From: Anchal Agarwal <anchalag@amazon.com>
To: <tglx@linutronix.de>, <mingo@redhat.com>, <hpa@zytor.com>,
<x86@kernel.org>
Cc: <boris.ostrovsky@oracle.com>, <konrad.wilk@oracle.com>,
<roger.pau@citrix.com>, <netdev@vger.kernel.org>,
<jgross@suse.com>, <xen-devel@lists.xenproject.org>,
<linux-kernel@vger.kernel.org>, <kamatam@amazon.com>,
<anchalag@amazon.com>, <fllinden@amazon.com>,
<vallish@amazon.com>, <guruanb@amazon.com>, <eduval@amazon.com>,
<rjw@rjwysocki.net>, <pavel@ucw.cz>, <len.brown@intel.com>,
<linux-pm@vger.kernel.org>, <cyberax@amazon.com>
Subject: [RFC PATCH 02/12] xen/manage: introduce helper function to know the on-going suspend mode
Date: Tue, 12 Jun 2018 20:56:09 +0000 [thread overview]
Message-ID: <20180612205619.28156-3-anchalag@amazon.com> (raw)
In-Reply-To: <20180612205619.28156-1-anchalag@amazon.com>
From: Munehisa Kamata <kamatam@amazon.com>
Introduce simple functions which help to know the on-going suspend mode
so that other Xen-related code can behave differently according to the
current suspend mode.
Signed-off-by: Munehisa Kamata <kamatam@amazon.com>
Signed-off-by: Anchal Agarwal <anchalag@amazon.com>
Reviewed-by: Alakesh Haloi <alakeshh@amazon.com>
Reviewed-by: Sebastian Biemueller <sbiemue@amazon.com>
Reviewed-by: Munehisa Kamata <kamatam@amazon.com>
Reviewed-by: Eduardo Valentin <eduval@amazon.com>
---
drivers/xen/manage.c | 15 +++++++++++++++
include/xen/xen-ops.h | 4 ++++
2 files changed, 19 insertions(+)
diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c
index 8f9ea87..326631d 100644
--- a/drivers/xen/manage.c
+++ b/drivers/xen/manage.c
@@ -50,6 +50,21 @@ enum suspend_modes {
/* Protected by pm_mutex */
static enum suspend_modes suspend_mode = NO_SUSPEND;
+bool xen_suspend_mode_is_xen_suspend(void)
+{
+ return suspend_mode == XEN_SUSPEND;
+}
+
+bool xen_suspend_mode_is_pm_suspend(void)
+{
+ return suspend_mode == PM_SUSPEND;
+}
+
+bool xen_suspend_mode_is_pm_hibernation(void)
+{
+ return suspend_mode == PM_HIBERNATION;
+}
+
struct suspend_info {
int cancelled;
};
diff --git a/include/xen/xen-ops.h b/include/xen/xen-ops.h
index fd23e42..be78f6f 100644
--- a/include/xen/xen-ops.h
+++ b/include/xen/xen-ops.h
@@ -39,6 +39,10 @@ u64 xen_steal_clock(int cpu);
int xen_setup_shutdown_event(void);
+bool xen_suspend_mode_is_xen_suspend(void);
+bool xen_suspend_mode_is_pm_suspend(void);
+bool xen_suspend_mode_is_pm_hibernation(void);
+
extern unsigned long *xen_contiguous_bitmap;
#ifdef CONFIG_XEN_PV
--
2.7.4
next prev parent reply other threads:[~2018-06-12 20:59 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-12 20:56 [RFC PATCH 00/12] Enable PM hibernation on guest VMs Anchal Agarwal
2018-06-12 20:56 ` [RFC PATCH 01/12] xen/manage: keep track of the on-going suspend mode Anchal Agarwal
2018-06-13 16:42 ` Balbir Singh
2018-06-12 20:56 ` Anchal Agarwal [this message]
2018-06-13 17:41 ` [RFC PATCH 02/12] xen/manage: introduce helper function to know " Balbir Singh
2018-06-12 20:56 ` [RFC PATCH 03/12] xenbus: add freeze/thaw/restore callbacks support Anchal Agarwal
2018-06-12 20:56 ` [RFC PATCH 04/12] x86/xen: Introduce new function to map HYPERVISOR_shared_info on Resume Anchal Agarwal
2018-06-12 20:56 ` [RFC PATCH 05/12] x86/xen: add system core suspend and resume callbacks Anchal Agarwal
2018-06-12 20:56 ` [RFC PATCH 06/12] xen-blkfront: add callbacks for PM suspend and hibernation Anchal Agarwal
2018-06-13 8:24 ` Roger Pau Monné
[not found] ` <20180613222048.GB33296@kaos-source-ops-60001.pdx1.amazon.com>
2018-06-14 8:43 ` Roger Pau Monné
2018-06-12 20:56 ` [RFC PATCH 07/12] xen-netfront: add callbacks for PM suspend and hibernation support Anchal Agarwal
2018-06-12 20:56 ` [RFC PATCH 08/12] xen-time-introduce-xen_-save-restore-_steal_clock Anchal Agarwal
2018-06-12 20:56 ` [RFC PATCH 09/12] x86/xen: save and restore steal clock Anchal Agarwal
2018-06-12 20:56 ` [RFC PATCH 10/12] xen/events: add xen_shutdown_pirqs helper function Anchal Agarwal
2018-06-12 20:56 ` [RFC PATCH 11/12] x86/xen: close event channels for PIRQs in system core suspend callback Anchal Agarwal
2018-06-12 20:56 ` [RFC PATCH 12/12] PM / hibernate: update the resume offset on SNAPSHOT_SET_SWAP_AREA Anchal Agarwal
2018-06-14 19:45 ` Pavel Machek
2018-06-14 19:50 ` Besogonov, Aleksei
2018-06-12 21:09 ` [RFC PATCH 00/12] Enable PM hibernation on guest VMs Konrad Rzeszutek Wilk
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