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Fix a bug and support more clockids in vdso.

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This commit is contained in:
Chen Chengjun
2023-12-14 13:56:18 +08:00
committed by Tate, Hongliang Tian
parent d24775001f
commit 47d2a895af
3 changed files with 56 additions and 34 deletions
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9
services/comps/time/src/tsc.rs
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@ -13,7 +13,7 @@ use crate::{START_TIME, VDSO_DATA_UPDATE};
/// A instance of TSC clocksource.
pub static CLOCK: Once<Arc<ClockSource>> = Once::new();
const MAX_DELAY_SECS: u64 = 60;
const MAX_DELAY_SECS: u64 = 100;
/// Init tsc clocksource module.
pub(super) fn init() {
@ -62,10 +62,11 @@ fn update_clocksource(timer: Arc<Timer>) {
fn init_timer() {
let timer = Timer::new(update_clocksource).unwrap();
// The initial timer should be set as `clock.max_delay_secs() >> 1` or something much smaller than `max_delay_secs`.
// This is because the initialization of this timer occurs during system startup.
// Afterwards, the system will undergo additional initialization processes, during which time interrupts are disabled.
// This is because the initialization of this timer occurs during system startup,
// and the system will also undergo other initialization processes, during which time interrupts are disabled.
// This results in the actual trigger time of the timer being delayed by about 5 seconds compared to the set time.
// TODO: This is a temporary handle, and should be modified in the future.
// If without KVM, the delayed time will be larger.
// TODO: This is a temporary solution, and should be modified in the future.
timer.set(Duration::from_secs(
CLOCK.get().unwrap().max_delay_secs() >> 1,
));