[PATCH v4 0/4] kexec-tools: efi runtime support on kexec kernel
Dave Young
dyoung at redhat.com
Fri Dec 20 05:05:43 EST 2013
This patchset is for adding efi runtime support on kexec kernel
kernel patches see below thread:
http://thread.gmane.org/gmane.linux.kernel.efi/2491
in kexec-tools, this patchset will do below:
1. retrieve efi_info from debugfs boot_params, and fill the
x86 setup header
2. collect data efi runtime needed:
/sys/firmware/efi/systab: fw_vendor, runtime, config_tables and smbios
/sys/firmware/efi/efi-runtime-map/*, the phys-virt mappings in 1st kernel
3. assemble setup_data based on data get in 2) then pass it to 2nd kernel
changelog v3->v4:
update efi_info memmap to the saved runtime map instead of use 1st kernel
untouched memmap.
Tested on OVMF, dell laptop, lenovo laptop and HP workstation
Dave Young (4):
build fix: include x86-linux.h in x86-linux-setup.h
Add function get_bootparam
Add efi_info in x86 setup header
Passing efi related data via setup_data
include/x86/x86-linux.h | 3 +-
kexec/arch/i386/crashdump-x86.c | 4 +-
kexec/arch/i386/x86-linux-setup.c | 246 ++++++++++++++++++++++++++++++++++--
kexec/arch/i386/x86-linux-setup.h | 2 +
kexec/arch/x86_64/kexec-bzImage64.c | 6 +
5 files changed, 248 insertions(+), 13 deletions(-)
--
1.8.3.1
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