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c21bc068cd
GICv4.1 gives a way to get the VLPI state, which needs to map the vPE first, and after the state read, we may remap the vPE back while the VPT is not empty. So we can't assume that the VPT is empty at the first map. Besides, the optimization of PTZ is probably limited since the HW should be fairly efficient to parse the empty VPT. Let's drop the setting of PTZ altogether. Signed-off-by: Shenming Lu <lushenming@huawei.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20210322060158.1584-3-lushenming@huawei.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.