From: Stefano Stabellini <[email protected]> Add link for more information 279b706 x86,xen: introduce x86_init.mapping.pagetable_reserve
-v2: updated to commets from hpa to include commit name. Signed-off-by: Yinghai Lu <[email protected]> --- arch/x86/mm/init.c | 9 +++++++++ 1 files changed, 9 insertions(+), 0 deletions(-) diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index 02cea14..cb4f8ba 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -25,6 +25,15 @@ unsigned long __meminitdata pgt_buf_top; static unsigned long min_pfn_mapped; +/* + * Pages returned are already directly mapped. + * + * Changing that is likely to break Xen, see commit: + * + * 279b706 x86,xen: introduce x86_init.mapping.pagetable_reserve + * + * for detailed information. + */ __ref void *alloc_low_pages(unsigned int num) { unsigned long pfn; -- 1.7.7 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
