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From 3cae2bf94bf3ef300facbd31214dbeae7b2ad7b7 Mon Sep 17 00:00:00 2001
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From: Max Reitz <mreitz@redhat.com>
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Date: Mon, 4 Nov 2013 22:31:57 +0100
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Subject: [PATCH 04/87] block: Bugfix 'format' and 'snapshot' used in drive option
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RH-Author: Max Reitz <mreitz@redhat.com>
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Message-id: <1383604354-12743-7-git-send-email-mreitz@redhat.com>
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Patchwork-id: 55306
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O-Subject: [RHEL-7.0 qemu-kvm PATCH 06/43] block: Bugfix 'format' and 'snapshot' used in drive option
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Bugzilla: 1026524
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RH-Acked-by: Kevin Wolf <kwolf@redhat.com>
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RH-Acked-by: Laszlo Ersek <lersek@redhat.com>
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RH-Acked-by: Fam Zheng <famz@redhat.com>
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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From: Mike Qiu <qiudayu@linux.vnet.ibm.com>
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BZ: 1026524
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When use -drive file='xxx',format=qcow2,snapshot=on the error
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message "Can't use snapshot=on with driver-specific options"
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can be show, and fail to start the qemu.
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This should not be happened, and there is no file.driver option
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in qemu command line.
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It is because the commit 74fe54f2a1b5c4f4498a8fe521e1dfc936656cd4,
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it puts 'driver' option if the command line use 'format' option.
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This patch is to solve this bug.
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Signed-off-by: Mike Qiu <qiudayu@linux.vnet.ibm.com>
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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(cherry picked from commit 6db5f5d68e2ffc430ba0511e23fc36c7363510f1)
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Signed-off-by: Max Reitz <mreitz@redhat.com>
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---
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blockdev.c | 12 +++++++++---
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1 file changed, 9 insertions(+), 3 deletions(-)
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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blockdev.c | 12 +++++++++---
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1 files changed, 9 insertions(+), 3 deletions(-)
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diff --git a/blockdev.c b/blockdev.c
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index 6710f61..a6563fa 100644
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--- a/blockdev.c
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+++ b/blockdev.c
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@@ -342,6 +342,7 @@ static DriveInfo *blockdev_init(QemuOpts *all_opts,
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QDict *bs_opts;
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const char *id;
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bool has_driver_specific_opts;
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+ BlockDriver *drv = NULL;
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translation = BIOS_ATA_TRANSLATION_AUTO;
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media = MEDIA_DISK;
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@@ -487,7 +488,11 @@ static DriveInfo *blockdev_init(QemuOpts *all_opts,
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return NULL;
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}
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- qdict_put(bs_opts, "driver", qstring_from_str(buf));
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+ drv = bdrv_find_whitelisted_format(buf, ro);
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+ if (!drv) {
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+ error_report("'%s' invalid format", buf);
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+ return NULL;
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+ }
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}
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/* disk I/O throttling */
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@@ -702,12 +707,13 @@ static DriveInfo *blockdev_init(QemuOpts *all_opts,
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}
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QINCREF(bs_opts);
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- ret = bdrv_open(dinfo->bdrv, file, bs_opts, bdrv_flags, NULL);
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+ ret = bdrv_open(dinfo->bdrv, file, bs_opts, bdrv_flags, drv);
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if (ret < 0) {
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if (ret == -EMEDIUMTYPE) {
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error_report("could not open disk image %s: not in %s format",
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- file ?: dinfo->id, qdict_get_str(bs_opts, "driver"));
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+ file ?: dinfo->id, drv ? drv->format_name :
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+ qdict_get_str(bs_opts, "driver"));
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} else {
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error_report("could not open disk image %s: %s",
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file ?: dinfo->id, strerror(-ret));
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--
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1.7.1
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