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[185.47.220.165]) by smtp.gmail.com with UTF8SMTPSA id ffacd0b85a97d-3f88de2d09fsm2240207f8f.36.2025.09.20.16.46.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 20 Sep 2025 16:46:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1758411967; x=1759016767; darn=nongnu.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=dy5hUaCFo5FGHM9/D33wmAu73UOM/NcUHqn4eoaU47Q=; b=ie3lMOvAfjRwIn2x7x5CH30bCbAbojRT49QGnIuiBDN6R89JDfIb1y9WyR3RbyVksK EuTSDYRsOJ9y6s0Jp/dVGEOIqvX/kzpxpt7wyAfao20pIn9nBto7/m3ARhwfkY8HgEIK NSR/VaY0Wde+bRI1XDQDYs74OM10oVVBF3yedB9gFq58v5+JZdUpAYCUXTssQbqCl961 0gsjyK8cyyQv6oycBAf7lUMKVHgjC0k+GLDOUpCU/ubVmih5yOW93vBwRUPG3RejdP9g /o/S5bZKWzl5QCczYKu8Am//YbHpfK/Jdg28ZjgM09YmaTH1h82KZE6NNk7ix6psk+PG hMKg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1758411967; x=1759016767; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=dy5hUaCFo5FGHM9/D33wmAu73UOM/NcUHqn4eoaU47Q=; b=C6FH6/ZNGrgwPng8HszgWoLbhbwvV3fr5dY84pQThQ4g8H+7It0rcXQKp5op64pbrx LDna+n6Yb41RTC/xAB3qYqV/KOE/QWFO6+SEKdBfc9MK4ItPTYOgpMAsvZaw5+zCcmg8 220tA9YM57fNfvaKsOwxMc06WlVmflsstWkP1SxxegsUo1xdMyUa91cvHdb+8Ed1P0LD JC93ZJ94FOSiGtsS25GageJqj/rHj1eM/zSkFaBIxx9r4ZcKbOCollSeWev5VyoqyKxc Cp5oJyE4wcYs/sKKfy7Cm/AYVE/3J5kUUhqV5vUVUG+sGcDkqAzRUH7J6iqxGLxcY06i diVQ== X-Gm-Message-State: AOJu0Yy2HlqhMtJReyoY1jtEOBSWqYxqrq+ptkHAPu0p1TjT6vQZv4um +jDHpe4U1DlwlWmM2eLTacVX3/3sR849oQpDxgalX52W3JtTmrkSQgKe X-Gm-Gg: ASbGnctDJLgldMB5IuQ9sgeFog9w0RVSfeS4xS432plhM+AHpL/k5UM/6oHHxXYFWZz F7ATYMr9GhVDf8kjGy37/7N3dH/mhSNW2fwCnY1y7uZmxpgRFgHOOO42n6TM+TX/PyvSOUktg5C pMueP0ujL56nQbAzmeQSduBkfQPjMhxFjOSQbLC9MwZU/1HayMCDJKgn7dlvDCV+mC6Kr5IrLfE 55DEq9w9RoZIVDgQVUkGYCAbQ3DvFVGHCOrzMZAlnVwBaWNIzUg/t4gCj2xUp3qUHJKvAx5D9b9 9CWjsc8uD9o/WsRqVPDyqD0Rjnr/mJFKVCmkkERAoaagL1H9HJNNc292cL+0GV2YnrI/pVBU3rs KTyKbxGS7MBEC/c5iDE8Xy9GqaMvm2v1g9FNSYhK2RbwUwTBqK3Vi X-Google-Smtp-Source: AGHT+IFrVizIbqlhOZMa6zCr5DuB+Kasv28SArjjl+eXp73b7vkt4R7lwjY0ZjI8DI6zccbAQCE5fA== X-Received: by 2002:a05:6000:25c1:b0:3e4:64b0:a776 with SMTP id ffacd0b85a97d-3ee86d6d926mr6392702f8f.52.1758411967413; Sat, 20 Sep 2025 16:46:07 -0700 (PDT) From: Filip Hejsek Date: Sun, 21 Sep 2025 01:45:32 +0200 Subject: [PATCH RFC v5 02/12] chardev: add CHR_EVENT_RESIZE MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250921-console-resize-v5-2-89e3c6727060@gmail.com> References: <20250921-console-resize-v5-0-89e3c6727060@gmail.com> In-Reply-To: <20250921-console-resize-v5-0-89e3c6727060@gmail.com> To: qemu-devel@nongnu.org Cc: =?utf-8?q?Marc-Andr=C3=A9_Lureau?