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* Add new CPUs local mitigation 'k' values. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEmVzZdC2f8yLvolS4hFk2x3H8xgYFAmgcylYACgkQhFk2x3H8 xga4ag/7Bgh9TpBGVuCzKVW8dqv9N7xMo312PjIxqVcxrYN2OBMBScAkxlUDlBuj zdUnGDfc+4u7jwHdcFG2xh3eg3V7Qktsa3LhfKmRZ0tWS4FGf0Z+ffJFnjk1oUva FPUYvjAyxMZZr8XwMDEYrEE/z/iq9ucdWE8XV2bzxndDrsk17IluHCjH1ZOCDtmW f3658hNowbaHW9l6n7TPIaBGngmATMGbRLGXI6w69+MPhY7Rx3Acdbnpxez8OHvh VW2SpKJ2snYq1q/iGgArFYuVLbHde12UCZQCn1UUQjazuzBt1XjAskZYralGm8Ql /qJBcXS9R30KDSM5B2uNCtVbSc1VyHRTgG7vtLAVkhLcDVMheMsls7wTGiTB9keH fQetOh/WmhTmv7pIhFdGOBHZMRGCijgTlDbfA5EP1lM4JieY7RYhS+RK4KiNkFun WRew/II2fhOCsYgs8QtFMHIn7NOCZi+q2bc1gXaRe/kSzCQXfuJ6z0aCMK3AHVTE 2MTFvh5Pzjhrn03vvVpPsjsWnOInWpWV9peb7o+o86dcSa2V61J3topZyp4mpogV 1yTQ3hDX0X2NmpZ7tfMMZs3qmyqB3A7/k2au353vgiOwyPFf+pazLk3EWnpC8ZqB +/9dSnpLGJkfzZgCDNHWTSu8Wq2kSmtenqSXLR/wMhSBfmroVts= =SlZT -----END PGP SIGNATURE----- Merge tag 'arm64_cbpf_mitigation_2025_05_08' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 cBPF BHB mitigation from James Morse: "This adds the BHB mitigation into the code JITted for cBPF programs as these can be loaded by unprivileged users via features like seccomp. The existing mechanisms to disable the BHB mitigation will also prevent the mitigation being JITted. In addition, cBPF programs loaded by processes with the SYS_ADMIN capability are not mitigated as these could equally load an eBPF program that does the same thing. For good measure, the list of 'k' values for CPU's local mitigations is updated from the version on arm's website" * tag 'arm64_cbpf_mitigation_2025_05_08' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: proton-pack: Add new CPUs 'k' values for branch mitigation arm64: bpf: Only mitigate cBPF programs loaded by unprivileged users arm64: bpf: Add BHB mitigation to the epilogue for cBPF programs arm64: proton-pack: Expose whether the branchy loop k value arm64: proton-pack: Expose whether the platform is mitigated by firmware arm64: insn: Add support for encoding DSB |
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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.