xen-devel.lists.xenproject.org archive mirror
 help / color / mirror / Atom feed
From: Ian Campbell <ian.campbell@citrix.com>
To: Ian Jackson <Ian.Jackson@eu.citrix.com>
Cc: xen-devel@lists.xensource.com, Wei Liu <wei.liu2@citrix.com>,
	Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Subject: Re: [PATCH 25/28] libxl: emuids: Perhaps change dm xs control path
Date: Fri, 8 Jan 2016 14:36:16 +0000	[thread overview]
Message-ID: <1452263776.29416.42.camel@citrix.com> (raw)
In-Reply-To: <22159.50124.926979.525062@mariner.uk.xensource.com>

On Fri, 2016-01-08 at 14:12 +0000, Ian Jackson wrote:
> Ian Campbell writes ("Re: [PATCH 25/28] libxl: emuids: Perhaps change dm
> xs control path"):
> > So, do I understand correctly that the states (combinations of bits)
> > are:
> 
> No.
> 
> > Describing SPLIT as an "ID" is a bit odd (it's a kind of meta thing)
> > but I
> > suppose I can see why it is done this way. An alternative might be to
> > have
> > a separate bit for the PV|DM case together, maybe you discarded that
> > possibility though?
> 
> Perhaps things will be clearer with this comment, which I've just
> added to add in this patch:

Much thanks. One nit:
> 
>   * In xenstore we record which qemus a domain has.  This is necessary
>   * for correct teardown.  And, we also record whether the xenstore
>   * paths are unified, as discussed above, so that subsequent libxl
>   * operations can do the right thing.  This is what the EMUID_SPLIT
>   * flag is for.

EMUID_SPLIT actually records the inverse (i.e. that they are split, rather
than unified as the previous text is discussing).

I knew what you meant though, and clarifying it could well make it less
obvious I suspect.

Ian.

_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xen.org
http://lists.xen.org/xen-devel

  reply	other threads:[~2016-01-08 14:36 UTC|newest]

