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| Number | Title | Issue Date |
| 8037227 | System and method for virtualizing processor and interrupt priorities Dispatching of interrupts to a processor is conditionally suppressed, that is, only if an old priority value and a new priority value are either both less than or both greater than a maximum pending priority value. This conditional avoidance of dispatching is prefer... | 10/11/2011 |
| 8028071 | TCP/IP offload engine virtualization system and methods A virtual computer system enabling dynamic, aggregated use of multiple TCP/IP offload engines (TOEs) by the set of guest computer systems hosted on the virtual computer system. Each of the guest computer systems includes an offload selection switch and the associate... | 09/27/2011 |
| 8024506 | Maintaining address translations during the software-based processing of instructions The invention is used in a virtual machine monitor for a multiprocessing system that includes a virtual memory system. During a software-based processing of a guest instruction, including translating or interpreting a guest instruction, mappings between virtual addr... | 09/20/2011 |
| 7971015 | Generating and using checkpoints in a virtual computer system To generate a checkpoint for a virtual machine (VM), first, while the VM is still running, a copy-on-write (COW) disk file is created pointing to a parent disk file that the VM is using. Next, the VM is stopped, the VM' s memory is marked COW, the device state of th... | 06/28/2011 |
| 7934020 | Managing network data transfers in a virtual computer system A virtual computer system, including one or more virtual machines (VMs), is connected to a computer network by multiple network interface cards (NICs). The VMs are supported by a kernel, which includes a resource manager for allocating system resources among the VMs... | 04/26/2011 |
| 7908646 | Virtualization system for computers having multiple protection mechanisms In a virtual computer system, the invention virtualizes a primary protection mechanism, which restricts memory accesses based on the type of access attempted and a current hardware privilege level, using a secondary protection mechanism, which is independent of the ... | 03/15/2011 |
| 7886127 | Methods for accessing multiple page tables in a computer system A virtual memory system implementing the invention provides concurrent access to translations for virtual addresses from multiple address spaces. One embodiment of the invention is implemented in a virtual computer system, in which a virtual machine monitor supports... | 02/08/2011 |
| 7783838 | Maintaining coherency of derived data in a computer system A computer system has secondary data that is derived from primary data, such as entries in a TLB being derived from entries in a page table. When an actor changes the primary data, a producer indicates the change in a set data structure, such as a data array, in mem... | 08/24/2010 |
| 7783779 | Storage multipath management in a virtual computer system A virtual computer system, including one or more virtual machines (VMs), is connected to a redundant data storage system having multiple paths for routing data between the computer system and the data storage system. The VMs are supported by a kernel, which includes... | 08/24/2010 |
| 7590982 | System and method for virtualizing processor and interrupt priorities Dispatching of interrupts to a processor is conditionally suppressed, that is, only if an old priority value and a new priority value are either both less than or both greater than a maximum pending priority value. This conditional avoidance of dispatching is prefer... | 09/15/2009 |
| 7529897 | Generating and using checkpoints in a virtual computer system To generate a checkpoint for a virtual machine (VM), first, while the VM is still running, a copy-on-write (COW) disk file is created pointing to a parent disk file that the VM is using. Next, the VM is stopped, the VM's memory is marked COW, the device state of the... | 05/05/2009 |
| 7506122 | Restricting memory access to protect data when sharing a common address space A first software entity occupies a portion of a linear address space of a second software entity and prevents the second software entity from accessing the memory of the first software entity. For example, in one embodiment of the invention, the first software entit... | 03/17/2009 |
| 7490216 | Methods for accessing multiple page tables in a computer system A virtual memory system implementing the invention provides concurrent access to translations for virtual addresses from multiple address spaces. One embodiment of the invention is implemented in a virtual computer system, in which a virtual machine monitor supports... | 02/10/2009 |
| 7487313 | Restricting memory access to protect data when sharing a common address space A first software entity occupies a portion of a linear address space of a second software entity and prevents the second software entity from accessing the memory of the first software entity. For example, in one embodiment of the invention, the first software entit... | 02/03/2009 |
| 7487314 | Restricting memory access to protect data when sharing a common address space A first software entity occupies a portion of a linear address space of a second software entity and prevents the second software entity from accessing the memory of the first software entity. For example, in one embodiment of the invention, the first software entit... | 02/03/2009 |
| 7478180 | Virtualizing a communications channel in which blocks of data are divided into multiple sub-blocks for conveyance An interface for a communications channel, in which blocks of data are divided into multiple sub-blocks for conveyance, such as a USB (Universal Serial Bus) interface, is virtualized. One or more host drivers may provide an interface with a physical device that supp... | 01/13/2009 |
| 7478388 | Switching between multiple software entities using different operating modes of a processor in a computer system A processor has multiple operating modes, such as the long/compatibility mode, the long/64-bit mode and the legacy modes of the x86-64 microprocessor. Different software entities execute in different ones of these operating modes. A switching routine is implemented ... | 01/13/2009 |
