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List:       grub-bug
Subject:    [bug #39861] Grub2 collapses unknown e820 memory types to reserved
From:       Josh Triplett <INVALID.NOREPLY () gnu ! org>
Date:       2013-09-19 15:20:42
Message-ID: 20130919-082042.sv61092.76322 () savannah ! gnu ! org
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Follow-up Comment #5, bug #39861 (project grub):

While the specs for e820 do indeed say that you should treat unknown types as
reserved (in the sense of not touching the memory they refer to), that doesn't
mean you should rewrite the table to change those unknown values to reserved. 
While for GRUB's purposes it should treat any unknown type as reserved and not
touch the memory, if it has to touch the e820 values for any reason, it should
preserve the original values for forward compatibility with software that
might know what the types mean.

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