RE: [Xen-devel] Switching from writeable pagetable toshadowlog-d

To:	"Khoa Huynh" <khoa@xxxxxxxxxx>, "Xin, Xiaohui" <xiaohui.xin@xxxxxxxxx>
Subject:	RE: [Xen-devel] Switching from writeable pagetable toshadowlog-dirtyatruntime
From:	"Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>
Date:	Sat, 15 Oct 2005 00:27:51 +0100
Cc:	xen-devel@xxxxxxxxxxxxxxxxxxx, "Nakajima, Jun" <jun.nakajima@xxxxxxxxx>, xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
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Thread-topic:	[Xen-devel] Switching from writeable pagetable toshadowlog-dirtyatruntime

 
> 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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RE: [Xen-devel] Switching from writeable pagetable toshadowlog-dirtyatru