| 7478173 | Method and system for sharing a network connection in a virtual computer system A virtual computer system including multiple virtual machines (VMs) is implemented in a single physical computer system. The multiple VMs have their own layer 2 and layer 3 addresses, but they share a common network connection for which only a single layer 2 address... | 01/13/2009 |
| 7475002 | Method and apparatus for emulating multiple virtual timers in a virtual computer system when the virtual timers fall behind the real time of a physical computer system A virtual computer system includes multiple timer emulators for emulating multiple virtual timers in a virtual machine (VM). A time coordinator keeps track of an apparent time that is provided to the multiple timer emulators for presentation to the VM through the vi... | 01/06/2009 |
| 7409487 | Virtualization system for computers that use address space indentifiers A virtual computer system including multiple virtual machines (VMs) is implemented in a physical computer system that uses address space identifiers (ASIDs). Each VM includes a virtual translation look-aside buffer (TLB), in which guest software, executing on the VM... | 08/05/2008 |
| 7281102 | Restricting memory access to protect data when sharing a common address space A first software entity occupies a portion of a linear address space of a second software entity and prevents the second software entity from accessing the memory of the first software entity. For example, in one embodiment of the invention, the first software entit... | 10/09/2007 |
| 7277998 | Restricting memory access to protect data when sharing a common address space A first software entity occupies a portion of a linear address space of a second software entity and prevents the second software entity from accessing the memory of the first software entity. For example, in one embodiment of the invention, the first software entit... | 10/02/2007 |
| 7278030 | Virtualization system for computers having multiple protection mechanisms In a virtual computer system, the invention virtualizes a primary protection mechanism, which restricts memory accesses based on the type of access attempted and a current hardware privilege level, using a secondary protection mechanism, which is independent of the ... | 10/02/2007 |
| 7277999 | Restricting memory access to protect data when sharing a common address space A first software entity occupies a portion of a linear address space of a second software entity and prevents the second software entity from accessing the memory of the first software entity. For example, in one embodiment of the invention, the first software entit... | 10/02/2007 |
| 7275136 | Virtualization system for computers with a region-based memory architecture In a computer system with a non-segmented, region-based memory architecture, such as Intel IA-64 systems, two or more sub-systems share a resource, such as a virtual-to-physical address mapping and need to have overlapping regions of the virtual address space for ac... | 09/25/2007 |
| 7269683 | Providing access to a raw data storage unit in a computer system A computer has access to a system-formatted data storage unit (DSU) containing a file system and to a raw DSU. A file within the file system constitutes a raw DSU mapping that facilitates access to the raw DSU. The raw DSU mapping appears to be an ordinary file to a... | 09/11/2007 |
| 7260815 | Method and apparatus for managing registers in a binary translator The invention relates to managing registers during a binary translation mode in a virtual computing system. A set of registers is saved to memory before beginning to execute a series of blocks of translated code, and the contents of the set of registers are restored... | 08/21/2007 |
| 7222221 | Maintaining coherency of derived data in a computer system A computer system has secondary data that is derived from primary data, such as entries in a TLB being derived from entries in a page table. When an actor changes the primary data, a producer indicates the change in a set data structure, such as a data array, in mem... | 05/22/2007 |
| 7155558 | Providing access to a raw data storage unit in a computer system A computer has access to a system-formatted data storage unit (DSU) containing a file system and to a raw DSU. A file within the file system constitutes a raw DSU mapping that facilitates access to the raw DSU. The raw DSU mapping appears to be an ordinary file to a... | 12/26/2006 |
| D532967 | Miniature novelty purse | 12/05/2006 |
| 7111145 | TLB miss fault handler and method for accessing multiple page tables A virtual memory system implementing the invention provides concurrent access to translations for virtual addresses from multiple address spaces. One embodiment of the invention is implemented in a virtual computer system, in which a virtual machine monitor supports... | 09/19/2006 |
| D520741 | Miniature novelty purse | 05/16/2006 |
| D520742 | Miniature novelty purse | 05/16/2006 |
| 6647370 | System and methods for scheduling and tracking events across multiple time zones An electronic Personal Information Manager (PIM) including a calendar/scheduling system with an EarthTime™ module is described. In operation, the system tracks different types of times: "local" time, "home" time, and "remote" time. Home time is the time... | 11/11/2003 |
| 6544295 | Methods for managing preferred internet sites in a computer system having a browser A computer system having a "browse" connected to an on-line service (e.g., Internet) is providing with a "Quick" marks utility, which lets a user easily organize programs, Web sites, and other items in tabs, and start them with a single click. The utility... | 04/08/2003 |
| 5715308 | Apparatus for generating alerts of varying degrees An alerting device generates a variable alert that is varied to continuously or continually indicate the amount of time that has elapsed since the alert began. The alerting device has an alert signal detector, a timing unit, an alert signal generator and ... | 02/03/1998 |
