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[Xen-devel] [patch] PFN_PHYS PAE overflow (fixes bug 242)
| To: | xen-devel@xxxxxxxxxxxxxxxxxxx |
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| Subject: | [Xen-devel] [patch] PFN_PHYS PAE overflow (fixes bug 242) |
| From: | "Scott Parish" <srparish@xxxxxxxxxx> |
| Date: | Fri, 14 Oct 2005 17:12:24 +0000 |
| Delivery-date: | Fri, 14 Oct 2005 18:30:08 +0000 |
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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
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