Re: [PATCH v2] KVM: x86: Remove support for reporting coalesced APIC IRQs

2013-05-14 Thread Gleb Natapov
On Mon, May 13, 2013 at 10:30:33PM -0300, Marcelo Tosatti wrote: > On Thu, May 02, 2013 at 10:14:32PM -0300, Marcelo Tosatti wrote: > > On Sun, Apr 28, 2013 at 02:00:41PM +0200, Jan Kiszka wrote: > > > From: Jan Kiszka > > > > > > Since the arrival of posted interrupt support we can no longer gua

Re: [PATCH v2] KVM: x86: Remove support for reporting coalesced APIC IRQs

2013-05-13 Thread Marcelo Tosatti
On Thu, May 02, 2013 at 10:14:32PM -0300, Marcelo Tosatti wrote: > On Sun, Apr 28, 2013 at 02:00:41PM +0200, Jan Kiszka wrote: > > From: Jan Kiszka > > > > Since the arrival of posted interrupt support we can no longer guarantee > > that coalesced IRQs are always reported to the IRQ source. Moreo

Re: [PATCH v2] KVM: x86: Remove support for reporting coalesced APIC IRQs

2013-05-02 Thread Marcelo Tosatti
On Sun, Apr 28, 2013 at 02:00:41PM +0200, Jan Kiszka wrote: > From: Jan Kiszka > > Since the arrival of posted interrupt support we can no longer guarantee > that coalesced IRQs are always reported to the IRQ source. Moreover, > accumulated APIC timer events could cause a busy loop when a VCPU sh