From: Steve Sistare <steven.sistare@oracle.com>
To: qemu-devel@nongnu.org
Cc: Peter Xu <peterx@redhat.com>, Fabiano Rosas <farosas@suse.de>,
David Hildenbrand <david@redhat.com>,
Igor Mammedov <imammedo@redhat.com>,
Eduardo Habkost <eduardo@habkost.net>,
Marcel Apfelbaum <marcel.apfelbaum@gmail.com>,
Philippe Mathieu-Daude <philmd@linaro.org>,
Paolo Bonzini <pbonzini@redhat.com>,
"Daniel P. Berrange" <berrange@redhat.com>,
Markus Armbruster <armbru@redhat.com>,
Steve Sistare <steven.sistare@oracle.com>
Subject: [PATCH V1 02/26] vl: helper to request re-exec
Date: Mon, 29 Apr 2024 08:55:11 -0700 [thread overview]
Message-ID: <1714406135-451286-3-git-send-email-steven.sistare@oracle.com> (raw)
In-Reply-To: <1714406135-451286-1-git-send-email-steven.sistare@oracle.com>
Add a qemu_system_exec_request() hook that causes the main loop to exit and
re-exec qemu using the specified arguments.
Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
---
include/sysemu/runstate.h | 3 +++
system/runstate.c | 29 +++++++++++++++++++++++++++++
2 files changed, 32 insertions(+)
diff --git a/include/sysemu/runstate.h b/include/sysemu/runstate.h
index 0117d24..cb669cf 100644
--- a/include/sysemu/runstate.h
+++ b/include/sysemu/runstate.h
@@ -80,6 +80,8 @@ typedef enum WakeupReason {
QEMU_WAKEUP_REASON_OTHER,
} WakeupReason;
+typedef void (*qemu_exec_func)(char **exec_argv);
+
void qemu_system_reset_request(ShutdownCause reason);
void qemu_system_suspend_request(void);
void qemu_register_suspend_notifier(Notifier *notifier);
@@ -91,6 +93,7 @@ void qemu_register_wakeup_support(void);
void qemu_system_shutdown_request_with_code(ShutdownCause reason,
int exit_code);
void qemu_system_shutdown_request(ShutdownCause reason);
+void qemu_system_exec_request(qemu_exec_func func, const strList *args);
void qemu_system_powerdown_request(void);
void qemu_register_powerdown_notifier(Notifier *notifier);
void qemu_register_shutdown_notifier(Notifier *notifier);
diff --git a/system/runstate.c b/system/runstate.c
index cb4905a..0de0c6e 100644
--- a/system/runstate.c
+++ b/system/runstate.c
@@ -40,6 +40,7 @@
#include "qapi/error.h"
#include "qapi/qapi-commands-run-state.h"
#include "qapi/qapi-events-run-state.h"
+#include "qapi/type-helpers.h"
#include "qemu/accel.h"
#include "qemu/error-report.h"
#include "qemu/job.h"
@@ -401,6 +402,8 @@ static NotifierList wakeup_notifiers =
static NotifierList shutdown_notifiers =
NOTIFIER_LIST_INITIALIZER(shutdown_notifiers);
static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
+qemu_exec_func exec_func;
+static char **exec_argv;
ShutdownCause qemu_shutdown_requested_get(void)
{
@@ -417,6 +420,11 @@ static int qemu_shutdown_requested(void)
return qatomic_xchg(&shutdown_requested, SHUTDOWN_CAUSE_NONE);
}
+static int qemu_exec_requested(void)
+{
+ return exec_argv != NULL;
+}
+
static void qemu_kill_report(void)
{
if (!qtest_driver() && shutdown_signal) {
@@ -694,6 +702,23 @@ void qemu_system_shutdown_request(ShutdownCause reason)
qemu_notify_event();
