From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: [PATCH 13/15] Add NMI injection support to SVM. Date: Sun, 19 Apr 2009 16:43:12 +0300 Message-ID: <49EB2A70.5020200@redhat.com> References: <1239616545-25199-1-git-send-email-gleb@redhat.com> <1239616545-25199-14-git-send-email-gleb@redhat.com> <49E8DEC1.4030802@web.de> <20090419131735.GG10126@redhat.com> <49EB26BA.9020200@web.de> <20090419133222.GK10126@redhat.com> <49EB29E3.5030901@redhat.com> <20090419134143.GM10126@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Jan Kiszka , kvm@vger.kernel.org, joerg.roedel@amd.com, sheng@linux.intel.com, Dmitry Baryshkov To: Gleb Natapov Return-path: Received: from mx2.redhat.com ([66.187.237.31]:43528 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932160AbZDSNnX (ORCPT ); Sun, 19 Apr 2009 09:43:23 -0400 In-Reply-To: <20090419134143.GM10126@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: Gleb Natapov wrote: > On Sun, Apr 19, 2009 at 04:40:51PM +0300, Avi Kivity wrote: > >> Gleb Natapov wrote: >> >>>> It's OK as a first step towards correct NMI emulation. Additionally, you >>>> could enable the IRQ window interception in case the is an NMI pending. >>>> The resulting behavior should then much like the VNMI mask emulation for >>>> vmx. >>>> >>>> >>>> >>> Yeah, but the question is if IRQ windows is already opened will exit >>> happens before or after IRET. >>> >>> >> You mean if the NMI handler enabled interrupts? >> >> > Yes. > > Then the guest deserves whatever it gets... -- Do not meddle in the internals of kernels, for they are subtle and quick to panic.