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450aaae863
qemu-e2k/hw/char
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Alistair Francis 450aaae863 cadence_uart: Check baud rate generator and divider values on migration 
The Cadence UART device emulator calculates speed by dividing the
baud rate by a 'baud rate generator' & 'baud rate divider' value.
The device specification defines these register values to be
non-zero and within certain limits. Checks were recently added when
writing to these registers but not when restoring from migration.

This patch adds checks when restoring from migration to avoid divide by
zero errors.

Reported-by: Huawei PSIRT <psirt@huawei.com>
Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: 04ae30ed8ee1758cd2d2af880da4d28f74c67738.1481132150.git.alistair.francis@xilinx.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-12-27 14:59:22 +00:00
..
bcm2835_aux.c char: remove explicit_fe_open, use a set_handlers argument 2016-10-24 15:46:10 +02:00
cadence_uart.c cadence_uart: Check baud rate generator and divider values on migration 2016-12-27 14:59:22 +00:00
debugcon.c char: remove explicit_fe_open, use a set_handlers argument 2016-10-24 15:46:10 +02:00
digic-uart.c char: remove explicit_fe_open, use a set_handlers argument 2016-10-24 15:46:10 +02:00
escc.c char: remove explicit_fe_open, use a set_handlers argument 2016-10-24 15:46:10 +02:00
etraxfs_ser.c char: remove explicit_fe_open, use a set_handlers argument 2016-10-24 15:46:10 +02:00
exynos4210_uart.c char: remove explicit_fe_open, use a set_handlers argument 2016-10-24 15:46:10 +02:00
grlib_apbuart.c char: remove explicit_fe_open, use a set_handlers argument 2016-10-24 15:46:10 +02:00
imx_serial.c char: remove explicit_fe_open, use a set_handlers argument 2016-10-24 15:46:10 +02:00
ipoctal232.c char: remove explicit_fe_open, use a set_handlers argument 2016-10-24 15:46:10 +02:00
lm32_juart.c char: remove explicit_fe_open, use a set_handlers argument 2016-10-24 15:46:10 +02:00
lm32_uart.c char: remove explicit_fe_open, use a set_handlers argument 2016-10-24 15:46:10 +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 char: remove explicit_fe_open, use a set_handlers argument 2016-10-24 15:46:10 +02:00
milkymist-uart.c char: remove explicit_fe_open, use a set_handlers argument 2016-10-24 15:46:10 +02:00
omap_uart.c char: remove init callback 2016-10-24 15:27:20 +02:00
parallel.c char: use qemu_chr_fe* functions with CharBackend argument 2016-10-24 15:27:21 +02:00
pl011.c char: remove explicit_fe_open, use a set_handlers argument 2016-10-24 15:46:10 +02:00
sclpconsole-lm.c char: remove explicit_fe_open, use a set_handlers argument 2016-10-24 15:46:10 +02:00
sclpconsole.c char: remove explicit_fe_open, use a set_handlers argument 2016-10-24 15:46:10 +02:00
serial-isa.c sun4uv: fix serial initialization regression 2016-10-24 15:27:20 +02:00
serial-pci.c include/qemu/osdep.h: Don't include qapi/error.h 2016-03-22 22:20:15 +01:00
serial.c char: remove explicit_fe_open, use a set_handlers argument 2016-10-24 15:46:10 +02:00
sh_serial.c char: remove explicit_fe_open, use a set_handlers argument 2016-10-24 15:46:10 +02:00
spapr_vty.c hw/char/spapr_vty: Return amount of free buffer entries in vty_can_receive() 2016-11-23 12:00:48 +11:00
stm32f2xx_usart.c char: remove explicit_fe_open, use a set_handlers argument 2016-10-24 15:46:10 +02:00
trace-events hw/char/pl011: Add trace events 2016-10-17 19:32:44 +01:00
virtio-console.c char: remove explicit_fe_open, use a set_handlers argument 2016-10-24 15:46:10 +02:00
virtio-serial-bus.c virtio: cleanup VMSTATE_VIRTIO_DEVICE 2016-10-10 02:21:43 +03:00
xen_console.c xen: Rename xen_be_send_notify 2016-10-28 17:54:21 -07:00
xilinx_uartlite.c char: remove explicit_fe_open, use a set_handlers argument 2016-10-24 15:46:10 +02:00