[v3,02/13] char: add backend hotswap handler

Message ID	1496152683-102751-3-git-send-email-anton.nefedov@virtuozzo.com (mailing list archive)
State	New, archived
Headers	show Return-Path: <qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org> From: Anton Nefedov <anton.nefedov@virtuozzo.com> To: <qemu-devel@nongnu.org> Date: Tue, 30 May 2017 16:57:52 +0300 Message-ID: <1496152683-102751-3-git-send-email-anton.nefedov@virtuozzo.com> In-Reply-To: <1496152683-102751-1-git-send-email-anton.nefedov@virtuozzo.com> References: <1496152683-102751-1-git-send-email-anton.nefedov@virtuozzo.com> MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable SpamDiagnosticOutput: 1:99 SpamDiagnosticMetadata: NSPM X-Microsoft-Exchange-Diagnostics: 1; HE1PR0801MB1993; 7:/rIEHgFfDLyzTWo9uERMLQxA4wEDrapFiSmiZ3UP0TjhnAJGBqwecig6ZZVLkTyBfKU4MSJJzgT8CJkrV6XAMa037G+w8zxkQlajMceJMuMtuxqD6SodqiMv8bJDFKAjTa79QD21OUtX0JZ7zyfq3NjF3dPwf619679pGHolwRDp5lIfTg69FwRRp4e/7rHaKlSpJLQTarzUZyXgsZyhOpi96SxQwOiF/tqtGF2nc8vgcm2GPrhrKA62U0k2WG2Bg7Gw1ZjR5WcveM1wr1XsptnHIgYZcW3pXM6HXWzcmwMrWHl5MAqy47zLGCiPYe+aV9ekimS5Jy8Uq1UpLxHRdg==; 20:SXw/7uzWQ2PKziJlxxqDuByFhuJGYTBIJYWtGbQ45DpmnskNofdme2jhujE2BfO5EjFxhVNHDC1ACYnacnWfskNGM3kRdALOT7WumqoDvIsM2xTx1jHAx8wucs9+hTNWQp7w2Qkcj5iuoLB8qkZVL01jm8pp8ZAXKpbaWJg4JWI= Subject: [Qemu-devel] [PATCH v3 02/13] char: add backend hotswap handler Precedence: list Cc: pbonzini@redhat.com, Anton Nefedov <anton.nefedov@virtuozzo.com>, den@virtuozzo.com, marcandre.lureau@redhat.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" <qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org>

diff --git a/backends/rng-egd.c b/backends/rng-egd.c index 380b19a..0b0e945 100644 --- a/backends/rng-egd.c +++ b/backends/rng-egd.c @@ -106,7 +106,7 @@ static void rng_egd_opened(RngBackend *b, Error **errp) /* FIXME we should resubmit pending requests when the CDS reconnects. */ qemu_chr_fe_set_handlers(&s->chr, rng_egd_chr_can_read, - rng_egd_chr_read, NULL, s, NULL, true); + rng_egd_chr_read, NULL, NULL, s, NULL, true); } static void rng_egd_set_chardev(Object *obj, const char *value, Error **errp) diff --git a/chardev/char-mux.c b/chardev/char-mux.c index 37d42c6..5849ea5 100644 --- a/chardev/char-mux.c +++ b/chardev/char-mux.c @@ -278,6 +278,7 @@ void mux_chr_set_handlers(Chardev *chr, GMainContext *context) mux_chr_can_read, mux_chr_read, mux_chr_event, + NULL, chr, context, true); } diff --git a/chardev/char.c b/chardev/char.c index 3a0f543..1b097b3 100644 --- a/chardev/char.c +++ b/chardev/char.c @@ -522,7 +522,7 @@ void qemu_chr_fe_deinit(CharBackend *b) assert(b); if (b->chr) { - qemu_chr_fe_set_handlers(b, NULL, NULL, NULL, NULL, NULL, true); + qemu_chr_fe_set_handlers(b, NULL, NULL, NULL, NULL, NULL, NULL, true); if (b->chr->be == b) { b->chr->be = NULL; } @@ -538,6 +538,7 @@ void qemu_chr_fe_set_handlers(CharBackend *b, IOCanReadHandler *fd_can_read, IOReadHandler *fd_read, IOEventHandler *fd_event, + BackendChangeHandler *be_change, void *opaque, GMainContext *context, bool set_open) @@ -561,6 +562,7 @@ void qemu_chr_fe_set_handlers(CharBackend *b, b->chr_can_read = fd_can_read; b->chr_read = fd_read; b->chr_event = fd_event; + b->chr_be_change = be_change; b->opaque = opaque; if (cc->chr_update_read_handler) { cc->chr_update_read_handler(s, context); diff --git a/gdbstub.c b/gdbstub.c index 86eed4f..1ac0489 100644 --- a/gdbstub.c +++ b/gdbstub.c @@ -2013,7 +2013,7 @@ int gdbserver_start(const char *device) if (chr) { qemu_chr_fe_init(&s->chr, chr, &error_abort); qemu_chr_fe_set_handlers(&s->chr, gdb_chr_can_receive, gdb_chr_receive, - gdb_chr_event, NULL, NULL, true); + gdb_chr_event, NULL, NULL, NULL, true); } s->state = chr ? RS_IDLE : RS_INACTIVE; s->mon_chr = mon_chr; diff --git a/hw/arm/pxa2xx.c b/hw/arm/pxa2xx.c index eea551d..3e51882 100644 --- a/hw/arm/pxa2xx.c +++ b/hw/arm/pxa2xx.c @@ -1970,7 +1970,8 @@ static void pxa2xx_fir_realize(DeviceState *dev, Error **errp) PXA2xxFIrState *s = PXA2XX_FIR(dev); qemu_chr_fe_set_handlers(&s->chr, pxa2xx_fir_is_empty, - pxa2xx_fir_rx, pxa2xx_fir_event, s, NULL, true); + pxa2xx_fir_rx, pxa2xx_fir_event, NULL, s, NULL, + true); } static bool pxa2xx_fir_vmstate_validate(void *opaque, int version_id) diff --git a/hw/arm/strongarm.c b/hw/arm/strongarm.c index 3311cc3..bec093d 100644 --- a/hw/arm/strongarm.c +++ b/hw/arm/strongarm.c @@ -1246,7 +1246,7 @@ static void strongarm_uart_realize(DeviceState *dev, Error **errp) strongarm_uart_can_receive, strongarm_uart_receive, strongarm_uart_event, - s, NULL, true); + NULL, s, NULL, true); } static void strongarm_uart_reset(DeviceState *dev) diff --git a/hw/char/bcm2835_aux.c b/hw/char/bcm2835_aux.c index 4d46ad6..370dc7e 100644 --- a/hw/char/bcm2835_aux.c +++ b/hw/char/bcm2835_aux.c @@ -279,7 +279,7 @@ static void bcm2835_aux_realize(DeviceState *dev, Error **errp) BCM2835AuxState *s = BCM2835_AUX(dev); qemu_chr_fe_set_handlers(&s->chr, bcm2835_aux_can_receive, - bcm2835_aux_receive, NULL, s, NULL, true); + bcm2835_aux_receive, NULL, NULL, s, NULL, true); } static Property bcm2835_aux_props[] = { diff --git a/hw/char/cadence_uart.c b/hw/char/cadence_uart.c index 4dcee57..71867b3 100644 --- a/hw/char/cadence_uart.c +++ b/hw/char/cadence_uart.c @@ -484,7 +484,7 @@ static void cadence_uart_realize(DeviceState *dev, Error **errp) fifo_trigger_update, s); qemu_chr_fe_set_handlers(&s->chr, uart_can_receive, uart_receive, - uart_event, s, NULL, true); + uart_event, NULL, s, NULL, true); } static void cadence_uart_init(Object *obj) diff --git a/hw/char/debugcon.c b/hw/char/debugcon.c index 80dce07..6d95297 100644 --- a/hw/char/debugcon.c +++ b/hw/char/debugcon.c @@ -92,7 +92,7 @@ static void debugcon_realize_core(DebugconState *s, Error **errp) return; } - qemu_chr_fe_set_handlers(&s->chr, NULL, NULL, NULL, s, NULL, true); + qemu_chr_fe_set_handlers(&s->chr, NULL, NULL, NULL, NULL, s, NULL, true); } static void debugcon_isa_realizefn(DeviceState *dev, Error **errp) diff --git a/hw/char/digic-uart.c b/hw/char/digic-uart.c index 029f5bb..2d373dc 100644 --- a/hw/char/digic-uart.c +++ b/hw/char/digic-uart.c @@ -146,7 +146,7 @@ static void digic_uart_realize(DeviceState *dev, Error **errp) DigicUartState *s = DIGIC_UART(dev); qemu_chr_fe_set_handlers(&s->chr, uart_can_rx, uart_rx, - uart_event, s, NULL, true); + uart_event, NULL, s, NULL, true); } static void digic_uart_init(Object *obj) diff --git a/hw/char/escc.c b/hw/char/escc.c index 9228091..aa882b6 100644 --- a/hw/char/escc.c +++ b/hw/char/escc.c @@ -1015,7 +1015,7 @@ static void escc_realize(DeviceState *dev, Error **errp) if (qemu_chr_fe_get_driver(&s->chn[i].chr)) { s->chn[i].clock = s->frequency / 2; qemu_chr_fe_set_handlers(&s->chn[i].chr, serial_can_receive, - serial_receive1, serial_event, + serial_receive1, serial_event, NULL, &s->chn[i], NULL, true); } } diff --git a/hw/char/etraxfs_ser.c b/hw/char/etraxfs_ser.c index 5438387..4abd382 100644 --- a/hw/char/etraxfs_ser.c +++ b/hw/char/etraxfs_ser.c @@ -233,7 +233,7 @@ static void etraxfs_ser_realize(DeviceState *dev, Error **errp) qemu_chr_fe_set_handlers(&s->chr, serial_can_receive, serial_receive, - serial_event, s, NULL, true); + serial_event, NULL, s, NULL, true); } static void etraxfs_ser_class_init(ObjectClass *klass, void *data) diff --git a/hw/char/exynos4210_uart.c b/hw/char/exynos4210_uart.c index bff706a..7ef4ea5 100644 --- a/hw/char/exynos4210_uart.c +++ b/hw/char/exynos4210_uart.c @@ -644,7 +644,7 @@ static void exynos4210_uart_realize(DeviceState *dev, Error **errp) qemu_chr_fe_set_handlers(&s->chr, exynos4210_uart_can_receive, exynos4210_uart_receive, exynos4210_uart_event, - s, NULL, true); + NULL, s, NULL, true); } static Property exynos4210_uart_properties[] = { diff --git a/hw/char/grlib_apbuart.c b/hw/char/grlib_apbuart.c index db686e6..610a317 100644 --- a/hw/char/grlib_apbuart.c +++ b/hw/char/grlib_apbuart.c @@ -247,7 +247,7 @@ static int grlib_apbuart_init(SysBusDevice *dev) grlib_apbuart_can_receive, grlib_apbuart_receive, grlib_apbuart_event, - uart, NULL, true); + NULL, uart, NULL, true); sysbus_init_irq(dev, &uart->irq); diff --git a/hw/char/imx_serial.c b/hw/char/imx_serial.c index 52e67f8..b66396f 100644 --- a/hw/char/imx_serial.c +++ b/hw/char/imx_serial.c @@ -316,7 +316,7 @@ static void imx_serial_realize(DeviceState *dev, Error **errp) DPRINTF("char dev for uart: %p\n", qemu_chr_fe_get_driver(&s->chr)); qemu_chr_fe_set_handlers(&s->chr, imx_can_receive, imx_receive, - imx_event, s, NULL, true); + imx_event, NULL, s, NULL, true); } static void imx_serial_init(Object *obj) diff --git a/hw/char/ipoctal232.c b/hw/char/ipoctal232.c index 93929c2..734e42c 100644 --- a/hw/char/ipoctal232.c +++ b/hw/char/ipoctal232.c @@ -545,7 +545,7 @@ static void ipoctal_realize(DeviceState *dev, Error **errp) if (qemu_chr_fe_get_driver(&ch->dev)) { qemu_chr_fe_set_handlers(&ch->dev, hostdev_can_receive, hostdev_receive, hostdev_event, - ch, NULL, true); + NULL, ch, NULL, true); DPRINTF("Redirecting channel %u to %s\n", i, ch->dev->label); } else { DPRINTF("Could not redirect channel %u, no chardev set\n", i); diff --git a/hw/char/lm32_juart.c b/hw/char/lm32_juart.c index f8c1e0d..b3a5351 100644 --- a/hw/char/lm32_juart.c +++ b/hw/char/lm32_juart.c @@ -119,7 +119,7 @@ static void lm32_juart_realize(DeviceState *dev, Error **errp) LM32JuartState *s = LM32_JUART(dev); qemu_chr_fe_set_handlers(&s->chr, juart_can_rx, juart_rx, - juart_event, s, NULL, true); + juart_event, NULL, s, NULL, true); } static const VMStateDescription vmstate_lm32_juart = { diff --git a/hw/char/lm32_uart.c b/hw/char/lm32_uart.c index 7f3597c..3a6dbf8 100644 --- a/hw/char/lm32_uart.c +++ b/hw/char/lm32_uart.c @@ -266,7 +266,7 @@ static void lm32_uart_realize(DeviceState *dev, Error **errp) LM32UartState *s = LM32_UART(dev); qemu_chr_fe_set_handlers(&s->chr, uart_can_rx, uart_rx, - uart_event, s, NULL, true); + uart_event, NULL, s, NULL, true); } static const VMStateDescription vmstate_lm32_uart = { diff --git a/hw/char/mcf_uart.c b/hw/char/mcf_uart.c index e69672f..7f3cd5a 100644 --- a/hw/char/mcf_uart.c +++ b/hw/char/mcf_uart.c @@ -305,7 +305,7 @@ static void mcf_uart_realize(DeviceState *dev, Error **errp) mcf_uart_state *s = MCF_UART(dev); qemu_chr_fe_set_handlers(&s->chr, mcf_uart_can_receive, mcf_uart_receive, - mcf_uart_event, s, NULL, true); + mcf_uart_event, NULL, s, NULL, true); } static Property mcf_uart_properties[] = { diff --git a/hw/char/milkymist-uart.c b/hw/char/milkymist-uart.c index ae8e2f3..523959a 100644 --- a/hw/char/milkymist-uart.c +++ b/hw/char/milkymist-uart.c @@ -199,7 +199,7 @@ static void milkymist_uart_realize(DeviceState *dev, Error **errp) MilkymistUartState *s = MILKYMIST_UART(dev); qemu_chr_fe_set_handlers(&s->chr, uart_can_rx, uart_rx, - uart_event, s, NULL, true); + uart_event, NULL, s, NULL, true); } static void milkymist_uart_init(Object *obj) diff --git a/hw/char/pl011.c b/hw/char/pl011.c index 24ea973..c38f60a 100644 --- a/hw/char/pl011.c +++ b/hw/char/pl011.c @@ -329,7 +329,7 @@ static void pl011_realize(DeviceState *dev, Error **errp) PL011State *s = PL011(dev); qemu_chr_fe_set_handlers(&s->chr, pl011_can_receive, pl011_receive, - pl011_event, s, NULL, true); + pl011_event, NULL, s, NULL, true); } static void pl011_class_init(ObjectClass *oc, void *data) diff --git a/hw/char/sclpconsole-lm.c b/hw/char/sclpconsole-lm.c index 07d6ebd..ed1e2c5 100644 --- a/hw/char/sclpconsole-lm.c +++ b/hw/char/sclpconsole-lm.c @@ -313,7 +313,7 @@ static int console_init(SCLPEvent *event) console_available = true; qemu_chr_fe_set_handlers(&scon->chr, chr_can_read, - chr_read, NULL, scon, NULL, true); + chr_read, NULL, NULL, scon, NULL, true); return 0; } diff --git a/hw/char/sclpconsole.c b/hw/char/sclpconsole.c index b78f240..9a65010 100644 --- a/hw/char/sclpconsole.c +++ b/hw/char/sclpconsole.c @@ -228,7 +228,7 @@ static int console_init(SCLPEvent *event) } console_available = true; qemu_chr_fe_set_handlers(&scon->chr, chr_can_read, - chr_read, NULL, scon, NULL, true); + chr_read, NULL, NULL, scon, NULL, true); return 0; } diff --git a/hw/char/serial.c b/hw/char/serial.c index 03d890c..d8d34d0 100644 --- a/hw/char/serial.c +++ b/hw/char/serial.c @@ -897,7 +897,7 @@ void serial_realize_core(SerialState *s, Error **errp) qemu_register_reset(serial_reset, s); qemu_chr_fe_set_handlers(&s->chr, serial_can_receive1, serial_receive1, - serial_event, s, NULL, true); + serial_event, NULL, s, NULL, true); fifo8_create(&s->recv_fifo, UART_FIFO_LENGTH); fifo8_create(&s->xmit_fifo, UART_FIFO_LENGTH); serial_reset(s); diff --git a/hw/char/sh_serial.c b/hw/char/sh_serial.c index 303eb0a..c352337 100644 --- a/hw/char/sh_serial.c +++ b/hw/char/sh_serial.c @@ -400,7 +400,7 @@ void sh_serial_init(MemoryRegion *sysmem, qemu_chr_fe_init(&s->chr, chr, &error_abort); qemu_chr_fe_set_handlers(&s->chr, sh_serial_can_receive1, sh_serial_receive1, - sh_serial_event, s, NULL, true); + sh_serial_event, NULL, s, NULL, true); } s->eri = eri_source; diff --git a/hw/char/spapr_vty.c b/hw/char/spapr_vty.c index e30c8da..9cdc0e0 100644 --- a/hw/char/spapr_vty.c +++ b/hw/char/spapr_vty.c @@ -84,7 +84,7 @@ static void spapr_vty_realize(VIOsPAPRDevice *sdev, Error **errp) } qemu_chr_fe_set_handlers(&dev->chardev, vty_can_receive, - vty_receive, NULL, dev, NULL, true); + vty_receive, NULL, NULL, dev, NULL, true); } /* Forward declaration */ diff --git a/hw/char/stm32f2xx_usart.c b/hw/char/stm32f2xx_usart.c index 59872e6..268e435 100644 --- a/hw/char/stm32f2xx_usart.c +++ b/hw/char/stm32f2xx_usart.c @@ -207,7 +207,8 @@ static void stm32f2xx_usart_realize(DeviceState *dev, Error **errp) STM32F2XXUsartState *s = STM32F2XX_USART(dev); qemu_chr_fe_set_handlers(&s->chr, stm32f2xx_usart_can_receive, - stm32f2xx_usart_receive, NULL, s, NULL, true); + stm32f2xx_usart_receive, NULL, NULL, + s, NULL, true); } static void stm32f2xx_usart_class_init(ObjectClass *klass, void *data) diff --git a/hw/char/terminal3270.c b/hw/char/terminal3270.c index b2dda01..943a0f3 100644 --- a/hw/char/terminal3270.c +++ b/hw/char/terminal3270.c @@ -179,7 +179,7 @@ static void terminal_init(EmulatedCcw3270Device *dev, Error **errp) } terminal_available = true; qemu_chr_fe_set_handlers(&t->chr, terminal_can_read, - terminal_read, chr_event, t, NULL, true); + terminal_read, chr_event, NULL, t, NULL, true); } static int read_payload_3270(EmulatedCcw3270Device *dev, uint32_t cda, diff --git a/hw/char/virtio-console.c b/hw/char/virtio-console.c index 798d9b6..cf7331d 100644 --- a/hw/char/virtio-console.c +++ b/hw/char/virtio-console.c @@ -188,11 +188,11 @@ static void virtconsole_realize(DeviceState *dev, Error **errp) */ if (k->is_console) { qemu_chr_fe_set_handlers(&vcon->chr, chr_can_read, chr_read, - NULL, vcon, NULL, true); + NULL, NULL, vcon, NULL, true); virtio_serial_open(port); } else { qemu_chr_fe_set_handlers(&vcon->chr, chr_can_read, chr_read, - chr_event, vcon, NULL, false); + chr_event, NULL, vcon, NULL, false); } } } diff --git a/hw/char/xen_console.c b/hw/char/xen_console.c index c01f410..cb7975f 100644 --- a/hw/char/xen_console.c +++ b/hw/char/xen_console.c @@ -246,7 +246,7 @@ static int con_initialise(struct XenDevice *xendev) xen_be_bind_evtchn(&con->xendev); qemu_chr_fe_set_handlers(&con->chr, xencons_can_receive, - xencons_receive, NULL, con, NULL, true); + xencons_receive, NULL, NULL, con, NULL, true); xen_pv_printf(xendev, 1, "ring mfn %d, remote port %d, local port %d, limit %zd\n", diff --git a/hw/char/xilinx_uartlite.c b/hw/char/xilinx_uartlite.c index 37d313b..2568302 100644 --- a/hw/char/xilinx_uartlite.c +++ b/hw/char/xilinx_uartlite.c @@ -212,7 +212,7 @@ static void xilinx_uartlite_realize(DeviceState *dev, Error **errp) XilinxUARTLite *s = XILINX_UARTLITE(dev); qemu_chr_fe_set_handlers(&s->chr, uart_can_rx, uart_rx, - uart_event, s, NULL, true); + uart_event, NULL, s, NULL, true); } static void xilinx_uartlite_init(Object *obj) diff --git a/hw/ipmi/ipmi_bmc_extern.c b/hw/ipmi/ipmi_bmc_extern.c index e8e3d25..6f2339d 100644 --- a/hw/ipmi/ipmi_bmc_extern.c +++ b/hw/ipmi/ipmi_bmc_extern.c @@ -453,7 +453,7 @@ static void ipmi_bmc_extern_realize(DeviceState *dev, Error **errp) } qemu_chr_fe_set_handlers(&ibe->chr, can_receive, receive, - chr_event, ibe, NULL, true); + chr_event, NULL, ibe, NULL, true); } static int ipmi_bmc_extern_post_migrate(void *opaque, int version_id) diff --git a/hw/mips/boston.c b/hw/mips/boston.c index 83f7b82..a57c860 100644 --- a/hw/mips/boston.c +++ b/hw/mips/boston.c @@ -533,7 +533,7 @@ static void boston_mach_init(MachineState *machine) chr = qemu_chr_new("lcd", "vc:320x240"); qemu_chr_fe_init(&s->lcd_display, chr, NULL); qemu_chr_fe_set_handlers(&s->lcd_display, NULL, NULL, - boston_lcd_event, s, NULL, true); + boston_lcd_event, NULL, s, NULL, true); ahci = pci_create_simple_multifunction(&PCI_BRIDGE(&pcie2->root)->sec_bus, PCI_DEVFN(0, 0), diff --git a/hw/mips/mips_malta.c b/hw/mips/mips_malta.c index 5dd177e..96dce76 100644 --- a/hw/mips/mips_malta.c +++ b/hw/mips/mips_malta.c @@ -571,7 +571,7 @@ static MaltaFPGAState *malta_fpga_init(MemoryRegion *address_space, chr = qemu_chr_new("fpga", "vc:320x200"); qemu_chr_fe_init(&s->display, chr, NULL); qemu_chr_fe_set_handlers(&s->display, NULL, NULL, - malta_fgpa_display_event, s, NULL, true); + malta_fgpa_display_event, NULL, s, NULL, true); s->uart = serial_mm_init(address_space, base + 0x900, 3, uart_irq, 230400, uart_chr, DEVICE_NATIVE_ENDIAN); diff --git a/hw/misc/ivshmem.c b/hw/misc/ivshmem.c index 475e36a..e2dece8 100644 --- a/hw/misc/ivshmem.c +++ b/hw/misc/ivshmem.c @@ -896,7 +896,7 @@ static void ivshmem_common_realize(PCIDevice *dev, Error **errp) } qemu_chr_fe_set_handlers(&s->server_chr, ivshmem_can_receive, - ivshmem_read, NULL, s, NULL, true); + ivshmem_read, NULL, NULL, s, NULL, true); if (ivshmem_setup_interrupts(s, errp) < 0) { error_prepend(errp, "Failed to initialize interrupts: "); diff --git a/hw/usb/ccid-card-passthru.c b/hw/usb/ccid-card-passthru.c index a41b0d6..9ace5ac 100644 --- a/hw/usb/ccid-card-passthru.c +++ b/hw/usb/ccid-card-passthru.c @@ -351,7 +351,7 @@ static int passthru_initfn(CCIDCardState *base) qemu_chr_fe_set_handlers(&card->cs, ccid_card_vscard_can_read, ccid_card_vscard_read, - ccid_card_vscard_event, card, NULL, true); + ccid_card_vscard_event, NULL, card, NULL, true); ccid_card_vscard_send_init(card); } else { error_report("missing chardev"); diff --git a/hw/usb/dev-serial.c b/hw/usb/dev-serial.c index 83a4f0e..e6b2c7c 100644 --- a/hw/usb/dev-serial.c +++ b/hw/usb/dev-serial.c @@ -501,7 +501,7 @@ static void usb_serial_realize(USBDevice *dev, Error **errp) } qemu_chr_fe_set_handlers(&s->cs, usb_serial_can_read, usb_serial_read, - usb_serial_event, s, NULL, true); + usb_serial_event, NULL, s, NULL, true); usb_serial_handle_reset(dev); if (chr->be_open && !dev->attached) { diff --git a/hw/usb/redirect.c b/hw/usb/redirect.c index ad5ef78..1e9bf69 100644 --- a/hw/usb/redirect.c +++ b/hw/usb/redirect.c @@ -1399,7 +1399,7 @@ static void usbredir_realize(USBDevice *udev, Error **errp) /* Let the backend know we are ready */ qemu_chr_fe_set_handlers(&dev->cs, usbredir_chardev_can_read, usbredir_chardev_read, usbredir_chardev_event, - dev, NULL, true); + NULL, dev, NULL, true); dev->vmstate = qemu_add_vm_change_state_handler(usbredir_vm_state_change, dev); diff --git a/include/sysemu/char.h b/include/sysemu/char.h index fffc0f4..9f8df07 100644 --- a/include/sysemu/char.h +++ b/include/sysemu/char.h @@ -64,6 +64,7 @@ struct ParallelIOArg { #define CHR_TIOCM_RTS 0x004 typedef void IOEventHandler(void *opaque, int event); +typedef int BackendChangeHandler(void *opaque); typedef enum { /* Whether the chardev peer is able to close and @@ -87,6 +88,7 @@ typedef struct CharBackend { IOEventHandler *chr_event; IOCanReadHandler *chr_can_read; IOReadHandler *chr_read; + BackendChangeHandler *chr_be_change; void *opaque; int tag; int fe_open; @@ -399,6 +401,8 @@ void qemu_chr_fe_deinit(CharBackend *b); * receive * @fd_read: callback to receive data from char * @fd_event: event callback + * @be_change: backend change callback; passing NULL means hot backend change + * is not supported and will not be attempted * @opaque: an opaque pointer for the callbacks * @context: a main loop context or NULL for the default * @set_open: whether to call qemu_chr_fe_set_open() implicitely when @@ -413,6 +417,7 @@ void qemu_chr_fe_set_handlers(CharBackend *b, IOCanReadHandler *fd_can_read, IOReadHandler *fd_read, IOEventHandler *fd_event, + BackendChangeHandler *be_change, void *opaque, GMainContext *context, bool set_open); diff --git a/monitor.c b/monitor.c index baa73c9..41bf2b8 100644 --- a/monitor.c +++ b/monitor.c @@ -4087,12 +4087,12 @@ void monitor_init(Chardev *chr, int flags) if (monitor_is_qmp(mon)) { qemu_chr_fe_set_handlers(&mon->chr, monitor_can_read, monitor_qmp_read, - monitor_qmp_event, mon, NULL, true); + monitor_qmp_event, NULL, mon, NULL, true); qemu_chr_fe_set_echo(&mon->chr, true); json_message_parser_init(&mon->qmp.parser, handle_qmp_command); } else { qemu_chr_fe_set_handlers(&mon->chr, monitor_can_read, monitor_read, - monitor_event, mon, NULL, true); + monitor_event, NULL, mon, NULL, true); } qemu_mutex_lock(&monitor_lock); diff --git a/net/colo-compare.c b/net/colo-compare.c index 2639c7f..623f08c 100644 --- a/net/colo-compare.c +++ b/net/colo-compare.c @@ -543,7 +543,7 @@ static void compare_pri_chr_in(void *opaque, const uint8_t *buf, int size) ret = net_fill_rstate(&s->pri_rs, buf, size); if (ret == -1) { - qemu_chr_fe_set_handlers(&s->chr_pri_in, NULL, NULL, NULL, + qemu_chr_fe_set_handlers(&s->chr_pri_in, NULL, NULL, NULL, NULL, NULL, NULL, true); error_report("colo-compare primary_in error"); } @@ -560,7 +560,7 @@ static void compare_sec_chr_in(void *opaque, const uint8_t *buf, int size) ret = net_fill_rstate(&s->sec_rs, buf, size); if (ret == -1) { - qemu_chr_fe_set_handlers(&s->chr_sec_in, NULL, NULL, NULL, + qemu_chr_fe_set_handlers(&s->chr_sec_in, NULL, NULL, NULL, NULL, NULL, NULL, true); error_report("colo-compare secondary_in error"); } @@ -588,9 +588,11 @@ static void *colo_compare_thread(void *opaque) s->worker_context = g_main_context_new(); qemu_chr_fe_set_handlers(&s->chr_pri_in, compare_chr_can_read, - compare_pri_chr_in, NULL, s, s->worker_context, true); + compare_pri_chr_in, NULL, NULL, + s, s->worker_context, true); qemu_chr_fe_set_handlers(&s->chr_sec_in, compare_chr_can_read, - compare_sec_chr_in, NULL, s, s->worker_context, true); + compare_sec_chr_in, NULL, NULL, + s, s->worker_context, true); s->compare_loop = g_main_loop_new(s->worker_context, FALSE); @@ -801,9 +803,9 @@ static void colo_compare_finalize(Object *obj) { CompareState *s = COLO_COMPARE(obj); - qemu_chr_fe_set_handlers(&s->chr_pri_in, NULL, NULL, NULL, NULL, + qemu_chr_fe_set_handlers(&s->chr_pri_in, NULL, NULL, NULL, NULL, NULL, s->worker_context, true); - qemu_chr_fe_set_handlers(&s->chr_sec_in, NULL, NULL, NULL, NULL, + qemu_chr_fe_set_handlers(&s->chr_sec_in, NULL, NULL, NULL, NULL, NULL, s->worker_context, true); qemu_chr_fe_deinit(&s->chr_out); diff --git a/net/filter-mirror.c b/net/filter-mirror.c index 8b1b069..82bb157 100644 --- a/net/filter-mirror.c +++ b/net/filter-mirror.c @@ -112,7 +112,7 @@ static void redirector_chr_read(void *opaque, const uint8_t *buf, int size) if (ret == -1) { qemu_chr_fe_set_handlers(&s->chr_in, NULL, NULL, NULL, - NULL, NULL, true); + NULL, NULL, NULL, true); } } @@ -124,7 +124,7 @@ static void redirector_chr_event(void *opaque, int event) switch (event) { case CHR_EVENT_CLOSED: qemu_chr_fe_set_handlers(&s->chr_in, NULL, NULL, NULL, - NULL, NULL, true); + NULL, NULL, NULL, true); break; default: break; @@ -245,7 +245,7 @@ static void filter_redirector_setup(NetFilterState *nf, Error **errp) qemu_chr_fe_set_handlers(&s->chr_in, redirector_chr_can_read, redirector_chr_read, redirector_chr_event, - nf, NULL, true); + NULL, nf, NULL, true); } if (s->outdev) { diff --git a/net/slirp.c b/net/slirp.c index c705a60..6cbae5a 100644 --- a/net/slirp.c +++ b/net/slirp.c @@ -778,7 +778,7 @@ static int slirp_guestfwd(SlirpState *s, const char *config_str, fwd->slirp = s->slirp; qemu_chr_fe_set_handlers(&fwd->hd, guestfwd_can_read, guestfwd_read, - NULL, fwd, NULL, true); + NULL, NULL, fwd, NULL, true); } return 0; diff --git a/net/vhost-user.c b/net/vhost-user.c index 00a0c1c..d090311 100644 --- a/net/vhost-user.c +++ b/net/vhost-user.c @@ -214,7 +214,7 @@ static void chr_closed_bh(void *opaque) vhost_user_stop(queues, ncs); qemu_chr_fe_set_handlers(&s->chr, NULL, NULL, net_vhost_user_event, - opaque, NULL, true); + NULL, opaque, NULL, true); if (err) { error_report_err(err); @@ -260,7 +260,7 @@ static void