RE: Switching from writeable pagetable toshadowlog-dirtyatruntime

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RE: Switching from writeable pagetable toshadowlog-dirtyatruntime

Ian Pratt
 
> I don't think we use log-dirty shadow mode - at least when
> setting up VMX domains; we only use shadow translate and
> external modes.  See
> vmx_final_setup_guest() in xen/arch/x86/domain.c.  I searched
> through the code for 32-bit x86, and I don't recall ever
> seeing this log-dirty mode be enabled.  When should we use
> log-dirty shadow mode ?

log-dirty guest-refcount shadow mode is used during live migration of
paravirtualized guests.

Ian

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