[Bug 63121] The guest will hang after live migration.

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https://bugzilla.kernel.org/show_bug.cgi?id=63121

Zhou, Chao <chao.zhou@xxxxxxxxx> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |CODE_FIX

--- Comment #3 from Zhou, Chao <chao.zhou@xxxxxxxxx> ---
this commit fixed the bug:
commit 46c34cb059d519601fb567b55cf45c300fea2928
Author: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Date:   Thu Oct 17 16:50:46 2013 +0200

    KVM: x86: fix KVM_SET_XCRS for CPUs that do not support XSAVE

    The KVM_SET_XCRS ioctl must accept anything that KVM_GET_XCRS
    could return.  XCR0's bit 0 is always 1 in real processors with
    XSAVE, and KVM_GET_XCRS will always leave bit 0 set even if the
    emulated processor does not have XSAVE.  So, KVM_SET_XCRS must
    ignore that bit when checking for attempts to enable unsupported
    save states.

    Reviewed-by: Gleb Natapov <gleb@xxxxxxxxxx>
    Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>

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