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Extend CPUID emulation to support XFD, AMX_TILE, AMX_INT8 and AMX_BF16. Adding those bits into kvm_cpu_caps finally activates all previous logics in this series. Hide XFD on 32bit host kernels. Otherwise it leads to a weird situation where KVM tells userspace to migrate MSR_IA32_XFD and then rejects attempts to read/write the MSR. Signed-off-by: Jing Liu <[email protected]> Signed-off-by: Yang Zhong <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>