From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paolo Bonzini Subject: Re: [PATCH v8 0/7] Use eoi to track RTC interrupt delivery status Date: Tue, 09 Apr 2013 18:27:10 +0200 Message-ID: <5164415E.9090101@redhat.com> References: <1365430669-31126-1-git-send-email-yang.z.zhang@intel.com> <20130409070815.GP17919@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Yang Zhang , kvm@vger.kernel.org, mtosatti@redhat.com, xiantao.zhang@intel.com To: Gleb Natapov Return-path: Received: from mail-qc0-f182.google.com ([209.85.216.182]:46475 "EHLO mail-qc0-f182.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S936133Ab3DIQ1R (ORCPT ); Tue, 9 Apr 2013 12:27:17 -0400 Received: by mail-qc0-f182.google.com with SMTP id k19so3141548qcs.27 for ; Tue, 09 Apr 2013 09:27:16 -0700 (PDT) In-Reply-To: <20130409070815.GP17919@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: Il 09/04/2013 09:08, Gleb Natapov ha scritto: >> > Current interrupt coalescing logci which only used by RTC has conflict >> > with Posted Interrupt. >> > >> > This patch introduces a new mechinism to use eoi to track interrupt: >> > When delivering an interrupt to vcpu, the pending_eoi set to number of >> > vcpu that received the interrupt. And decrease it when each vcpu writing >> > eoi. No subsequent RTC interrupt can deliver to vcpu until all vcpus >> > write eoi. >> > > Only minor comment from me to this one. Paolo, Marcelo any comments? > No, thanks. Paolo