Am 06.12.2010 16:59, Chris Metcalf wrote: > On 12/6/2010 7:13 AM, Jan Kiszka wrote: >> Hi Chris, >> >> as I'm already running around, telling people that Tile might be the >> next arch to gain KVM support, I wanted to back this derived [1] >> information with some more details. Can you share some of your plans >> regarding this, either officially (LKML, kvm-devel) or yet privately? >> - What will be the level of support in the first version and long-term >> (CPU virtualization + I/O emulation, also I/O virtualization/ >> pass-though)? >> - What use cases do you target, and why do you plan to use KVM for >> them? >> - What use cases may not fit a KVM-based approach? >> >> The background of this questionnaire is not (yet) a concrete project >> based on a Tile processor and KVM. Right now I'm primarily promoting KVM >> for use cases beyond classic x86 server scenarios, both in-house as well >> as in the community. >> >> TiA! >> >> Best regards, >> Jan Kiszka >> >> [1] http://permalink.gmane.org/gmane.linux.kernel/1048568 > > We already have a hypervisor that is used for Tile, which allows us to do > client isolation and spatial multiplexing (i.e. splitting the cores among > different supervisors), and smooths over some of the more nitty-gritty > hardware issues to present an easier API to the client supervisor, e.g. > Linux. The supervisor is paravirtualized, i.e. aware of the hypervisor API > for page-table management and I/O access. > > But moving forward there is some appeal to using a standard virtualization > technology, and we picked KVM as the target that seemed best for us to > support. Some of the things this will facilitate for us include dynamic > reconfiguration of supervisor domains, sharing I/O devices between > supervisors, providing virtual devices to supervisors, virtual machine > migration/snapshots, etc. And, we'd like to support a standard management > interface such as the KVM interface, so our customers don't have to learn > how to manage the Tilera-specific hypervisor software. > > None of this is committed to any particular release schedule yet, but this > is the direction we are currently planning to head. > Thanks for the information! Sound thrilling, looking forward seeing this materializing. Jan -- Siemens AG, Corporate Technology, CT T DE IT 1 Corporate Competence Center Embedded Linux -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
