I might be wrong but as I remember powerpc32 is deprecated in kexec-tools and all code use ppc64 directory even for 32 bit code... 2016-07-21 23:04 GMT+03:00 Daniel Walker <danielwa at cisco.com>: > On 07/21/2016 12:33 PM, Maxim Uvarov wrote: >> >> 2016-07-21 18:19 GMT+03:00 Daniel Walker <danielwa at cisco.com>: >>> >>> There appears to be no code which checks what is or is not System ram, >>> there is nothing that checks the device tree to see what is IO memory, >>> and >>> nothing reads /proc/iomem .. So AFAIK nothing cares if it's IO memory, or >>> system ram, and there's no method to config things to skip any memory in >>> the >>> system, except in makedumpfile which can skip symbols not IO memory. >>> >>> >> Daniel, unfortunately it's long time for me when I looked to powerpc >> code. But I just >> checked that here: >> >> kexec-tools-2.0.6/kexec/arch/ppc64/kexec-ppc64.c >> >> is probably what you need. > > > I have a powerpc32 .. In the powerpc64 file I only see something called > "reserved-ranges" which may do what I want, however, that doesn't exist in > the 32bit version. It appers the reserved-ranges is used by OPAL firmware , > which I don't have. There doesn't appear to be anything generic in ppc64 to > exclude device IO memory. > > Daniel -- Best regards, Maxim Uvarov