Re: [Qemu-devel] [PATCH v7 RESEND 5/5] hw/intc/arm_gicv3_kvm: Reset GICv3 cpu interface registers

[Peter Maydell]

On 16 February 2017 at 09:54, Vijay Kilari <address@hidden> wrote:
> On Tue, Feb 7, 2017 at 8:19 PM, Peter Maydell <address@hidden> wrote:
>> If you want to do nothing in a read/write function there are
>> already arm_cp_read_zero and arm_cp_write_ignore functions for
>> this. But using the ARM_CP_NOP flag is better still.
>
> With ARM_CP_NOP qemu fails to boot.
> qemu-system-aarch64: KVM_SET_DEVICE_ATTR failed: Invalid argument
> Group 6 attr 0x000000000000c665

Not clear to me why using ARM_CP_NOP should result in a KVM
call failure -- can you dig further into why that is happening?

thanks
-- PMM