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KVM: arm64: Add some initial documentation for pKVM

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Add some initial documentation for pKVM to help people understand what
is supported, the limitations of protected VMs when compared to
non-protected VMs and also what is left to do.

Reviewed-by: Fuad Tabba <tabba@google.com>
Tested-by: Fuad Tabba <tabba@google.com>
Tested-by: Mostafa Saleh <smostafa@google.com>
Signed-off-by: Will Deacon <will@kernel.org>
Link: https://patch.msgid.link/20260330144841.26181-33-will@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
This commit is contained in:
Will Deacon
2026-03-30 15:48:33 +01:00
committed by Marc Zyngier
parent 8800dbf661
commit 287c6981f1
3 changed files with 109 additions and 2 deletions
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4
Documentation/admin-guide/kernel-parameters.txt
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@@ -3247,8 +3247,8 @@ Kernel parameters
for the host. To force nVHE on VHE hardware, add
"arm64_sw.hvhe=0 id_aa64mmfr1.vh=0" to the
command-line.
"nested" is experimental and should be used with
extreme caution.
"nested" and "protected" are experimental and should be
used with extreme caution.
kvm-arm.vgic_v3_group0_trap=
[KVM,ARM,EARLY] Trap guest accesses to GICv3 group-0