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[Xen-devel] MSRs in Xen!

To: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] MSRs in Xen!
From: "Jayaraman, Bhaskar" <Bhaskar.Jayaraman@xxxxxxx>
Date: Fri, 5 Feb 2010 17:17:13 +0530
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Thread-topic: MSRs in Xen!

Hi I notice that some of the MSRs aren’t emulated in Xen in the file xen/include/asm-x86/msr-index.h where I don’t see a define for MSR_TEST_CTL 0x0033 or MSR_BBL_CR_BUSY 0x011b etc.

 

This is causing a GPF in my VM while trying to read or write to them. I’d like to know why these and some others aren’t implemented. If there’s a specific IA CPU family for which alone we’re emulating these registers I’d like to know that too.

Regards,

Bhaskar.

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