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ANDROID: Documentation: KVM: Add some documentation for Protected KVM on arm64

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Add some initial documentation for the Protected KVM (pKVM) feature on
arm64, describing the user ABI for creating protected VMs as well as
their limitations.

Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Will Deacon <willdeacon@google.com>
Bug: 233587962
Change-Id: I152af404f24b9aba3cc9be6acd8e26afcfa4b0a5
This commit is contained in:
Will Deacon
2022-04-21 14:44:11 +01:00
committed by Will Deacon
parent 52bf3ffd0b
commit 39d08ecff2
3 changed files with 100 additions and 1 deletions
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4
Documentation/admin-guide/kernel-parameters.txt
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@@ -2396,7 +2396,9 @@
protected guests.
protected: nVHE-based mode with support for guests whose
state is kept private from the host.
state is kept private from the host. See
Documentation/virt/kvm/arm/pkvm.rst for more
information about this mode of operation.
Defaults to VHE/nVHE based on hardware support. Setting
mode to "protected" will disable kexec and hibernation