Message ID | 20211004160049.1338837-22-npiggin@gmail.com (mailing list archive) |
---|---|
State | Superseded |
Headers | show
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[115.64.153.41]) by smtp.gmail.com with ESMTPSA id 130sm15557223pfz.77.2021.10.04.09.01.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 04 Oct 2021 09:01:52 -0700 (PDT) From: Nicholas Piggin <npiggin@gmail.com> To: kvm-ppc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Subject: [PATCH v3 21/52] KVM: PPC: Book3S HV P9: Add kvmppc_stop_thread to match kvmppc_start_thread Date: Tue, 5 Oct 2021 02:00:18 +1000 Message-Id: <20211004160049.1338837-22-npiggin@gmail.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20211004160049.1338837-1-npiggin@gmail.com> References: <20211004160049.1338837-1-npiggin@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List <linuxppc-dev.lists.ozlabs.org> List-Unsubscribe: <https://lists.ozlabs.org/options/linuxppc-dev>, <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=unsubscribe> List-Archive: <http://lists.ozlabs.org/pipermail/linuxppc-dev/> List-Post: <mailto:linuxppc-dev@lists.ozlabs.org> List-Help: <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=help> List-Subscribe: <https://lists.ozlabs.org/listinfo/linuxppc-dev>, <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=subscribe> Cc: Nicholas Piggin <npiggin@gmail.com>, Fabiano Rosas <farosas@linux.ibm.com> Errors-To: linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" <linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org> |
Series |
KVM: PPC: Book3S HV P9: entry/exit optimisations
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expand
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Related | show |
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index 7e8ddffd61c7..0a711d929531 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -3070,6 +3070,13 @@ static void kvmppc_start_thread(struct kvm_vcpu *vcpu, struct kvmppc_vcore *vc) kvmppc_ipi_thread(cpu); } +/* Old path does this in asm */ +static void kvmppc_stop_thread(struct kvm_vcpu *vcpu) +{ + vcpu->cpu = -1; + vcpu->arch.thread_cpu = -1; +} + static void kvmppc_wait_for_nap(int n_threads) { int cpu = smp_processor_id(); @@ -4297,8 +4304,6 @@ static int kvmhv_p9_guest_entry(struct kvm_vcpu *vcpu, u64 time_limit, dec = (s32) dec; tb = mftb(); vcpu->arch.dec_expires = dec + tb; - vcpu->cpu = -1; - vcpu->arch.thread_cpu = -1; store_spr_state(vcpu); @@ -4782,6 +4787,8 @@ int kvmhv_run_single_vcpu(struct kvm_vcpu *vcpu, u64 time_limit, guest_exit_irqoff(); + kvmppc_stop_thread(vcpu); + powerpc_local_irq_pmu_restore(flags); cpumask_clear_cpu(pcpu, &kvm->arch.cpu_in_guest);