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Thu, 30 Jul 2020 08:38:00 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : in-reply-to : references; s=corp-2020-01-29; bh=b9FFmQWTlGqrcBgCjwNHHJqNdI4vPeyPId0JJEpNZUw=; b=QW1mNHZLrKDI/TyJrxY+XfKmOOCm/o670xc2IK+Uk4v6pGxinNIgtDDfEUu5JbPsVewe u5v1pkp1N5LmEQXSSaGRJKPa2SEoRkUDtMbISHOsufdivMrOZ79nGWzbPcF9DBw1moDO e8589BC9YDDXt9AcsPJcDdhgPCOYcDT87IogVuLQKZts437c6sB2tWEsEclB8rtcxzj6 5icyMQMR9dMGwO3WCSuHEOLd+sIlIBU1NQFQdvJDG65F/CL1KWwLOJS8v3U7+JamxpJQ sZsGzZIPDUv3+ep1lJx78rrK7ivnOg+Uj/+FRfEESvNeOASDyJG6yf+VVfoNab/a6gb8 hg== From: Steve Sistare To: qemu-devel@nongnu.org Subject: [PATCH V1 10/32] kvmclock: restore paused KVM clock Date: Thu, 30 Jul 2020 08:14:14 -0700 Message-Id: <1596122076-341293-11-git-send-email-steven.sistare@oracle.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1596122076-341293-1-git-send-email-steven.sistare@oracle.com> References: <1596122076-341293-1-git-send-email-steven.sistare@oracle.com> X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9698 signatures=668679 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 phishscore=0 bulkscore=0 malwarescore=0 suspectscore=1 spamscore=0 mlxlogscore=999 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2007300111 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9698 signatures=668679 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 clxscore=1015 mlxlogscore=999 malwarescore=0 impostorscore=0 priorityscore=1501 spamscore=0 phishscore=0 suspectscore=1 bulkscore=0 mlxscore=0 lowpriorityscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2007300111 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=156.151.31.85; envelope-from=steven.sistare@oracle.com; helo=userp2120.oracle.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/07/30 11:38:02 X-ACL-Warn: Detected OS = Linux 3.1-3.10 [fuzzy] X-Spam_score_int: -53 X-Spam_score: -5.4 X-Spam_bar: ----- X-Spam_report: (-5.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, UNPARSEABLE_RELAY=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Daniel P. Berrange" , "Michael S. Tsirkin" , =?UTF-8?q?Alex=20Benn=C3=A9e?= , Juan Quintela , "Dr. David Alan Gilbert" , Markus Armbruster , Alex Williamson , Steve Sistare , Stefan Hajnoczi , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Paolo Bonzini , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" If the VM is paused when the KVM clock is serialized to a file, record that the clock is valid, so the value will be reused rather than overwritten after cprload with a new call to KVM_GET_CLOCK here: kvmclock_vm_state_change() if (running) ... else if (s->clock_valid) return; <-- instead, return here kvm_update_clock() kvm_vm_ioctl(kvm_state, KVM_GET_CLOCK, &data) <-- overwritten Signed-off-by: Steve Sistare --- hw/i386/kvm/clock.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/hw/i386/kvm/clock.c b/hw/i386/kvm/clock.c index 6428335..161991a 100644 --- a/hw/i386/kvm/clock.c +++ b/hw/i386/kvm/clock.c @@ -285,18 +285,22 @@ static int kvmclock_pre_save(void *opaque) if (!s->runstate_paused) { kvm_update_clock(s); } + if (!runstate_is_running()) { + s->clock_valid =3D true; + } =20 return 0; } =20 static const VMStateDescription kvmclock_vmsd =3D { .name =3D "kvmclock", - .version_id =3D 1, + .version_id =3D 2, .minimum_version_id =3D 1, .pre_load =3D kvmclock_pre_load, .pre_save =3D kvmclock_pre_save, .fields =3D (VMStateField[]) { VMSTATE_UINT64(clock, KVMClockState), + VMSTATE_BOOL_V(clock_valid, KVMClockState, 2), VMSTATE_END_OF_LIST() }, .subsections =3D (const VMStateDescription * []) { --=20 1.8.3.1