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87e99d7d70
Get LA57 from the role_regs, which are initialized from the vCPU even though TDP is enabled, instead of pulling the value directly from the vCPU when computing the guest's root_level for TDP MMUs. Note, the check is inside an is_long_mode() statement, so that requirement is not lost. Use role_regs even though the MMU's role is available and arguably "better". A future commit will consolidate the guest root level logic, and it needs access to EFER.LMA, which is not tracked in the role (it can't be toggled on VM-Exit, unlike LA57). Drop is_la57_mode() as there are no remaining users, and to discourage pulling MMU state from the vCPU (in the future). No functional change intended. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210622175739.3610207-41-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.