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| author | Keir Fraser <keir@xen.org> | 2010-12-09 10:16:03 +0000 |
|---|---|---|
| committer | Keir Fraser <keir@xen.org> | 2010-12-09 10:16:03 +0000 |
| commit | 13ef6dbde14288c475df7203a30dbbd21e4066aa (patch) | |
| tree | 5dec8dfeaffdb534b1ccc83b3b416e7ac597da1f | |
| parent | 4dbf5ef7073b051ab7374f597914cd9678e087da (diff) | |
| download | xen-13ef6dbde14288c475df7203a30dbbd21e4066aa.tar.gz xen-13ef6dbde14288c475df7203a30dbbd21e4066aa.tar.bz2 xen-13ef6dbde14288c475df7203a30dbbd21e4066aa.zip | |
x86:vlapic: Fix possible guest tick losing after save/restore
Guest vcpu may totally lose all ticks if the vlapic->pt.irq was not
restored during save/restore process. Fix it.
Signed-off-by: Wei Gang <gang.wei@intel.com>
xen-unstable changeset: 22470:0c97247c64d6
xen-unstable date: Thu Dec 09 08:34:59 2010 +0000
| -rw-r--r-- | xen/arch/x86/hvm/vlapic.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/xen/arch/x86/hvm/vlapic.c b/xen/arch/x86/hvm/vlapic.c index 83057f91f5..0b09aa9567 100644 --- a/xen/arch/x86/hvm/vlapic.c +++ b/xen/arch/x86/hvm/vlapic.c @@ -863,12 +863,12 @@ static void lapic_rearm(struct vlapic *s) unsigned long tmict = vlapic_get_reg(s, APIC_TMICT); uint64_t period; + s->pt.irq = vlapic_get_reg(s, APIC_LVTT) & APIC_VECTOR_MASK; if ( (tmict = vlapic_get_reg(s, APIC_TMICT)) == 0 ) return; period = ((uint64_t)APIC_BUS_CYCLE_NS * (uint32_t)tmict * s->hw.timer_divisor); - s->pt.irq = vlapic_get_reg(s, APIC_LVTT) & APIC_VECTOR_MASK; create_periodic_time(vlapic_vcpu(s), &s->pt, period, vlapic_lvtt_period(s) ? period : 0, s->pt.irq, vlapic_pt_cb, |