CXL毒页不入分配器 · v1

cxl_mem_get_poison() uses a device-owned output buffer for each Get Poison List response. It traces the records before issuing the next command, which overwrites that buffer when the device sets the M

poison_by_decoder() performs two different operations: it queries an unmapped DPA gap preceding an endpoint decoder, then queries the DPA resource assigned to that decoder and its region. Factor the

A frame can be known bad before its backing memory is onlined. A CXL Type-3 device retains poison as DPA-based Media Error Records and can report those records through GET_POISON_LIST after a reboot,

The inherited-poison path checks initialized blocks before releasing them to the buddy allocator. CXL device poison discovered before hot-added memory is onlined is recorded separately in the pre-onli

The trigger_poison_list interface may retrieve poison after CXL memory is already online, which is too late to prevent known-bad frames from entering the page allocator. During RAM-region probe, retr