KVM: arm64: Prevent unsupported memslot operations on protected VMs

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Protected VMs do not support deleting or moving memslots after first
run nor do they support read-only or dirty logging.

Return -EPERM to userspace if such an operation is attempted.

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/20260330144841.26181-10-will@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>

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Will Deacon 2026-03-30 15:48:10 +01:00 • committed by Marc Zyngier

parent 7250533ad2

commit f0877a1455

2 changed files with 19 additions and 0 deletions

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13

arch/arm64/kvm/mmu.c

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6

arch/arm64/kvm/pkvm.c

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