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Subject[RFC kvmtool 06/31] arm64: Check SVE capability on the VM instance
Date
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(-)

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)) {
--
2.34.1
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