Re: [Qemu-devel] [PATCH v4 40/47] Postcopy: Use helpers to map pages during migration

2014-11-25 Thread Dr. David Alan Gilbert
* David Gibson (da...@gibson.dropbear.id.au) wrote: > On Fri, Oct 03, 2014 at 06:47:46PM +0100, Dr. David Alan Gilbert (git) wrote: > > From: "Dr. David Alan Gilbert" > > > > In postcopy, the destination guest is running at the same time > > as it's receiving pages; as we receive new pages we mus

Re: [Qemu-devel] [PATCH v4 40/47] Postcopy: Use helpers to map pages during migration

2014-11-12 Thread David Gibson
On Fri, Oct 03, 2014 at 06:47:46PM +0100, Dr. David Alan Gilbert (git) wrote: > From: "Dr. David Alan Gilbert" > > In postcopy, the destination guest is running at the same time > as it's receiving pages; as we receive new pages we must put > them into the guests address space atomically to avoid

[Qemu-devel] [PATCH v4 40/47] Postcopy: Use helpers to map pages during migration

2014-10-03 Thread Dr. David Alan Gilbert (git)
From: "Dr. David Alan Gilbert" In postcopy, the destination guest is running at the same time as it's receiving pages; as we receive new pages we must put them into the guests address space atomically to avoid a running CPU accessing a partially written page. Use the helpers in postcopy-ram.c to