US 8,286,161 B2Granted

Apparatus, method, and computer program for setting and updating a relationship between a logical processor and a physical processor

AssigneeSony Corporation

InventorsAtsushi Togawa, Kenichi Murata

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Abstract

An information processing apparatus includes a control operating system executing a process for allocating a plurality of logical processors to a physical processor in a time division manner, and a guest operating system for which a logical partition as an application entity of the logical processor is set. The control operating system sets and updates, as address conversion tables for determining an allocation relationship between the logical processor and the physical processor, two address conversion tables of a first conversion table that sets an allocation relationship between a logical partition address space and a physical address space and a second conversion table that sets an allocation relationship between a virtual address space in the guest operating system and the physical address space.

Claims17

Dependent claims

An information processing apparatus for controlling an allocation relationship between a physical processor having a physical address and a logical processor comprising:

a control operating system executing a process for allocating a plurality of logical processors to a physical processor in a time division manner;
and
a guest operating system for which a logical partition, having a logical partition address and one or more virtual address spaces, is set as an application entity of the logical processor,
wherein the control operating system sets and updates, in computer memory, the allocation relationship between the logical processor and the physical processor, by setting and updating two address conversion tables, a first conversion table with record comprising an index for the logical partition address and the physical address of the physical processor and a second conversion table with record comprising an index for one of the one or more virtual address spaces in the guest operating system and the physical address of the physical processor, so that that a physical address acquired from an index of the first conversion table corresponding to the logical processor and a physical address acquired from an index of the second conversion table corresponding to the logical processor are the same address corresponding to the same physical processor.

1 more element

A computer-implemented process control method for processing data with a plurality of logical processors allocated to a physical processor having a physical address in a time division manner, the method comprising:

performing, by a processor, the operations of:
setting a logical partition on a guest operating system as an application entity of the logical processor, the logical partition having a logical partition address and one or more virtual address spaces;
and
updating two address conversion tables, a first conversion table with record comprising an index for the logical partition address and the physical address of the physical processor and a second conversion table with record comprising an index for one of the one or more virtual address spaces in the guest operating system to the physical address of the physical processor, so that that a physical address acquired from an index of the first conversion table corresponding to the logical processor and a physical address acquired from an index of the second conversion table corresponding to the logical processor are the same address corresponding to the same physical processor.

1 more element

A computer program product, comprising a non-transitory computer usable medium having a computer readable program code embodied therein, the computer readable program code adapted for processing data with a plurality of logical processors allocated to a physical processor having a physical address in a time division manner comprising steps of:

setting a logical partition on a guest operating system as an application entity of the logical processor, the logical partition having a logical partition address and one or more virtual address spaces;
and
updating two address conversion tables, a first conversion table with record comprising an index for the logical partition address and the physical address of the physical processor and a second conversion table with record comprising an index for one of the one or more virtual address spaces in the guest operating system and the physical address of the physical processor, so that that a physical address acquired from an index of the first conversion table corresponding to the logical processor and a physical address acquired from an index of the second conversion table corresponding to the logical processor are the same address corresponding to the same physical processor.

Dependencies are inferred from the claim text.

Facts

Application: 11/236,720Filed 28 Sep 2005
Priority: JP P2004-28353329 Sep 2004
Published: US 2006/0075207 A16 Apr 2006
Granted: 9 Oct 2012
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

G06F 12/1009
Address translation: using page tables, e.g. page table structures
G06F 9/45537
Hypervisors; Virtual machine monitors: provision of facilities of other operating environments, e.g. WINE
G06F 9/5077
Partitioning or combining of resources: logical partitioning of resources; Management or configuration of virtualized resources
G06F
Computing and data processing