diff options
Diffstat (limited to 'cpus.c')
| -rw-r--r-- | cpus.c | 20 |
1 files changed, 13 insertions, 7 deletions
@@ -191,8 +191,12 @@ int64_t cpu_icount_to_ns(int64_t icount) return icount << icount_time_shift; } -/* return the host CPU cycle counter and handle stop/restart */ -/* Caller must hold the BQL */ +/* return the time elapsed in VM between vm_start and vm_stop. Unless + * icount is active, cpu_get_ticks() uses units of the host CPU cycle + * counter. + * + * Caller must hold the BQL + */ int64_t cpu_get_ticks(void) { int64_t ticks; @@ -219,17 +223,19 @@ int64_t cpu_get_ticks(void) static int64_t cpu_get_clock_locked(void) { - int64_t ticks; + int64_t time; - ticks = timers_state.cpu_clock_offset; + time = timers_state.cpu_clock_offset; if (timers_state.cpu_ticks_enabled) { - ticks += get_clock(); + time += get_clock(); } - return ticks; + return time; } -/* return the host CPU monotonic time */ +/* Return the monotonic time elapsed in VM, i.e., + * the time between vm_start and vm_stop + */ int64_t cpu_get_clock(void) { int64_t ti; |