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Thu, 30 Jul 2020 18:14:56 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by aserp3030.oracle.com with ESMTP id 32hu5xrk1a-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 30 Jul 2020 18:14:56 +0000 Received: from abhmp0013.oracle.com (abhmp0013.oracle.com [141.146.116.19]) by userv0122.oracle.com (8.14.4/8.14.4) with ESMTP id 06UIEsD6021313; Thu, 30 Jul 2020 18:14:54 GMT Received: from [10.39.200.60] (/10.39.200.60) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Thu, 30 Jul 2020 11:14:54 -0700 Subject: Re: [PATCH V1 14/32] savevm: VMS_RESTART and cprsave restart To: Eric Blake , qemu-devel@nongnu.org References: <1596122076-341293-1-git-send-email-steven.sistare@oracle.com> <1596122076-341293-15-git-send-email-steven.sistare@oracle.com> From: Steven Sistare Organization: Oracle Corporation Message-ID: Date: Thu, 30 Jul 2020 14:14:51 -0400 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; 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Berrange" , Juan Quintela , =?UTF-8?Q?Philippe_Mathieu-Daud=c3=a9?= , "Michael S. Tsirkin" , "Dr. David Alan Gilbert" , Markus Armbruster , Alex Williamson , Stefan Hajnoczi , Paolo Bonzini , =?UTF-8?Q?Marc-Andr=c3=a9_Lureau?= , =?UTF-8?Q?Alex_Benn=c3=a9e?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 7/30/2020 12:22 PM, Eric Blake wrote: > On 7/30/20 10:14 AM, Steve Sistare wrote: >> Add the VMS_RESTART variant of vmstate, for use when upgrading qemu in place >> on the same host without a reboot.  Invoke it using: >>    cprsave restart >> >> VMS_RESTART supports guest ram mapped by private anonymous memory, versus >> VMS_REBOOT which requires that guest ram be mapped by persistent shared >> memory.  Subsequent patches complete its implementation. >> >> Signed-off-by: Steve Sistare >> --- > >> +++ b/qapi/migration.json >> @@ -1639,6 +1639,7 @@ >>   # >>   # @file: name of checkpoint file >>   # @mode: 'reboot' : checkpoint can be cprload'ed after a host kexec reboot. >> +#        'restart': checkpoint can be cprload'ed after restarting qemu. > > This should be a modification to an enum type (the 'CprMode' type I suggested earlier in the series). Will do - steve