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0e3f3649d4Currently x86, ARM and ARM64 support generic CPU vulnerabilites, but RISC-V not, such as: # cd /sys/devices/system/cpu/vulnerabilities/ x86: # cat spec_store_bypass Mitigation: Speculative Store Bypass disabled via prctl and seccomp # cat meltdown Not affected ARM64: # cat spec_store_bypass Mitigation: Speculative Store Bypass disabled via prctl and seccomp # cat meltdown Mitigation: PTI RISC-V: # cat /sys/devices/system/cpu/vulnerabilities # ... No such file or directory As SiFive RISC-V Core IP offerings are not affected by Meltdown and Spectre, it can use the default weak function as below: # cat spec_store_bypass Not affected # cat meltdown Not affected Link: https://www.sifive.cn/blog/sifive-statement-on-meltdown-and-spectre Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com> Link: https://lore.kernel.org/r/20240703022732.2068316-1-ruanjinjie@huawei.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com> |
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| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .editorconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .rustfmt.toml | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.