocked) \ + ( !(a_fLocked) && (g_vbgldata.hostVersion.features & VMMDEV_HVF_HGCM_PHYS_PAGE_LIST) ) +#else +# define VBGLR0_CAN_USE_PHYS_PAGE_LIST(a_fLocked) \ + ( !!(g_vbgldata.hostVersion.features & VMMDEV_HVF_HGCM_PHYS_PAGE_LIST) ) +#endif + +int vbglR0Enter (void); + +#ifdef VBOX_WITH_HGCM +struct VBGLHGCMHANDLEDATA *vbglR0HGCMHandleAlloc(void); +void vbglR0HGCMHandleFree(struct VBGLHGCMHANDLEDATA *pHandle); +#endif /* VBOX_WITH_HGCM */ + +#ifndef VBGL_VBOXGUEST +/** + * Get the IDC handle to the main VBoxGuest driver. + * @returns VERR_TRY_AGAIN if the main driver has not yet been loaded. + */ +int VBOXCALL vbglR0QueryIdcHandle(PVBGLIDCHANDLE *ppIdcHandle); +#endif + +RT_C_DECLS_END + +#endif /* !GA_INCLUDED_SRC_common_VBoxGuest_lib_VBoxGuestR0LibInternal_h */ + |