qemu-e2k/hw/gpio
Peter Delevoryas 1f30db922c hw/gpio/aspeed: Don't let guests modify input pins
Up until now, guests could modify input pins by overwriting the data
value register. The guest OS should only be allowed to modify output pin
values, and the QOM property setter should only be permitted to modify
input pins.

This change also updates the gpio input pin test to match this
expectation.

Andrew suggested this particularly refactoring here:

    https://lore.kernel.org/qemu-devel/23523aa1-ba81-412b-92cc-8174faba3612@www.fastmail.com/

Suggested-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Peter Delevoryas <peter@pjd.dev>
Fixes: 4b7f956862 ("hw/gpio: Add basic Aspeed GPIO model for AST2400 and AST2500")
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220712023219.41065-3-peter@pjd.dev>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-07-14 16:24:38 +02:00
..
aspeed_gpio.c hw/gpio/aspeed: Don't let guests modify input pins 2022-07-14 16:24:38 +02:00
bcm2835_gpio.c
gpio_key.c
gpio_pwr.c
imx_gpio.c Remove unnecessary minimum_version_id_old fields 2022-01-28 15:38:23 +01:00
Kconfig
max7310.c
meson.build
mpc8xxx.c
npcm7xx_gpio.c
nrf51_gpio.c
omap_gpio.c exec/exec-all: Move 'qemu/log.h' include in units requiring it 2022-02-21 10:18:06 +01:00
pl061.c
sifive_gpio.c
trace-events hw/gpio Add GPIO read/write trace event. 2022-05-25 10:31:33 +02:00
trace.h
zaurus.c