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9bc03f1df3
When running on a non-VHE system, we initialize tpidr_el2 to contain the per-CPU offset required to reach per-cpu variables. Actually, we initialize it twice: the first time as part of the EL2 initialization, by copying tpidr_el1 into its el2 counterpart, and another time by calling into __kvm_set_tpidr_el2. It turns out that the first part is wrong, as it includes the distance between the kernel mapping and the linear mapping, while EL2 only cares about the linear mapping. This was the last vestige of the first per-cpu use of tpidr_el2 that came in with SDEI. The only caller then was hyp_panic(), and its now using the pc-relative get_host_ctxt() stuff, instead of kimage addresses from the literal pool. It is not a big deal, as we override it straight away, but it is slightly confusing. In order to clear said confusion, let's set this directly as part of the hyp-init code, and drop the ad-hoc HYP helper. Reviewed-by: James Morse <james.morse@arm.com> Acked-by: Christoffer Dall <christoffer.dall@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> |
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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 Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.
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.