[Xen-devel] [PATCH] Check AMD SYSCFG DramModEn bit for MTRR configuration

[Wei Huang <wei.huang2@xxxxxxx>]

This patch checks whether SYSCFG DramModEn bit is clear by BIOS. Some 
buggy BIOS might set this bit to 1, which causes unexpected behavior on 
AMD platforms. This patch also increase family check for AMD CPUs when 
setting fixed MTRR ranges.
Signed-off-by: Wei Huang <wei.huang2@xxxxxxx>


PS: If OK, please apply it to both xen-4.1 and xen-4.0 trees.

Attachment: check_amd_syscfg_moden_bit.txt
Description: check_amd_syscfg_moden_bit.txt

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