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pKVM guests practically rely on CONFIG_DMA_RESTRICTED_POOL=y in order to establish shared memory regions with the host for virtio buffers. Make CONFIG_ARM_PKVM_GUEST depend on CONFIG_DMA_RESTRICTED_POOL to avoid the inevitable segmentation faults experience if you have the former but not the latter. Reported-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Will Deacon <will@kernel.org> Link: https://patch.msgid.link/20260330144841.26181-39-will@kernel.org Signed-off-by: Marc Zyngier <maz@kernel.org>
11 lines
375 B
Plaintext
11 lines
375 B
Plaintext
config ARM_PKVM_GUEST
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bool "Arm pKVM protected guest driver"
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depends on ARM64 && DMA_RESTRICTED_POOL
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help
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Protected guests running under the pKVM hypervisor on arm64
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are isolated from the host and must issue hypercalls to enable
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interaction with virtual devices. This driver implements
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support for probing and issuing these hypercalls.
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If unsure, say 'N'.
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