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helo=lists.xenproject.org; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB03.amd.com; pr=C From: Jason Andryuk To: CC: =?UTF-8?q?zithro=20/=20Cyril=20R=C3=A9bert?= , "Anthony PERARD" , Andrew Cooper , =?UTF-8?q?Marek=20Marczykowski-G=C3=B3recki?= , Jason Andryuk Subject: [PATCH v2 2/2] tools/xl: add suspend and resume subcommands Date: Tue, 26 Nov 2024 12:19:41 -0500 Message-ID: <20241126171941.170897-3-jason.andryuk@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241126171941.170897-1-jason.andryuk@amd.com> References: <20241126171941.170897-1-jason.andryuk@amd.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: None (SATLEXMB03.amd.com: jason.andryuk@amd.com does not designate permitted sender hosts) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS1PEPF00017096:EE_|CY8PR12MB8411:EE_ X-MS-Office365-Filtering-Correlation-Id: 54c6437b-a83c-43a8-6c5c-08dd0e3e8dbb X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|36860700013|376014|82310400026; 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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 26 Nov 2024 17:19:58.4016 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 54c6437b-a83c-43a8-6c5c-08dd0e3e8dbb X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB03.amd.com] X-MS-Exchange-CrossTenant-AuthSource: DS1PEPF00017096.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY8PR12MB8411 X-ZohoMail-DKIM: pass (identity @amd.com) X-ZM-MESSAGEID: 1732641625922019100 From: zithro / Cyril R=C3=A9bert The xl command doesn't provide suspend/resume, so add them : xl suspend xl resume This patch follows a discussion on XenDevel: when you want the virtualized equivalent of "sleep"-ing a host, it's better to suspend/resume than to pause/unpause a domain. Suggested-by: Andrew Cooper Suggested-by: Marek Marczykowski-G=C3=B3recki Signed-off-by: Cyril R=C3=A9bert (zithro) Signed-off-by: Jason Andryuk --- Rename command to just "suspend" Move inside the HAVE_NO_SUSPEND_RESUME --- docs/man/xl.1.pod.in | 12 ++++++++++++ tools/xl/xl.h | 2 ++ tools/xl/xl_cmdtable.c | 10 ++++++++++ tools/xl/xl_vmcontrol.c | 36 ++++++++++++++++++++++++++++++++++++ 4 files changed, 60 insertions(+) diff --git a/docs/man/xl.1.pod.in b/docs/man/xl.1.pod.in index bed8393473..fe38724b2b 100644 --- a/docs/man/xl.1.pod.in +++ b/docs/man/xl.1.pod.in @@ -682,6 +682,10 @@ Pass the VNC password to vncviewer via stdin. =20 =3Dback =20 +=3Ditem B I + +Resume a domain, after having been suspended. + =3Ditem B [I] I I [I] =20 Saves a running domain to a state file so that it can be restored @@ -760,6 +764,14 @@ in response to this event. =20 =3Dback =20 +=3Ditem B I + +Suspend a domain. This is a cooperative operation where the domain must +respond to the xenstore trigger. When in a suspended state the domain +still consumes allocated resources (such as memory), but is not eligible +for scheduling by the Xen hypervisor. It is in a shutdown state, but +not dying. + =3Ditem B I I =20 Send a to the domain, each type of request is diff --git a/tools/xl/xl.h b/tools/xl/xl.h index 967d034cfe..45745f0dbb 100644 --- a/tools/xl/xl.h +++ b/tools/xl/xl.h @@ -129,6 +129,8 @@ int main_restore(int argc, char **argv); int main_migrate_receive(int argc, char **argv); int main_save(int argc, char **argv); int main_migrate(int argc, char **argv); +int main_suspend(int argc, char **argv); +int main_resume(int argc, char **argv); #endif int main_dump_core(int argc, char **argv); int main_pause(int argc, char **argv); diff --git a/tools/xl/xl_cmdtable.c b/tools/xl/xl_cmdtable.c index 53fc22d344..06a0039718 100644 --- a/tools/xl/xl_cmdtable.c +++ b/tools/xl/xl_cmdtable.c @@ -193,6 +193,16 @@ const struct cmd_spec cmd_table[] =3D { "Restore a domain from a saved state", "- for internal use only", }, + { "suspend", + &main_suspend, 0, 1, + "Suspend a domain to RAM", + "", + }, + { "resume", + &main_resume, 0, 1, + "Resume a domain from RAM", + "", + }, #endif { "dump-core", &main_dump_core, 0, 1, diff --git a/tools/xl/xl_vmcontrol.c b/tools/xl/xl_vmcontrol.c index c45d497c28..3160966972 100644 --- a/tools/xl/xl_vmcontrol.c +++ b/tools/xl/xl_vmcontrol.c @@ -42,6 +42,16 @@ static void unpause_domain(uint32_t domid) libxl_domain_unpause(ctx, domid, NULL); } =20 +static void suspend_domain(uint32_t domid) +{ + libxl_domain_suspend_only(ctx, domid, NULL); +} + +static void resume_domain(uint32_t domid) +{ + libxl_domain_resume(ctx, domid, 1, NULL); +} + static void destroy_domain(uint32_t domid, int force) { int rc; @@ -82,6 +92,32 @@ int main_unpause(int argc, char **argv) return EXIT_SUCCESS; } =20 +int main_suspend(int argc, char **argv) +{ + int opt; + + SWITCH_FOREACH_OPT(opt, "", NULL, "suspend", 1) { + /* No options */ + } + + suspend_domain(find_domain(argv[optind])); + + return EXIT_SUCCESS; +} + +int main_resume(int argc, char **argv) +{ + int opt; + + SWITCH_FOREACH_OPT(opt, "", NULL, "resume", 1) { + /* No options */ + } + + resume_domain(find_domain(argv[optind])); + + return EXIT_SUCCESS; +} + int main_destroy(int argc, char **argv) { int opt; --=20 2.34.1