kernel.git/drivers/firmware/efi/runtime-map.c, branch linux-3.15.yHosts the 0x221E linux distro kernel.
https://git.0xinfinity.dev/distro/kernel.git/atom?h=linux-3.15.y2013-12-21T15:29:36Zefi: Export EFI runtime memory mapping to sysfs2013-12-21T15:29:36ZDave Young2013-12-20T10:02:18Zurn:sha1:926172d46038d7610b6b8d84e40db727cefb482d
kexec kernel will need exactly same mapping for EFI runtime memory
ranges. Thus here export the runtime ranges mapping to sysfs,
kexec-tools will assemble them and pass to 2nd kernel via setup_data.
Introducing a new directory /sys/firmware/efi/runtime-map just like
/sys/firmware/memmap. Containing below attribute in each file of that
directory:
attribute num_pages phys_addr type virt_addr
Signed-off-by: Dave Young <dyoung@redhat.com>
Tested-by: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>