qemu/hw/nvram
Tong Ho c2c1c4a35c hw/nvram: Avoid unnecessary Xilinx eFuse backstore write
Add a check in the bit-set operation to write the backstore
only if the affected bit is 0 before.

With this in place, there will be no need for callers to
do the checking in order to avoid unnecessary writes.

Signed-off-by: Tong Ho <tong.ho@amd.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-07-17 11:05:52 +01:00
..
chrp_nvram.c nvram: Exit QEMU if NVRAM cannot contain all -prom-env data 2020-08-14 13:34:31 +10:00
ds1225y.c Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
eeprom93xx.c Drop useless casts from g_malloc() & friends to pointer 2022-10-22 23:15:40 +02:00
eeprom_at24c.c hw/at24c : modify at24c to support 1 byte address mode 2023-03-02 13:57:50 +01:00
fw_cfg-interface.c hw/nvram: Always register FW_CFG_DATA_GENERATOR_INTERFACE 2020-10-12 11:50:20 -04:00
fw_cfg.c Revert "x86: return modified setup_data only if read as memory, not as file" 2023-03-02 03:10:46 -05:00
Kconfig hw/nvram: Introduce Xilinx battery-backed ram 2021-09-30 13:42:10 +01:00
mac_nvram.c mac_nvram: Add block backend to persist NVRAM contents 2023-02-06 11:41:39 +00:00
meson.build meson: Replace softmmu_ss -> system_ss 2023-06-20 10:01:30 +02:00
npcm7xx_otp.c hw/*: Use type casting for SysBusDevice in NPCM7XX 2021-01-12 21:19:02 +00:00
nrf51_nvm.c Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
spapr_nvram.c block: Change blk_{pread,pwrite}() param order 2022-07-12 12:14:56 +02:00
trace-events docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
xlnx-bbram.c block: Change blk_{pread,pwrite}() param order 2022-07-12 12:14:56 +02:00
xlnx-efuse-crc.c hw/nvram: Introduce Xilinx eFuse QOM 2021-09-30 13:42:09 +01:00
xlnx-efuse.c hw/nvram: Avoid unnecessary Xilinx eFuse backstore write 2023-07-17 11:05:52 +01:00
xlnx-versal-efuse-cache.c hw/nvram: Introduce Xilinx Versal eFuse device 2021-09-30 13:42:10 +01:00
xlnx-versal-efuse-ctrl.c hw/nvram: Fix Memory Leak in Xilinx Versal eFuse device 2021-10-23 18:50:33 +02:00
xlnx-zynqmp-efuse.c hw/nvram: Fix Memory Leak in Xilinx ZynqMP eFuse device 2021-10-23 18:50:33 +02:00