On 14 April 2015 at 20:13, Peter Maydell <peter.mayd...@linaro.org> wrote: > On 30 October 2014 at 22:12, Greg Bellows <greg.bell...@linaro.org> wrote: >> From: Fabian Aggeler <aggel...@ethz.ch> >> >> Interrupt Group Registers (previously called Interrupt Security >> Registers) as defined in GICv1 with Security Extensions or GICv2 allow >> to configure interrupts as Secure (Group0) or Non-secure (Group1). >> In GICv2 these registers are implemented independent of the existence of >> Security Extensions.
I've just noticed that these are actually already implemented in KVM's in-kernel GICv2 model and exposed to userspace, so we should have another patch which makes them be properly handled in kvm_arm_gic_get/put. Other than that I think the only KVM-related change we need is going to be to give the arm_gic_kvm a 'secure' property (which gives a realize error if it's set to 'true'), purely to maintain consistency of interface between it and the fully-emulated GICv2. (The view you get from a KVM vGIC is basically a v2 GIC with grouping but no TZ support.) -- PMM
