From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nicholas Piggin Date: Wed, 11 Aug 2021 16:00:35 +0000 Subject: [PATCH v2 01/60] KVM: PPC: Book3S HV: Initialise vcpu MSR with MSR_ME Message-Id: <20210811160134.904987-2-npiggin@gmail.com> List-Id: References: <20210811160134.904987-1-npiggin@gmail.com> In-Reply-To: <20210811160134.904987-1-npiggin@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: kvm-ppc@vger.kernel.org Cc: Alexey Kardashevskiy , linuxppc-dev@lists.ozlabs.org, Nicholas Piggin It is possible to create a VCPU without setting the MSR before running it, which results in a warning in kvmhv_vcpu_entry_p9() that MSR_ME is not set. This is pretty harmless because the MSR_ME bit is added to HSRR1 before HRFID to guest, and a normal qemu guest doesn't hit it. Initialise the vcpu MSR with MSR_ME set. Reported-by: Alexey Kardashevskiy Signed-off-by: Nicholas Piggin --- arch/powerpc/kvm/book3s_hv.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index ce7ff12cfc03..2afe7a95fc9c 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -2687,6 +2687,7 @@ static int kvmppc_core_vcpu_create_hv(struct kvm_vcpu *vcpu) spin_lock_init(&vcpu->arch.vpa_update_lock); spin_lock_init(&vcpu->arch.tbacct_lock); vcpu->arch.busy_preempt = TB_NIL; + vcpu->arch.shregs.msr = MSR_ME; vcpu->arch.intr_msr = MSR_SF | MSR_ME; /* -- 2.23.0