On Sat, 1 Jun 2019 at 10:34, Alex Bennée <alex.ben...@linaro.org> wrote: > > > Peter Maydell <peter.mayd...@linaro.org> writes: > > Semihosting is a feature that works on all Arm CPUs > > regardless of which machine model you're using (or whether > > you're using softmmu or linux-user), so I think > > the machine's Kconfig fragment is the wrong place to try > > to pull it in. > > Although amusingly it doesn't work in kvm but perhaps it should?
It would be nice if it did, but the problem IIRC is that semihosting hooks either SVC or HLT instructions, and inside KVM both of those go to EL1, ie to the guest, and can't be trapped to KVM. thanks -- PMM