= , Paolo Bonzini , "Michael S. Tsirkin" , Laurent Vivier , Amit Shah , Markus Armbruster , Eric Blake , Eduardo Habkost , Marcel Apfelbaum , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Yanan Wang , Zhao Liu , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Maximilian Immanuel Brandtner , Szymon Lukasz , Filip Hejsek X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1758411962; l=9156; i=filip.hejsek@gmail.com; s=20250912; h=from:subject:message-id; bh=LC0GCimm79Ttvp8U99b3FJ3W3o5zmCxOxIlm/KYgPyU=; b=vAwPyMucSi3/Rc2cH5bUNqvgLX49Sl+shgX0E47bJQhPXFXBstV+dN0E4aZj19mhsOmEWGbjh 37dt7tpcOKkDxpvsJXfLDJNZYcS0ZS/6RahObMuGiDguygkO5p81uQ8 X-Developer-Key: i=filip.hejsek@gmail.com; a=ed25519; pk=nakB8gEK3oi+Q/5dBTMCy/LgZL47NP60z1jeDR6O/WU= Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::42a; envelope-from=filip.hejsek@gmail.com; helo=mail-wr1-x42a.google.com 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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1758412057287116600 From: Szymon Lukasz Add a new chardev event, CHR_EVENT_RESIZE, which a backend should trigger if it detects the size of the connected terminal changed. Signed-off-by: Szymon Lukasz Signed-off-by: Filip Hejsek Reviewed-by: Daniel P. Berrang=C3=A9 --- backends/cryptodev-vhost-user.c | 1 + chardev/char.c | 1 + hw/block/vhost-user-blk.c | 1 + hw/char/terminal3270.c | 1 + hw/char/virtio-console.c | 1 + hw/ipmi/ipmi_bmc_extern.c | 1 + hw/scsi/vhost-user-scsi.c | 1 + hw/usb/ccid-card-passthru.c | 1 + hw/usb/dev-serial.c | 1 + hw/usb/redirect.c | 1 + hw/virtio/vhost-user-base.c | 1 + hw/virtio/vhost-user-scmi.c | 1 + include/chardev/char.h | 4 ++++ monitor/hmp.c | 1 + monitor/qmp.c | 1 + net/passt.c | 1 + net/vhost-user.c | 1 + 17 files changed, 20 insertions(+) diff --git a/backends/cryptodev-vhost-user.c b/backends/cryptodev-vhost-use= r.c index cb04e68b022abcc4d794df741dfc25181db660bc..9daca4b0f91e802f67cf3c7af1f= 8f26479026e1e 100644 --- a/backends/cryptodev-vhost-user.c +++ b/backends/cryptodev-vhost-user.c @@ -173,6 +173,7 @@ static void cryptodev_vhost_user_event(void *opaque, QE= MUChrEvent event) case CHR_EVENT_BREAK: case CHR_EVENT_MUX_IN: case CHR_EVENT_MUX_OUT: + case CHR_EVENT_RESIZE: /* Ignore */ break; } diff --git a/chardev/char.c b/chardev/char.c index bbebd246c3a46c848847effc775f6390b5078e14..635d19fea4fd4bd0c7f171f055f= e940f9f5ebed5 100644 --- a/chardev/char.c +++ b/chardev/char.c @@ -75,6 +75,7 @@ void qemu_chr_be_event(Chardev *s, QEMUChrEvent event) case CHR_EVENT_BREAK: case CHR_EVENT_MUX_IN: case CHR_EVENT_MUX_OUT: + case CHR_EVENT_RESIZE: /* Ignore */ break; } diff --git a/hw/block/vhost-user-blk.c b/hw/block/vhost-user-blk.c index c0cc5f6942815aa5e8d972553b3c76a623523ba4..942bc46171824017c98774d6fe7= 93059082385b6 100644 --- a/hw/block/vhost-user-blk.c +++ b/hw/block/vhost-user-blk.c @@ -412,6 +412,7 @@ static void vhost_user_blk_event(void *opaque, QEMUChrE= vent event) case CHR_EVENT_BREAK: case CHR_EVENT_MUX_IN: case CHR_EVENT_MUX_OUT: + case CHR_EVENT_RESIZE: /* Ignore */ break; } diff --git a/hw/char/terminal3270.c b/hw/char/terminal3270.c index d950c172921f91e41fad2b86a8d2a3791f6b0330..2fdf823e3bab3187fa6a4d2214e= cd991bac5f473 100644 --- a/hw/char/terminal3270.c +++ b/hw/char/terminal3270.c @@ -172,6 +172,7 @@ static void chr_event(void *opaque, QEMUChrEvent event) case CHR_EVENT_BREAK: case CHR_EVENT_MUX_IN: case CHR_EVENT_MUX_OUT: + case CHR_EVENT_RESIZE: /* Ignore */ break; } diff --git a/hw/char/virtio-console.c b/hw/char/virtio-console.c index 0932a3572b78eda866cd7680a32866f2077a91dd..881c862ce9d12027f392031bdea= 7dbe280ec5493 100644 --- a/hw/char/virtio-console.c +++ b/hw/char/virtio-console.c @@ -168,6 +168,7 @@ static void chr_event(void *opaque, QEMUChrEvent event) case CHR_EVENT_BREAK: case CHR_EVENT_MUX_IN: case CHR_EVENT_MUX_OUT: + case CHR_EVENT_RESIZE: /* Ignore */ break; } diff --git a/hw/ipmi/ipmi_bmc_extern.c b/hw/ipmi/ipmi_bmc_extern.c index 9f1ba7b2f8715daf3558fedde358c625c74da20e..b1f28c5b7db71d2cbd828227f17= 6a484629a14f7 100644 --- a/hw/ipmi/ipmi_bmc_extern.c +++ b/hw/ipmi/ipmi_bmc_extern.c @@ -436,6 +436,7 @@ static void chr_event(void *opaque, QEMUChrEvent event) case CHR_EVENT_BREAK: case CHR_EVENT_MUX_IN: case CHR_EVENT_MUX_OUT: + case CHR_EVENT_RESIZE: /* Ignore */ break; } diff --git a/hw/scsi/vhost-user-scsi.c b/hw/scsi/vhost-user-scsi.c index 25f2d894e7c827744a41302473712e7b34672536..a8d40046b714e5899262af7382a= 02611cb7f9a81 100644 --- a/hw/scsi/vhost-user-scsi.c +++ b/hw/scsi/vhost-user-scsi.c @@ -226,6 +226,7 @@ static void vhost_user_scsi_event(void *opaque, QEMUChr= Event event) case CHR_EVENT_BREAK: case CHR_EVENT_MUX_IN: case CHR_EVENT_MUX_OUT: + case CHR_EVENT_RESIZE: /* Ignore */ break; } diff --git a/hw/usb/ccid-card-passthru.c b/hw/usb/ccid-card-passthru.c index 1eea21a7337747667e9b1db97900c67b061f3729..08fec48dbe00cebef7e73053f2b= e76932175fb47 100644 --- a/hw/usb/ccid-card-passthru.c +++ b/hw/usb/ccid-card-passthru.c @@ -323,6 +323,7 @@ static void ccid_card_vscard_event(void *opaque, QEMUCh= rEvent event) case CHR_EVENT_MUX_IN: case CHR_EVENT_MUX_OUT: case CHR_EVENT_CLOSED: + case CHR_EVENT_RESIZE: /* Ignore */ break; } diff --git a/hw/usb/dev-serial.c b/hw/usb/dev-serial.c index 1c116d8b0fef7b23dd076aa6e7e81e52bb51cdbb..dd70db7705def9b93bd69cf176f= f0ed7d8cb2cad 100644 --- a/hw/usb/dev-serial.c +++ b/hw/usb/dev-serial.c @@ -576,6 +576,7 @@ static void usb_serial_event(void *opaque, QEMUChrEvent= event) break; case CHR_EVENT_MUX_IN: case CHR_EVENT_MUX_OUT: + case CHR_EVENT_RESIZE: /* Ignore */ break; } diff --git a/hw/usb/redirect.c b/hw/usb/redirect.c index f516ff42a114d014033ab9f2fce93d1ca48983a6..68c9b48f7a07558441c6d6cd3de= ccb98e833910b 100644 --- a/hw/usb/redirect.c +++ b/hw/usb/redirect.c @@ -1390,6 +1390,7 @@ static void usbredir_chardev_event(void *opaque, QEMU= ChrEvent event) case CHR_EVENT_BREAK: case CHR_EVENT_MUX_IN: case CHR_EVENT_MUX_OUT: + case CHR_EVENT_RESIZE: /* Ignore */ break; } diff --git a/hw/virtio/vhost-user-base.c b/hw/virtio/vhost-user-base.c index ff67a020b471b2edfacc6d238ffc50b3ba36afc4..57ff26e775df46135b84449f229= 