From: Emil Condrea <emilcondrea@gmail.com>
To: qemu-devel@nongnu.org
Cc: wei.liu2@citrix.com, stefanb@linux.vnet.ibm.com,
stefano.stabellini@eu.citrix.com, xen-devel@lists.xen.org,
quan.xu@intel.com, dgdegra@tycho.nsa.gov, eblake@redhat.com,
emilcondrea@gmail.com
Subject: [PATCH 13/19] xen: Distinguish between frontend and backend devops
Date: Sun, 10 Jul 2016 14:47:44 +0300 [thread overview]
Message-ID: <1468151270-12984-14-git-send-email-emilcondrea@gmail.com> (raw)
In-Reply-To: <1468151270-12984-1-git-send-email-emilcondrea@gmail.com>
xen_be_check_state should not be called for frontends
Use DEVOPS_FLAG_FE flag to distinguish a frontend.
Signed-off-by: Emil Condrea <emilcondrea@gmail.com>
Signed-off-by: Quan Xu <quan.xu@intel.com>
---
Changes in v9:
* Removed not needed strstr from xenstore_update_be
It was left over from first patch series when domu was included in xenstore
schema: "%s/backend/%s/%d/%d"
---
hw/xen/xen_backend.c | 4 +++-
include/hw/xen/xen_pvdev.h | 2 ++
2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/hw/xen/xen_backend.c b/hw/xen/xen_backend.c
index d0e3f50..3931128 100644
--- a/hw/xen/xen_backend.c
+++ b/hw/xen/xen_backend.c
@@ -488,7 +488,9 @@ void xenstore_update_be(char *watch, char *type, int dom,
} else {
free(bepath);
xen_be_backend_changed(xendev, path);
- xen_be_check_state(xendev);
+ if (!(ops->flags & DEVOPS_FLAG_FE)) {
+ xen_be_check_state(xendev);
+ }
}
}
}
diff --git a/include/hw/xen/xen_pvdev.h b/include/hw/xen/xen_pvdev.h
index c19e1df..c985a9d 100644
--- a/include/hw/xen/xen_pvdev.h
+++ b/include/hw/xen/xen_pvdev.h
@@ -14,6 +14,8 @@ struct XenDevice;
#define DEVOPS_FLAG_NEED_GNTDEV 1
/* don't expect frontend doing correct state transitions (aka console quirk) */
#define DEVOPS_FLAG_IGNORE_STATE 2
+/*dev is frontend device*/
+#define DEVOPS_FLAG_FE 4
struct XenDevOps {
size_t size;
--
1.9.1
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xen.org
https://lists.xen.org/xen-devel
next prev parent reply other threads:[~2016-07-10 11:47 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1468151270-12984-1-git-send-email-emilcondrea@gmail.com>
2016-07-10 11:47 ` [PATCH 01/19] xen: Create a new file xen_pvdev.c Emil Condrea
2016-07-10 11:47 ` [PATCH 02/19] xen: Create a new file xen_frontend.c Emil Condrea
2016-07-25 13:45 ` Anthony PERARD
2016-07-10 11:47 ` [PATCH 03/19] xen: Move xenstore_update to xen_pvdev.c Emil Condrea
2016-07-10 11:47 ` [PATCH 04/19] xen: Move evtchn functions " Emil Condrea
2016-07-25 13:53 ` Anthony PERARD
[not found] ` <20160725135311.GI1835@perard.uk.xensource.com>
2016-07-27 23:16 ` Eric Blake
2016-07-31 9:47 ` Emil Condrea
2016-07-10 11:47 ` [PATCH 05/19] xen: Prepare xendev qtail to be shared with frontends Emil Condrea
2016-07-10 11:47 ` [PATCH 06/19] xen: Rename xen_be_printf to xen_pv_printf Emil Condrea
2016-07-10 11:47 ` [PATCH 07/19] xen: Rename xen_be_unbind_evtchn Emil Condrea
2016-07-25 13:56 ` Anthony PERARD
2016-07-10 11:47 ` [PATCH 08/19] xen: Rename xen_be_send_notify Emil Condrea
2016-07-25 13:58 ` Anthony PERARD
2016-07-10 11:47 ` [PATCH 09/19] xen: Rename xen_be_evtchn_event Emil Condrea
2016-07-10 11:47 ` [PATCH 10/19] xen: Rename xen_be_find_xendev Emil Condrea
2016-07-10 11:47 ` [PATCH 11/19] xen: Rename xen_be_del_xendev Emil Condrea
2016-07-10 11:47 ` [PATCH 12/19] xen: Rename xen_be_frontend_changed Emil Condrea
2016-07-10 11:47 ` Emil Condrea [this message]
2016-07-10 11:47 ` [PATCH 14/19] Qemu-Xen-vTPM: Support for Xen stubdom vTPM command line options Emil Condrea
2016-07-10 11:47 ` [PATCH 15/19] Qemu-Xen-vTPM: Xen frontend driver infrastructure Emil Condrea
2016-07-25 16:01 ` Anthony PERARD
2016-08-07 11:39 ` Emil Condrea
[not found] ` <CAAULxKKk-UiLFPWn8GH4oDEqQEAowBSgdUHCPGvfX_Ubr_rztg@mail.gmail.com>
2016-08-09 11:40 ` Xuquan (Euler)
2016-07-10 11:47 ` [PATCH 16/19] Qemu-Xen-vTPM: Register Xen stubdom vTPM frontend driver Emil Condrea
2016-07-10 11:47 ` [PATCH 17/19] Qemu-Xen-vTPM: Move tpm_passthrough_is_selftest() into tpm_util.c Emil Condrea
2016-07-10 11:47 ` [PATCH 18/19] Qemu-Xen-vTPM: Qemu vTPM xenstubdoms backend Emil Condrea
2016-07-10 11:47 ` [PATCH 19/19] Qemu-Xen-vTPM: QEMU machine class is initialized before tpm_init() Emil Condrea
2016-07-13 2:55 ` [v9 00/19] QEMU:Xen stubdom vTPM for HVM virtual machine(QEMU Part) Xu, Quan
[not found] ` <945CA011AD5F084CBEA3E851C0AB28894B8FD7C8@SHSMSX101.ccr.corp.intel.com>
2016-07-14 15:33 ` Stefano Stabellini
2016-07-17 6:56 ` Quan Xu
[not found] ` <1468151270-12984-2-git-send-email-emilcondrea@gmail.com>
2016-07-25 13:41 ` [Qemu-devel] [PATCH 01/19] xen: Create a new file xen_pvdev.c Anthony PERARD
2016-07-25 14:09 ` [Qemu-devel] [v9 00/19] QEMU:Xen stubdom vTPM for HVM virtual machine(QEMU Part) Anthony PERARD
[not found] ` <20160725140941.GL1835@perard.uk.xensource.com>
2016-07-31 9:57 ` Emil Condrea
2016-10-04 6:52 ` Emil Condrea
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=1468151270-12984-14-git-send-email-emilcondrea@gmail.com \
--to=emilcondrea@gmail.com \
--cc=dgdegra@tycho.nsa.gov \
--cc=eblake@redhat.com \
--cc=qemu-devel@nongnu.org \
--cc=quan.xu@intel.com \
--cc=stefanb@linux.vnet.ibm.com \
--cc=stefano.stabellini@eu.citrix.com \
--cc=wei.liu2@citrix.com \
--cc=xen-devel@lists.xen.org \
/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).