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[Xen-devel] [PATCH] MTRR: clear DramModEn bit of sys_cfg MSR
| To: | "'xen-devel@xxxxxxxxxxxxxxxxxxx'" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] [PATCH] MTRR: clear DramModEn bit of sys_cfg MSR |
| From: | Wei Huang <wei.huang2@xxxxxxx> |
| Date: | Mon, 4 Apr 2011 17:23:30 -0500 |
| Delivery-date: | Mon, 04 Apr 2011 15:27:19 -0700 |
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Some buggy BIOS might set sys_cfg DramModEn bit to 1, which can cause
unexpected behavior on AMD platforms. This patch clears DramModEn bit.
The patch was derived from upstream kernel patch (see
https://patchwork.kernel.org/patch/11425/).
Signed-off-by: Wei Huang <wei.huang2@xxxxxxx>
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