From mboxrd@z Thu Jan 1 00:00:00 1970 From: Keir Fraser Subject: Re: NMI delivery not correctly working Date: Wed, 25 Jul 2007 07:57:10 +0100 Message-ID: References: <200707250848.21972.Christoph.Egger@amd.com> Mime-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <200707250848.21972.Christoph.Egger@amd.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Christoph Egger Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org On 25/7/07 07:48, "Christoph Egger" wrote: >> Guests *must* use the iret hypercall when returning from their NMI handler. >> This is giving a virtualised equivalent of the 'NMI-blocking' latch >> implemented in x86 processors, which is reset by the IRET instruction. >> > > Ah, I see. Tnx. It would be really nice to have > some documentation about hypercalls, though. Yes. :-) Actually I try to put reasonable amounts of detail in the public header files, and would like patches to beef up that self-documentation where it's lacking. Separate and more detailed docs would be great too, if someone has the time. -- Keir