}
+static void qemu_system_exec(void)
+{
+ exec_func(exec_argv);
+
+ /* exec failed */
+ g_strfreev(exec_argv);
+ exec_argv = NULL;
+ exec_func = NULL;
+}
+
+void qemu_system_exec_request(qemu_exec_func func, const strList *args)
+{
+ exec_func = func;
+ exec_argv = strv_from_str_list(args);
+ qemu_notify_event();
+}
+
static void qemu_system_powerdown(void)
{
qapi_event_send_powerdown();
@@ -740,6 +765,10 @@ static bool main_loop_should_exit(int *status)
if (qemu_suspend_requested()) {
qemu_system_suspend();
}
+ if (qemu_exec_requested()) {
+ qemu_system_exec();
+ return false;
+ }
request = qemu_shutdown_requested();
if (request) {
qemu_kill_report();
--
1.8.3.1
next prev parent reply other threads:[~2024-04-29 15:56 UTC|newest]
Thread overview: 113+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-29 15:55 [PATCH V1 00/26] Live update: cpr-exec Steve Sistare
2024-04-29 15:55 ` [PATCH V1 01/26] oslib: qemu_clear_cloexec Steve Sistare
2024-05-06 23:27 ` Fabiano Rosas
2024-05-07 8:56 ` Daniel P. Berrangé
2024-05-07 13:54 ` Fabiano Rosas
2024-04-29 15:55 ` Steve Sistare [this message]
2024-04-29 15:55 ` [PATCH V1 03/26] migration: SAVEVM_FOREACH Steve Sistare
2024-05-06 23:17 ` Fabiano Rosas
2024-05-13 19:27 ` Steven Sistare
2024-05-27 18:14 ` Peter Xu
2024-04-29 15:55 ` [PATCH V1 04/26] migration: delete unused parameter mis Steve Sistare
2024-05-06 21:50 ` Fabiano Rosas
2024-05-27 18:02 ` Peter Xu
2024-04-29 15:55 ` [PATCH V1 05/26] migration: precreate vmstate Steve Sistare
2024-05-07 21:02 ` Fabiano Rosas
2024-05-13 19:28 ` Steven Sistare
2024-05-24 13:56 ` Fabiano Rosas
2024-05-27 18:16 ` Peter Xu
2024-05-28 15:09 ` Steven Sistare via
2024-05-29 18:39 ` Peter Xu
2024-05-30 17:04 ` Steven Sistare via
2024-04-29 15:55 ` [PATCH V1 06/26] migration: precreate vmstate for exec Steve Sistare
2024-05-06 23:34 ` Fabiano Rosas
2024-05-13 19:28 ` Steven Sistare
2024-05-13 21:21 ` Fabiano Rosas
2024-04-29 15:55 ` [PATCH V1 07/26] migration: VMStateId Steve Sistare
2024-05-07 21:03 ` Fabiano Rosas
2024-05-27 18:20 ` Peter Xu
2024-05-28 15:10 ` Steven Sistare via
2024-05-28 17:44 ` Peter Xu
2024-05-29 17:30 ` Steven Sistare via
2024-05-29 18:53 ` Peter Xu
2024-05-30 17:11 ` Steven Sistare via
2024-05-30 18:03 ` Peter Xu
2024-04-29 15:55 ` [PATCH V1 08/26] migration: vmstate_info_void_ptr Steve Sistare
2024-05-07 21:33 ` Fabiano Rosas
2024-05-27 18:31 ` Peter Xu
2024-05-28 15:10 ` Steven Sistare via
2024-05-28 18:21 ` Peter Xu
2024-05-29 17:30 ` Steven Sistare via
2024-04-29 15:55 ` [PATCH V1 09/26] migration: vmstate_register_named Steve Sistare
2024-05-09 14:19 ` Fabiano Rosas
2024-05-09 14:32 ` Fabiano Rosas
2024-05-13 19:29 ` Steven Sistare
2024-04-29 15:55 ` [PATCH V1 10/26] migration: vmstate_unregister_named Steve Sistare
2024-04-29 15:55 ` [PATCH V1 11/26] migration: vmstate_register at init time Steve Sistare
2024-04-29 15:55 ` [PATCH V1 12/26] migration: vmstate factory object Steve Sistare
2024-04-29 15:55 ` [PATCH V1 13/26] physmem: ram_block_create Steve Sistare
