James Raphael Tiovalen 9656943bd3 lib: sbi_pmu: Add FW counter index validation when reading high bits on RV64 ...

Currently, when we attempt to read the upper 32 bits of a firmware
counter on RV64 or higher, we just set `sbiret.value` to 0 without
validating the counter index. The SBI specification requires us to set
`sbiret.error` to `SBI_ERR_INVALID_PARAM` if the counter index points to
a hardware counter or an invalid counter. Add a validation check to
ensure compliance with the specification on RV64 or higher.

Fixes: 51951d9e9a ("lib: sbi_pmu: Implement sbi_pmu_counter_fw_read_hi")
Signed-off-by: James Raphael Tiovalen <jamestiotio@gmail.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20260125090643.190748-1-jamestiotio@gmail.com
Signed-off-by: Anup Patel <anup@brainfault.org>

2026-02-21 10:20:41 +05:30

..

sbi

lib: sbi_pmu: Add FW counter index validation when reading high bits on RV64

2026-02-21 10:20:41 +05:30

sbi_utils

lib: utils/serial: Add support for Altera JTAG UART

2026-02-20 16:50:35 +05:30