- 19 7月, 2013 1 次提交
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由 Eric Blake 提交于
Long lines are harder to read and harder to diff; in fact, if lines get too long (> 1000 bytes), it starts causing issues where git send-email refuses to send patches for the file. I've cleaned up the tests directory in the past (see commits bd6c46fa, 3b750d13), but new long lines have been introduced in the meantime. Why 90 instead of 80? Because there were too many tests on the fringe edge, and I didn't want to edit that many files. Add a syntax check to prevent future long lines. * cfg.mk (sc_prohibit_long_lines): New rule. * tests/qemuxml2argvdata/qemuxml2argv-*.args: Split lines of any file with content longer than 90 columns. * tests/storagevolxml2argvdata/*.argv: Likewise. Signed-off-by: NEric Blake <eblake@redhat.com>
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- 30 10月, 2012 1 次提交
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由 Vladislav Bogdanov 提交于
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- 09 1月, 2012 1 次提交
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由 Laine Stump 提交于
In the past, generic SCSI commands issued from a guest to a virtio disk were always passed through to the underlying disk by qemu, and the kernel would also pass them on. As a result of CVE-2011-4127 (see: http://seclists.org/oss-sec/2011/q4/536), qemu now honors its scsi=on|off device option for virtio-blk-pci (which enables/disables passthrough of generic SCSI commands), and the kernel will only allow the commands for physical devices (not for partitions or logical volumes). The default behavior of qemu is still to allow sending generic SCSI commands to physical disks that are presented to a guest as virtio-blk-pci devices, but libvirt prefers to disable those commands in the standard virtio block devices, enabling it only when specifically requested (hopefully indicating that the requester understands what they're asking for). For this purpose, a new libvirt disk device type (device='lun') has been created. device='lun' is identical to the default device='disk', except that: 1) It is only allowed if bus='virtio', type='block', and the qemu version is "new enough" to support it ("new enough" == qemu 0.11 or better), otherwise the domain will fail to start and a CONFIG_UNSUPPORTED error will be logged). 2) The option "scsi=on" will be added to the -device arg to allow SG_IO commands (if device !='lun', "scsi=off" will be added to the -device arg so that SG_IO commands are specifically forbidden). Guests which continue to use disk device='disk' (the default) will no longer be able to use SG_IO commands on the disk; those that have their disk device changed to device='lun' will still be able to use SG_IO commands. *docs/formatdomain.html.in - document the new device attribute value. *docs/schemas/domaincommon.rng - allow it in the RNG *tests/* - update the args of several existing tests to add scsi=off, and add one new test that will test scsi=on. *src/conf/domain_conf.c - update domain XML parser and formatter *src/qemu/qemu_(command|driver|hotplug).c - treat VIR_DOMAIN_DISK_DEVICE_LUN *almost* identically to VIR_DOMAIN_DISK_DEVICE_DISK, except as indicated above. Note that no support for this new device value was added to any hypervisor drivers other than qemu, because it's unclear what it might mean (if anything) to those drivers.
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- 15 6月, 2011 1 次提交
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由 Jiri Denemark 提交于
Prefer bootindex=N option for -device over the old way -boot ORDER possibly accompanied with boot=on option for -drive. This gives us full control over which device will actually be used for booting guest OS. Moreover, if qemu doesn't support boot=on, this is the only way to boot of certain disks in some configurations (such as virtio disks when used together IDE disks) without transforming domain XML to use per device boot elements.
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