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由 Babu Moger 提交于
Enable TOPOEXT feature on EPYC CPU. This is required to support hyperthreading on VM guests. Also extend xlevel to 0x8000001E. Disable topoext on PC_COMPAT_2_12 and keep xlevel 0x8000000a. Signed-off-by: NBabu Moger <babu.moger@amd.com> Message-Id: <1529443919-67509-3-git-send-email-babu.moger@amd.com> [ehabkost: Added EPYC-IBPB.xlevel to PC_COMPAT_2_12] Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>
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