From mboxrd@z Thu Jan 1 00:00:00 1970 From: catalin.marinas@arm.com (Catalin Marinas) Date: Mon, 17 Oct 2011 09:54:29 +0100 Subject: Update: ARM Sub-Architecture Maintainers workshop at Kernel Summit 2011 In-Reply-To: References: Message-ID: <20111017085429.GC3279@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Tue, Aug 30, 2011 at 07:00:16AM +0100, Grant Likely wrote: > Agenda proposals (Thanks to Nicolas and Olof): ... > - boot architecture status If there is still room on the agenda, I would like to get an agreement on the best way to deal with the Hypervisor mode - (1) start the kernel in Hyp mode or (2) have a standard HVC API in the board firmware to allow Linux (KVM, Xen) to take control of the Hyp mode. This could fit under the boot architecture discussion. For (1), it could be problematic as the boot loader (e.g. U-Boot) needs to be aware of the Hyp mode. The 2nd variant may be better but the API needs to be kept very simple. I know that neither KVM nor Xen for ARM are supported in the mainline kernel but silicon vendors are already working on Cortex-A15 platforms and it would be good if their firmware supports Linux virtualisation. Thanks. -- Catalin