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authorDave Young <dyoung@redhat.com>2013-12-20 14:02:18 +0400
committerMatt Fleming <matt.fleming@intel.com>2013-12-21 19:29:36 +0400
commit926172d46038d7610b6b8d84e40db727cefb482d (patch)
tree8963aaa9fccd0a4ee0d59717b4de8e8cdfebbe62 /drivers/firmware/efi/Makefile
parenta0998eb15afeffbf52a2c2829318f67df9ac57b8 (diff)
downloadlinux-926172d46038d7610b6b8d84e40db727cefb482d.tar.xz
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 'drivers/firmware/efi/Makefile')
-rw-r--r--drivers/firmware/efi/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/firmware/efi/Makefile b/drivers/firmware/efi/Makefile
index 9ba156d3c775..a58e0f183a08 100644
--- a/drivers/firmware/efi/Makefile
+++ b/drivers/firmware/efi/Makefile
@@ -5,3 +5,4 @@ obj-y += efi.o vars.o
obj-$(CONFIG_EFI_VARS) += efivars.o
obj-$(CONFIG_EFI_VARS_PSTORE) += efi-pstore.o
obj-$(CONFIG_UEFI_CPER) += cper.o
+obj-$(CONFIG_EFI_RUNTIME_MAP) += runtime-map.o