Re: [Xen-devel] Re: [PATCH 0/4] stubdom-dm: Support live migration of HVM domain with stubdom-dm

[Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>]

Ian Jackson, le Tue 16 Dec 2008 14:04:53 +0000, a écrit :
> Samuel Thibault writes ("[Xen-devel] Re: [PATCH 0/4] stubdom-dm: Support live 
> migration of HVM domain with stubdom-dm"):
> > This works thanks to the few lines at the end of the
> > cpu_physical_memory_rw() function that tell the hypervisor about
> > modified memory.  Actually, the plan was even to use that bit of
> > code in all cases (not only non-stubdom), so as to get rid of the
> > logdirty shared buffer completely.
> 
> I take it you're referring to this:
> 
> #ifdef CONFIG_STUBDOM
>     if (logdirty_bitmap != NULL)
>         xc_hvm_modified_memory(xc_handle, domid, _addr >> TARGET_PAGE_BITS,
>                 ((_addr + _len + TARGET_PAGE_SIZE - 1) >> TARGET_PAGE_BITS)
>                     - (_addr >> TARGET_PAGE_BITS));
> #endif

Yes, precisely.

Samuel

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