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Merge "Update SEV trait docs to avoid misleading people"

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Zuul 2019-05-10 18:22:10 +00:00 committed by Gerrit Code Review
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doc/source/reference/index.rst
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@ -80,11 +80,7 @@ correctly by the firmware. SEV is particularly applicable to cloud
computing since it can reduce the amount of trust VMs need to place in
the hypervisor and administrator of their host system.
The ``os_traits.hw.cpu.amd.SEV`` trait can be used to indicate that a
compute host contains support for SEV not only on-CPU, but also in all
other layers of the hypervisor stack required in order to take
advantage of this feature: the kernel, QEMU, and libvirt. This trait
can be specified as required by a flavor extra spec or image property
``trait:HW_CPU_AMD_SEV=required`` in order to indicate that VMs with
that flavor or image must only be booted on SEV-capable hosts with the
SEV functionality enabled.
The ``os_traits.hw.cpu.amd.SEV`` trait is reserved in order to
indicate that a compute host contains support for SEV not only on-CPU,
but also in all other layers of the hypervisor stack required in order
to take advantage of this feature.