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05460f151a
As mentioned in previous patch, wbinvd utilizes the vcpu_make_request and signal_event call pair to stall other vcpus. Due to the fact that these two calls are not thread-safe, we need to avoid concurrent call to this API pair. This patch adds wbinvd lock to serialize wbinvd emulation. Tracked-On: #7887 Signed-off-by: Yifan Liu <yifan1.liu@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com>