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
Date: Wed, 11 May 2016 21:36:31 +1000 [thread overview]
Message-ID: <20160511113631.GA10249@fergus.ozlabs.ibm.com> (raw)
In-Reply-To: <1460131500-19560-1-git-send-email-lvivier@redhat.com>
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.
prev parent reply other threads:[~2016-05-11 11:38 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-08 16:05 [PATCH v2] kvm-pr: manage single-step mode Laurent Vivier
2016-04-11 4:02 ` David Gibson
2016-04-11 9:45 ` Thomas Huth
2016-05-11 11:36 ` Paul Mackerras [this message]
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