From mboxrd@z Thu Jan 1 00:00:00 1970 From: Julien Grall Subject: Re: [RFC PATCH v2 13/22] xen/arm: its: Add virtual ITS command support Date: Thu, 30 Apr 2015 11:20:19 +0100 Message-ID: <554201E3.7000207@citrix.com> References: <1426775889-29442-1-git-send-email-vijay.kilari@gmail.com> <1427888815.2115.279.camel@citrix.com> <551BDE4C.9030109@citrix.com> <1427966007.4037.14.camel@citrix.com> <551D2298.2060302@citrix.com> <1427973539.4037.52.camel@citrix.com> <551D4888.1020309@gmail.com> <553F6271.4010308@citrix.com> <553FB23F.7090200@citrix.com> <5540C6D5.9020400@citrix.com> <5540DE16.4090900@citrix.com> <55411D1F.4090308@citrix.com> <5541FF51.6060907@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Stefano Stabellini Cc: Ian Campbell , Vijay Kilari , Prasun Kapoor , Vijaya Kumar K , Julien Grall , Tim Deegan , "xen-devel@lists.xen.org" , Stefano Stabellini , manish.jaggi@caviumnetworks.com List-Id: xen-devel@lists.xenproject.org On 30/04/2015 11:15, Stefano Stabellini wrote: >> As said earlier, the number of DevBits implemented by the ITS can be limited >> (see GITS_TYPER.Devbits). >> >> If the devid is not within this range, the ITS won't recognize the value and >> won't be able to send the interrupt. >> >> So this is clearly not the right value. > > Sure, in that case the maximum value allowed by GITS_TYPER.Devbits. > Vijay, what is the value of GITS_TYPER.Devbits on your platform? How can you be sure that this value won't be use for a device on this platform? Regards, -- Julien Grall