[RFC kvmtool 06/31] arm64: Check SVE capability on the VM instance
From: Suzuki K Poulose <suzuki.poulose@arm.com>
Date: 2023-01-27 11:41:23
Also in:
kvm, kvmarm, linux-coco, lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
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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