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When Linux is running as the root partition under Microsoft Hypervisor (MSHV) a.k.a Hyper-V, smc is used as the conduit for smc calls. Extend arm_smccc_hypervisor_has_uuid() to support this usecase. Use arm_smccc_1_1_invoke to retrieve and use the appropriate conduit instead of supporting only hvc. Boot tested on MSHV guest, MSHV root & KVM guest. Signed-off-by: Anirudh Rayabharam (Microsoft) <anirudh@anirudhrb.com> Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Tested-by: Roman Kisel <romank@linux.microsoft.com> Reviewed-by: Roman Kisel <romank@linux.microsoft.com> Message-Id: <20250521094049.960056-1-anirudh@anirudhrb.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.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 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.