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

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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:
    4c38609ac5 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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Andy Lutomirski 2014-10-07 17:16:21 -07:00 • committed by Paolo Bonzini

parent bf0b682c9b

commit 52ce3c21ae

1 changed files with 1 additions and 1 deletions

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arch/x86/kvm/vmx.c

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