KVM: arm64: Do not allow KVM_CAP_ARM_MTE for any guest in pKVM

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Supporting MTE in pKVM introduces significant complexity to the
hypervisor at EL2, even for non-protected VMs, since it would require
EL2 to handle tag management.

For now, do not allow KVM_CAP_ARM_MTE for any VM type in protected mode.

Signed-off-by: Fuad Tabba <tabba@google.com>
Link: https://patch.msgid.link/20251211104710.151771-7-tabba@google.com
Signed-off-by: Marc Zyngier <maz@kernel.org>

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Fuad Tabba 2025-12-11 10:47:06 +00:00 • committed by Marc Zyngier

parent 43a21a0f0c

commit f4eee308c8

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arch/arm64/include/asm/kvm_pkvm.h

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