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[S390] System z large page support.

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This adds hugetlbfs support on System z, using both hardware large page
support if available and software large page emulation on older hardware.
Shared (large) page tables are implemented in software emulation mode,
by using page->index of the first tail page from a compound large page
to store page table information.

Signed-off-by: Gerald Schaefer <geraldsc@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Gerald Schaefer 2008-04-30 13:38:46 +02:00 • committed by Martin Schwidefsky
commit 53492b1de4
14 changed files with 437 additions and 42 deletions
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