On Sun, Oct 29, 2023 at 09:45:33AM +0100, Heinrich Schuchardt wrote: > The Zkr ISA extension (ratified Nov 2021) introduced the seed CSR. It > provides an interface to a physical entropy source. > > A RNG driver based on the seed CSR is provided. It depends on > mseccfg.sseed being set in the SBI firmware. > > Signed-off-by: Heinrich Schuchardt <[email protected]> > --- > v2: > Resume after exception if seed CSR cannot be read. > --- > drivers/rng/Kconfig | 8 +++ > drivers/rng/Makefile | 1 + > drivers/rng/riscv_zkr_rng.c | 116 ++++++++++++++++++++++++++++++++++++ > 3 files changed, 125 insertions(+) > create mode 100644 drivers/rng/riscv_zkr_rng.c
Reviewed-by: Leo Yu-Chi Liang <[email protected]>
