linux/drivers/firmware/efi
Arvind Sankar d5cdf4cfea efi/x86: Don't relocate the kernel unless necessary
Add alignment slack to the PE image size, so that we can realign the
decompression buffer within the space allocated for the image.

Only relocate the kernel if it has been loaded at an unsuitable address:

 - Below LOAD_PHYSICAL_ADDR, or
 - Above 64T for 64-bit and 512MiB for 32-bit

For 32-bit, the upper limit is conservative, but the exact limit can be
difficult to calculate.

Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20200303221205.4048668-6-nivedita@alum.mit.edu
Link: https://lore.kernel.org/r/20200308080859.21568-20-ardb@kernel.org
2020-03-08 09:58:22 +01:00
..
libstub efi/x86: Don't relocate the kernel unless necessary 2020-03-08 09:58:22 +01:00
test efi/efi_test: Lock down /dev/efi_test and require CAP_SYS_ADMIN 2019-10-31 09:40:21 +01:00
apple-properties.c efi/dev-path-parser: Add struct definition for vendor type device path nodes 2020-02-23 21:59:42 +01:00
arm-init.c efi/arm: Move FDT specific definitions into fdtparams.c 2020-02-23 21:59:42 +01:00
arm-runtime.c efi/arm: Drop unnecessary references to efi.systab 2020-02-23 21:59:42 +01:00
capsule-loader.c efi/capsule-loader: Drop superfluous assignment 2020-02-23 21:58:31 +01:00
capsule.c efi: Replace GPL license boilerplate with SPDX headers 2019-02-04 08:27:25 +01:00
cper-arm.c efi: Replace GPL license boilerplate with SPDX headers 2019-02-04 08:27:25 +01:00
cper-x86.c efi: Decode IA32/X64 Context Info structure 2018-05-14 08:57:48 +02:00
cper.c efi/cper: Fix endianness of PCIe class code 2019-10-07 15:24:35 +02:00
dev-path-parser.c efi/dev-path-parser: Add struct definition for vendor type device path nodes 2020-02-23 21:59:42 +01:00
earlycon.c efi/earlycon: Fix write-combine mapping on x86 2019-12-25 10:46:06 +01:00
efi-bgrt.c efi/bgrt: Accept BGRT tables with a version of 0 2020-02-22 23:37:37 +01:00
efi-pstore.c efi: Use more granular check for availability for variable services 2020-02-23 21:59:42 +01:00
efi.c Merge branch 'efi/urgent' into efi/core, to pick up fixes 2020-03-08 09:57:58 +01:00
efibc.c efibc: Replace variable set function in notifier call 2019-06-22 10:24:57 +02:00
efivars.c Merge branch 'efi/urgent' into efi/core, to pick up fixes 2020-03-08 09:57:58 +01:00
embedded-firmware.c efi: Add embedded peripheral firmware support 2020-03-03 10:28:00 +01:00
esrt.c efi/esrt: Clean up efi_esrt_init 2020-02-23 21:57:59 +01:00
fake_mem.c efi: Fix handling of multiple efi_fake_mem= entries 2020-01-20 08:14:29 +01:00
fake_mem.h x86/efi: Add efi_fake_mem support for EFI_MEMORY_SP 2019-11-07 15:44:23 +01:00
fdtparams.c efi/arm: Rewrite FDT param discovery routines 2020-02-23 21:59:42 +01:00
Kconfig efi: Add embedded peripheral firmware support 2020-03-03 10:28:00 +01:00
Makefile Merge tag 'efi-next' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi into efi/core 2020-03-08 09:23:36 +01:00
memattr.c efi: Move mem_attr_table out of struct efi 2020-02-23 21:59:42 +01:00
memmap.c efi: Fix handling of multiple efi_fake_mem= entries 2020-01-20 08:14:29 +01:00
rci2-table.c efi: Don't attempt to map RCI2 config table if it doesn't exist 2019-12-10 12:13:02 +01:00
reboot.c efi: Use EFI ResetSystem only when available 2020-02-23 21:59:42 +01:00
runtime-map.c efi: Replace GPL license boilerplate with SPDX headers 2019-02-04 08:27:25 +01:00
runtime-wrappers.c efi: Add 'runtime' pointer to struct efi 2020-02-23 21:59:42 +01:00
tpm.c efi/tpm: Return -EINVAL when determining tpm final events log size fails 2019-10-31 09:40:17 +01:00
vars.c efi: Replace GPL license boilerplate with SPDX headers 2019-02-04 08:27:25 +01:00
x86_fake_mem.c x86/efi: Add efi_fake_mem support for EFI_MEMORY_SP 2019-11-07 15:44:23 +01:00