[Xen-devel] [patch] PFN_PHYS PAE overflow (fixes bug 242)

["Scott Parish" <srparish@xxxxxxxxxx>]

machine_specific_memory_setup() makes the following call to setup e820:

    add_memory_region(0, PFN_PHYS(max_pfn), E820_RAM);

Since max_pfn is (rightly) an unsigned long, we overflow for the current
definition of PFN_PHYS. Attached is my preferred solution as it will
hopefully avoid similar situations that may come up in the future.

sRp

-- 
Scott Parish
Signed-off-by: srparish@xxxxxxxxxx

Attachment: pfn_phys_overflow.diff
Description: Text document

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