Dear Goto-san, In the website http://lists.osdl.org/pipermail/hotplug_sig/2006-June/000624.html there is a reference to the following three patches acpi_sci_emulation.patch acpi_memhotplug_emu.patch hide-system-ram-resource.patch Where can I access them from? Thanks Bithika Quoting Yasunori Goto <y-goto at jp.fujitsu.com>: > Hello. > >> The test case specified in >> http://lists.osdl.org/pipermail/hotplug_sig/2006-June/000614.html >> >> shows how to add 1GB of memory to the kernel that has been booted >> with just 2 GB >> memory. >> >> 1. Is it possible to specify the *STARTING ADDRESS* of the memory to >> be added in >> addition to the *SIZE*. > > Yes. _CRS method of ACPI'S DSDT can return address and size. > In this example, This is written in "2. Write Memory object" > > Method(_CRS) { > Name(RT0,ResourceTemplate() { > : > 0x100000000, <- start address > 0x13fffffff, > 0, > 0x40000000, <- size > : > } > >> This emulates memory hot add in hardware when I >> physically plug-in memory DIMM into a particular DIMM slot. > > Yes. > >> 2. Is the same feature available to emulate hot remove of memory DIMMS? > > ACPI has the _EJ0 method. If it is described for DIMM's for DSDT, > it should be called after completion of memory remove by OS. > > Thanks. > > -- > Yasunori Goto
