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envelope-from=john.levon@nutanix.com; helo=mx0b-002c1b01.pphosted.com X-Spam_score_int: -23 X-Spam_score: -2.4 X-Spam_bar: -- X-Spam_report: (-2.4 / 5.0 requ) BAYES_00=-1.9, DKIM_INVALID=0.1, DKIM_SIGNED=0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On Mon, Sep 08, 2025 at 03:42:35PM +0100, Daniel P. Berrangé wrote: > ...but no using of -snapshot here, so copying the asset would be > required? > > Can we just use -snapshot in both cases & avoid the copying ? Yes; thanks. > > + def setup_vfio_user_pci_server(self, server_vm): > > + for data to shuttle between its socket and the virtio serial port. > > + """ > > + wait_for_console_pattern(self, 'login:', None, server_vm) > > + exec_command_and_wait_for_pattern(self, 'root', '#', None, server_vm) > > + > > + exec_command_and_wait_for_pattern(self, > > + 'gpio-pci-idio-16 -v /tmp/vfio-user.sock >/var/tmp/gpio.out 2>&1 &', > > + '#', None, server_vm) > > + # wait for libvfio-user to initialize properly > > + exec_command_and_wait_for_pattern(self, 'sleep 5', '#', None, server_vm) > > + exec_command_and_wait_for_pattern(self, > > + 'socat UNIX-CONNECT:/tmp/vfio-user.sock /dev/vport0p1,ignoreeof ' + > > + ' &', '#', None, server_vm) > > Hardcoded socket paths in /tmp ... This is fine: we're inside the server VM at this point, so can't affect anything else. > > + sock_dir = self.socket_dir() > > + socket_path = sock_dir.name + '/vfio-user.sock' > > + socket_path = '/tmp/vfio-user.sock' > > This isn't honouring the temporary dir for the socket files. Stray debug line left in, sorry. > This temp dir needs to be passed into setup_vfio_user_pci_server See above, this is a different socket to the one inside the VM. > > + pattern = re.compile(r'^gpio:') > > Use of 're' is overkill here... Sure, thanks. regards john