On 12/09/2019 08:22, Chao Gao wrote: > It ports the implementation of is_blacklisted() in linux kernel > to Xen. > > Late loading may cause system hang if CPUs are affected by BDF90. > Check against BDF90 before performing a late loading. > > Signed-off-by: Chao Gao <chao....@intel.com>
There is an Intel-blessed workaround for this issue, which is to perform parallel loading and issue a WBINVD inside the rendezvous, which is being used in production by a number of vendors. We should prohibit late loading cases which we know to be broken, but parallel loading should be permitted. ~Andrew _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
