From: "Chun Yan Liu" <cyliu@suse.com>
To: xen-devel@lists.xen.org, Juergen Gross <JGross@suse.com>
Cc: George.Dunlap@eu.citrix.com, ian.jackson@eu.citrix.com,
wei.liu2@citrix.com, stefano.stabellini@eu.citrix.com
Subject: Re: [PATCH v3 4/5] libxl: check for dynamic device model start required
Date: Fri, 25 Mar 2016 00:29:35 -0600 [thread overview]
Message-ID: <56F54B4F02000066000C0FDC@prv-mh.provo.novell.com> (raw)
In-Reply-To: <56F4D9D6.8030300@suse.com>
>>> On 3/25/2016 at 02:25 PM, in message <56F4D9D6.8030300@suse.com>, Juergen Gross
<jgross@suse.com> wrote:
> On 25/03/16 03:06, Chun Yan Liu wrote:
> >
> >
> >>>> On 3/23/2016 at 08:24 PM, in message
> > <1458735847-9448-5-git-send-email-jgross@suse.com>, Juergen Gross
> > <jgross@suse.com> wrote:
> >> Add a service routine checking whether a device model must be started
> >> after adding a device to a domain.
> >>
> >> Signed-off-by: Juergen Gross <jgross@suse.com>
> >> ---
> >> tools/libxl/libxl.c | 12 ++++++++++++
> >> tools/libxl/libxl_dm.c | 14 ++++++++++++++
> >> tools/libxl/libxl_internal.h | 4 ++++
> >> tools/libxl/libxl_pci.c | 3 +++
> >> tools/libxl/libxl_pvusb.c | 6 ++++++
> >> 5 files changed, 39 insertions(+)
> >>
> >> diff --git a/tools/libxl/libxl.c b/tools/libxl/libxl.c
> >> index dcd0951..2b4e36f 100644
> >> --- a/tools/libxl/libxl.c
> >> +++ b/tools/libxl/libxl.c
> >> @@ -2084,6 +2084,9 @@ void libxl__device_vtpm_add(libxl__egc *egc, uint32_t
>
> >> domid,
> >> if (rc) goto out;
> >>
> >> DEVICE_ADD(vtpm, vtpms, domid, &vtpm_saved, COMPARE_DEVID,
> >> &d_config);
> >> +
> >> + rc = libxl__dm_check_start(gc, &d_config, domid);
> >> + if (rc) goto out;
> >> }
> >
> > Why is this check put inside the if (aodev->update_json) { }? I think it's
> a common
> > check, so should move outside.
>
> It is the only case where the check makes sense: update_json isn't set
> when we are just creating the domain, in which case the test for the
> device model needed is already in place.
See. That's OK then.
Thanks,
Chunyan
> When the device is added to an
> already running domain update_json will always be true.
>
>
> Juergen
>
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next prev parent reply other threads:[~2016-03-25 6:29 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-23 12:24 [PATCH v3 0/5] libxl: add support for qemu base pvusb backend Juergen Gross
2016-03-23 12:24 ` [PATCH v3 1/5] libxl: make libxl__need_xenpv_qemu() operate on domain config Juergen Gross
2016-03-24 20:28 ` Wei Liu
2016-03-25 6:13 ` Juergen Gross
2016-03-23 12:24 ` [PATCH v3 2/5] libxl: add new pvusb backend "qusb" provided by qemu Juergen Gross
2016-03-25 2:23 ` Chun Yan Liu
[not found] ` <56F5119C02000066000C0F24@suse.com>
2016-03-25 6:29 ` Juergen Gross
2016-03-25 6:38 ` Chun Yan Liu
2016-03-23 12:24 ` [PATCH v3 3/5] libxl: add service function to check whether device model is running Juergen Gross
2016-03-24 20:28 ` Wei Liu
2016-03-23 12:24 ` [PATCH v3 4/5] libxl: check for dynamic device model start required Juergen Gross
2016-03-25 2:06 ` Chun Yan Liu
[not found] ` <56F50DC102000066000C0EF4@suse.com>
2016-03-25 6:25 ` Juergen Gross
2016-03-25 6:29 ` Chun Yan Liu [this message]
2016-03-23 12:24 ` [PATCH v3 5/5] libxl: add domain config parameter to force start of qemu Juergen Gross
2016-03-24 20:28 ` Wei Liu
2016-03-24 20:35 ` Wei Liu
2016-03-25 6:20 ` Juergen Gross
2016-03-25 6:16 ` Juergen Gross
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