From patchwork Mon Jan 9 17:02:45 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ashijeet Acharya X-Patchwork-Id: 9505595 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id AFE4960757 for ; Mon, 9 Jan 2017 17:07:30 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B9D9A284C0 for ; Mon, 9 Jan 2017 17:07:30 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id ADE18284C6; Mon, 9 Jan 2017 17:07:30 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.2 required=2.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_HI, RCVD_IN_SORBS_WEB, T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 893C9284C0 for ; Mon, 9 Jan 2017 17:07:29 +0000 (UTC) Received: from localhost ([::1]:41324 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cQdPs-00041d-Fy for patchwork-qemu-devel@patchwork.kernel.org; Mon, 09 Jan 2017 12:07:28 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:56132) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cQdLN-0000ad-2Y for qemu-devel@nongnu.org; Mon, 09 Jan 2017 12:02:50 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cQdLM-0005Tn-5h for qemu-devel@nongnu.org; Mon, 09 Jan 2017 12:02:49 -0500 Received: from mail-pg0-x244.google.com ([2607:f8b0:400e:c05::244]:34932) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1cQdLM-0005Td-0g for qemu-devel@nongnu.org; Mon, 09 Jan 2017 12:02:48 -0500 Received: by mail-pg0-x244.google.com with SMTP id 204so5380133pge.2 for ; Mon, 09 Jan 2017 09:02:47 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=0DhZgo8m8W7h9OkKLqrqY8tHOPqHY9XERqcvZRR3Dgg=; b=ok2CDN6gBU8713op99IgipKWUVaDh/4VbjY5e5XMHw3QB508NUPiuasdW4MTv4qHGh 59gT5np6SXbYlJhiufMlQFpJognJ9rvkXQ3MoLQf+/rRqr5tPpa14C94hbCjY0s/z6BC FtSl/PM77ejWwdDG1Ldu2qCeNUqVMmQTFLZZyTH2AS8xB02YsuuAIgkSuvxBJjSCLcL0 vGtzIvmUWYLQG4Y7qGMpoLmeR/3pDBxY9xoy4qK6hht4bMAhkyQpKLsMyoI/SVLorg+t IKwM1CxMBeDZktOhMxS8TrEdGw+BYgJAdlpXMzXoQDZ2BVtyh6EUTclkmJ6kna9bJBcY /uYQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=0DhZgo8m8W7h9OkKLqrqY8tHOPqHY9XERqcvZRR3Dgg=; b=Ouzkomy/4GoJuxoANIGozsa0eOuwVMQnaQEtAA53A9KJjjPnExS8cyrT628S+3Skl4 MaXkxwAK82Qjc3dvfduXR9lt+NCckhvH3NhSBha7bLj5vlLlQdS8bL1N4cSdX4HlSuAk fdD2ih4iKBa6gww0amK2uD/x5gDaGmO8Tm1vk+mJNKhcqr/lekYQndL3rhr8saCEFra7 KrtlzH/fmUd2IYZxx8zXv3CH+ZL+rf5LoOcmF5nC3wZBr3EHX6aFdvy0Fv+gikb7ej8s e4ULJxuZ+gX0O0D3sXO/v4tTD+/isKLWm+WN22b3yQTGm8Uq7ZAJ/5uDfDcP7ZY/fZzF HB9g== X-Gm-Message-State: AIkVDXLHBmG7JkNL5JNV0s7vFovEAZT1ThreYV65EiOdkPGAqnNboULfr4/qSrgbQJvIgg== X-Received: by 10.99.185.1 with SMTP id z1mr162141954pge.179.1483981366991; Mon, 09 Jan 2017 09:02:46 -0800 (PST) Received: from linux.local ([27.251.197.196]) by smtp.gmail.com with ESMTPSA id 72sm180907325pfw.37.2017.01.09.09.02.42 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 09 Jan 2017 09:02:46 -0800 (PST) From: Ashijeet Acharya To: dgilbert@redhat.com Date: Mon, 9 Jan 2017 22:32:45 +0530 Message-Id: <1483981368-9965-2-git-send-email-ashijeetacharya@gmail.com> X-Mailer: git-send-email 2.6.2 In-Reply-To: <1483981368-9965-1-git-send-email-ashijeetacharya@gmail.com> References: <1483981368-9965-1-git-send-email-ashijeetacharya@gmail.com> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2607:f8b0:400e:c05::244 Subject: [Qemu-devel] [PATCH v4 1/4] migration: Add a new option to enable only-migratable X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, peter.maydell@linaro.org, quintela@redhat.com, qemu-devel@nongnu.org, mst@redhat.com, armbru@redhat.com, groug@kaod.org, aneesh.kumar@linux.vnet.ibm.com, Ashijeet Acharya , marcandre.lureau@redhat.com, amit.shah@redhat.com, pbonzini@redhat.com, jsnow@redhat.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP Add a new option "--only-migratable" in qemu which will allow to add only those devices which will not fail qemu after migration. Devices set with the flag 'unmigratable' cannot be added when this option will be used. Signed-off-by: Ashijeet Acharya Reviewed-by: Dr. David Alan Gilbert --- include/migration/migration.h | 3 +++ qemu-options.hx | 9 +++++++++ vl.c | 4 ++++ 3 files changed, 16 insertions(+) diff --git a/include/migration/migration.h b/include/migration/migration.h index c309d23..40b3697 100644 --- a/include/migration/migration.h +++ b/include/migration/migration.h @@ -38,6 +38,9 @@ #define QEMU_VM_COMMAND 0x08 #define QEMU_VM_SECTION_FOOTER 0x7e +/* for vl.c */ +extern int only_migratable; + struct MigrationParams { bool blk; bool shared; diff --git a/qemu-options.hx b/qemu-options.hx index c534a2f..1e16ae8 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -3574,6 +3574,15 @@ be used to change settings (such as migration parameters) prior to issuing the migrate_incoming to allow the migration to begin. ETEXI +DEF("only-migratable", 0, QEMU_OPTION_only_migratable, \ + "-only-migratable allow only migratable devices\n", QEMU_ARCH_ALL) +STEXI +@item -only-migratable +@findex -only-migratable +Only allow migratable devices. Devices will not be allowed to enter an +unmigratable state. +ETEXI + DEF("nodefaults", 0, QEMU_OPTION_nodefaults, \ "-nodefaults don't create default devices\n", QEMU_ARCH_ALL) STEXI diff --git a/vl.c b/vl.c index d77dd86..82bffb9 100644 --- a/vl.c +++ b/vl.c @@ -180,6 +180,7 @@ bool boot_strict; uint8_t *boot_splash_filedata; size_t boot_splash_filedata_size; uint8_t qemu_extra_params_fw[2]; +int only_migratable = 0; /* turn it off unless user states otherwise */ int icount_align_option; @@ -3914,6 +3915,9 @@ int main(int argc, char **argv, char **envp) } incoming = optarg; break; + case QEMU_OPTION_only_migratable: + only_migratable = 1; + break; case QEMU_OPTION_nodefaults: has_defaults = 0; break;