From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ian Campbell Subject: Re: [PATCH v5 2/3] arm: Allow the user to specify the GIC version Date: Tue, 7 Jul 2015 17:28:02 +0100 Message-ID: <1436286482.25646.267.camel@citrix.com> References: <1436286154-15696-1-git-send-email-julien.grall@citrix.com> <1436286154-15696-3-git-send-email-julien.grall@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail6.bemta14.messagelabs.com ([193.109.254.103]) by lists.xen.org with esmtp (Exim 4.72) (envelope-from ) id 1ZCVja-0001kt-Q1 for xen-devel@lists.xenproject.org; Tue, 07 Jul 2015 16:28:38 +0000 In-Reply-To: <1436286154-15696-3-git-send-email-julien.grall@citrix.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Julien Grall Cc: xen-devel@lists.xenproject.org, stefano.stabellini@citrix.com, Ian Jackson , Wei Liu List-Id: xen-devel@lists.xenproject.org On Tue, 2015-07-07 at 17:22 +0100, Julien Grall wrote: > A platform may have a GIC compatible with previous version of the > device. > > This is allow to virtualize an unmodified OS on new hardware if the GIC > is compatible with older version. > > When a guest is created, the vGIC will emulate same version as the > hardware. Although, the user can specify in the configuration file the > preferred version (currently only GICv2 and GICv3 are supported). > > Signed-off-by: Julien Grall > Cc: Ian Jackson > Cc: Wei Liu Acked-by: Ian Campbell