[RFC PATCH v7 28/28] KVM: arm64: Allow the creation of a SPE enabled VM

Alexandru Elisei alexandru.elisei at arm.com
Thu Sep 3 09:06:23 PDT 2026


Everything is in place, allow userspace to enable SPE for a virtual
machine.

Signed-off-by: Alexandru Elisei <alexandru.elisei at arm.com>
---
 arch/arm64/include/asm/kvm_host.h | 2 +-
 arch/arm64/kvm/Kconfig            | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index ff77f6ac3adf..32b30ffdcf77 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 10
+#define KVM_VCPU_MAX_FEATURES 11
 #define KVM_VCPU_VALID_FEATURES	(BIT(KVM_VCPU_MAX_FEATURES) - 1)
 
 #define KVM_REQ_SLEEP \
diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig
index 2bc8e34c538d..a285b18eb1cc 100644
--- a/arch/arm64/kvm/Kconfig
+++ b/arch/arm64/kvm/Kconfig
@@ -106,9 +106,9 @@ endif # NVHE_EL2_DEBUG
 
 
 config KVM_ARM_SPE
-	bool
+	bool "Support SPE in guest"
 	depends on KVM && ARM_SPE_PMU
-	default n
+	default y
 	help
 	  Adds support for Statistical Profiling Extension (SPE) in virtual
 	  machines.
-- 
2.43.0




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