Virtual machine manager initiated page-in of kernel pages

A method comprising:

• establishing a first machine logic based rule, with the machine logic based rule including a first triggering condition, a first consequential responsive action, a second triggering condition, a second consequential responsive action, a third triggering condition, a third consequential responsive action, a fourth triggering condition, a fourth consequential responsive action;
• determining that the first triggering condition has occurred;
• in response to the determination that the first triggering condition has occurred, performing the first consequential responsive action;
• determining that the second triggering condition has occurred;
• in response to the determination that the second triggering condition has occurred, performing the second consequential responsive action;
• determining that the third triggering condition has occurred;
• in response to the determination that the third triggering condition has occurred, performing the third consequential responsive action;
• determining that the fourth triggering condition has occurred;
• in response to the determination that the fourth triggering condition has occurred, performing the fourth consequential responsive action;
• wherein:
• the first triggering condition includes the following sub-conditions:
• (i) at least one of a first set of important page(s) of a computer system has been paged out of kernel memory space and paged into paging memory space, and
• (ii) a processing status of the computer system indicates that the first set of important page(s) will be likely to be required for computer operations;
• and
• the first consequential responsive action includes the following:
• for any important page of the first set of important page(s) not present in kernel memory space, paging that important page from paging memory space back into kernel memory space;
• the second triggering condition further includes the following sub-condition(s):
• at least one backtrack exception is generated during page fault on behalf of at least one of the following sub-systems:
• virtual machine monitor (VMM), page size management daemon (PSMD), and/or least recently used daemon (LRUD);
• the second consequential responsive action includes the following:
• for any important page of the first set of important page(s) not present in kernel memory space, paging that important page from paging memory space back into kernel memory space;
• the third triggering condition further includes the following sub-conditions:
• at least one backtrack exception is generated during page fault on behalf of device drivers and/or kernel extensions that are registered with a virtual machine monitor (VMM) sub-system;
• the third consequential responsive action includes the following:
• for any important page of the first set of important page(s) not present in kernel memory space, paging that important page from paging memory space back into kernel memory space;
• the fourth triggering condition further includes the following sub-conditions:
• LRU critical code is executed when a free page count drops below a predetermined minimum free threshold;
• and
• the fourth consequential responsive action includes the following:
• for any important page of the first set of important page(s) not present in kernel memory space, paging that important page from paging memory space back into kernel memory space.