| commit | 52ce3c21aec30d9dd99a89662ae87c657636787b | [log] [tgz] |
|---|---|---|
| author | Andy Lutomirski <luto@amacapital.net> | Tue Oct 07 17:16:21 2014 -0700 |
| committer | Paolo Bonzini <pbonzini@redhat.com> | Mon Nov 03 12:07:22 2014 +0100 |
| tree | 73e8a750a72c8fe375ab2684abe3579bf9725971 | |
| parent | bf0b682c9b6a6d6d54adf439bfe953feef7be2e8 [diff] |
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>