Messages in this thread | | | From | Zong Li <> | Subject | [PATCH RFC 0/8] Support KASLR for RISC-V | Date | Tue, 24 Mar 2020 15:30:45 +0800 |
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This patch series implement KASLR for RISC-V. It copies kernel image to a proper and random place, and make all harts go to the new destination.
This patch depends on the patch 'riscv: Introduce CONFIG_RELOCATABLE', but given a small change by making PAGE_OFFSET be constant, so all the memory could be available after moving kernel physical address. This patch also depends on 'Support strict kernel memory permissions for security'.
Zong Li (8): riscv/kaslr: add interface to get kaslr offset riscv/kaslr: introduce functions to clear page table riscv/kaslr: support KASLR infrastructure riscv/kaslr: randomize the kernel image offset riscv/kaslr: support sparse memory model riscv/kaslr: clear the original kernel image riscv/kaslr: add cmdline support to disable KASLR riscv/kaslr: dump out kernel offset information on panic
arch/riscv/Kconfig | 15 ++ arch/riscv/include/asm/kaslr.h | 12 + arch/riscv/include/asm/page.h | 5 + arch/riscv/kernel/Makefile | 2 + arch/riscv/kernel/head.S | 39 +++ arch/riscv/kernel/kaslr.c | 442 +++++++++++++++++++++++++++++++++ arch/riscv/kernel/setup.c | 23 ++ arch/riscv/mm/init.c | 115 ++++++++- 8 files changed, 651 insertions(+), 2 deletions(-) create mode 100644 arch/riscv/include/asm/kaslr.h create mode 100644 arch/riscv/kernel/kaslr.c
-- 2.25.1
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