From: Andy Lutomirski <luto@amacapital.net>
Date: Wed, 8 Oct 2014 00:16:21 +0000 (-0700)
Subject: x86,kvm,vmx: Don't trap writes to CR4.TSD
X-Git-Tag: omap-for-v3.19/fixes-rc1~43^2~110
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=52ce3c21aec30d9dd99a89662ae87c657636787b;p=pandora-kernel.git

x86,kvm,vmx: Don't trap writes to CR4.TSD

CR4.TSD is guest-owned; don't trap writes to it in VMX guests.  This
avoids a VM exit on context switches into or out of a PR_TSC_SIGSEGV
task.

I think that this fixes an unintentional side-effect of:
    4c38609ac569 KVM: VMX: Make guest cr4 mask more conservative

Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---

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