From fa5664be225723ba024d69352407f2bf309fef2d Mon Sep 17 00:00:00 2001 From: "\"Zhai, Edwin\"" Date: Tue, 30 Jan 2007 11:56:25 +0000 Subject: [PATCH] [PATCH][HVM] fix smp guest hang after restore [PATCH][HVM] fix smp guest hang after restore Signed-off-by: Zhai Edwin update the pt irq after restore, otherwise all lapic timer intr are lost --- xen/arch/x86/hvm/vlapic.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/xen/arch/x86/hvm/vlapic.c b/xen/arch/x86/hvm/vlapic.c index e3456f391a..1951dbb2e6 100644 --- a/xen/arch/x86/hvm/vlapic.c +++ b/xen/arch/x86/hvm/vlapic.c @@ -836,14 +836,16 @@ static int lapic_load(hvm_domain_context_t *h, void *opaque, int version_id) tmict = vlapic_get_reg(s, APIC_TMICT); if (tmict > 0) { uint64_t period = APIC_BUS_CYCLE_NS * (uint32_t)tmict * s->hw.timer_divisor; + uint32_t lvtt = vlapic_get_reg(s, APIC_LVTT); + s->pt.irq = lvtt & APIC_VECTOR_MASK; create_periodic_time(v, &s->pt, period, s->pt.irq, vlapic_lvtt_period(s), NULL, s); printk("lapic_load to rearm the actimer:" "bus cycle is %uns, " - "saved tmict count %lu, period %"PRIu64"ns\n", - APIC_BUS_CYCLE_NS, tmict, period); + "saved tmict count %lu, period %"PRIu64"ns, irq=%"PRIu8"\n", + APIC_BUS_CYCLE_NS, tmict, period, s->pt.irq); } -- 2.30.2