Referenced Routines
The virtual memory manager exports these routines exported to kernel extensions.
| Services That Manipulate Virtual Memory Objects | |
|---|---|
| vm_att | Selects and allocates a region in the current address space for the specified virtual memory object. |
| vms_create | Creates virtual memory object of the specified type and size limits. |
| vms_delete | Deletes a virtual memory object. |
| vm_det | Unmaps and deallocates the region at a specified address in the current address space. |
| vm_flushp | Flushes the specified range of pages. |
| vm_handle | Constructs a virtual memory handle for mapping a virtual memory object with a specified access level. |
| vm_invalidatep | Releases page frames in the specified range for a non-journaled persistent segment or client segment. |
| vm_ioaccessp | Initiates asynchronous page-in or page-out for the specified range of pages . |
| vms_iowait, vms_iowaitf | Waits for the completion of all page-out operations in the virtual memory object. |
| vm_makep | Makes a page in client storage. |
| vm_move | Moves data between the virtual memory object and buffer specified in the uio structure. |
| vm_mvc | Reads or writes partial pages of files. |
| vm_protectp | Sets the page protection key for a page range. |
| vm_qpages | Returns the number of in-memory page frames associated with the virtual memory object. |
| vm_readp | Initiates asynchronous page-in for the range of pages specified. |
| vm_releasep | Releases page frames and paging space slots for pages in the specified range. |
| vm_segmap | Creates the segments associated with a range of bytes in a file and attaches them to the kernel's address space. |
| vm_setdevid | Modifies the paging-device table entry for a virtual memory object. |
| vm_uiomove | Moves data between the virtual memory object and buffer specified in the uio structure. |
| vm_vmid | Converts a virtual memory handle to a virtual memory object (id). |
| vm_writep | Initiates page-out for a page range in a virtual memory object. |
The following services support address space operations:
| Item | Description |
|---|---|
| vm_cflush | Flushes cache lines for a specified address range. |
| vm_release | Releases page frames and paging space slots for the specified address range. |
| vm_write | Initiates page-out for an address range. |
The following Memory-Pinning kernel services also support address space operations. They are the pin and unpin services.
| Services That Support Cross-Memory Operations |
|---|
| Cross Memory Services are listed in "Memory Kernel Services". |