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xen-devel
RE: [Xen-devel] [Question] vcpu-set before or after xen_pause_requested
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To: |
"Liu, Jinsong" <jinsong.liu@xxxxxxxxx> |
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Subject: |
RE: [Xen-devel] [Question] vcpu-set before or after xen_pause_requested |
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From: |
Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx> |
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Date: |
Mon, 19 Apr 2010 16:48:07 +0100 |
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Cc: |
xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Keir Fraser <keir.fraser@xxxxxxxxxxxxx>, "Zhai, Edwin" <edwin.zhai@xxxxxxxxx>, "Jiang, Yunhong" <yunhong.jiang@xxxxxxxxx> |
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Mon, 19 Apr 2010 08:49:03 -0700 |
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<EB8593BCECAB3D40A8248BE0B6400A38469C6F70@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx> <19399.7706.36343.487108@xxxxxxxxxxxxxxxxxxxxxxxx> <BC00F5384FCFC9499AF06F92E8B78A9E026FAC6041@xxxxxxxxxxxxxxxxxxxxxxxxxxxx> |
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Liu, Jinsong writes ("RE: [Xen-devel] [Question] vcpu-set before or after
xen_pause_requested"):
...
> We keep same (HVM) xm command --> xend server --> xenstore path as
> PV domain. At /local/domain/(domid)/cpu, we setup vcpu watch and
> handle at qemu side.
I've looked at your patch 2 and it's not correct because there is no
acknowledgement back to the utility which changes xenstore. You have
to close the loop, if for no other reason than if there are two
xenstore changes in a row which the receiving qemu-dm only gets around
to dealing with after the second, it will see only the second value.
How does the PV vcpu protocol deal with this ? Doesn't a PV guest
find out about VCPU changes from Xen ?
Ian.
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- [Xen-devel] [Question] vcpu-set before or after xen_pause_requested, Liu, Jinsong
- [Xen-devel] Re: [Question] vcpu-set before or after xen_pause_requested, Keir Fraser
- Re: [Xen-devel] [Question] vcpu-set before or after xen_pause_requested, Ian Jackson
- RE: [Xen-devel] [Question] vcpu-set before or after xen_pause_requested, Liu, Jinsong
- RE: [Xen-devel] [Question] vcpu-set before or after xen_pause_requested,
Ian Jackson <=
- RE: [Xen-devel] [Question] vcpu-set before or after xen_pause_requested, Liu, Jinsong
- RE: [Xen-devel] [Question] vcpu-set before or after xen_pause_requested, Ian Jackson
- RE: [Xen-devel] [Question] vcpu-set before or after xen_pause_requested, Liu, Jinsong
- RE: [Xen-devel] [Question] vcpu-set before or after xen_pause_requested, Ian Jackson
- RE: [Xen-devel] [Question] vcpu-set before or after xen_pause_requested, Liu, Jinsong
- RE: [Xen-devel] [Question] vcpu-set before or after xen_pause_requested, Ian Jackson
- RE: [Xen-devel] [Question] vcpu-set before or after xen_pause_requested, Liu, Jinsong
- RE: [Xen-devel] [Question] vcpu-set before or after xen_pause_requested, Ian Jackson
- RE: [Xen-devel] [Question] vcpu-set before or after xen_pause_requested, Liu, Jinsong
- RE: [Xen-devel] [Question] vcpu-set before or after xen_pause_requested, Jiang, Yunhong
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