Hi Peter, Laszlo, On 05/24/2018 03:07 PM, Peter Maydell wrote: > On 24 May 2018 at 13:59, Laszlo Ersek <ler...@redhat.com> wrote: >> On 05/24/18 11:11, Peter Maydell wrote: >>> Won't it also break a guest which is just Linux loaded not via >>> firmware which is an aarch32 kernel without LPAE support? >> >> Does such a thing exist? (I honestly have no clue.) > > Yes, it does; LPAE isn't a mandatory kernel config option. > This is why we have the machine 'highmem' option, so that > we can run on those kernels by not putting anything above > the 4G boundary. Looking back at the history on that, we > opted at the time for "default to highmem on, and if you're > running an non-lpae kernel you need to turn it off manually". > So we can handle those kernels by just not putting ECAM > above 4G if highmem is false.
Actually that's what my series does. If highmem=off then we use the legacy ECAM. Thanks Eric > > thanks > -- PMM >
