From 2abc242e40f8e2980bd7b82c1a88ebaff66b2f4b Mon Sep 17 00:00:00 2001 From: "djm@kirby.fc.hp.com" Date: Fri, 17 Jun 2005 17:17:45 +0000 Subject: [PATCH] bitkeeper revision 1.1713.2.6 (42b305b9mdLLzenpwCqtnZeLKLPMXw) Check to ensure no interrupts to deliver before allowing a guest to "pause" itself --- xen/arch/ia64/hypercall.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/xen/arch/ia64/hypercall.c b/xen/arch/ia64/hypercall.c index 648bbfbbe8..7921425365 100644 --- a/xen/arch/ia64/hypercall.c +++ b/xen/arch/ia64/hypercall.c @@ -40,6 +40,17 @@ ia64_hypercall (struct pt_regs *regs) #endif x = pal_emulator_static(regs->r28); if (regs->r28 == PAL_HALT_LIGHT) { +#if 1 +#define SPURIOUS_VECTOR 15 + if (vcpu_check_pending_interrupts(v)!=SPURIOUS_VECTOR) { +//printf("Domain trying to go idle when interrupt pending!\n"); +//this shouldn't happen, but it apparently does quite a bit! so don't +//allow it to happen... i.e. if a domain has an interrupt pending and +//it tries to halt itself because it thinks it is idle, just return here +//as deliver_pending_interrupt is called on the way out and will deliver it + } + else +#endif do_sched_op(SCHEDOP_yield); //break; } -- 2.30.2