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d555f7057e
Use the mmu_role to initialize shadow root level instead of assuming the level of KVM's shadow root (host) is the same as that of the guest root, or in the case of 32-bit non-PAE paging where KVM forces PAE paging. For nested NPT, the shadow root level cannot be adapted to L1's NPT root level and is instead always the TDP root level because NPT uses the current host CR0/CR4/EFER, e.g. 64-bit KVM can't drop into 32-bit PAE to shadow L1's NPT. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210622175739.3610207-20-seanjc@google.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.