forked from Mirrors/opensbi

There is currently no helper for iterating through the harts in a system, and code must choose between sbi_scratch_last_hartindex() and sbi_platform_hart_count() for the loop condition. sbi_scratch_last_hartindex() has unusual semantics, leading to the likelihood of off-by-one errors, and sbi_platform_hart_count() is provided by the platform and so may not be properly bounded. Add a new helper which definitively reports the number of harts managed by this OpenSBI instance, i.e. the number of valid hart indexes, and a convenient iterator macro. Signed-off-by: Samuel Holland <samuel.holland@sifive.com> Reviewed-by: Anup Patel <anup@brainfault.org>