linux-kernel - [PATCH 0/3] Boot RISC-V kernel from any 4KB aligned address

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Message-ID: <20190312220752.128141-1-anup.patel@wdc.com>
Date:   Tue, 12 Mar 2019 22:08:09 +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>,
        Mike Rapoport <rppt@...ux.ibm.com>,
        "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 0/3] Boot RISC-V kernel from any 4KB aligned address

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

This patchset primarily extends initial page table setup using fixmap
to boot Linux RISC-V kernel (64bit and 32bit) from any 4KB aligned address.
We also add 32bit defconfig to allow people to try 32bit Linux RISC-V
kernel as well.

The patchset is tested on SiFive Unleashed board and QEMU virt machine.

It can also be found in riscv_setup_vm_v1 branch of
https//github.com/avpatel/linux.git

Anup Patel (3):
  RISC-V: Add separate defconfig for 32bit systems
  RISC-V: Make setup_vm() independent of GCC code model
  RISC-V: Allow booting kernel from any 4KB aligned address

 arch/riscv/configs/rv32_defconfig   |  84 +++++++
 arch/riscv/include/asm/fixmap.h     |   5 +
 arch/riscv/include/asm/pgtable-64.h |   5 +
 arch/riscv/include/asm/pgtable.h    |   6 +-
 arch/riscv/kernel/head.S            |   2 +
 arch/riscv/kernel/setup.c           |   4 +-
 arch/riscv/mm/init.c                | 370 +++++++++++++++++++++++-----
 7 files changed, 419 insertions(+), 57 deletions(-)
 create mode 100644 arch/riscv/configs/rv32_defconfig

-- 
2.17.1