From: Will Deacon Date: Mon, 30 Mar 2026 14:48:39 +0000 (+0100) Subject: drivers/virt: pkvm: Add Kconfig dependency on DMA_RESTRICTED_POOL X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=61135967fa76d37883d90ccccc5a1cb73e90b94d;p=thirdparty%2Fkernel%2Flinux.git drivers/virt: pkvm: Add Kconfig dependency on DMA_RESTRICTED_POOL 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 Signed-off-by: Will Deacon Link: https://patch.msgid.link/20260330144841.26181-39-will@kernel.org Signed-off-by: Marc Zyngier --- diff --git a/drivers/virt/coco/pkvm-guest/Kconfig b/drivers/virt/coco/pkvm-guest/Kconfig index d2f344f1f98f7..928b8e1668ccc 100644 --- a/drivers/virt/coco/pkvm-guest/Kconfig +++ b/drivers/virt/coco/pkvm-guest/Kconfig @@ -1,6 +1,6 @@ config ARM_PKVM_GUEST bool "Arm pKVM protected guest driver" - depends on ARM64 + depends on ARM64 && DMA_RESTRICTED_POOL help Protected guests running under the pKVM hypervisor on arm64 are isolated from the host and must issue hypercalls to enable