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Date: Wed, 11 May 2016 21:36:31 +1000
From: Paul Mackerras <paulus@ozlabs.org>
To: Laurent Vivier <lvivier@redhat.com>
Cc: kvm-ppc@vger.kernel.org, kvm@vger.kernel.org,
 Gleb Natapov <gleb@kernel.org>, Paolo Bonzini <pbonzini@redhat.com>,
 Alexander Graf <agraf@suse.com>,
 Benjamin Herrenschmidt <benh@kernel.crashing.org>,
 Michael Ellerman <mpe@ellerman.id.au>,
 linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
 dgibson@redhat.com, thuth@redhat.com
Subject: Re: [PATCH v2] kvm-pr: manage single-step mode
Message-ID: <20160511113631.GA10249@fergus.ozlabs.ibm.com>
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On Fri, Apr 08, 2016 at 06:05:00PM +0200, 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@redhat.com>

Thanks, applied to my kvm-ppc-next branch.

Paul.