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Date: Tue, 21 Aug 2018 09:24:01 -0400 From: Masayoshi Mizuma <msys.mizuma@...il.com> To: Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org Cc: Masayoshi Mizuma <msys.mizuma@...il.com>, Masayoshi Mizuma <m.mizuma@...fujitsu.com>, linux-kernel@...r.kernel.org, Baoquan He <bhe@...hat.com> Subject: [RESEND] [PATCH 2/2] docs: kernel-parameters.txt: document rand_mem_physical_padding parameter From: Masayoshi Mizuma <m.mizuma@...fujitsu.com> This kernel parameter allows to change the padding used for the physical memory mapping section when KASLR memory is enabled. For some systems, the default value, CONFIG_RANDOMIZE_MEMORY_PHYSICAL_PADDING, is not enough. The option is useful to adjust the padding size to work around such issue. Signed-off-by: Masayoshi Mizuma <m.mizuma@...fujitsu.com> --- Documentation/admin-guide/kernel-parameters.txt | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 533ff5c..d977091 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -3382,6 +3382,13 @@ ramdisk_size= [RAM] Sizes of RAM disks in kilobytes See Documentation/blockdev/ramdisk.txt. + rand_mem_physical_padding= + [KNL] Define the padding size in terabytes + used for the physical memory mapping section + when KASLR memory is enabled. + The default value is + CONFIG_RANDOMIZE_MEMORY_PHYSICAL_PADDING. + ras=option[,option,...] [KNL] RAS-specific options cec_disable [X86] -- 2.18.0
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