diff mbox series

[RFC,kvmtool,06/31] arm64: Check SVE capability on the VM instance

Message ID 20230127113932.166089-7-suzuki.poulose@arm.com (mailing list archive)
State New, archived
Headers show
Series arm64: Support for Arm Confidential Compute Architecture | expand

Commit Message

Suzuki K Poulose Jan. 27, 2023, 11:39 a.m. UTC 
Similar to PVtime, check the SVE capability on the VM instance
to account for the different VM types and the corresponding support.

Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
---
 arm/aarch64/kvm-cpu.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)
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Patch

diff --git a/arm/aarch64/kvm-cpu.c b/arm/aarch64/kvm-cpu.c
index c8be10b3..da809806 100644
--- a/arm/aarch64/kvm-cpu.c
+++ b/arm/aarch64/kvm-cpu.c
@@ -150,13 +150,15 @@  void kvm_cpu__select_features(struct kvm *kvm, struct kvm_vcpu_init *init)
 	}
 
 	/* Enable SVE if available */
-	if (kvm__supports_extension(kvm, KVM_CAP_ARM_SVE))
+	if (kvm__supports_vm_extension(kvm, KVM_CAP_ARM_SVE))
 		init->features[0] |= 1UL << KVM_ARM_VCPU_SVE;
 }
 
 int kvm_cpu__configure_features(struct kvm_cpu *vcpu)
 {
-	if (kvm__supports_extension(vcpu->kvm, KVM_CAP_ARM_SVE)) {
+	struct kvm *kvm = vcpu->kvm;
+
+	if (kvm__supports_vm_extension(kvm, KVM_CAP_ARM_SVE)) {
 		int feature = KVM_ARM_VCPU_SVE;
 
 		if (ioctl(vcpu->vcpu_fd, KVM_ARM_VCPU_FINALIZE, &feature)) {