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x86/kexec: Cleanup KEXEC_VERIFY_SIG Kconfig help text

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Fix typos and also make it simpler without losing the gist of what it says.

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vivek Goyal <vgoyal@redhat.com>
Link: http://lkml.kernel.org/r/1426251877-11415-1-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Borislav Petkov 2015-03-13 14:04:37 +01:00 committed by Ingo Molnar
parent 56544d29c3
commit d8eb894041
1 changed files with 4 additions and 7 deletions
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11
arch/x86/Kconfig
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@ -1742,14 +1742,11 @@ config KEXEC_VERIFY_SIG
depends on KEXEC_FILE
---help---
This option makes kernel signature verification mandatory for
kexec_file_load() syscall. If kernel is signature can not be
verified, kexec_file_load() will fail.
the kexec_file_load() syscall.
This option enforces signature verification at generic level.
One needs to enable signature verification for type of kernel
image being loaded to make sure it works. For example, enable
bzImage signature verification option to be able to load and
verify signatures of bzImage. Otherwise kernel loading will fail.
In addition to that option, you need to enable signature
verification for the corresponding kernel image type being
loaded in order for this to work.
config KEXEC_BZIMAGE_VERIFY_SIG
bool "Enable bzImage signature verification support"