526e065dbc
Return status based on ssbd_state and __ssb_safe. If the mitigation is disabled, or the firmware isn't responding then return the expected machine state based on a whitelist of known good cores. Given a heterogeneous machine, the overall machine vulnerability defaults to safe but is reset to unsafe when we miss the whitelist and the firmware doesn't explicitly tell us the core is safe. In order to make that work we delay transitioning to vulnerable until we know the firmware isn't responding to avoid a case where we miss the whitelist, but the firmware goes ahead and reports the core is not vulnerable. If all the cores in the machine have SSBS, then __ssb_safe will remain true. Tested-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Jeremy Linton <jeremy.linton@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> |
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|---|---|---|
| Documentation | ||
| LICENSES | ||
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
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 Restructured Text 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.