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| author | Olaf Hering <olaf@aepfle.de> | 2012-03-01 15:58:02 +0000 |
|---|---|---|
| committer | Olaf Hering <olaf@aepfle.de> | 2012-03-01 15:58:02 +0000 |
| commit | 2131e4744b591ef304e4ee2dd0d3c6891ad659b9 (patch) | |
| tree | 4db2c4cda6a571bbd6e34a1b8f71c1d4b0180e99 /tools/xenpaging | |
| parent | 546ba55410f7c772799b5f89c7027d8393b25b23 (diff) | |
| download | xen-2131e4744b591ef304e4ee2dd0d3c6891ad659b9.tar.gz xen-2131e4744b591ef304e4ee2dd0d3c6891ad659b9.tar.bz2 xen-2131e4744b591ef304e4ee2dd0d3c6891ad659b9.zip | |
xenpaging: remove obsolete XENMEM_paging_op_resume
With changeset 24364:0964341efd65 an event channel based notification of
new responses in the ringbuffer is implemented. This makes the memevent
interface obsolete. Currently a call to p2m_mem_paging_resume() is
triggered twice by xenpaging, once per memevent and once per even
channel. In practice this double call does not lead to issues because
p2m_mem_paging_resume() processes only available events.
xenpaging used the event channel notification since the beginning, but
it was a no-op until changeset mentioned above. This change removes the
unneeded XENMEM_paging_op_resume functionality. Pagers are notified via
an event channel of new requests, and now they are required to notify
the hypervisor about their responses also with an event channel.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Acked-by: Tim Deegan <tim@xen.org>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
Diffstat (limited to 'tools/xenpaging')
| -rw-r--r-- | tools/xenpaging/xenpaging.c | 11 |
1 files changed, 1 insertions, 10 deletions
diff --git a/tools/xenpaging/xenpaging.c b/tools/xenpaging/xenpaging.c index b7b754541a..c0f08e3c4c 100644 --- a/tools/xenpaging/xenpaging.c +++ b/tools/xenpaging/xenpaging.c @@ -656,8 +656,6 @@ static int xenpaging_evict_page(struct xenpaging *paging, unsigned long gfn, int static int xenpaging_resume_page(struct xenpaging *paging, mem_event_response_t *rsp, int notify_policy) { - int ret; - /* Put the page info on the ring */ put_response(&paging->mem_event, rsp); @@ -678,14 +676,7 @@ static int xenpaging_resume_page(struct xenpaging *paging, mem_event_response_t } /* Tell Xen page is ready */ - ret = xc_mem_paging_resume(paging->xc_handle, paging->mem_event.domain_id, - rsp->gfn); - if ( ret == 0 ) - ret = xc_evtchn_notify(paging->mem_event.xce_handle, - paging->mem_event.port); - - out: - return ret; + return xc_evtchn_notify(paging->mem_event.xce_handle, paging->mem_event.port); } static int xenpaging_populate_page(struct xenpaging *paging, unsigned long gfn, int i) |