Daniel P. Berrange 6ab3fc32ea hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all ... The qemu_chr_fe_write method will return -1 on EAGAIN if the chardev backend write would block. Almost no callers of the qemu_chr_fe_write() method check the return value, instead blindly assuming data was successfully sent. In most cases this will lead to silent data loss on interactive consoles, but in some cases (eg RNG EGD) it'll just cause corruption of the protocol being spoken. We unfortunately can't fix the virtio-console code, due to a bug in the Linux guest drivers, which would cause the entire Linux kernel to hang if we delay processing of the incoming data in any way. Fixing this requires first fixing the guest driver to not hold spinlocks while writing to the hvc device backend. Fixes bug: https://bugs.launchpad.net/qemu/+bug/1586756 Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-Id: <1473170165-540-4-git-send-email-berrange@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2016-09-13 19:09:42 +02:00
..
bcm2835_aux.c	hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all	2016-09-13 19:09:42 +02:00
cadence_uart.c	* serial port fixes (Paolo)	2016-06-29 19:14:48 +01:00
debugcon.c	hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all	2016-09-13 19:09:42 +02:00
digic-uart.c	hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all	2016-09-13 19:09:42 +02:00
escc.c	hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all	2016-09-13 19:09:42 +02:00
etraxfs_ser.c	hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all	2016-09-13 19:09:42 +02:00
exynos4210_uart.c	hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all	2016-09-13 19:09:42 +02:00
grlib_apbuart.c	hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all	2016-09-13 19:09:42 +02:00
imx_serial.c	hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all	2016-09-13 19:09:42 +02:00
ipoctal232.c	hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all	2016-09-13 19:09:42 +02:00
lm32_juart.c	hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all	2016-09-13 19:09:42 +02:00
lm32_uart.c	hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all	2016-09-13 19:09:42 +02:00
Makefile.objs	bcm2835_aux: add emulation of BCM2835 AUX (aka UART1) block	2016-03-16 17:42:18 +00:00
mcf_uart.c	hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all	2016-09-13 19:09:42 +02:00
milkymist-uart.c	milkymist: update specification URLs	2016-06-20 18:12:04 +02:00
omap_uart.c	arm devices: Clean up includes	2016-01-29 15:07:25 +00:00
parallel.c	hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all	2016-09-13 19:09:42 +02:00
pl011.c	hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all	2016-09-13 19:09:42 +02:00
sclpconsole-lm.c	hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all	2016-09-13 19:09:42 +02:00
sclpconsole.c	hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all	2016-09-13 19:09:42 +02:00
serial-isa.c	include/qemu/osdep.h: Don't include qapi/error.h	2016-03-22 22:20:15 +01:00
serial-pci.c	include/qemu/osdep.h: Don't include qapi/error.h	2016-03-22 22:20:15 +01:00
serial.c	serial: reinstate watch after migration	2016-06-29 14:03:47 +02:00
sh_serial.c	hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all	2016-09-13 19:09:42 +02:00
spapr_vty.c	hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all	2016-09-13 19:09:42 +02:00
stm32f2xx_usart.c	hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all	2016-09-13 19:09:42 +02:00
trace-events	trace-events: fix first line comment in trace-events	2016-08-12 10:36:01 +01:00
virtio-console.c	hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all	2016-09-13 19:09:42 +02:00
virtio-serial-bus.c	virtio-serial: Wrap in vmstate	2016-07-21 20:44:20 +03:00
xen_console.c	os-posix: include sys/mman.h	2016-06-16 18:39:03 +02:00
xilinx_uartlite.c	hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all	2016-09-13 19:09:42 +02:00