diff options
| -rw-r--r-- | qapi-schema-guest.json | 28 | ||||
| -rw-r--r-- | qga/commands-posix.c | 10 | ||||
| -rw-r--r-- | qga/commands-win32.c | 5 |
3 files changed, 43 insertions, 0 deletions
diff --git a/qapi-schema-guest.json b/qapi-schema-guest.json index f4e0e1d241..b1023110d7 100644 --- a/qapi-schema-guest.json +++ b/qapi-schema-guest.json @@ -319,3 +319,31 @@ # Since: 1.1 ## { 'command': 'guest-suspend-disk' } + +## +# @guest-suspend-ram +# +# Suspend guest to ram. +# +# This command tries to execute the scripts provided by the pm-utils package. +# If it's not available, the suspend operation will be performed by manually +# writing to a sysfs file. +# +# For the best results it's strongly recommended to have the pm-utils +# package installed in the guest. +# +# IMPORTANT: guest-suspend-ram requires QEMU to support the 'system_wakeup' +# command. Thus, it's *required* to query QEMU for the presence of the +# 'system_wakeup' command before issuing guest-suspend-ram. +# +# Returns: nothing on success +# If suspend to ram is not supported, Unsupported +# +# Notes: o This is an asynchronous request. There's no guarantee a response +# will be sent +# o It's strongly recommended to issue the guest-sync command before +# sending commands when the guest resumes +# +# Since: 1.1 +## +{ 'command': 'guest-suspend-ram' } diff --git a/qga/commands-posix.c b/qga/commands-posix.c index af785f5e5d..134c130d08 100644 --- a/qga/commands-posix.c +++ b/qga/commands-posix.c @@ -705,6 +705,16 @@ void qmp_guest_suspend_disk(Error **err) guest_suspend("pm-hibernate", "disk", err); } +void qmp_guest_suspend_ram(Error **err) +{ + bios_supports_mode("pm-is-supported", "--suspend", "mem", err); + if (error_is_set(err)) { + return; + } + + guest_suspend("pm-suspend", "mem", err); +} + /* register init/cleanup routines for stateful command groups */ void ga_command_state_init(GAState *s, GACommandState *cs) { diff --git a/qga/commands-win32.c b/qga/commands-win32.c index c688476c89..b19a63ccf6 100644 --- a/qga/commands-win32.c +++ b/qga/commands-win32.c @@ -129,6 +129,11 @@ void qmp_guest_suspend_disk(Error **err) error_set(err, QERR_UNSUPPORTED); } +void qmp_guest_suspend_ram(Error **err) +{ + error_set(err, QERR_UNSUPPORTED); +} + /* register init/cleanup routines for stateful command groups */ void ga_command_state_init(GAState *s, GACommandState *cs) { |