From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paul Durrant Subject: [PATCH 0 of 4] Support for VM generation ID save/restore and migrate Date: Fri, 16 Dec 2011 14:45:13 +0000 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: xen-devel@lists.xensource.com Cc: paul.durrant@citrix.com List-Id: xen-devel@lists.xenproject.org This patch series adds support for preservation of the VM generation ID buffer address in xenstore across save/restore and migrate, and also code to increment the value in all cases except for migration. Patch 1 modifies the guest ro and rw node creation to an open coding style and cleans up some extraneous node creation. Patch 2 modifies creation of the hvmloader key in xenstore and adds creation of a new read/write hvmloader/generation-id-addr key. Patch 3 changes hvmloader to use the new key (as opposed to the old data/generation-id key). Note that it is safe to apply this patch independently of the others but it logically belongs at this position in the series. Patch 4 adds the infrastructure to save and restore the VM generation ID address in xenstore and the code to increment the value.