提交 · a3b975c49e3e21864268892760f630433d96e01a · openanolis / cloud-kernel

29 3月, 2011 2 次提交

xen: Use new irq_move functions · a3b975c4

由 Thomas Gleixner 提交于 3月 24, 2011

These functions take irq_data as an argument and avoid a redundant
lookup in the sparse irq case.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

a3b975c4

T
xen: Cleanup genirq namespace · c442b806
由 Thomas Gleixner 提交于 3月 25, 2011
```
Converted with coccinelle.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
```
c442b806

17 3月, 2011 2 次提交

xen: use freeze/restore/thaw PM events for suspend/resume/chkpt · b3e96c0c

由 Shriram Rajagopalan 提交于 2月 22, 2011

Use PM_FREEZE, PM_THAW and PM_RESTORE power events for
suspend/resume/checkpoint functionality, instead of PM_SUSPEND
and PM_RESUME. Use of these pm events fixes the Xen Guest hangup
when taking checkpoints. When a suspend event is cancelled
(while taking checkpoints once/continuously), we use PM_THAW
instead of PM_RESUME. PM_RESTORE is used when suspend is not
cancelled. See Documentation/power/devices.txt and linux/pm.h
for more info about freeze, thaw and restore. The sequence of
pm events in a suspend-resume scenario is shown below.

        dpm_suspend_start(PMSG_FREEZE);

                dpm_suspend_noirq(PMSG_FREEZE);

                       sysdev_suspend(PMSG_FREEZE);
                       cancelled = suspend_hypercall()
                       sysdev_resume();

               dpm_resume_noirq(cancelled ? PMSG_THAW : PMSG_RESTORE);

       dpm_resume_end(cancelled ? PMSG_THAW : PMSG_RESTORE);
Acked-by: NIan Campbell <ian.campbell@citrix.com>
Signed-off-by: NShriram Rajagopalan <rshriram@cs.ubc.ca>
Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>

b3e96c0c

xen: xenbus PM events support · c7853aea

由 Kazuhiro SUZUKI 提交于 2月 18, 2011

Make xenbus frontend device subscribe to PM events
to receive suspend/resume/freeze/thaw/restore
notifications.
Signed-off-by: NKenji Wakamiya <wkenji@jp.fujitsu.com>
Signed-off-by: NKazuhiro Suzuki <kaz@jp.fujitsu.com>
Signed-off-by: NShriram Rajagopalan <rshriram@cs.ubc.ca>
Acked-by: NIan Campbell <ian.campbell@citrix.com>
[shriram--minor mods and improved commit message]
Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>

c7853aea

16 3月, 2011 5 次提交

xen-gntdev: Use ballooned pages for grant mappings · ca47ceaa

由 Daniel De Graaf 提交于 3月 09, 2011

Grant mappings cause the PFN<->MFN mapping to be lost on the pages used
for the mapping. Instead of leaking memory, use pages that have already
been ballooned out and so have no valid mapping. This removes the need
for the bad-page leak workaround as pages are repopulated by the balloon
driver.
Acked-by: NIan Campbell <ian.campbell@citrix.com>
Signed-off-by: NDaniel De Graaf <dgdegra@tycho.nsa.gov>
Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>

ca47ceaa

xen-balloon: Add interface to retrieve ballooned pages · b6f30679

由 Konrad Rzeszutek Wilk 提交于 3月 15, 2011

Pages that have been ballooned are useful for other Xen drivers doing
grant table actions, because these pages have valid struct page/PFNs but
have no valid MFN so are available for remapping.
Acked-by: NIan Campbell <ian.campbell@citrix.com>
Signed-off-by: NDaniel De Graaf <dgdegra@tycho.nsa.gov>
[v2: Deal with rebasing on top of modified balloon code]
Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>

b6f30679

xen-balloon: Move core balloon functionality out of module · 803eb047

由 Daniel De Graaf 提交于 3月 14, 2011

The basic functionality of ballooning pages is useful for Xen drivers in
general. Rather than require a dependency on the balloon module, split
the functionality that is reused into the core. The balloon module is
still required to follow ballooning requests from xenstore or to view
balloon statistics in sysfs.
Acked-by: NIan Campbell <ian.campbell@citrix.com>
Signed-off-by: NDaniel De Graaf <dgdegra@tycho.nsa.gov>
Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>

803eb047

xen/balloon: Remove pr_info's and don't alter retry_count · 40095de1

由 Konrad Rzeszutek Wilk 提交于 3月 14, 2011

In the past the retry_count (in other form of this code) was zero.
Meaning retry forever. Do the same thing here without changing it to
the value 16.

Also remove some of the pr_info as there is no need to spam
the user.
Acked-by: NIan Campbell <Ian.Campbell@eu.citrix.com>
Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>

40095de1

xen: events: Fix compile error if CONFIG_SMP is not defined. · 44626e4a

由 Konrad Rzeszutek Wilk 提交于 3月 15, 2011

drivers/xen/events.c:396: error: 'struct irq_data' has no member named 'affinity'
Reported-by: NRandy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>

44626e4a

14 3月, 2011 4 次提交

xen/balloon: Protect against CPU exhaust by event/x process · 95d2ac4a

由 Daniel Kiper 提交于 3月 08, 2011

Protect against CPU exhaust by event/x process during
errors by adding some delays in scheduling next event
and retry count limit.
Signed-off-by: NDaniel Kiper <dkiper@net-space.pl>
Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>

95d2ac4a

xen/balloon: Migration from mod_timer() to schedule_delayed_work() · 95170b2e

由 Daniel Kiper 提交于 3月 08, 2011

Migration from mod_timer() to schedule_delayed_work().
Signed-off-by: NDaniel Kiper <dkiper@net-space.pl>
Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>

95170b2e

xen/balloon: Removal of driver_pages · 06f521d5

由 Daniel Kiper 提交于 3月 08, 2011

Removal of driver_pages (I do not have seen any references to it).
Signed-off-by: NDaniel Kiper <dkiper@net-space.pl>
Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>

06f521d5

xen: events: correct locking in xen_irq_from_pirq · a7b807ce

由 Ian Campbell 提交于 3月 14, 2011

One of those spin_lock() calls should be an unlock...
Signed-off-by: NIan Campbell <ian.campbell@citrix.com>
Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>

a7b807ce

11 3月, 2011 27 次提交

xen: events: propagate irq allocation failure instead of panicking · 7bee9768