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cab4098be4
Update the comment above is_xstate_managed_msr() to note that
MSR_IA32_S_CET isn't saved/restored by XSAVES/XRSTORS.
MSR_IA32_S_CET isn't part of CET_U/S state as the SDM states:
The register state used by Control-Flow Enforcement Technology (CET)
comprises the two 64-bit MSRs (IA32_U_CET and IA32_PL3_SSP) that manage
CET when CPL = 3 (CET_U state); and the three 64-bit MSRs
(IA32_PL0_SSP–IA32_PL2_SSP) that manage CET when CPL < 3 (CET_S state).
Opportunistically shift the snippet about the safety of loading certain
MSRs to the function comment for kvm_access_xstate_msr(), which is where
the MSRs are actually loaded into hardware.
Fixes:
|
||
|---|---|---|
| arch | ||
| 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 | ||
| .clippy.toml | ||
| .cocciconfig | ||
| .editorconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .pylintrc | ||
| .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.