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ff37a41db8
SErrors are not deliverable at EL2 when the effective value of
HCR_EL2.{TGE,AMO} = {0, 0}. This is bothersome to deal with in nested
as we need to use auxiliary pending state to track the pending vSError
since HCR_EL2.VSE has no mechanism for honoring the guest HCR. On top of
that, we have no way of making that auxiliary pending state visible in
ISR_EL1.
A defect against the architecture now allows an implementation to treat
HCR_EL2.AMO as 1 when HCR_EL2.{E2H,TGE} = {1, 0}. Let's do exactly that,
meaning SErrors are always deliverable at EL2 for the typical E2H=RES1
VM.
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Marc Zyngier <maz@kernel.org>
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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 reStructuredText 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.