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([2001:b07:6468:f312:49d3:a711:c5a3:8ebf]) by smtp.gmail.com with ESMTPSA id j123sm13548711wmb.32.2019.06.10.09.18.32 (version=TLS1_3 cipher=AEAD-AES128-GCM-SHA256 bits=128/128); Mon, 10 Jun 2019 09:18:33 -0700 (PDT) To: =?UTF-8?Q?Andreas_F=c3=a4rber?= References: <5cf62de9.1c69fb81.66fc.8f4fSMTPIN_ADDED_BROKEN@mx.google.com> <1e9e4edd-f4ad-d8d6-95a2-e0aeab89510d@redhat.com> <5cf7b6e6.1c69fb81.1cdca.e260SMTPIN_ADDED_BROKEN@mx.google.com> <003b01d51f72$5e6f4160$1b4dc420$@Fursova@ispras.ru> <67806828-f666-0c9c-00fc-b520f15013d9@suse.de> <98826c5f-4a74-5364-2aef-28a10db12c20@suse.de> <39250506-f38f-c440-5728-7b970d32ab41@redhat.com> <79b821a4-7cc0-2461-7ca4-d71c3e5ee4ef@suse.de> From: Paolo Bonzini Message-ID: Date: Mon, 10 Jun 2019 18:18:31 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <79b821a4-7cc0-2461-7ca4-d71c3e5ee4ef@suse.de> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.85.128.68 Subject: Re: [Qemu-devel] qgraph 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: =?UTF-8?B?J9Cf0LDRiNCwJw==?= , qemu-devel@nongnu.org, Natalia Fursova , armbru@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 10/06/19 18:12, Andreas Färber wrote: > Am 10.06.19 um 15:52 schrieb Paolo Bonzini: >> On 10/06/19 15:28, Andreas Färber wrote: >>> So if we want a new QMP operation, the most sense would probably make >>> where-can-I-attach-type(foo) returning a list of QOM paths, showing only >>> the first free slot per bus. That would allow a more efficient lookup >>> implementation inside QEMU than needing to check each slot[n] property >>> via qom-get after discovering it with qom-list. >> >> Note that what Natalia is seeking is an introspection mechanism to be >> used _before_ creating a virtual machine though. > > QMP implied creating a virtual machine though. Yes, but you can start QEMU with -M none and just invoke QOM introspection commands. > This then goes back to the long-discussed topic of not doing recursive > realized=true when starting halted with -s but deferring that to the > cont operation. I doubt that's been implemented in the meantime? Nope. Paolo