From mboxrd@z Thu Jan 1 00:00:00 1970 From: Julien Grall Subject: Re: [PATCH RFC] xen/arm : emulation of arm's psci v0.2 standard Date: Fri, 20 Jun 2014 13:02:39 +0100 Message-ID: <53A422DF.7040007@linaro.org> References: <1403172863-8695-1-git-send-email-parth.dixit@linaro.org> <1403172863-8695-2-git-send-email-parth.dixit@linaro.org> <53A3125E.1050408@linaro.org> <53A325D2.3020905@linaro.org> 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 , Christoffer Dall Cc: Parth Dixit , xen-devel List-Id: xen-devel@lists.xenproject.org On 20/06/14 12:48, Stefano Stabellini wrote: >> And yes, the idea is to have a single device tree node, and then psci >> v0.1 only kernels can still use psci v0.1, and psci v0.2 can ignore >> the function IDs and use the ones defined as per the spec. > > OK. From the Xen POV we need to expose a psci node compatible with both > psci-0.2 and psci, because we want 3.15 to be able to boot with multiple > vcpus on Xen 4.5. > AFAIU parth's patch, this is already possible. He doesn't add the properties such as suspend because we don't support them on Xen for PSCI v0.1 -- Julien Grall