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Re: [Xen-devel] [PATCH] Check AMD SYSCFG DramModEn bit for MTRR configur
| To: | Keir Fraser <keir.xen@xxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [PATCH] Check AMD SYSCFG DramModEn bit for MTRR configuration |
| From: | Anish Patel <anish.mailing.list@xxxxxxxxx> |
| Date: | Wed, 02 Mar 2011 10:20:15 -0500 |
| Cc: | Wei Huang <wei.huang2@xxxxxxx>, "'xen-devel@xxxxxxxxxxxxxxxxxxx'" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Wed, 02 Mar 2011 07:22:44 -0800 |
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Buggy BIOSes are more common than you think. especially from small
shops, and some times they don't tend to release BIOS updates for their
platforms.
On 03/02/11 02:01, Keir Fraser wrote: On 01/03/2011 21:11, "Wei Huang"<wei.huang2@xxxxxxx> wrote: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.How common are these buggy BIOSes? Can't we just get users to update their BIOS? -- KeirSigned-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_______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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