[PATCH v7 43/45] KVM: arm64: Expose KVM_ARM_VCPU_REC to user space

Steven Price
2025-02-13T16:18:02Z

Increment KVM_VCPU_MAX_FEATURES to expose the new capability to user
space.

*NOTE*: This also exposes KVM_ARM_VCPU_HAS_EL2 (as it is one less than
KVM_ARM_VCPU_REC) - so this currently depends on nested virt being
'finished' before merging. See below for discussion:

https://lore.kernel.org/r/a7011738-a084-46fa-947f-395d90b37f8b%40arm.com

Signed-off-by: Steven Price <steven.price@arm.com>
---
arch/arm64/include/asm/kvm_host.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index df9497998ed5..4aedfbfa1d6e 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -40,7 +40,7 @@

#define KVM_MAX_VCPUS VGIC_V3_MAX_CPUS

-#define KVM_VCPU_MAX_FEATURES 7
+#define KVM_VCPU_MAX_FEATURES 9
#define KVM_VCPU_VALID_FEATURES (BIT(KVM_VCPU_MAX_FEATURES) - 1)

#define KVM_REQ_SLEEP \
--
2.43.0