tree 83c0c79893044cb23d374180c3fee16195fc95df
parent e60a7d0d4d89c8bca8a74a877e31abce50e848e3
author Tong Ho <tong.ho@amd.com> 1682543767 -0700
committer Peter Maydell <peter.maydell@linaro.org> 1689588352 +0100

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>