[libvirt] [PATCH 0/3] qemu: Don't call qemuMonitorGetCPUInfo to update vCPU halted state
Peter Krempa
pkrempa at redhat.com
Tue Nov 22 08:22:44 UTC 2016
On Mon, Nov 21, 2016 at 17:14:42 +0100, Viktor Mihajlovski wrote:
> On 21.11.2016 16:30, Peter Krempa wrote:
> > The original implementation reused qemuMonitorGetCPUInfo to update the halted
> > state. The function is very complex and should not be called all the time just
> > to update a trivial parameter.
> >
> > Add infrastructure to properly update the state without the need to match in
> > hotplug parameters.
> >
> > Peter Krempa (3):
> > qemu: monitor: Extract qemu cpu id along with other data
> > qemu: monitor: Extract halted state to a bitmap indexed by cpu id
> > qemu: domain: Refresh vcpu halted state using qemuMonitorGetCpuHalted
> >
> > src/qemu/qemu_domain.c | 20 ++++++++------------
> > src/qemu/qemu_domain.h | 1 +
> > src/qemu/qemu_monitor.c | 40 ++++++++++++++++++++++++++++++++++++++++
> > src/qemu/qemu_monitor.h | 3 +++
> > src/qemu/qemu_monitor_json.c | 3 +++
> > src/qemu/qemu_monitor_text.c | 11 +++++++++++
> > tests/qemumonitorjsontest.c | 8 ++++----
> > 7 files changed, 70 insertions(+), 16 deletions(-)
> >
> Could you please hold off pushing? I've just run a sniff test on s390x
> and see erratic values for halted. I'll try to investigate and get back
> to you.
I've already pushed it. The hiccup might be in the fallback code that
does not remember correctly the cpu numbers as reported by qemu.
I'll post patches if it's so.
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