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(parent: d7bef19) | patch
x86, amd, MTRR: correct DramModEn bit of SYS_CFG MSR
authorWei Huang <wei.huang2@amd.com>
Wed, 6 Apr 2011 08:01:31 +0000 (09:01 +0100)
committerWei Huang <wei.huang2@amd.com>
Wed, 6 Apr 2011 08:01:31 +0000 (09:01 +0100)
commit2af33c22201fe4917f93e4df5d54893851f531c5
treea23c77c6059536e66662219f6890cd5326e3bff2tree
parentd7bef197f670c30031987e80a5461de03816e1b1commit | diff
x86, amd, MTRR: correct DramModEn bit of SYS_CFG MSR

Some buggy BIOS might set SYS_CFG DramModEn bit to 1, which can cause
unexpected behavior on AMD platforms. This patch clears DramModEn bit
if it is 1.

Signed-off-by: Wei Huang <wei.huang2@amd.com>
xen/arch/x86/cpu/amd.c diff | blob | blame | history
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