On 2014-09-29 12:41, Peter Maydell wrote: > On 29 September 2014 11:31, Jan Kiszka <jan.kis...@siemens.com> wrote: >> Sorry for hijacking the thread, but it seems related: These bits address >> AArch64, but what is the status of AArch32 /wrt hyp mode emulation? >> After playing with the "fast" model, I would be glad to find such >> support in QEMU rather sooner than later. > > I don't think anybody is currently working on that, > though it is an obvious gap to fill in at some point. > > I would caution against testing hypervisors on QEMU > rather than against hardware or the Fast Model, > except for anything other than basic smoke tests, > though -- there are a lot of complications and corner > cases in the architecture here and I expect we will > spend some time flushing out bugs as OSes expose > them.
No difference with nested virt for KVM: I fixed several corner cases along the way of getting Jailhouse running on x86. This time we already have a working baseline, so shaking out bugs might be even easier. What matters more mid- and long-term is the round-trip time, in fact. Jan -- Siemens AG, Corporate Technology, CT RTC ITP SES-DE Corporate Competence Center Embedded Linux
