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| author | Keir Fraser <keir.fraser@citrix.com> | 2008-05-06 16:20:54 +0100 |
|---|---|---|
| committer | Keir Fraser <keir.fraser@citrix.com> | 2008-05-06 16:20:54 +0100 |
| commit | 08fe56f0cd8c00e4b3e12874cfc5c98fa7466e3b (patch) | |
| tree | 2cecf4f9f036731eba35a2dfb3fc1f8b25481459 | |
| parent | df4d2e7b701450197d35aa851463e1329b20981c (diff) | |
| download | xen-08fe56f0cd8c00e4b3e12874cfc5c98fa7466e3b.tar.gz xen-08fe56f0cd8c00e4b3e12874cfc5c98fa7466e3b.tar.bz2 xen-08fe56f0cd8c00e4b3e12874cfc5c98fa7466e3b.zip | |
x86 hvm: Warn only once per time source when the periodic tiemout is
set 'too small'.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
| -rw-r--r-- | xen/arch/x86/hvm/vpt.c | 6 | ||||
| -rw-r--r-- | xen/include/asm-x86/hvm/vpt.h | 1 |
2 files changed, 4 insertions, 3 deletions
diff --git a/xen/arch/x86/hvm/vpt.c b/xen/arch/x86/hvm/vpt.c index 16f886647d..832c9042d7 100644 --- a/xen/arch/x86/hvm/vpt.c +++ b/xen/arch/x86/hvm/vpt.c @@ -338,9 +338,9 @@ void create_periodic_time( /* Periodic timer must be at least 0.9ms. */ if ( (period < 900000) && !one_shot ) { - gdprintk(XENLOG_WARNING, - "HVM_PlatformTime: program too small period %"PRIu64"\n", - period); + if ( !test_and_set_bool(pt->warned_timeout_too_short) ) + gdprintk(XENLOG_WARNING, "HVM_PlatformTime: program too " + "small period %"PRIu64"\n", period); period = 900000; } diff --git a/xen/include/asm-x86/hvm/vpt.h b/xen/include/asm-x86/hvm/vpt.h index b7176e89b1..d05d0dfa27 100644 --- a/xen/include/asm-x86/hvm/vpt.h +++ b/xen/include/asm-x86/hvm/vpt.h @@ -78,6 +78,7 @@ struct periodic_time { bool_t one_shot; bool_t do_not_freeze; bool_t irq_issued; + bool_t warned_timeout_too_short; #define PTSRC_isa 1 /* ISA time source */ #define PTSRC_lapic 2 /* LAPIC time source */ u8 source; /* PTSRC_ */ |