From mboxrd@z Thu Jan 1 00:00:00 1970 From: catalin.marinas@arm.com (Catalin Marinas) Date: Fri, 16 Dec 2011 16:54:20 +0000 Subject: [Xen-devel] [ANNOUNCE] Xen port to Cortex-A15 / ARMv7 with virt extensions In-Reply-To: <4EEB673D.3040608@citrix.com> References: <201111292129.20444.arnd@arndb.de> <4EEB673D.3040608@citrix.com> Message-ID: <20111216165420.GE6342@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Fri, Dec 16, 2011 at 03:43:57PM +0000, David Vrabel wrote: > On 30/11/11 14:11, Catalin Marinas wrote: > > On 30 November 2011 11:39, Stefano Stabellini > > wrote: > >> A git branch is available here (not ready for submission): > >> > >> git://xenbits.xen.org/people/sstabellini/linux-pvhvm.git arm > >> > >> the branch above is based on git://linux-arm.org/linux-2.6.git arm-lpae, > >> even though guests don't really need lpae support to run on Xen. > > > > Indeed, you don't really need LPAE. What you may need though is > > generic timers support for A15, it would allow less Hypervisor traps. > > For up-to-date architecture patches (well, development tree, not > > guaranteed to be stable), I would recommend this (they get into > > mainline at some point): > > > > http://git.kernel.org/?p=linux/kernel/git/cmarinas/linux-arm-arch.git;a=summary > > > > Either use master or just cherry-pick the branches that you are interested in. > > Which branches are required for the Versatile Express with the > Cortex-A15? I merged linux-arm-arch/arm-arch/vexpress in That's the branch if you only need VE and A15 support > but I get a > instruction fault immediately after branching to __mmap_switched. > > Is it not setting up the MMU correctly? Do you run this on a software model? What config options do you use? You would need to enable VEXPRESS_EXTENDED_MEMORY_MAP and ARCH_VEXPRESS_CA15X4. -- Catalin