xen: mask_rw_pte mark RO all pagetable pages up to pgt_buf_top

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mask_rw_pte is currently checking if a pfn is a pagetable page if it
falls in the range pgt_buf_start - pgt_buf_end but that is incorrect
because pgt_buf_end is a moving target: pgt_buf_top is the real
boundary.

Acked-by: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

...

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Stefano Stabellini 2011-04-12 12:19:49 +01:00 • committed by Konrad Rzeszutek Wilk

parent a38647837a

commit b9269dc7bf

1 changed files with 1 additions and 1 deletions

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arch/x86/xen/mmu.c

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