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[91.12.98.233]) by smtp.gmail.com with ESMTPSA id 24sm1992444wmk.18.2021.04.13.01.13.40 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 13 Apr 2021 01:13:40 -0700 (PDT) Subject: Re: [PATCH v2 2/3] qom: move user_creatable_add_opts logic to vl.c and QAPIfy it To: Markus Armbruster References: <20210312173547.1283477-1-pbonzini@redhat.com> <20210312173547.1283477-3-pbonzini@redhat.com> <87im4q23v2.fsf@dusky.pond.sub.org> From: David Hildenbrand Organization: Red Hat Message-ID: <07c08cc3-f3ca-6f7a-e5f7-d2d3ee8de79e@redhat.com> Date: Tue, 13 Apr 2021 10:13:39 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.1 MIME-Version: 1.0 In-Reply-To: <87im4q23v2.fsf@dusky.pond.sub.org> Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=david@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=170.10.133.124; envelope-from=david@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 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, NICE_REPLY_A=-0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham 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: kwolf@redhat.com, Paolo Bonzini , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 13.04.21 06:41, Markus Armbruster wrote: > David Hildenbrand writes: > >> On 12.03.21 18:35, Paolo Bonzini wrote: >>> Emulators are currently using OptsVisitor (via user_creatable_add_opts) >>> to parse the -object command line option. This has one extra feature, >>> compared to keyval, which is automatic conversion of integers to lists >>> as well as support for lists as repeated options: >>> -object >>> memory-backend-ram,id=pc.ram,size=1048576000,host-nodes=0,policy=bind >>> So we cannot replace OptsVisitor with keyval right now. Still, this >>> patch moves the user_creatable_add_opts logic to vl.c since it is >>> not needed anywhere else, and makes it go through user_creatable_add_qapi. >>> In order to minimize code changes, the predicate still takes a >>> string. >>> This can be changed later to use the ObjectType QAPI enum directly. >>> >> >> Rebasing my "noreserve"[1] series on this, I get weird errors from >> QEMU when specifying the new "reserve=off" option for a >> memory-backend-ram: >> >> "Invalid parameter 'reserve'" >> >> And it looks like this is the case for any new properties. Poking >> around, I fail to find what's causing this -- or how to unlock new >> properties. What is the magic toggle to make it work? >> >> Thanks! >> >> [1] https://lkml.kernel.org/r/20210319101230.21531-1-david@redhat.com > > Wild guess: you didn't add your new properties in the QAPI schema. > > For a not-so-wild-guess, send us a git-fetch argument for your rebased > series. > Oh, there is qapi/qom.json -- maybe that does the trick. (I have mixed feelings about having to specify the same thing twice at different locations) I'll have a look if that makes it fly. -- Thanks, David / dhildenb