29fadd33c684a 100644 --- a/hw/virtio/vhost-user-base.c +++ b/hw/virtio/vhost-user-base.c @@ -267,6 +267,7 @@ static void vub_event(void *opaque, QEMUChrEvent event) case CHR_EVENT_BREAK: case CHR_EVENT_MUX_IN: case CHR_EVENT_MUX_OUT: + case CHR_EVENT_RESIZE: /* Ignore */ break; } diff --git a/hw/virtio/vhost-user-scmi.c b/hw/virtio/vhost-user-scmi.c index f9264c4374e87cb78f8937fda852089487b477e8..180787ec6d94793d4915a26389a= e2bece231064e 100644 --- a/hw/virtio/vhost-user-scmi.c +++ b/hw/virtio/vhost-user-scmi.c @@ -214,6 +214,7 @@ static void vu_scmi_event(void *opaque, QEMUChrEvent ev= ent) case CHR_EVENT_BREAK: case CHR_EVENT_MUX_IN: case CHR_EVENT_MUX_OUT: + case CHR_EVENT_RESIZE: /* Ignore */ break; } diff --git a/include/chardev/char.h b/include/chardev/char.h index 336b2e68d099e70a9abe71ef842b160bf12ea932..45cb6349756ac8072dffab93541= 08caf90cd3565 100644 --- a/include/chardev/char.h +++ b/include/chardev/char.h @@ -22,6 +22,10 @@ typedef enum { CHR_EVENT_OPENED, /* new connection established */ CHR_EVENT_MUX_IN, /* mux-focus was set to this terminal */ CHR_EVENT_MUX_OUT, /* mux-focus will move on */ + CHR_EVENT_RESIZE, /* + * the size of the terminal connected to + * the chardev changed + */ CHR_EVENT_CLOSED /* connection closed. NOTE: currently this event * is only bound to the read port of the chardev. * Normally the read port and write port of a diff --git a/monitor/hmp.c b/monitor/hmp.c index 34e2b8f748b425e1e4446e8e64aa25b1433d1162..be623a0ef0d0ebdf091d87e4d62= 0175ad60d1566 100644 --- a/monitor/hmp.c +++ b/monitor/hmp.c @@ -1444,6 +1444,7 @@ static void monitor_event(void *opaque, QEMUChrEvent = event) break; =20 case CHR_EVENT_BREAK: + case CHR_EVENT_RESIZE: /* Ignored */ break; } diff --git a/monitor/qmp.c b/monitor/qmp.c index cb99a12d94175b395033569e8ead908d9453e759..ff7548422bc60c64e47fc4f24ad= f092fc81c70b5 100644 --- a/monitor/qmp.c +++ b/monitor/qmp.c @@ -484,6 +484,7 @@ static void monitor_qmp_event(void *opaque, QEMUChrEven= t event) case CHR_EVENT_BREAK: case CHR_EVENT_MUX_IN: case CHR_EVENT_MUX_OUT: + case CHR_EVENT_RESIZE: /* Ignore */ break; } diff --git a/net/passt.c b/net/passt.c index 32ecffb763b48af4e17b20b98537a4ffb3a6d3ea..2308e3b4d44aa410c374eb1b47e= 5081c2bef5cec 100644 --- a/net/passt.c +++ b/net/passt.c @@ -421,6 +421,7 @@ static void passt_vhost_user_event(void *opaque, QEMUCh= rEvent event) case CHR_EVENT_BREAK: case CHR_EVENT_MUX_IN: case CHR_EVENT_MUX_OUT: + case CHR_EVENT_RESIZE: /* Ignore */ break; } diff --git a/net/vhost-user.c b/net/vhost-user.c index 8b96157145a7ab719b15b1b70aadac1e88ebfd5f..1c7fdf8267d8c214dcb6ae92e05= 21747a9f59a6f 100644 --- a/net/vhost-user.c +++ b/net/vhost-user.c @@ -367,6 +367,7 @@ static void net_vhost_user_event(void *opaque, QEMUChrE= vent event) case CHR_EVENT_BREAK: case CHR_EVENT_MUX_IN: case CHR_EVENT_MUX_OUT: + case CHR_EVENT_RESIZE: /* Ignore */ break; } --=20 2.51.0