Interconnect partition binding API, allocation and management of application-specific partitions

Patent metadata

Field	Value
Publication number	US-9519795-B2
Application number	US-201314133803-A
Country	US
Kind code	B2
Filing date	Dec 19, 2013
Priority date	May 28, 2013
Publication date	Dec 13, 2016
Grant date	Dec 13, 2016

Abstract

One system includes one or more host computing systems, each host computing system including at least one execution core and a system memory. The system includes a plurality of virtual partitions executing on the one or more host computing systems and including a first partition having at least a portion of the system memory associated with at least one of the one or more host computing systems and configure to store a database therein. The system also includes an interconnect layer communicatively connecting the plurality of virtual partitions, the interconnect layer providing a programming interface by which direct memory access operations between partitions are coordinated. In response to database commands received at the first partition, the data stored in the database is provided to a requesting partition a direct memory access operation.

First claim

The invention claimed is:

1. A system comprising:
one or more host computing systems implemented at least partially by hardware, each host computing system including at least one execution core and a system memory;
a plurality of virtual partitions executing on the one or more host computing systems and including
a first virtual partition having at least a portion of the system memory associated with at least one of the one or more host computing systems and configured to store a database in the first virtual partition, and
a control virtual partition having at least another portion of the system memory associated with the at least one of the one or more host computing systems and configured to store a master resource database containing all resource assignments for all of the plurality of virtual partitions;

an interconnect layer communicatively connecting the plurality of virtual partitions, the interconnect layer providing a programming interface by which direct memory access operations between any of the plurality of plurality of partitions are coordinated;
wherein, in response to database commands received at the first virtual partition, data stored in the database of the first virtual partition is provided to a requesting virtual partition as a direct memory access operation, wherein the requesting virtual partition being any of the plurality of partitions;
the plurality of virtual partitions each comprises its own partition monitor that constrains applications running within each virtual partition to only assigned resources and protects processor-provided resources using memory mapped I/O operations according to the resource assignments;
the partition monitor within the virtual control partition creates and terminates the partition monitors in all other virtual partitions and aids processor context switches from one virtual partition to another, wherein the processor context switches being associated with at least a guest partition state and a privileged state of at least a virtual partition;
the partition monitor of each virtual partition being able to adaptively support features of each of the plurality of virtual partitions.

2. The system of claim 1 , further comprising a first service partition including at least one execution core and a portion of an associated system memory associated with the at least one execution core, the first service partition hosting a database server service associated with the database.

3. The system of claim 2 , wherein the plurality of virtual partitions includes at least one guest partition executing a database client application configured to access the database via database queries transmitted to the database server service of the first service partition.

4. The system of claim 3 , wherein the one or more host computing systems includes a first host computing system and a second host computing system, and wherein at least a portion of the system memory comprises system memory associated with both the first and second host computing systems.

5. The system of claim 4 , wherein the database is maintained in the system memory associated with both the first and second host computing systems.

6. The system of claim 4 , wherein the first service partition resides on at least one of the first or second host computing systems.

7. The system of claim 4 , wherein the plurality of virtual partitions includes a second service partition hosting a second database server service associated with the database.

8. The system of claim 7 , wherein the first and second service partitions are respectively located on the first and second host computing systems.

9. The system of claim 8 , wherein the database of the first service partition is distributed in system memory of the first and second host computing systems.

10. The system of claim 8 , wherein the first service partition, the second service partition, and the guest partition reside on a same host system, and wherein, in response to a database query received from the database client application executing on the guest partition, the database server service coordinates a direct memory access data transfer from the database to the database client application.

11. The system of claim 2 , wherein the database server service is provided trusted access to the at least portion of the system memory included in the database such that a database command issued by the database server service returns a pointer to data stored in the database.

12. The system of claim 1 , wherein the control partition executing a management application configured to manage allocation of the resource assignments.

13. The system of claim 1 , wherein the first partition further includes at least one execution core and hosts a database server service.

Assignees

• Guarrieri Stephen
• Hunter James
• Landis John
• Kelble Richard
• Unisys Corp

Inventors

• Guarrieri Stephen
• Hunter James
• Landis John
• Kelble Richard

Classifications

• G06F17/30289

  Physics · mapped topic

• G06F17/30584

  Physics · mapped topic

• G06F21/6218 Primary

  to a system of files or objects, e.g. local or distributed file system or database · CPC title

• G06F17/30566

  Physics · mapped topic

• G06F21/6227

  where protection concerns the structure of data, e.g. records, types, queries · CPC title