From 38480df564cc68f081bb38998927d164b9010995 Mon Sep 17 00:00:00 2001 From: Andrew Jones Date: Tue, 4 Aug 2020 19:05:59 +0200 Subject: KVM: arm64: pvtime: steal-time is only supported when configured Don't confuse the guest by saying steal-time is supported when it hasn't been configured by userspace and won't work. Signed-off-by: Andrew Jones Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20200804170604.42662-2-drjones@redhat.com --- arch/arm64/kvm/pvtime.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm64/kvm/pvtime.c b/arch/arm64/kvm/pvtime.c index f7b52ce1557e..c3ef4ebd6846 100644 --- a/arch/arm64/kvm/pvtime.c +++ b/arch/arm64/kvm/pvtime.c @@ -43,7 +43,8 @@ long kvm_hypercall_pv_features(struct kvm_vcpu *vcpu) switch (feature) { case ARM_SMCCC_HV_PV_TIME_FEATURES: case ARM_SMCCC_HV_PV_TIME_ST: - val = SMCCC_RET_SUCCESS; + if (vcpu->arch.steal.base != GPA_INVALID) + val = SMCCC_RET_SUCCESS; break; } -- cgit v1.2.3