From b623031ca60b23dbb8a573306495e7d99821a9af Mon Sep 17 00:00:00 2001 From: Kyle Evans Date: Mon, 25 Sep 2023 21:24:07 +0300 Subject: bsd-user: Get number of cpus. Signed-off-by: Kyle Evans Signed-off-by: Karim Taha Reviewed-by: Warner Losh Message-Id: <20230925182425.3163-11-kariem.taha2.7@gmail.com> --- bsd-user/bsd-proc.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'bsd-user/bsd-proc.c') diff --git a/bsd-user/bsd-proc.c b/bsd-user/bsd-proc.c index 19f6efe1f7..ca3c1bf94f 100644 --- a/bsd-user/bsd-proc.c +++ b/bsd-user/bsd-proc.c @@ -119,3 +119,27 @@ int host_to_target_waitstatus(int status) return status; } +int bsd_get_ncpu(void) +{ + int ncpu = -1; + cpuset_t mask; + + CPU_ZERO(&mask); + + if (cpuset_getaffinity(CPU_LEVEL_WHICH, CPU_WHICH_TID, -1, sizeof(mask), + &mask) == 0) { + ncpu = CPU_COUNT(&mask); + } + + if (ncpu == -1) { + ncpu = sysconf(_SC_NPROCESSORS_ONLN); + } + + if (ncpu == -1) { + gemu_log("XXX Missing bsd_get_ncpu() implementation\n"); + ncpu = 1; + } + + return ncpu; +} + -- cgit 1.4.1