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([2001:b07:6468:f312:3c1c:ffba:c624:29b8]) by smtp.gmail.com with ESMTPSA id t23sm15158953edr.71.2020.05.25.05.32.12 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 25 May 2020 05:32:12 -0700 (PDT) Subject: Re: [PATCH 06/24] armv7m: Bury unwanted "ARM,bitband-memory" devices To: Markus Armbruster , Peter Maydell References: <20200518050408.4579-1-armbru@redhat.com> <20200518050408.4579-7-armbru@redhat.com> <878shgh8be.fsf@dusky.pond.sub.org> From: Paolo Bonzini Message-ID: <3ebe626e-0373-0eee-6a54-27a88d656122@redhat.com> Date: Mon, 25 May 2020 14:32:14 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.6.0 MIME-Version: 1.0 In-Reply-To: <878shgh8be.fsf@dusky.pond.sub.org> Content-Language: en-US X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=205.139.110.61; envelope-from=pbonzini@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/25 02:40:56 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN 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: qemu-arm , "Daniel P. Berrange" , QEMU Developers , Eduardo Habkost Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 25/05/20 07:50, Markus Armbruster wrote: > Peter Maydell writes: > >> On Mon, 18 May 2020 at 06:04, Markus Armbruster wrote: >>> These devices are optional, and enabled by property "enable-bitband". >>> armv7m_instance_init() creates them unconditionally, because the >>> property has not been set then. armv7m_realize() realizes them only >>> when the property is true. Works, although it leaves unrealized >>> devices hanging around in the QOM composition tree. Affects machines >>> microbit, mps2-an505, mps2-an521, musca-a, and musca-b1. >>> >>> Bury the unwanted devices by making armv7m_realize() unparent them. >>> Visible in "info qom-tree"; here's the change for microbit: >> >> What does "bury" mean here? To me it implies "they still >> exist but we've stuck them in a hole somewhere and covered >> them up", but the qom-tree delta suggests we've actually >> really deleted them? > > We really delete them now. > > "They've been lying dead in the streets; give them a decent burial". > > Would you like me to s/Bury/Delete/? "Bury unwanted" -> "Dispose of unused"? Paolo