From mboxrd@z Thu Jan 1 00:00:00 1970 From: Julien Grall Subject: Re: xen/arm: VCPUOP_register_vcpu_info fails with CONFIG_ARM64_64K_PAGES Date: Wed, 25 Mar 2015 13:03:36 +0000 Message-ID: <5512B228.7070109@linaro.org> References: <1427278223.10784.42.camel@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1427278223.10784.42.camel@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: Ian Campbell , Vijay Kilari Cc: Vijaya Kumar K , "xen-devel@lists.xen.org" , Stefano Stabellini , manish.jaggi@caviumnetworks.com, Stefano Stabellini List-Id: xen-devel@lists.xenproject.org Hi, On 25/03/15 10:10, Ian Campbell wrote: > On Wed, 2015-03-25 at 12:22 +0530, Vijay Kilari wrote: >> Hi, >> >> Dom0 fails to boot with Xen with CONFIG_ARM64_64K_PAGES enabled because of >> map_vcpu_info() make check of page offset based of PAGE_SIZE which is 4K in Xen. >> Is this know issue that is fixed?. I am using 4.5 rc1 Xen code base. > > Julien has done some work with 64K pages, but I don't know if he has > fixed this specific issue. In any case as it stands 64K pages are not > yet supported under Xen (it's mostly a kernel side issue though). This VCPUOP_register_vcpu issue is one problem among many others. I'm working on adding support for 64K pages with Xen in the kernel. So far, I have a guest booting with disk support and dom0 booting. Regards, -- Julien Grall