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bh=YGKgElaIhsvlpt+cRXr/iFaG/Eh4AjDHbnagqgiYya8=; b=JU6KLESi7Gq/EVUVwVnAkjAp/t3JGo4BRh2wtPpJquQ3DtUOgapD++PZkXfPgPj+aldpuX tXkPRpKhZalXkVEYBj2yD/OTMwtwNTZUNGR0A81fbpeH/yKEFQz7Vn0gA6HdrPDp+P1zwI d/lItdOpDHg/QgC6Kk9HjPngMP2yaBc= X-MC-Unique: XtZCNDgVNMaC6Z2LblLfqw-1 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Subject: [PATCH 02/33] migration: push Error **errp into qemu_loadvm_state_header() Date: Thu, 4 Feb 2021 17:18:36 +0000 Message-Id: <20210204171907.901471-3-berrange@redhat.com> In-Reply-To: <20210204171907.901471-1-berrange@redhat.com> References: <20210204171907.901471-1-berrange@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=berrange@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable 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=63.128.21.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.351, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable 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: Juan Quintela , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , "Dr. David Alan Gilbert" , Hailiang Zhang Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) This is an incremental step in converting vmstate loading code to report via Error objects instead of printing directly to the console/monitor. Signed-off-by: Daniel P. Berrang=C3=A9 Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- migration/savevm.c | 31 +++++++++++++++++-------------- 1 file changed, 17 insertions(+), 14 deletions(-) diff --git a/migration/savevm.c b/migration/savevm.c index c8d93eee1e..870199b629 100644 --- a/migration/savevm.c +++ b/migration/savevm.c @@ -2448,38 +2448,43 @@ qemu_loadvm_section_part_end(QEMUFile *f, Migration= IncomingState *mis) return 0; } =20 -static int qemu_loadvm_state_header(QEMUFile *f) +static int qemu_loadvm_state_header(QEMUFile *f, Error **errp) { unsigned int v; int ret; =20 v =3D qemu_get_be32(f); if (v !=3D QEMU_VM_FILE_MAGIC) { - error_report("Not a migration stream"); - return -EINVAL; + error_setg(errp, "Not a migration stream, magic %x !=3D %x", + v, QEMU_VM_FILE_MAGIC); + return -1; } =20 v =3D qemu_get_be32(f); if (v =3D=3D QEMU_VM_FILE_VERSION_COMPAT) { - error_report("SaveVM v2 format is obsolete and don't work anymore"= ); - return -ENOTSUP; + error_setg(errp, "SaveVM v2 format is obsolete and don't work anym= ore"); + return -1; } if (v !=3D QEMU_VM_FILE_VERSION) { - error_report("Unsupported migration stream version"); - return -ENOTSUP; + error_setg(errp, "Unsupported migration stream, version %x !=3D %x= ", + v, QEMU_VM_FILE_VERSION); + return -1; } =20 if (migrate_get_current()->send_configuration) { - if (qemu_get_byte(f) !=3D QEMU_VM_CONFIGURATION) { - error_report("Configuration section missing"); + v =3D qemu_get_byte(f); + if (v !=3D QEMU_VM_CONFIGURATION) { + error_setg(errp, "Configuration section missing, %x !=3D %x", + v, QEMU_VM_CONFIGURATION); qemu_loadvm_state_cleanup(); - return -EINVAL; + return -1; } ret =3D vmstate_load_state(f, &vmstate_configuration, &savevm_stat= e, 0); =20 if (ret) { + error_setg(errp, "Error %d while loading VM state", ret); qemu_loadvm_state_cleanup(); - return ret; + return -1; } } return 0; @@ -2647,9 +2652,7 @@ int qemu_loadvm_state(QEMUFile *f, Error **errp) return -1; } =20 - ret =3D qemu_loadvm_state_header(f); - if (ret) { - error_setg(errp, "Error %d while loading VM state", ret); + if (qemu_loadvm_state_header(f, errp) < 0) { return -1; } =20 --=20 2.29.2