3.3 RECOMMENDATIONS FOR SYSTEM SOFTWARE
System software may disable use of Intel AMX by clearing XCR0[18:17],
by clearing CR4.OSXSAVE, or by setting IA32_XFD[18]. System software
should initialize AMX state (e.g., by executing TILERELEASE) when
doing so because maintaining AMX state in a non-initialized state may
have negative power and performance implications. In addition,
software should not rely on the state of the tile data after setting
IA32_XFD[18]; software should always reload or reinitialize the tile
data after clearing IA32_XFD[18].