2024-05-13 18:37 ` Fabiano Rosas
2024-05-13 19:30 ` Steven Sistare
2024-04-29 15:55 ` [PATCH V1 14/26] physmem: hoist guest_memfd creation Steve Sistare
2024-04-29 15:55 ` [PATCH V1 15/26] physmem: hoist host memory allocation Steve Sistare
2024-04-29 15:55 ` [PATCH V1 16/26] physmem: set ram block idstr earlier Steve Sistare
2024-04-29 15:55 ` [PATCH V1 17/26] machine: memfd-alloc option Steve Sistare
2024-05-28 21:12 ` Peter Xu
2024-05-29 17:31 ` Steven Sistare via
2024-05-29 19:14 ` Peter Xu
2024-05-30 17:11 ` Steven Sistare via
2024-05-30 18:14 ` Peter Xu
2024-05-31 19:32 ` Steven Sistare via
2024-04-29 15:55 ` [PATCH V1 18/26] migration: cpr-exec-args parameter Steve Sistare
2024-05-02 12:23 ` Markus Armbruster
2024-05-02 16:00 ` Steven Sistare
2024-05-21 8:13 ` Daniel P. Berrangé
2024-04-29 15:55 ` [PATCH V1 19/26] physmem: preserve ram blocks for cpr Steve Sistare
2024-05-28 21:44 ` Peter Xu
2024-05-29 17:31 ` Steven Sistare via
2024-05-29 19:25 ` Peter Xu
2024-05-30 17:12 ` Steven Sistare via
2024-05-30 18:39 ` Peter Xu
2024-05-31 19:32 ` Steven Sistare via
2024-04-29 15:55 ` [PATCH V1 20/26] migration: cpr-exec mode Steve Sistare
2024-05-02 12:23 ` Markus Armbruster
2024-05-02 16:00 ` Steven Sistare
2024-05-03 6:26 ` Markus Armbruster
2024-05-21 8:20 ` Daniel P. Berrangé
2024-05-24 14:58 ` Fabiano Rosas
2024-05-27 18:54 ` Steven Sistare via
2024-04-29 15:55 ` [PATCH V1 21/26] migration: migrate_add_blocker_mode Steve Sistare
2024-05-09 17:47 ` Fabiano Rosas
2024-04-29 15:55 ` [PATCH V1 22/26] migration: ram block cpr-exec blockers Steve Sistare
2024-05-09 18:01 ` Fabiano Rosas
2024-05-13 19:29 ` Steven Sistare
2024-04-29 15:55 ` [PATCH V1 23/26] migration: misc " Steve Sistare
2024-05-09 18:05 ` Fabiano Rosas
2024-05-24 12:40 ` Fabiano Rosas
2024-05-27 19:02 ` Steven Sistare via
2024-04-29 15:55 ` [PATCH V1 24/26] seccomp: cpr-exec blocker Steve Sistare
2024-05-09 18:16 ` Fabiano Rosas
2024-05-10 7:54 ` Daniel P. Berrangé
2024-05-13 19:29 ` Steven Sistare
2024-05-21 7:14 ` Daniel P. Berrangé
2024-04-29 15:55 ` [PATCH V1 25/26] migration: fix mismatched GPAs during cpr-exec Steve Sistare
2024-05-09 18:39 ` Fabiano Rosas
2024-04-29 15:55 ` [PATCH V1 26/26] migration: only-migratable-modes Steve Sistare
2024-05-09 19:14 ` Fabiano Rosas
2024-05-13 19:48 ` Steven Sistare
2024-05-13 21:57 ` Fabiano Rosas
2024-05-21 8:05 ` Daniel P. Berrangé
2024-05-02 16:13 ` cpr-exec doc (was Re: [PATCH V1 00/26] Live update: cpr-exec) Steven Sistare
2024-05-02 18:15 ` Peter Xu
2024-05-20 18:30 ` [PATCH V1 00/26] Live update: cpr-exec Steven Sistare
2024-05-20 22:28 ` Fabiano Rosas
2024-05-21 2:31 ` Peter Xu
2024-05-21 11:46 ` Steven Sistare
2024-05-27 17:45 ` Peter Xu
2024-05-28 15:10 ` Steven Sistare via
2024-05-28 16:42 ` Peter Xu
2024-05-30 17:17 ` Steven Sistare via
2024-05-30 19:23 ` Peter Xu
2024-05-24 13:02 ` Fabiano Rosas
2024-05-24 14:07 ` Steven Sistare
2024-05-27 18:07 ` Peter Xu
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