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Liu, Jinsong authored
Current xen cpu offline logic flush cache too early, which potentially break cache coherency. wbinvd should be the last ops before cpu going into dead, otherwise cache may be dirty, i.e, something like setting an A bit on page tables. Pointed out by Arjan van de Ven. Signed-off-by: Liu, Jinsong <jinsong.liu@intel.com>
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