> > - e820_add_entry(cxl_base, cxl_size, E820_RESERVED); > > memory_region_init(mr, OBJECT(machine), "cxl_host_reg", cxl_size); > > memory_region_add_subregion(system_memory, cxl_base, mr); > > cxl_resv_end = cxl_base + cxl_size; > > @@ -1077,7 +1076,6 @@ void pc_memory_init(PCMachineState *pcms, > > memory_region_init_io(&fw->mr, OBJECT(machine), > > &cfmws_ops, fw, > > "cxl-fixed-memory-region", > > fw->size); > > memory_region_add_subregion(system_memory, fw->base, > > &fw->mr); > > Or will this be subregion of cxl_base? > > Thanks, > Pankaj
The memory region backing this memory area still has to be initialized and added in the QEMU system, but it will now be initialized for use by linux after PCI/ACPI setup occurs and the CXL driver discovers it via CDAT. It's also still possible to assign this area a static memory region at bool by setting up the SRATs in the ACPI tables, but that patch is not upstream yet.
