95145c25a7
WARN once in kvm_load_guest_fpu() if TIF_NEED_FPU_LOAD is observed, as that would mean that KVM is corrupting userspace's FPU by saving unknown register state into arch.user_fpu. Add a comment to explain why KVM WARNs on TIF_NEED_FPU_LOAD instead of implementing logic similar to fpu__copy(). Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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.