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4f7ff70c05
- Overhaul KVM's CPUID feature infrastructure to replace "governed" features
with per-vCPU tracking of the vCPU's capabailities for all features. Along
the way, refactor the code to make it easier to add/modify features, and
add a variety of self-documenting macro types to again simplify adding new
features and to help readers understand KVM's handling of existing features.
- Rework KVM's handling of VM-Exits during event vectoring to plug holes where
KVM unintentionally puts the vCPU into infinite loops in some scenarios,
e.g. if emulation is triggered by the exit, and to bring parity between VMX
and SVM.
- Add pending request and interrupt injection information to the kvm_exit and
kvm_entry tracepoints respectively.
- Fix a relatively benign flaw where KVM would end up redoing RDPKRU when
loading guest/host PKRU due to a refactoring of the kernel helpers that
didn't account for KVM's pre-checking of the need to do WRPKRU.
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Merge tag 'kvm-x86-misc-6.14' of https://github.com/kvm-x86/linux into HEAD
KVM x86 misc changes for 6.14:
- Overhaul KVM's CPUID feature infrastructure to track all vCPU capabilities
instead of just those where KVM needs to manage state and/or explicitly
enable the feature in hardware. Along the way, refactor the code to make
it easier to add features, and to make it more self-documenting how KVM
is handling each feature.
- Rework KVM's handling of VM-Exits during event vectoring; this plugs holes
where KVM unintentionally puts the vCPU into infinite loops in some scenarios
(e.g. if emulation is triggered by the exit), and brings parity between VMX
and SVM.
- Add pending request and interrupt injection information to the kvm_exit and
kvm_entry tracepoints respectively.
- Fix a relatively benign flaw where KVM would end up redoing RDPKRU when
loading guest/host PKRU, due to a refactoring of the kernel helpers that
didn't account for KVM's pre-checking of the need to do WRPKRU.
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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.