From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:43058) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1S7Bga-0000Bx-IC for qemu-devel@nongnu.org; Mon, 12 Mar 2012 16:17:41 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1S7BgC-0003vy-Rx for qemu-devel@nongnu.org; Mon, 12 Mar 2012 16:17:40 -0400 Received: from mail-pz0-f45.google.com ([209.85.210.45]:36282) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1S7BgC-0003tT-Gl for qemu-devel@nongnu.org; Mon, 12 Mar 2012 16:17:16 -0400 Received: by mail-pz0-f45.google.com with SMTP id p14so6868978dad.4 for ; Mon, 12 Mar 2012 13:17:15 -0700 (PDT) Sender: fluxion From: Michael Roth Date: Mon, 12 Mar 2012 15:16:41 -0500 Message-Id: <1331583406-12873-3-git-send-email-mdroth@linux.vnet.ibm.com> In-Reply-To: <1331583406-12873-1-git-send-email-mdroth@linux.vnet.ibm.com> References: <1331583406-12873-1-git-send-email-mdroth@linux.vnet.ibm.com> Subject: [Qemu-devel] [PATCH 2/7] qemu-ga: add guest-suspend-ram List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: ghammer@redhat.com, mprivozn@redhat.com, aliguori@us.ibm.com, lcapitulino@redhat.com From: Luiz Capitulino Signed-off-by: Luiz Capitulino Signed-off-by: Michael Roth --- qapi-schema-guest.json | 28 ++++++++++++++++++++++++++++ qga/commands-posix.c | 10 ++++++++++ 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 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) { diff --git a/qga/commands-win32.c b/qga/commands-win32.c index c688476..b19a63c 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) { -- 1.7.4.1