From mboxrd@z Thu Jan 1 00:00:00 1970 From: Will Deacon Subject: Re: [PATCH 5/5] kvmtool: ARM/ARM64: Provide PSCI-0.2 guest when in-kernel KVM supports it Date: Wed, 6 Aug 2014 13:56:33 +0100 Message-ID: <20140806125633.GQ25953@arm.com> References: <1407228599-25065-1-git-send-email-anup.patel@linaro.org> <1407228599-25065-6-git-send-email-anup.patel@linaro.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: "kvmarm@lists.cs.columbia.edu" , "kvm@vger.kernel.org" , "patches@apm.com" , Marc Zyngier , "penberg@kernel.org" , "christoffer.dall@linaro.org" , "pranavkumar@linaro.org" To: Anup Patel Return-path: Received: from cam-admin0.cambridge.arm.com ([217.140.96.50]:59748 "EHLO cam-admin0.cambridge.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754065AbaHFM4a (ORCPT ); Wed, 6 Aug 2014 08:56:30 -0400 Content-Disposition: inline In-Reply-To: <1407228599-25065-6-git-send-email-anup.patel@linaro.org> Sender: kvm-owner@vger.kernel.org List-ID: On Tue, Aug 05, 2014 at 09:49:59AM +0100, Anup Patel wrote: > If in-kernel KVM support PSCI-0.2 emulation then we should set > KVM_ARM_VCPU_PSCI_0_2 feature for each guest VCPU and also > provide "arm,psci-0.2","arm,psci" as PSCI compatible string. > > This patch updates kvm_cpu__arch_init() and setup_fdt() as > per above. > > Signed-off-by: Pranavkumar Sawargaonkar > Signed-off-by: Anup Patel > --- > tools/kvm/arm/fdt.c | 39 +++++++++++++++++++++++++++++++++------ > tools/kvm/arm/kvm-cpu.c | 5 +++++ > 2 files changed, 38 insertions(+), 6 deletions(-) [...] > diff --git a/tools/kvm/arm/kvm-cpu.c b/tools/kvm/arm/kvm-cpu.c > index 7478f8f..76c28a0 100644 > --- a/tools/kvm/arm/kvm-cpu.c > +++ b/tools/kvm/arm/kvm-cpu.c > @@ -74,6 +74,11 @@ struct kvm_cpu *kvm_cpu__arch_init(struct kvm *kvm, unsigned long cpu_id) > die("preferred target not available\n"); > } > > + /* Set KVM_ARM_VCPU_PSCI_0_2 if available */ > + if (kvm__supports_extension(kvm, KVM_CAP_ARM_PSCI_0_2)) { > + vcpu_init.features[0] |= (1UL << KVM_ARM_VCPU_PSCI_0_2); > + } Where is this used? Will