SYSTEM AND METHOD FOR REQUESTING SYSTEM SERVICES

1 . A host computing device comprising:

a memory and a communications interface;

a processor interconnected with the memory and the communications interface, the processor configured to:

detect a request, by a target computing device, for execution of a system service by the host computing device;

obtain system service parameters for the requested system service;

execute the system service in accordance with the system service parameters; and

send a completion indicator to the target computing device.

2 . The device of claim 1 , wherein to detect the request for execution of the system service, the processor is configured to:

detect a polling condition and in response to the polling condition, poll an exception log of the target computing device; and

identify the request represented by an exception detected in the exception log.

3 . The device of claim 2 , wherein the polling condition comprises one of: a system interrupt initiated at the host computing device by the target computing device; and passage of a predetermined period of time.

4 . The device of claim 1 , wherein to obtain the system service parameters, the processor is configured to request the system service parameters from the target computing device.

5 . The device of claim 1 , wherein the system service comprises one or more of: a read request, a write request, and a log request.

6 . A target computing device comprising:

a plurality of processing elements configured to execute a program;

a memory and a communications interface;

a controller interconnected with the memory, the communications interface, and the plurality of processing elements, the controller configured to:

during execution of the program by at least one of the processing elements, detect a service request condition for requesting a system service from a host device;

in response to the service request condition, generate an exception to request the system service from the host device; and

in response to a completion indicator indicating completion of the requested system service from the host device, resume execution of the program.

7 . The device of claim 6 , wherein the controller is configured to log the exception in an exception log at the target device.

8 . The device of claim 7 , wherein to generate the exception, the controller is configured to initiate a system interrupt at the host device to cause the host device to poll the exception log to identify the exception as the request for the system service.

9 . The device of claim 6 , wherein the controller is further configured to:

receive a request for system service parameters from the host device; and

send, to the host device, the system service parameters for the host device to execute the system service.

10 . The device of claim 6 , wherein the system service comprises one or more of: a read request, a write request and a log request.

11 . A method comprising:

detecting, at a host device, a request for a system service at a target device;

obtaining system service parameters for processing the request from the target device;

executing the system service request in accordance with the system service parameters; and

sending a completion indicator to the target device.

12 . The method of claim 11 , wherein detecting the request for the system service comprises: polling an exception log at the target device to identify an exception indicating the request for the system service.

13 . The method of claim 12 , further comprising: detecting a system interrupt initiated by the exception, wherein the polling is performed in response to the system interrupt.

14 . The method of claim 11 , wherein obtaining the system service parameters comprises requesting the system service parameters from the target device.

15 . The method of claim 11 , wherein the system service comprises one or more of: a read request, a write request, and a log request.

16 . A method comprising:

during execution of a program at a target device, detecting a service request condition for requesting a system service from a host device;

in response to the service request condition, generating an exception to request the system service from the host device; and

in response to a completion indicator from the host device, resuming the execution of the program.

17 . The method of claim 16 , further comprising: logging the exception in an exception log stored at the target device.

18 . The method of claim 17 , wherein generating the exception comprises: initiating a system interrupt at the host device to cause the host device to poll the exception log to identify the exception as the request for the system service.

19 . The method of claim 16 , further comprising:

receiving a request for system service parameters from the host device; and

sending, to the host device, the system service parameters for the host device to execute the system service.

20 . The method of claim 16 , wherein the system service comprises one or more of: a read request, a write request and a log request.