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Mon, 27 Jul 2020 12:36:57 +0000 (UTC) Authentication-Results: garm.ovh; auth=pass (GARM-95G0018439f768-0629-4b97-9cca-d49db8edae8c,B7B50C960922AB26A7D550ED897AF9E452A9EBFF) smtp.auth=groug@kaod.org Date: Mon, 27 Jul 2020 14:36:56 +0200 From: Greg Kurz To: David Gibson Subject: Re: [PATCH v3 1/8] target/arm: Move start-powered-off property to generic CPUState Message-ID: <20200727143656.277500f0@bahia.lan> In-Reply-To: <20200723030609.GL5513@umbus.fritz.box> References: <20200723025657.644724-1-bauerman@linux.ibm.com> <20200723025657.644724-2-bauerman@linux.ibm.com> <20200723030609.GL5513@umbus.fritz.box> X-Mailer: Claws Mail 3.17.5 (GTK+ 2.24.32; x86_64-redhat-linux-gnu) MIME-Version: 1.0 Content-Type: multipart/signed; boundary="Sig_/x6A_q+XXF/OnOq118RkT5mq"; protocol="application/pgp-signature"; micalg=pgp-sha256 X-Ovh-Tracer-Id: 14592507219021371878 X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: -100 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgeduiedriedtgdehhecutefuodetggdotefrodftvfcurfhrohhfihhlvgemucfqggfjpdevjffgvefmvefgnecuuegrihhlohhuthemucehtddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenucfjughrpeffhffvuffkjghfofggtgesghdtreerredtjeenucfhrhhomhepifhrvghgucfmuhhriicuoehgrhhouhhgsehkrghougdrohhrgheqnecuggftrfgrthhtvghrnhepveegffeljeegleehheetiedutefhueehgeetteektddvieevgeeujeevgfelfeejnecukfhppedtrddtrddtrddtpdekvddrvdehfedrvddtkedrvdegkeenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhhouggvpehsmhhtphdqohhuthdphhgvlhhopehplhgrhigvrheiledtrdhhrgdrohhvhhdrnhgvthdpihhnvghtpedtrddtrddtrddtpdhmrghilhhfrhhomhepghhrohhugheskhgrohgurdhorhhgpdhrtghpthhtohepqhgvmhhuqdguvghvvghlsehnohhnghhnuhdrohhrgh Received-SPF: pass client-ip=46.105.42.102; envelope-from=groug@kaod.org; helo=4.mo69.mail-out.ovh.net X-detected-operating-system: by eggs.gnu.org: First seen = 2020/07/27 08:37:25 X-ACL-Warn: Detected OS = Linux 3.11 and newer X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , Aleksandar Rikalo , Eduardo Habkost , Aleksandar Markovic , Alex =?UTF-8?B?QmVubsOpZQ==?= , Cornelia Huck , Mark Cave-Ayland , qemu-devel@nongnu.org, Artyom Tarasenko , qemu-s390x@nongnu.org, qemu-arm@nongnu.org, qemu-ppc@nongnu.org, Aurelien Jarno , Thomas Huth , Paolo Bonzini , David Hildenbrand , Philippe =?UTF-8?B?TWF0aGlldS1EYXVkw6k=?= , Thiago Jung Bauermann , Richard Henderson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" --Sig_/x6A_q+XXF/OnOq118RkT5mq Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On Thu, 23 Jul 2020 13:06:09 +1000 David Gibson wrote: > On Wed, Jul 22, 2020 at 11:56:50PM -0300, Thiago Jung Bauermann wrote: > > There are other platforms which also have CPUs that start powered off, = so > > generalize the start-powered-off property so that it can be used by the= m. > >=20 > > Note that ARMv7MState also has a property of the same name but this pat= ch > > doesn't change it because that class isn't a subclass of CPUState so it > > wouldn't be a trivial change. > >=20 > > This change should not cause any change in behavior. > >=20 > > Suggested-by: Eduardo Habkost > > Reviewed-by: Philippe Mathieu-Daud=C3=A9 > > Signed-off-by: Thiago Jung Bauermann >=20 > Reviewed-by: David Gibson >=20 Reviewed-by: Greg Kurz > > --- > > exec.c | 1 + > > include/hw/core/cpu.h | 4 ++++ > > target/arm/cpu.c | 5 ++--- > > target/arm/cpu.h | 3 --- > > target/arm/kvm32.c | 2 +- > > target/arm/kvm64.c | 2 +- > > 6 files changed, 9 insertions(+), 8 deletions(-) > >=20 > > NB: I was only able to test that this patch builds. I wasn't able to > > run it. > >=20 > > diff --git a/exec.c b/exec.c > > index 6f381f98e2..82e82fab09 100644 > > --- a/exec.c > > +++ b/exec.c > > @@ -899,6 +899,7 @@ Property cpu_common_props[] =3D { > > DEFINE_PROP_LINK("memory", CPUState, memory, TYPE_MEMORY_REGION, > > MemoryRegion *), > > #endif > > + DEFINE_PROP_BOOL("start-powered-off", CPUState, start_powered_off,= false), > > DEFINE_PROP_END_OF_LIST(), > > }; > > =20 > > diff --git a/include/hw/core/cpu.h b/include/hw/core/cpu.h > > index 8f145733ce..9fc2696db5 100644 > > --- a/include/hw/core/cpu.h > > +++ b/include/hw/core/cpu.h > > @@ -374,6 +374,10 @@ struct CPUState { > > bool created; > > bool stop; > > bool stopped; > > + > > + /* Should CPU start in powered-off state? */ > > + bool start_powered_off; > > + > > bool unplug; > > bool crash_occurred; > > bool exit_request; > > diff --git a/target/arm/cpu.c b/target/arm/cpu.c > > index 111579554f..ec65c7653f 100644 > > --- a/target/arm/cpu.c > > +++ b/target/arm/cpu.c > > @@ -174,8 +174,8 @@ static void arm_cpu_reset(DeviceState *dev) > > env->vfp.xregs[ARM_VFP_MVFR1] =3D cpu->isar.mvfr1; > > env->vfp.xregs[ARM_VFP_MVFR2] =3D cpu->isar.mvfr2; > > =20 > > - cpu->power_state =3D cpu->start_powered_off ? PSCI_OFF : PSCI_ON; > > - s->halted =3D cpu->start_powered_off; > > + cpu->power_state =3D s->start_powered_off ? PSCI_OFF : PSCI_ON; > > + s->halted =3D s->start_powered_off; > > =20 > > if (arm_feature(env, ARM_FEATURE_IWMMXT)) { > > env->iwmmxt.cregs[ARM_IWMMXT_wCID] =3D 0x69051000 | 'Q'; > > @@ -2182,7 +2182,6 @@ static const ARMCPUInfo arm_cpus[] =3D { > > }; > > =20 > > static Property arm_cpu_properties[] =3D { > > - DEFINE_PROP_BOOL("start-powered-off", ARMCPU, start_powered_off, f= alse), > > DEFINE_PROP_UINT32("psci-conduit", ARMCPU, psci_conduit, 0), > > DEFINE_PROP_UINT64("midr", ARMCPU, midr, 0), > > DEFINE_PROP_UINT64("mp-affinity", ARMCPU, > > diff --git a/target/arm/cpu.h b/target/arm/cpu.h > > index 9e8ed423ea..a925d26996 100644 > > --- a/target/arm/cpu.h > > +++ b/target/arm/cpu.h > > @@ -810,9 +810,6 @@ struct ARMCPU { > > */ > > uint32_t psci_version; > > =20 > > - /* Should CPU start in PSCI powered-off state? */ > > - bool start_powered_off; > > - > > /* Current power state, access guarded by BQL */ > > ARMPSCIState power_state; > > =20 > > diff --git a/target/arm/kvm32.c b/target/arm/kvm32.c > > index 0af46b41c8..1f2b8f8b7a 100644 > > --- a/target/arm/kvm32.c > > +++ b/target/arm/kvm32.c > > @@ -218,7 +218,7 @@ int kvm_arch_init_vcpu(CPUState *cs) > > =20 > > /* Determine init features for this CPU */ > > memset(cpu->kvm_init_features, 0, sizeof(cpu->kvm_init_features)); > > - if (cpu->start_powered_off) { > > + if (cs->start_powered_off) { > > cpu->kvm_init_features[0] |=3D 1 << KVM_ARM_VCPU_POWER_OFF; > > } > > if (kvm_check_extension(cs->kvm_state, KVM_CAP_ARM_PSCI_0_2)) { > > diff --git a/target/arm/kvm64.c b/target/arm/kvm64.c > > index 1169237905..f8a6d905fb 100644 > > --- a/target/arm/kvm64.c > > +++ b/target/arm/kvm64.c > > @@ -775,7 +775,7 @@ int kvm_arch_init_vcpu(CPUState *cs) > > =20 > > /* Determine init features for this CPU */ > > memset(cpu->kvm_init_features, 0, sizeof(cpu->kvm_init_features)); > > - if (cpu->start_powered_off) { > > + if (cs->start_powered_off) { > > cpu->kvm_init_features[0] |=3D 1 << KVM_ARM_VCPU_POWER_OFF; > > } > > if (kvm_check_extension(cs->kvm_state, KVM_CAP_ARM_PSCI_0_2)) { > >=20 >=20 --Sig_/x6A_q+XXF/OnOq118RkT5mq Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEtIKLr5QxQM7yo0kQcdTV5YIvc9YFAl8eymgACgkQcdTV5YIv c9Y5cA//fI3S70yYaqp/nGvaYTyqKR0BdlFHwouXRg1VROwRvgb5kzZy+HBv0UE9 Ol+K1kJJw3gw0qCTrKyNkV4bQEBEmIjIRz/X51OyZ3+oaXArlpd1dW6phxyo0frF sNKo/CBS2vS+g3W523fXdCbBil0RErkTim5Db3TmJD301yUNLv4jy4Ej7hFSvUT5 EGDOwR0IR/H2HivOoO5r6+cKTUl0rHo95Q/yrgTrjIq5/QZMwCrrMnoiPOfOS+r8 xTlol5FS8dmfPTDaDtwF+9jkLjXGQozrXMKpgITY71OLR06CcmiNpnLWqqXNCak8 vIrp8UDjksfssmQ7ikA8FvVsX8I987sfySU5QA6Pt0YdahChhQkc2GFkI/Vhl2HI c8Lz53Jg7snLUw/OAtXtWugWN6NEGSaMGMvn0IPtNkV+GQmZQpbCFwoh5WxnVrmP ErFsc9dISP9VW8Jr5U5IMd7J50AarPbp5oAJEJaObFi3hkjTMhpSK/vl7q+zoePo ByHt2MusgEBDF771iyCHxU1LDByb0lSDjrDbTNzUN+i/qjjvR5udOFBEnwkMmf+M 0yDKzncIMgZMgXgY16m8bXXqTE52rBhJxAU2IijfVGid1y3SBkXrFzaHsiO0cVJR ev7a7b3qU7K5Uy1W8BJTHSU60Dz4hzWieZqKxIo0zACURTK0Ekc= =QmXv -----END PGP SIGNATURE----- --Sig_/x6A_q+XXF/OnOq118RkT5mq--