From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ian Campbell Subject: Re: Hotplugged devices in Xen 4.5 and domain reboot Date: Wed, 2 Dec 2015 09:30:26 +0000 Message-ID: <1449048626.15768.158.camel@citrix.com> References: <20151201140208.GA25722@citrix.com> <20151201152910.GW21588@citrix.com> <565DCF60.3020001@globallogic.com> <565DDE4F.2060401@FreeBSD.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <565DDE4F.2060401@FreeBSD.org> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Roger Pau =?ISO-8859-1?Q?Monn=E9?= , Iurii Mykhalskyi , Wei Liu Cc: Pavlo Suikov , Ian Jackson , Andrii Anisov , xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org T24gVHVlLCAyMDE1LTEyLTAxIGF0IDE4OjUyICswMTAwLCBSb2dlciBQYXUgTW9ubsOpIHdyb3Rl Ogo+IEVsIDAxLzEyLzE1IGEgbGVzIDE3LjQ4LCBJdXJpaSBNeWtoYWxza3lpIGhhIGVzY3JpdDoK PiA+ID4gRG9lcyBzb21ldGhpbmcgbGlrZSB0aGUgZm9sbG93aW5nIHdvcms/IElmIG5vdCwgY291 bGQgeW91IHBhc3RlIHRoZQo+ID4gPiBlcnJvciB3aGVuIHJ1bm5pbmcgaXQgd2l0aCAtdnZ2Lgo+ ID4gPiAKPiA+ID4geGwgYmxvY2stYXR0YWNoIERvbVUKPiA+ID4gZm9ybWF0PXJhdyx2ZGV2PWhk YyxhY2Nlc3M9cncsYmFja2VuZD1Eb21ELHRhcmdldD0vcGF0aC90by9kZXYKPiA+IEluIGRvbTAg d2UgaGF2ZSBuZXh0IGlzc3VlOgo+ID4gL2xpYnhsOiBlcnJvcjogbGlieGxfZGV2aWNlLmM6Mjgz OmxpYnhsX19kZXZpY2VfZGlza19zZXRfYmFja2VuZDogRGlzawo+ID4gdmRldj14dmRhMTAgZmFp bGVkIHRvIHN0YXQ6IC9kZXYvc2RhMTogTm8gc3VjaCBmaWxlIG9yIGRpcmVjdG9yeS8vLQo+ID4g L3RoaXMgaXNzdWUgb2NjdXJzIGR1ZSB0byBtaXNzaW5nIC9kZXYvc2RhMSBkZXZpY2UgKGFsbCBo YXJkd2FyZSBhcmUKPiA+IHBsYWNlZCBpbiBEb21EIGRvbWFpbikuCj4gCj4gSSdtIG5vdCBzdXJl IGhvdyBjYW4geW91IGdldCB0byB0aGlzIHBhdGgsIHRoZSBsaWJ4bCBjaHVuayBpbiAKPiBzdGFi bGUtNC41IGlzOgo+IAo+IDI3McKgwqDCoMKgwqBpZiAoZGlzay0+Zm9ybWF0ID09IExJQlhMX0RJ U0tfRk9STUFUX0VNUFRZKSB7Cj4gMjcywqDCoMKgwqDCoMKgwqDCoMKgaWYgKCFkaXNrLT5pc19j ZHJvbSkgewo+IDI3M8KgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgTE9HKEVSUk9SLCAiRGlzayB2 ZGV2PSVzIGlzIGVtcHR5IGJ1dCBub3QgY2Ryb20iLCBkaXNrLQo+ID52ZGV2KTsKPiAyNzTCoMKg wqDCoMKgwqDCoMKgwqDCoMKgwqDCoHJldHVybiBFUlJPUl9JTlZBTDsKPiAyNzXCoMKgwqDCoMKg wqDCoMKgwqB9Cj4gMjc2wqDCoMKgwqDCoMKgwqDCoMKgbWVtc2V0KCZhLnN0YWIsIDAsIHNpemVv ZihhLnN0YWIpKTsKPiAyNzfCoMKgwqDCoMKgfSBlbHNlIGlmICgoZGlzay0+YmFja2VuZCA9PSBM SUJYTF9ESVNLX0JBQ0tFTkRfVU5LTk9XTiB8fAo+IDI3OMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDC oMKgwqDCoMKgwqBkaXNrLT5iYWNrZW5kID09IExJQlhMX0RJU0tfQkFDS0VORF9QSFkpICYmCj4g Mjc5wqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqBkaXNrLT5iYWNrZW5kX2RvbWlkID09 IExJQlhMX1RPT0xTVEFDS19ET01JRCAmJgo+IDI4MMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg wqDCoMKgIWRpc2stPnNjcmlwdCkgewo+IDI4McKgwqDCoMKgwqDCoMKgwqDCoGlmIChzdGF0KGRp c2stPnBkZXZfcGF0aCwgJmEuc3RhYikpIHsKPiAyODLCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDC oExPR0UoRVJST1IsICJEaXNrIHZkZXY9JXMgZmFpbGVkIHRvIHN0YXQ6ICVzIiwKPiAyODPCoMKg wqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoGRpc2stPnZkZXYs IGRpc2stPnBkZXZfcGF0aCk7Cj4gMjg0wqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqByZXR1cm4g RVJST1JfSU5WQUw7Cj4gMjg1wqDCoMKgwqDCoMKgwqDCoMKgfQo+IDI4NsKgwqDCoMKgwqB9Cj4g Cj4gU28gaXQgc2VlbXMgdGhhdCBibG9jay1hdHRhY2ggaXMgaWdub3JpbmcgdGhlICdiYWNrZW5k PWZvbycgZmllbGQgaW4gCj4gdGhlIGRpc2sgY29uZmlndXJhdGlvbj8KPiAKPiBDYW4geW91IHBh c3RlIHRoZSBmdWxsIG91dHB1dCBvZiB0aGUgZXhlY3V0aW9uIHdpdGggLXZ2dj8KCkFsc28gYSBk dW1teSBhdHRhY2ggd2lsbCBwcmludCB0aGUgcGFyc2VkIGpzb24gb2YgdGhlIHJlcXVlc3RlZCBz cGVjLCBlLmcuOgoKIyB4bCAtTiBibG9jay1hdHRhY2ggMCBmb3JtYXQ9cmF3LHZkZXY9aGRjLGFj Y2Vzcz1ydyxiYWNrZW5kPURvbUQsdGFyZ2V0PS9wYXRoL3RvL2RldgpkaXNrOiB7CsKgwqDCoMKg ImJhY2tlbmRfZG9tbmFtZSI6ICJEb21EIiwKwqDCoMKgwqAicGRldl9wYXRoIjogIi9wYXRoL3Rv L2RldiIsCsKgwqDCoMKgInZkZXYiOiAiaGRjIiwKwqDCoMKgwqAiZm9ybWF0IjogInJhdyIsCsKg wqDCoMKgInJlYWR3cml0ZSI6IDEKfQoKSSdtIG5vdCBzdXJlIGlmIC12dnYgb24gYSBwcm9wZXIg YXR0YWNoIHdpbGwgZG8gdGhlIHNhbWUgaW4gNC41LCBzbyBoYXZpbmcKdGhlIG91dHB1dCBvZiBi b3RoIHdvdWxkIGJlIHVzZWZ1bC4KCklhbi4KPiAKX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlz dHMueGVuLm9yZwpodHRwOi8vbGlzdHMueGVuLm9yZy94ZW4tZGV2ZWwK