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| author | Frediano Ziglio <frediano.ziglio@cloud.com> | 2024-06-19 11:40:15 +0100 |
|---|---|---|
| committer | Juergen Gross <jgross@suse.com> | 2024-07-02 09:35:52 +0200 |
| commit | ad162488bbd359abda99c9819f5cbe9172f40935 (patch) | |
| tree | 0e71a3c292c989a119a09ac82abfa59ba10bbcb8 | |
| parent | e51d31c454fbd64e5de8d85c94bb519228f4c78a (diff) | |
| download | linux-ad162488bbd359abda99c9819f5cbe9172f40935.tar.gz linux-ad162488bbd359abda99c9819f5cbe9172f40935.tar.bz2 linux-ad162488bbd359abda99c9819f5cbe9172f40935.zip | |
x86/xen/time: Reduce Xen timer tick
Current timer tick is causing some deadline to fail.
The current high value constant was probably due to an old
bug in the Xen timer implementation causing errors if the
deadline was in the future.
This was fixed in Xen commit:
19c6cbd90965 xen/vcpu: ignore VCPU_SSHOTTMR_future
Usage of VCPU_SSHOTTMR_future in Linux kernel was removed by:
c06b6d70feb3 xen/x86: don't lose event interrupts
Signed-off-by: Frediano Ziglio <frediano.ziglio@cloud.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20240619104015.30477-1-frediano.ziglio@cloud.com
Signed-off-by: Juergen Gross <jgross@suse.com>
| -rw-r--r-- | arch/x86/xen/time.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/xen/time.c b/arch/x86/xen/time.c index 52fa5609b7f6..96521b1874ac 100644 --- a/arch/x86/xen/time.c +++ b/arch/x86/xen/time.c @@ -30,7 +30,7 @@ #include "xen-ops.h" /* Minimum amount of time until next clock event fires */ -#define TIMER_SLOP 100000 +#define TIMER_SLOP 1 static u64 xen_sched_clock_offset __read_mostly; |