From: Dexuan Cui <decui@microsoft.com>
To: KY Srinivasan <kys@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>,
Stephen Hemminger <sthemmin@microsoft.com>,
"sashal@kernel.org" <sashal@kernel.org>,
Sasha Levin <Alexander.Levin@microsoft.com>,
"linux-hyperv@vger.kernel.org" <linux-hyperv@vger.kernel.org>,
Michael Kelley <mikelley@microsoft.com>,
vkuznets <vkuznets@redhat.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: [PATCH v2 2/4] hv_utils: Support host-initiated restart request
Date: Mon, 13 Jan 2020 06:30:58 +0000 [thread overview]
Message-ID: <HK0P153MB01487F54363A856730BB13FDBF350@HK0P153MB0148.APCP153.PROD.OUTLOOK.COM> (raw)
To test the code, run this command on the host:
Restart-VM $vm -Type Reboot
Signed-off-by: Dexuan Cui <decui@microsoft.com>
---
drivers/hv/hv_util.c | 23 ++++++++++++++++++++++-
1 file changed, 22 insertions(+), 1 deletion(-)
diff --git a/drivers/hv/hv_util.c b/drivers/hv/hv_util.c
index 766bd8457346..fe3a316380c2 100644
--- a/drivers/hv/hv_util.c
+++ b/drivers/hv/hv_util.c
@@ -24,6 +24,8 @@
#define SD_MAJOR 3
#define SD_MINOR 0
+#define SD_MINOR_1 1
+#define SD_VERSION_3_1 (SD_MAJOR << 16 | SD_MINOR_1)
#define SD_VERSION (SD_MAJOR << 16 | SD_MINOR)
#define SD_MAJOR_1 1
@@ -50,8 +52,9 @@ static int sd_srv_version;
static int ts_srv_version;
static int hb_srv_version;
-#define SD_VER_COUNT 2
+#define SD_VER_COUNT 3
static const int sd_versions[] = {
+ SD_VERSION_3_1,
SD_VERSION,
SD_VERSION_1
};
@@ -118,11 +121,21 @@ static void perform_shutdown(struct work_struct *dummy)
orderly_poweroff(true);
}
+static void perform_restart(struct work_struct *dummy)
+{
+ orderly_reboot();
+}
+
/*
* Perform the shutdown operation in a thread context.
*/
static DECLARE_WORK(shutdown_work, perform_shutdown);
+/*
+ * Perform the restart operation in a thread context.
+ */
+static DECLARE_WORK(restart_work, perform_restart);
+
static void shutdown_onchannelcallback(void *context)
{
struct vmbus_channel *channel = context;
@@ -166,6 +179,14 @@ static void shutdown_onchannelcallback(void *context)
pr_info("Shutdown request received -"
" graceful shutdown initiated\n");
break;
+ case 2:
+ case 3:
+ pr_info("Restart request received -"
+ " graceful restart initiated\n");
+ icmsghdrp->status = HV_S_OK;
+
+ schedule_work(&restart_work);
+ break;
default:
icmsghdrp->status = HV_E_FAIL;
execute_shutdown = false;
--
2.19.1
next reply other threads:[~2020-01-13 6:31 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-13 6:30 Dexuan Cui [this message]
2020-01-22 17:16 ` [PATCH v2 2/4] hv_utils: Support host-initiated restart request Michael Kelley
2020-01-23 8:11 ` Dexuan Cui
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