Re: [Xen-devel] [PATCH v7 09/18] tools/libxl: introduce libxl__domain_common_switch_qemu_logdirty()

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

On Fri, Jan 29, 2016 at 01:27:25PM +0800, Wen Congyang wrote:
> Secondary vm is running in COLO mode, we need to send secondary
> vm's dirty page information to primary host at checkpoint, so we
> have to enable qemu logdirty on secondary.
> 
> libxl__domain_suspend_common_switch_qemu_logdirty() is to enable
> qemu logdirty. But it uses libxl__domain_save_state, and calls
> libxl__xc_domain_saverestore_async_callback_done() before exits.
> This can not be used for secondary vm.
> 
> Update libxl__domain_suspend_common_switch_qemu_logdirty() to
> introduce a new API libxl__domain_common_switch_qemu_logdirty().
> This API only uses libxl__logdirty_switch, and calls
> lds->callback before exits. This new API will be used by the patch:
>   secondary vm suspend/resume/checkpoint code
> 
> Signed-off-by: Yang Hongyang <hongyang.yang@xxxxxxxxxxxx>
> Signed-off-by: Wen Congyang <wency@xxxxxxxxxxxxxx>
> CC: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>

Reivewed-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>

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