From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:34417) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1S2NeE-0006Hw-DW for qemu-devel@nongnu.org; Tue, 28 Feb 2012 09:03:28 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1S2Ne8-0007jr-Mj for qemu-devel@nongnu.org; Tue, 28 Feb 2012 09:03:21 -0500 Received: from mx1.redhat.com ([209.132.183.28]:24114) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1S2Ne8-0007jE-En for qemu-devel@nongnu.org; Tue, 28 Feb 2012 09:03:16 -0500 From: Luiz Capitulino Date: Tue, 28 Feb 2012 11:03:04 -0300 Message-Id: <1330437785-15912-3-git-send-email-lcapitulino@redhat.com> In-Reply-To: <1330437785-15912-1-git-send-email-lcapitulino@redhat.com> References: <1330437785-15912-1-git-send-email-lcapitulino@redhat.com> Subject: [Qemu-devel] [PATCH 2/3] qemu-ga: add guest-suspend-ram List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: amit.shah@redhat.com, mprivozn@redhat.com, jcody@redhat.com, eblake@redhat.com, mdroth@linux.vnet.ibm.com Signed-off-by: Luiz Capitulino --- qapi-schema-guest.json | 28 ++++++++++++++++++++++++++++ qga/commands-posix.c | 10 ++++++++++ 2 files changed, 38 insertions(+), 0 deletions(-) diff --git a/qapi-schema-guest.json b/qapi-schema-guest.json index f4e0e1d..b102311 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 af785f5..134c130 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) { -- 1.7.9.111.gf3fb0.dirty