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7dd2157cb6
The major new feature here is nested HV KVM support. This allows the HV KVM module to load inside a radix guest on POWER9 and run radix guests underneath it. These nested guests can run in supervisor mode and don't require any additional instructions to be emulated, unlike with PR KVM, and so performance is much better than with PR KVM, and is very close to the performance of a non-nested guest. A nested hypervisor (a guest with nested guests) can be migrated to another host and will bring all its nested guests along with it. A nested guest can also itself run guests, and so on down to any desired depth of nesting. Apart from that there are a series of updates for IOMMU handling from Alexey Kardashevskiy, a "one VM per core" mode for HV KVM for security-paranoid applications, and a small fix for PR KVM. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQEcBAABCAAGBQJbvY8iAAoJEJ2a6ncsY3GfMVAH/0t1nKifIr3KTKm+zR4peOU/ DMOTp/BomPCAlIJfp/C+j56GJ9H5me+i/ykTG6ZvHFhIInaM6OvavU7xQ7LBRvl1 ltjSr21IRO5BUWhnuDCYQXPFasJ0nX+LrKIRr7vNoUioUJHk6W1e4Mfep7CNs6fD Q1p4Yg0BFCxN+ijhIOlQ49/ymbbaPFArOPh0mhipOEeY51NvCXYiUHiygu8RWnV9 sHuVFW3zQac0geUaWMAscVJ4dcvEw7GLXeY4FwWQtBPMq01LjJrECZcqy/c3Ut/2 06k7MpjZqPRneLp7aGznZCUjfQUMuP80ZRPQ8QLC/q1TODl+wPvB+hby1Q2tKvg= =zAPd -----END PGP SIGNATURE----- Merge tag 'kvm-ppc-next-4.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc into HEAD PPC KVM update for 4.20. The major new feature here is nested HV KVM support. This allows the HV KVM module to load inside a radix guest on POWER9 and run radix guests underneath it. These nested guests can run in supervisor mode and don't require any additional instructions to be emulated, unlike with PR KVM, and so performance is much better than with PR KVM, and is very close to the performance of a non-nested guest. A nested hypervisor (a guest with nested guests) can be migrated to another host and will bring all its nested guests along with it. A nested guest can also itself run guests, and so on down to any desired depth of nesting. Apart from that there are a series of updates for IOMMU handling from Alexey Kardashevskiy, a "one VM per core" mode for HV KVM for security-paranoid applications, and a small fix for PR KVM. |
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| README | ||
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.