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b9ecb9a997
Add guest api and guest kernel support for SEV live migration. Introduces a new hypercall to notify the host of changes to the page encryption status. If the page is encrypted then it must be migrated through the SEV firmware or a helper VM sharing the key. If page is not encrypted then it can be migrated normally by userspace. This new hypercall is invoked using paravirt_ops. Conflicts: sev_active() replaced by cc_platform_has(CC_ATTR_GUEST_MEM_ENCRYPT).
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.