Re: [PATCH v1 1/2] KVM: arm64: handle single-stepping trapped instructions

[Julien Thierry]

On 06/10/17 12:39, Alex BennÃe wrote:
> If we are using guest debug to single-step the guest we need to ensure
> we exit after emulating the instruction. This only affects
> instructions completely emulated by the kernel. For userspace emulated
> instructions we need to exit and return to complete the emulation.
>
> We fake debug.arch.hsr to contain ESR_ELx_EC_SOFTSTP_LOW so QEMU knows
> it was a single-step event (and without altering the userspace ABI).
>
> Signed-off-by: Alex BennÃe <alex.bennee@xxxxxxxxxx>

Reviewed-by: Julien Thierry <julien.thierry@xxxxxxx>

Thanks,

--
Julien Thierry