Abstract: Techniques for enabling fail-safe operations of storage devices are described. A device may be configured to delete an inode in a failsafe manner. A device may be configured to mark directory entries as not in use and ensure this goes to disk before anything else. A device may be configured to create an inode in a failsafe manner. A device may be configured to allocate and initialize a cluster and ensure this is written to disk before anything else. In this manner, a volume may be in a predictable state upon a failure occurring.

Abstract: This disclosure describes techniques for storing large files to file system volumes. In some examples, this disclosure describes techniques for storing files larger than a maximum file size allowed for File Allocation Table (FAT) file systems to a volume formatted according to a FAT file system. In this manner, the techniques described here may support larger file sizes while being backwards compatible.

Abstract: Embodiments of an invention for virtualization exceptions are disclosed. In one embodiment, a processor includes instruction hardware, control logic, and execution hardware. The instruction hardware is to receive a plurality of instructions, including an instruction to enter a virtual machine. The control logic is to determine, in response to a privileged event occurring within the virtual machine, whether to generate a virtualization exception. The execution hardware is to generate a virtualization exception in response to the control logic determining to generate a virtualization exception.

Abstract: Techniques for enabling fail-safe operations of storage devices are described. A device may be configured to deallocate one or more clusters assigned to an inode by writing an end of chain terminator value into a new last cluster of a file allocation table entry. In one example, a device may update an allocation bitmap subsequent to writing an end of chain terminator value into a new last cluster of a file allocation table entry. In one example, a device may mark remain clusters as free subsequent to writing an end of chain terminator value into a new last cluster of a file allocation table entry. A device may be configured to allocate clusters to an inode by writing file access table entries for newly allocated clusters.

Abstract: This disclosure describes techniques for storing large files to file system volumes. In some examples, this disclosure describes techniques for storing files larger than a maximum file size allowed for File Allocation Table (FAT) file systems to a volume formatted according to a FAT file system. This disclosure describes techniques for handling calls associated with large files. In this manner, the techniques described here may support larger file sizes while being backwards compatible.

Abstract: Techniques for enabling fail-safe operations of storage devices are described. A device may be configured to deallocate one or more clusters assigned to an inode by writing an end of chain terminator value into a new last cluster of a file allocation table entry. In one example, a device may update an allocation bitmap subsequent to writing an end of chain terminator value into a new last cluster of a file allocation table entry. In one example, a device may mark remain clusters as free subsequent to writing an end of chain terminator value into a new last cluster of a file allocation table entry. A device may be configured to allocate clusters to an inode by writing file access table entries for newly allocated clusters.

Abstract: Techniques for recovering lost clusters are described herein. In particular, this disclosure describes techniques for generating an allocation bitmap. The allocation bitmap may be used to recover lost clusters on a mounted volume.

Abstract: This disclosure describes techniques performing data object renaming operations. This disclosure describes techniques for performing data object renaming operations in a manner that may reduce file system corruption and data loss. The techniques described herein may include selectively journaling particular types of renaming operations. Selectively journaling particular types of renaming operations may mitigate potential data loss and file system corruption.

Abstract: Instructions and logic provide advanced paging capabilities for secure enclave page caches. Embodiments include multiple hardware threads or processing cores, a cache to store secure data for a shared page address allocated to a secure enclave accessible by the hardware threads. A decode stage decodes a first instruction specifying said shared page address as an operand, and execution units mark an entry corresponding to an enclave page cache mapping for the shared page address to block creation of a new translation for either of said first or second hardware threads to access the shared page. A second instruction is decoded for execution, the second instruction specifying said secure enclave as an operand, and execution units record hardware threads currently accessing secure data in the enclave page cache corresponding to the secure enclave, and decrement the recorded number of hardware threads when any of the hardware threads exits the secure enclave.

Abstract: Techniques for enabling fail-safe operations of storage devices are described. A device may be configured to delete an inode in a failsafe manner. A device may be configured to mark directory entries as not in use and ensure this goes to disk before anything else. A device may be configured to create an inode in a failsafe manner. A device may be configured to allocate and initialize a cluster and ensure this is written to disk before anything else. In this manner, a volume may be in a predictable state upon a failure occurring.

Abstract: A device may be configured to perform techniques that efficiently write back data to a storage device. A file system driver may be configured to delay write backs. A file system driver may be configured to extend a range of pages that are written back to a storage device.

Abstract: Embodiments of an invention for virtualization exceptions are disclosed. In one embodiment, a processor includes instruction hardware, control logic, and execution hardware. The instruction hardware is to receive a plurality of instructions, including an instruction to enter a virtual machine. The control logic is to determine, in response to a privileged event occurring within the virtual machine, whether to generate a virtualization exception. The execution hardware is to generate a virtualization exception in response to the control logic determining to generate a virtualization exception.

Abstract: A device may be configured to perform techniques that enable may be used to allocate allocation units within a file system volume to data objects in a parallel manner. A file system driver may be configured to perform allocation operations based on an allocation mapping structure being logically partitioned into one or more of windows. Each window may be able to be lock independently during allocation operations. Window metadata may be used to evaluate windows of an allocation mapping structure.

Abstract: Techniques for enabling fail-safe operations of storage devices are described. A device may be configured to delete an inode in a failsafe manner. A device may be configured to mark directory entries as not in use and ensure this goes to disk before anything else. A device may be configured to create an inode in a failsafe manner. A device may be configured to allocate and initialize a cluster and ensure this is written to disk before anything else. In this manner, a volume may be in a predictable state upon a failure occurring.

Abstract: Eyewear is disclosed that can have multiple ventilation states providing different amounts of ventilation through the eyewear. The eyewear can include a lens and a frame. In some embodiments, the lens can be movable with respect to the frame to provide the multiple ventilation states. In some embodiments, the eyewear can include a gasket that removably attaches to the frame. In some embodiments, the gasket can be movable with respect to the frame to provide the multiple ventilation states.

Abstract: Embodiments of an invention for virtualization exceptions are disclosed. In one embodiment, a processor includes instruction hardware, control logic, and execution hardware. The instruction hardware is to receive a plurality of instructions, including an instruction to enter a virtual machine. The control logic is to determine, in response to a privileged event occurring within the virtual machine, whether to generate a virtualization exception. The execution hardware is to generate a virtualization exception in response to the control logic determining to generate a virtualization exception.

Abstract: Techniques for recovering lost clusters are described herein. In particular, this disclosure describes techniques for generating an allocation bitmap. The allocation bitmap may be used to recover lost clusters on a mounted volume.

Abstract: This disclosure describes techniques for storing large files to file system volumes. In some examples, this disclosure describes techniques for storing files larger than a maximum file size allowed for File Allocation Table (FAT) file systems to a volume formatted according to a FAT file system. In this manner, the techniques described here may support larger file sizes while being backwards compatible.

Abstract: This disclosure describes techniques for storing large files to file system volumes. In some examples, this disclosure describes techniques for storing files larger than a maximum file size allowed for File Allocation Table (FAT) file systems to a volume formatted according to a FAT file system. This disclosure describes techniques for handling calls associated with large files. In this manner, the techniques described here may support larger file sizes while being backwards compatible.