xen/p2m: An early bootup variant of set_phys_to_machine

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During early bootup we can't use alloc_page, so to allocate
leaf pages in the P2M we need to use extend_brk. For that
we are utilizing the early_alloc_p2m and early_alloc_p2m_middle
functions to do the job for us. This function follows the
same logic as set_phys_to_machine.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

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Konrad Rzeszutek Wilk 2012-03-30 14:33:14 -04:00

parent d5096850b4

commit 940713bb2c

2 changed files with 16 additions and 0 deletions

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arch/x86/include/asm/xen/page.h

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15

arch/x86/xen/p2m.c

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