On 08.04.2016 18:05, Laurent Vivier wrote: > Until now, when we connect gdb to the QEMU gdb-server, the > single-step mode is not managed. > > This patch adds this, only for kvm-pr: > > If KVM_GUESTDBG_SINGLESTEP is set, we enable single-step trace bit in the > MSR (MSR_SE) just before the __kvmppc_vcpu_run(), and disable it just after. > In kvmppc_handle_exit_pr, instead of routing the interrupt to > the guest, we return to host, with KVM_EXIT_DEBUG reason. > > Signed-off-by: Laurent Vivier <lvivier@xxxxxxxxxx> > --- > v2: split BOOK3S_INTERRUPT_MACHINE_CHECK and BOOK3S_INTERRUPT_TRACE > > arch/powerpc/kvm/book3s_pr.c | 32 +++++++++++++++++++++++++++++++- > 1 file changed, 31 insertions(+), 1 deletion(-) Reviewed-by: Thomas Huth <thuth@xxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
