linux-kernel - [PATCH v3 0/6] Fixmap support and MM cleanups

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20190212135942.105008-1-anup.patel@wdc.com>
Date:   Tue, 12 Feb 2019 14:00:06 +0000
From:   Anup Patel <Anup.Patel@....com>
To:     Palmer Dabbelt <palmer@...ive.com>,
        Albert Ou <aou@...s.berkeley.edu>
CC:     Atish Patra <Atish.Patra@....com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Christoph Hellwig <hch@...radead.org>,
        "linux-riscv@...ts.infradead.org" <linux-riscv@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Anup Patel <anup@...infault.org>
Subject: [PATCH v3 0/6] Fixmap support and MM cleanups

From: Anup Patel <anup@...infault.org>

This patchset does:
1. Moves MM related code from kernel/setup.c to mm/init.c
2. Implements compile-time fixed mappings

Using fixed mappings available, we can now get earlyprints
even without SBI calls. For example, we can use kernel
parameter "earlycon=uart8250,mmio,0x10000000" to get early
prints on QEMU virt machine without using SBI calls.

The patchset is tested on QEMU virt machine. It is based on
Linux-5.0-rc6 and can be found at riscv_fixmap_v3 branch of:
https://github.com/avpatel/linux.git.

Changes since v2:
 - Fixed commit description of PATCH6
 - Ensured commit description of all PATCH use upto 72
   characters per line

Changes since v1:
 - Use more characters per line in changelog of PATCH3
 - Removed #ifndef __ASSEMBLY__ from PATCH5
 - Use more characters per line in commets of PATCH5
 - Added PATCH6 to implement keepinitrd kernel parameter

Anup Patel (6):
  RISC-V: Move free_initrd_mem() to kernel/setup.c
  RISC-V: Setup init_mm before parse_early_param()
  RISC-V: Move setup_bootmem() to mm/init.c
  RISC-V: Move setup_vm() to mm/init.c
  RISC-V: Implement compile-time fixed mappings
  RISC-V: Implement keepinitrd kernel parameter

 arch/riscv/Kconfig               |   3 +
 arch/riscv/include/asm/fixmap.h  |  44 +++++++++++
 arch/riscv/include/asm/pgtable.h |   1 +
 arch/riscv/kernel/setup.c        | 114 ++++++----------------------
 arch/riscv/mm/init.c             | 124 ++++++++++++++++++++++++++++++-
 5 files changed, 189 insertions(+), 97 deletions(-)
 create mode 100644 arch/riscv/include/asm/fixmap.h

-- 
2.17.1