net_vhost_user_event(void *opaque, int event) g_source_remove(s->watch); s->watch = 0; - qemu_chr_fe_set_handlers(&s->chr, NULL, NULL, NULL, + qemu_chr_fe_set_handlers(&s->chr, NULL, NULL, NULL, NULL, NULL, NULL, false); aio_bh_schedule_oneshot(ctx, chr_closed_bh, opaque); @@ -308,7 +308,8 @@ static int net_vhost_user_init(NetClientState *peer, const char *device, return -1; } qemu_chr_fe_set_handlers(&s->chr, NULL, NULL, - net_vhost_user_event, nc0->name, NULL, true); + net_vhost_user_event, NULL, nc0->name, NULL, + true); } while (!s->started); assert(s->vhost_net); diff --git a/qtest.c b/qtest.c index 5aa6636..b6e9780 100644 --- a/qtest.c +++ b/qtest.c @@ -691,7 +691,7 @@ void qtest_init(const char *qtest_chrdev, const char *qtest_log, Error **errp) qemu_chr_fe_init(&qtest_chr, chr, errp); qemu_chr_fe_set_handlers(&qtest_chr, qtest_can_read, qtest_read, - qtest_event, &qtest_chr, NULL, true); + qtest_event, NULL, &qtest_chr, NULL, true); qemu_chr_fe_set_echo(&qtest_chr, true); inbuf = g_string_new(""); diff --git a/tests/test-char.c b/tests/test-char.c index 124d0c5..f3b377f 100644 --- a/tests/test-char.c +++ b/tests/test-char.c @@ -182,6 +182,7 @@ static void char_mux_test(void) fe_can_read, fe_read, fe_event, + NULL, &h1, NULL, true); @@ -190,6 +191,7 @@ static void char_mux_test(void) fe_can_read, fe_read, fe_event, + NULL, &h2, NULL, true); qemu_chr_fe_take_focus(&chr_be2); @@ -213,7 +215,8 @@ static void char_mux_test(void) h1.read_count = 0; /* remove first handler */ - qemu_chr_fe_set_handlers(&chr_be1, NULL, NULL, NULL, NULL, NULL, true); + qemu_chr_fe_set_handlers(&chr_be1, NULL, NULL, NULL, NULL, + NULL, NULL, true); qemu_chr_be_write(base, (void *)"hello", 6); g_assert_cmpint(h1.read_count, ==, 0); g_assert_cmpint(h2.read_count, ==, 0); @@ -312,13 +315,13 @@ static void char_socket_test(void) qemu_chr_fe_init(&be, chr, &error_abort); qemu_chr_fe_set_handlers(&be, socket_can_read, socket_read, - NULL, &d, NULL, true); + NULL, NULL, &d, NULL, true); chr_client = qemu_chr_new("client", tmp); qemu_chr_fe_init(&client_be, chr_client, &error_abort); qemu_chr_fe_set_handlers(&client_be, socket_can_read_hello, socket_read_hello, - NULL, &d, NULL, true); + NULL, NULL, &d, NULL, true); g_free(tmp); d.conn_expected = true; @@ -388,6 +391,7 @@ static void char_pipe_test(void) fe_can_read, fe_read, fe_event, + NULL, &fe, NULL, true); @@ -437,7 +441,7 @@ static void char_udp_test(void) d.chr = chr; qemu_chr_fe_init(&be, chr, &error_abort); qemu_chr_fe_set_handlers(&be, socket_can_read_hello, socket_read_hello, - NULL, &d, NULL, true); + NULL, NULL, &d, NULL, true); ret = qemu_chr_write_all(chr, (uint8_t *)"hello", 5); g_assert_cmpint(ret, ==, 5); @@ -503,6 +507,7 @@ static void char_file_test(void) fe_can_read, fe_read, fe_event, + NULL, &fe, NULL, true); main_loop(); @@ -558,6 +563,7 @@ static void char_null_test(void) fe_can_read, fe_read, fe_event, + NULL, NULL, NULL, true); ret = qemu_chr_fe_write(&be, (void *)"buf", 4); diff --git a/tests/vhost-user-test.c b/tests/vhost-user-test.c index 9095af2..718c08a 100644 --- a/tests/vhost-user-test.c +++ b/tests/vhost-user-test.c @@ -464,7 +464,7 @@ static void test_server_create_chr(TestServer *server, const gchar *opt) qemu_chr_fe_init(&server->chr, chr, &error_abort); qemu_chr_fe_set_handlers(&server->chr, chr_can_read, chr_read, - chr_event, server, NULL, true); + chr_event, NULL, server, NULL, true); } static void test_server_listen(TestServer *server)

[v3,02/13] char: add backend hotswap handler

Commit Message

Patch