Re: [PATCH] tools/xenstore: don't store domU's mfn of ring page in xensotred

2020-04-29 Thread Igor Druzhinin
On 29/04/2020 14:06, Jürgen Groß wrote: > On 29.04.20 14:49, Igor Druzhinin wrote: >> On 29/04/2020 13:29, Jürgen Groß wrote: >>> On 29.04.20 13:04, Igor Druzhinin wrote: >> >> Yes, XAPI is doing soft reset differently from libxl. You need to keep >> xenstore >> data to at least keep backends work

Re: [PATCH] tools/xenstore: don't store domU's mfn of ring page in xensotred

2020-04-29 Thread Igor Druzhinin
riginal Message- >>>> From: Igor Druzhinin >>>> Sent: 29 April 2020 13:50 >>>> To: Jürgen Groß ; Julien Grall ; Julien >>>> Grall >>>> >>>> Cc: xen-devel ; Ian Jackson >>>> ; Wei Liu >>>> ; andrew.

RE: [PATCH] tools/xenstore: don't store domU's mfn of ring page in xensotred

2020-04-29 Thread Paul Durrant
13:50 > >> To: Jürgen Groß ; Julien Grall ; Julien > >> Grall > >> > >> Cc: xen-devel ; Ian Jackson > >> ; Wei Liu > >> ; andrew.coop...@citrix.com; Paul Durrant > >> Subject: Re: [PATCH] tools/xenstore: don't store domU's mfn of

Re: [PATCH] tools/xenstore: don't store domU's mfn of ring page in xensotred

2020-04-29 Thread Igor Druzhinin
op...@citrix.com; Paul Durrant >> Subject: Re: [PATCH] tools/xenstore: don't store domU's mfn of ring page in >> xensotred >> >> On 29/04/2020 13:29, Jürgen Groß wrote: >>> >>> Wei, Ian, can you please tell me where I'm wrong? >>> >

Re: [PATCH] tools/xenstore: don't store domU's mfn of ring page in xensotred

2020-04-29 Thread Jürgen Groß
On 29.04.20 14:49, Igor Druzhinin wrote: On 29/04/2020 13:29, Jürgen Groß wrote: On 29.04.20 13:04, Igor Druzhinin wrote: On 29/04/2020 11:49, Jürgen Groß wrote: On 29.04.20 12:39, Igor Druzhinin wrote: On 29/04/2020 10:22, Julien Grall wrote: Hi Juergen, On 29/04/2020 06:51, Jürgen Groß wr

RE: [PATCH] tools/xenstore: don't store domU's mfn of ring page in xensotred

2020-04-29 Thread Paul Durrant
> -Original Message- > From: Igor Druzhinin > Sent: 29 April 2020 13:50 > To: Jürgen Groß ; Julien Grall ; Julien Grall > > Cc: xen-devel ; Ian Jackson > ; Wei Liu > ; andrew.coop...@citrix.com; Paul Durrant > Subject: Re: [PATCH] tools/xenstore: don't

Re: [PATCH] tools/xenstore: don't store domU's mfn of ring page in xensotred

2020-04-29 Thread Igor Druzhinin
On 29/04/2020 13:29, Jürgen Groß wrote: > On 29.04.20 13:04, Igor Druzhinin wrote: >> On 29/04/2020 11:49, Jürgen Groß wrote: >>> On 29.04.20 12:39, Igor Druzhinin wrote: On 29/04/2020 10:22, Julien Grall wrote: > Hi Juergen, > > On 29/04/2020 06:51, Jürgen Groß wrote: >> >

Re: [PATCH] tools/xenstore: don't store domU's mfn of ring page in xensotred

2020-04-29 Thread Jürgen Groß
On 29.04.20 13:04, Igor Druzhinin wrote: On 29/04/2020 11:49, Jürgen Groß wrote: On 29.04.20 12:39, Igor Druzhinin wrote: On 29/04/2020 10:22, Julien Grall wrote: Hi Juergen, On 29/04/2020 06:51, Jürgen Groß wrote: Recreating the event channel would be fine, but I don't see why it would eve

Re: [PATCH] tools/xenstore: don't store domU's mfn of ring page in xensotred

2020-04-29 Thread Igor Druzhinin
On 29/04/2020 11:49, Jürgen Groß wrote: > On 29.04.20 12:39, Igor Druzhinin wrote: >> On 29/04/2020 10:22, Julien Grall wrote: >>> Hi Juergen, >>> >>> On 29/04/2020 06:51, Jürgen Groß wrote: Recreating the event channel would be fine, but I don't see why it would ever be needed. And

Re: [PATCH] tools/xenstore: don't store domU's mfn of ring page in xensotred

2020-04-29 Thread Jürgen Groß
On 29.04.20 12:39, Igor Druzhinin wrote: On 29/04/2020 10:22, Julien Grall wrote: Hi Juergen, On 29/04/2020 06:51, Jürgen Groß wrote: Recreating the event channel would be fine, but I don't see why it would ever be needed. And XS_INTRODUCE is called only at domain creation time today, so ther

Re: [PATCH] tools/xenstore: don't store domU's mfn of ring page in xensotred

2020-04-29 Thread Igor Druzhinin
On 29/04/2020 10:22, Julien Grall wrote: > Hi Juergen, > > On 29/04/2020 06:51, Jürgen Groß wrote: >> >> Recreating the event channel would be fine, but I don't see why it >> would ever be needed. And XS_INTRODUCE is called only at domain creation >> time today, so there is obviously no need for r

Re: [PATCH] tools/xenstore: don't store domU's mfn of ring page in xensotred

2020-04-29 Thread Julien Grall
Hi Juergen, On 29/04/2020 06:51, Jürgen Groß wrote: On 28.04.20 22:55, Julien Grall wrote: Hi Juergen, On Tue, 28 Apr 2020 at 16:53, Juergen Gross wrote: The XS_INTRODUCE command has two parameters: the mfn (or better: gfn) of the domain's xenstore ring page and the event channel of the dom

Re: [PATCH] tools/xenstore: don't store domU's mfn of ring page in xensotred

2020-04-28 Thread Jürgen Groß
On 28.04.20 22:55, Julien Grall wrote: Hi Juergen, On Tue, 28 Apr 2020 at 16:53, Juergen Gross wrote: The XS_INTRODUCE command has two parameters: the mfn (or better: gfn) of the domain's xenstore ring page and the event channel of the domain for communicating with Xenstore. The gfn is not r

Re: [PATCH] tools/xenstore: don't store domU's mfn of ring page in xensotred

2020-04-28 Thread Julien Grall
Hi Juergen, On Tue, 28 Apr 2020 at 16:53, Juergen Gross wrote: > > The XS_INTRODUCE command has two parameters: the mfn (or better: gfn) > of the domain's xenstore ring page and the event channel of the > domain for communicating with Xenstore. > > The gfn is not really needed. It is stored in th

Re: [PATCH] tools/xenstore: don't store domU's mfn of ring page in xensotred

2020-04-28 Thread Andrew Cooper
On 28/04/2020 16:51, Juergen Gross wrote: > The XS_INTRODUCE command has two parameters: the mfn (or better: gfn) > of the domain's xenstore ring page and the event channel of the > domain for communicating with Xenstore. > > The gfn is not really needed. It is stored in the per-domain struct > in