On 10/10/2011 09:58 AM, Avi Kivity wrote:
On 10/10/2011 04:54 PM, Anthony Liguori wrote:
On 10/04/2011 05:20 PM, Marcelo Tosatti wrote:
On Tue, Oct 04, 2011 at 07:53:42PM +0200, Avi Kivity wrote:
On 10/03/2011 10:55 PM, Marcelo Tosatti wrote:
From: "Liu, Jinsong"<jinsong.liu@xxxxxxxxx>
KVM add emulation of lapic tsc deadline timer for guest.
This patch is co-operation work at qemu side.
-#define CPU_SAVE_VERSION 12
+#define CPU_SAVE_VERSION 13
Unfortunate. Can't we use subsections?
Yes, i'll look into it tomorrow.
Subsections are still broken at the moment although Juan has some patches.
Bumping the version is the safe thing to do.
It's irreversible, once we release a version with a bumped ID we can't go back.
But the question is whether we've bumped *any* versions of common devices since
0.15 because if so, it's moot here. Once any device bumps a version id,
migration is incompatible.
Subsections are nice for stable branches, but they don't solve inter-version
compatibility. Most importantly, subsections are broken today so until we
straighten things out there, we can't rely on them.
Regards,
Anthony Liguori
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