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RE: [Xen-devel] [PATCH] Check AMD SYSCFG DramModEn bit for MTRR configur
| To: | "Huang2, Wei" <Wei.Huang2@xxxxxxx>, "'xen-devel@xxxxxxxxxxxxxxxxxxx'" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | RE: [Xen-devel] [PATCH] Check AMD SYSCFG DramModEn bit for MTRR configuration |
| From: | "Huang2, Wei" <Wei.Huang2@xxxxxxx> |
| Date: | Tue, 1 Mar 2011 18:52:08 -0600 |
| Accept-language: | en-US |
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| Delivery-date: | Tue, 01 Mar 2011 16:50:51 -0800 |
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| Thread-topic: | [Xen-devel] [PATCH] Check AMD SYSCFG DramModEn bit for MTRR configuration |
This patch has some problem on SMP system. I am creating another one. Sorry... -Wei -----Original Message----- From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Wei Huang Sent: Tuesday, March 01, 2011 3:12 PM To: 'xen-devel@xxxxxxxxxxxxxxxxxxx' Subject: [Xen-devel] [PATCH] Check AMD SYSCFG DramModEn bit for MTRR configuration 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. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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