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authorDave Young <dyoung@redhat.com>2013-12-20 18:02:18 +0800
committerMatt Fleming <matt.fleming@intel.com>2013-12-21 15:29:36 +0000
commit926172d46038d7610b6b8d84e40db727cefb482d (patch)
tree8963aaa9fccd0a4ee0d59717b4de8e8cdfebbe62 /arch/x86/include/uapi/asm
parenta0998eb15afeffbf52a2c2829318f67df9ac57b8 (diff)
downloadop-kernel-dev-926172d46038d7610b6b8d84e40db727cefb482d.zip
op-kernel-dev-926172d46038d7610b6b8d84e40db727cefb482d.tar.gz
efi: Export EFI runtime memory mapping to sysfs
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>
Diffstat (limited to 'arch/x86/include/uapi/asm')
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