From: matt@codeblueprint.co.uk (Matt Fleming)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 20/21] efi: stub: use high allocation for converted command line
Date: Thu, 21 Jan 2016 16:20:56 +0000 [thread overview]
Message-ID: <20160121162056.GG2510@codeblueprint.co.uk> (raw)
In-Reply-To: <1452518355-4606-22-git-send-email-ard.biesheuvel@linaro.org>
On Mon, 11 Jan, at 02:19:14PM, Ard Biesheuvel wrote:
> Before we can move the command line processing before the allocation
> of the kernel, which is required for detecting the 'nokaslr' option
> which controls that allocation, move the converted command line higher
> up in memory, to prevent it from interfering with the kernel itself.
>
> Since x86 needs the address to fit in 32 bits, use UINT_MAX as the upper
> bound there. Otherwise, use ULONG_MAX (i.e., no limit)
>
> Cc: Matt Fleming <matt@codeblueprint.co.uk>
> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
> ---
> arch/x86/include/asm/efi.h | 2 ++
> drivers/firmware/efi/libstub/efi-stub-helper.c | 14 +++++++++++++-
> 2 files changed, 15 insertions(+), 1 deletion(-)
Reviewed-by: Matt Fleming <matt@codeblueprint.co.uk>
next prev parent reply other threads:[~2016-01-21 16:20 UTC|newest]
Thread overview: 69+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-11 13:18 [PATCH v3 00/21] arm64: implement support for KASLR Ard Biesheuvel
2016-01-11 13:18 ` [PATCH v3 01/21] of/fdt: make memblock minimum physical address arch configurable Ard Biesheuvel
2016-01-11 13:18 ` [PATCH v3 02/21] arm64: introduce KIMAGE_VADDR as the virtual base of the kernel region Ard Biesheuvel
2016-01-11 16:31 ` Mark Rutland
2016-01-11 13:18 ` [PATCH v3 03/21] arm64: pgtable: add dummy pud_index() and pmd_index() definitions Ard Biesheuvel
2016-01-11 17:40 ` Mark Rutland
2016-01-12 17:25 ` Ard Biesheuvel
2016-01-11 13:18 ` [PATCH v3 04/21] arm64: decouple early fixmap init from linear mapping Ard Biesheuvel
2016-01-11 16:09 ` Mark Rutland
2016-01-11 16:15 ` Ard Biesheuvel
2016-01-11 16:27 ` Mark Rutland
2016-01-11 16:51 ` Mark Rutland
2016-01-11 17:08 ` Ard Biesheuvel
2016-01-11 17:15 ` Ard Biesheuvel
2016-01-11 17:21 ` Mark Rutland
2016-01-11 13:18 ` [PATCH v3 05/21] arm64: kvm: deal with kernel symbols outside of " Ard Biesheuvel
2016-01-12 12:36 ` Mark Rutland
2016-01-12 13:23 ` Ard Biesheuvel
2016-01-11 13:18 ` [PATCH v3 06/21] arm64: pgtable: implement static [pte|pmd|pud]_offset variants Ard Biesheuvel
2016-01-11 16:24 ` Mark Rutland
2016-01-11 17:28 ` Ard Biesheuvel
2016-01-11 17:31 ` Mark Rutland
2016-01-11 13:19 ` [PATCH v3 07/21] arm64: move kernel image to base of vmalloc area Ard Biesheuvel
2016-01-12 18:14 ` Mark Rutland
2016-01-13 8:39 ` Ard Biesheuvel
2016-01-13 9:58 ` Ard Biesheuvel
2016-01-13 11:11 ` Mark Rutland
2016-01-13 11:14 ` Ard Biesheuvel
2016-01-13 13:51 ` Mark Rutland
2016-01-13 15:50 ` Ard Biesheuvel
2016-01-13 16:26 ` Mark Rutland
2016-01-14 18:57 ` Mark Rutland
2016-01-15 9:54 ` Ard Biesheuvel
2016-01-15 11:23 ` Mark Rutland
2016-01-27 14:31 ` Ard Biesheuvel
2016-01-11 13:19 ` [PATCH v3 08/21] arm64: add support for module PLTs Ard Biesheuvel
2016-01-22 16:55 ` Mark Rutland
2016-01-22 17:06 ` Ard Biesheuvel
2016-01-22 17:19 ` Mark Rutland
2016-01-11 13:19 ` [PATCH v3 09/21] extable: add support for relative extables to search and sort routines Ard Biesheuvel
2016-01-11 13:19 ` [PATCH v3 10/21] arm64: switch to relative exception tables Ard Biesheuvel
2016-01-11 13:19 ` [PATCH v3 11/21] arm64: avoid R_AARCH64_ABS64 relocations for Image header fields Ard Biesheuvel
2016-01-13 18:12 ` Mark Rutland
2016-01-13 18:48 ` Ard Biesheuvel
2016-01-14 8:51 ` Ard Biesheuvel
2016-01-14 9:05 ` Ard Biesheuvel
2016-01-14 10:46 ` Mark Rutland
2016-01-14 11:22 ` Ard Biesheuvel
2016-01-11 13:19 ` [PATCH v3 12/21] arm64: avoid dynamic relocations in early boot code Ard Biesheuvel
2016-01-14 17:09 ` Mark Rutland
2016-01-11 13:19 ` [PATCH v3 13/21] arm64: allow kernel Image to be loaded anywhere in physical memory Ard Biesheuvel
2016-01-11 13:19 ` [PATCH v3 14/21] arm64: redefine SWAPPER_TABLE_SHIFT for use in asm code Ard Biesheuvel
2016-01-11 13:19 ` [PATCH v3 14/21] arm64: [re]define SWAPPER_TABLE_[SHIFT|SIZE] " Ard Biesheuvel
2016-01-11 13:26 ` Ard Biesheuvel
2016-01-11 13:19 ` [PATCH v3 15/21] arm64: split elf relocs into a separate header Ard Biesheuvel
2016-01-11 13:19 ` [PATCH v3 16/21] scripts/sortextable: add support for ET_DYN binaries Ard Biesheuvel
2016-01-11 13:19 ` [PATCH v3 17/21] arm64: add support for a relocatable kernel and KASLR Ard Biesheuvel
2016-01-11 13:19 ` [PATCH v3 18/21] efi: stub: implement efi_get_random_bytes() based on EFI_RNG_PROTOCOL Ard Biesheuvel
2016-01-21 15:42 ` Matt Fleming
2016-01-21 16:12 ` Ard Biesheuvel
2016-01-11 13:19 ` [PATCH v3 19/21] efi: stub: add implementation of efi_random_alloc() Ard Biesheuvel
2016-01-21 16:10 ` Matt Fleming
2016-01-21 16:16 ` Ard Biesheuvel
2016-01-11 13:19 ` [PATCH v3 20/21] efi: stub: use high allocation for converted command line Ard Biesheuvel
2016-01-21 16:20 ` Matt Fleming [this message]
2016-01-11 13:19 ` [PATCH v3 21/21] arm64: efi: invoke EFI_RNG_PROTOCOL to supply KASLR randomness Ard Biesheuvel
2016-01-21 16:31 ` Matt Fleming
2016-01-11 22:07 ` [PATCH v3 00/21] arm64: implement support for KASLR Kees Cook
2016-01-12 7:17 ` Ard Biesheuvel
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20160121162056.GG2510@codeblueprint.co.uk \
--to=matt@codeblueprint.co.uk \
--cc=linux-arm-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).