/* * The memory clobber is because the whole point is to invalidate * stale TLB entries and, especially if we're flushing global * mappings, we don't want the compiler to reorder any subsequent * memory accesses before the TLB flush.
*/ asmvolatile("invpcid %[desc], %[type]"
:: [desc] "m" (desc), [type] "r" (type) : "memory");
}
/* Flush all mappings for a given pcid and addr, not including globals. */ staticinlinevoid invpcid_flush_one(unsignedlong pcid, unsignedlong addr)
{
__invpcid(pcid, addr, INVPCID_TYPE_INDIV_ADDR);
}
/* Flush all mappings for a given PCID, not including globals. */ staticinlinevoid invpcid_flush_single_context(unsignedlong pcid)
{
__invpcid(pcid, 0, INVPCID_TYPE_SINGLE_CTXT);
}
/* Flush all mappings, including globals, for all PCIDs. */ staticinlinevoid invpcid_flush_all(void)
{
__invpcid(0, 0, INVPCID_TYPE_ALL_INCL_GLOBAL);
}
/* Flush all mappings for all PCIDs except globals. */ staticinlinevoid invpcid_flush_all_nonglobals(void)
{
__invpcid(0, 0, INVPCID_TYPE_ALL_NON_GLOBAL);
}
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.