Thread overview: 61+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-12-22 18:44 [RFC PATCH v6 00/28] libxl: Deprivilege qemu Ian Jackson
2015-12-22 18:44 ` [PATCH 01/28] libxl: Move FILLZERO up in libxl_internal.h Ian Jackson
2016-01-07 17:08   ` Ian Campbell
2015-12-22 18:44 ` [PATCH 02/28] libxl: libxl_types_internal.idl: Add Emacs mode comment Ian Jackson
2016-01-07 17:09   ` Ian Campbell
2015-12-22 18:44 ` [PATCH 03/28] libxl: Provide libxl__dm_support_* Ian Jackson
2016-01-07 17:13   ` Ian Campbell
2016-01-08 12:13     ` Ian Jackson
2016-01-11 17:00     ` Jim Fehlig
2016-01-14 10:14       ` Ian Campbell
2016-01-14 18:31         ` Jim Fehlig
2016-01-15  9:56           ` Ian Campbell
2016-01-15 14:54             ` Jim Fehlig
2015-12-22 18:44 ` [PATCH 04/28] libxl: Invoke libxl__dm_support_* Ian Jackson
2015-12-22 18:44 ` [PATCH 05/28] libxl: libxl__spawn_stub_dm: Introduce `dmpath' Ian Jackson
2015-12-22 18:44 ` [PATCH 06/28] libxl: qemu_pci_*: Introduce DMPATH local macro, twice Ian Jackson
2015-12-22 18:44 ` [PATCH 07/28] libxl: libxl__device_model_xs_path: Add emulator_id parameter Ian Jackson
2015-12-22 18:44 ` [PATCH 08/28] libxl: libxl__destroy_domid: Bring dm destruction together Ian Jackson
2015-12-22 18:44 ` [PATCH 09/28] libxl: Move some error handling and cleanup into libxl__destroy_device_model Ian Jackson
2015-12-22 18:44 ` [PATCH 10/28] libxl: kill_device_model: Silently tolerate ENOENT on pid xs path Ian Jackson
2015-12-22 18:44 ` [PATCH 11/28] libxl: emuids: Pass correct emuid to internal functions Ian Jackson
2015-12-22 18:44 ` [PATCH 12/28] libxl: Use libxl__device_model_xs_path in libxl__spawn_qdisk_backend Ian Jackson
2015-12-22 18:44 ` [PATCH 13/28] libxl: emuids: Record which emuids we have started to create Ian Jackson
2015-12-22 18:44 ` [PATCH 14/28] libxl: emuids: Pass emuid to dm destruction Ian Jackson
2015-12-22 18:44 ` [PATCH 15/28] libxl: emuids: Pass emuid to device model argument construction Ian Jackson
2015-12-22 18:44 ` [PATCH 16/28] libxl: emuids: Provide libxl__dm_xs_path_rel Ian Jackson
2015-12-22 18:44 ` [PATCH 17/28] libxl: emuids: Do not open-code device-model/%u in libxl__destroy_qdisk_backend Ian Jackson
2015-12-22 18:44 ` [PATCH 18/28] libxl: emuids: Change pid path in xenstore Ian Jackson
2015-12-22 18:44 ` [PATCH 19/28] libxl: Improve libxl__destroy_device_model Ian Jackson
2015-12-22 18:44 ` [PATCH 20/28] libxl: domcreate_dm_support_checked: Introduce `goto out' Ian Jackson
2015-12-22 18:44 ` [PATCH 21/28] libxl: dm user: Reject attempts to set user!=root with qemu trad Ian Jackson
2016-01-07 17:20   ` Ian Campbell
2016-01-08 12:16     ` Ian Jackson
2016-01-08 12:23       ` Ian Campbell
2015-12-22 18:44 ` [PATCH 22/28] libxl: dm user: Document the default Ian Jackson
2016-01-07 17:20   ` Ian Campbell
2015-12-22 18:44 ` [PATCH 23/28] libxl: dm user: Move user choice earlier, and fill in config Ian Jackson
2015-12-22 18:44 ` [PATCH 24/28] libxl: dm spawn records rc in state struct rather than passing as argument Ian Jackson
2015-12-22 18:45 ` [PATCH 25/28] libxl: emuids: Perhaps change dm xs control path Ian Jackson
2016-01-07 17:26   ` Ian Campbell
2016-01-08 14:12     ` Ian Jackson
2016-01-08 14:36       ` Ian Campbell [this message]
2016-01-08 14:45         ` Ian Jackson
2016-01-08 14:49           ` Ian Campbell
2015-12-22 18:45 ` [PATCH 26/28] libxl: spawns two QEMUs for HVM guests Ian Jackson
2016-01-07 17:28   ` Ian Campbell
2016-01-08 14:35     ` Ian Jackson
2016-01-08 14:52       ` Ian Campbell
2015-12-22 18:45 ` [PATCH 27/28] libxl: Limit qemu physmap entries Ian Jackson
2016-01-07 17:28   ` Ian Campbell
2015-12-22 18:45 ` [PATCH 28/28] libxl: xsrestrict QEMU Ian Jackson
2016-01-07 17:36   ` Ian Campbell
2016-01-08 14:38     ` Ian Jackson
2016-04-10 19:52   ` Stefano Stabellini
2016-01-07 16:19 ` [RFC PATCH v6 00/28] libxl: Deprivilege qemu Wei Liu
2016-01-07 16:23   ` Stefano Stabellini
2016-01-07 16:36     ` Ian Jackson
2016-04-10 19:36 ` Stefano Stabellini
2016-04-11 10:35   ` Wei Liu
2016-04-14 17:27   ` Ian Jackson
2016-04-28 14:32     ` Ian Jackson

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1452263776.29416.42.camel@citrix.com \
    --to=ian.campbell@citrix.com \
    --cc=Ian.Jackson@eu.citrix.com \
    --cc=stefano.stabellini@eu.citrix.com \
    --cc=wei.liu2@citrix.com \
    --cc=xen-devel@lists.xensource.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).