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Wed, 11 Sep 2019 23:39:00 +0000 From: Dexuan Cui To: KY Srinivasan , Haiyang Zhang , Stephen Hemminger , "sashal@kernel.org" , "linux-hyperv@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Michael Kelley CC: Dexuan Cui Subject: [PATCH 3/3] hv_utils: Support host-initiated restart request Thread-Topic: [PATCH 3/3] hv_utils: Support host-initiated restart request Thread-Index: AQHVaPoWJ9Nerb38pEGczASsy3S74w== Date: Wed, 11 Sep 2019 23:39:00 +0000 Message-ID: <1568245130-70712-4-git-send-email-decui@microsoft.com> References: <1568245130-70712-1-git-send-email-decui@microsoft.com> In-Reply-To: <1568245130-70712-1-git-send-email-decui@microsoft.com> Reply-To: Dexuan Cui Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: MWHPR08CA0059.namprd08.prod.outlook.com (2603:10b6:300:c0::33) To SN6PR2101MB0942.namprd21.prod.outlook.com (2603:10b6:805:4::19) authentication-results: spf=none (sender IP is ) smtp.mailfrom=decui@microsoft.com; x-ms-exchange-messagesentrepresentingtype: 1 x-mailer: git-send-email 1.8.3.1 x-originating-ip: [13.77.154.182] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 7d56f99b-2290-4f50-8bfc-08d7371138e2 x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0;PCL:0;RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600166)(711020)(4605104)(1401327)(4618075)(2017052603328)(7193020);SRVR:SN6PR2101MB0909; 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received-spf: None (protection.outlook.com: microsoft.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: XHuPbetlaQghEffJwKw4EKSsQjtB8w5onwFIm779JwB7NsVM2EDqgcmISkBOY8Q2NfZoA/IUbNSEQ+q5V02vXAL2FAOU35NYUQsoUSk2fr/HKQWqxRoZWlE8s+NS00uZ50N9t/gleZvX8YFZz65Ox75jI8x/CCK7iAjvePkNJ/PbkY5mgGDnCQxzsTnYhQOOkBYx+Xmx+TADmbRv5AlNEOiBLQD3b32mo71/MrxAvBtcMQqMYEvcXQTbWQyHua/Zj61MmouIr9g5zNl9JOwZ+2q28cdi4t+r0iuF9x3U9cRNFBXyMqBfwg13C2C5sqpLr0qbcLgtEYkzR6T/YR1bXDqReNXJAkGI8mRDEcSgNEefKx8Whz3e2bDAFCjJW4wYu6Tf+uVWtnsrpX8fjPtfe1GlMoC2dEPxyZIzEXqH3QM= Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-Network-Message-Id: 7d56f99b-2290-4f50-8bfc-08d7371138e2 X-MS-Exchange-CrossTenant-originalarrivaltime: 11 Sep 2019 23:39:00.7005 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: vWuacxTesW92bS7Gl8aOSa15sNghPxGoEeP9+oAXQL0KXr7EJENzLkneqoZSCBsThla0VQhcr2ktzd5gxNTCsA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN6PR2101MB0909 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org To test the code, we should run this command on the host: Restart-VM $vm -Type Reboot Signed-off-by: Dexuan Cui --- 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 9e98c5d..6d642f5 100644 --- a/drivers/hv/hv_util.c +++ b/drivers/hv/hv_util.c @@ -24,7 +24,9 @@ =20 #define SD_MAJOR 3 #define SD_MINOR 0 +#define SD_MINOR_1 1 #define SD_MINOR_2 2 +#define SD_VERSION_3_1 (SD_MAJOR << 16 | SD_MINOR_1) #define SD_VERSION_3_2 (SD_MAJOR << 16 | SD_MINOR_2) #define SD_VERSION (SD_MAJOR << 16 | SD_MINOR) =20 @@ -52,9 +54,10 @@ static int ts_srv_version; static int hb_srv_version; =20 -#define SD_VER_COUNT 3 +#define SD_VER_COUNT 4 static const int sd_versions[] =3D { SD_VERSION_3_2, + SD_VERSION_3_1, SD_VERSION, SD_VERSION_1 }; @@ -147,6 +150,11 @@ static void perform_shutdown(struct work_struct *dummy= ) orderly_poweroff(true); } =20 +static void perform_restart(struct work_struct *dummy) +{ + orderly_reboot(); +} + static void perform_hibernation(struct work_struct *dummy) { /* @@ -175,6 +183,11 @@ static void perform_hibernation(struct work_struct *du= mmy) static DECLARE_WORK(shutdown_work, perform_shutdown); =20 /* + * Perform the restart operation in a thread context. + */ +static DECLARE_WORK(restart_work, perform_restart); + +/* * Perform the hibernation operation in a thread context. */ static DECLARE_WORK(hibernate_work, perform_hibernation); @@ -222,6 +235,14 @@ 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 =3D HV_S_OK; + + schedule_work(&restart_work); + break; case 4: case 5: pr_info("Hibernation request received -" --=20 1.8.3.1