mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2024-11-09 23:10:08 +00:00
2c4c347c4b
To allow using -blockdev with blockjobs QEMU needs to reopen files in read-write mode when modifying the backing chain. To achieve this we need to use 'auto-read-only' for the backing files rather than the normal 'read-only' property. That way qemu knows that the files need to be reopened. Note that the format drivers (e.g. qcow2) are still opened with the read-only property enabled when being a member of the backing chain since they are supposed to be immutable unless a block job is started. QEMU v4.0 (since commit 23dece19da4) allows also dynamic behaviour for auto-read-only which allows us to use sVirt as we only grant write permissions to files when doing a blockjob. Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
42 lines
1.4 KiB
Plaintext
42 lines
1.4 KiB
Plaintext
LC_ALL=C \
|
|
PATH=/bin \
|
|
HOME=/tmp/lib/domain--1-QEMUGuest1 \
|
|
USER=test \
|
|
LOGNAME=test \
|
|
XDG_DATA_HOME=/tmp/lib/domain--1-QEMUGuest1/.local/share \
|
|
XDG_CACHE_HOME=/tmp/lib/domain--1-QEMUGuest1/.cache \
|
|
XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
|
|
QEMU_AUDIO_DRV=none \
|
|
NS=ns \
|
|
BAR='' \
|
|
/usr/bin/qemu-system-i686 \
|
|
-name guest=QEMUGuest1,debug-threads=on \
|
|
-S \
|
|
-object secret,id=masterKey0,format=raw,\
|
|
file=/tmp/lib/domain--1-QEMUGuest1/master-key.aes \
|
|
-machine pc,accel=tcg,usb=off,dump-guest-core=off \
|
|
-m 214 \
|
|
-overcommit mem-lock=off \
|
|
-smp 1,sockets=1,cores=1,threads=1 \
|
|
-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \
|
|
-display none \
|
|
-no-user-config \
|
|
-nodefaults \
|
|
-chardev socket,id=charmonitor,fd=1729,server,nowait \
|
|
-mon chardev=charmonitor,id=monitor,mode=control \
|
|
-rtc base=utc \
|
|
-no-shutdown \
|
|
-no-acpi \
|
|
-boot strict=on \
|
|
-device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
|
|
-blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1",\
|
|
"node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
|
|
-blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw",\
|
|
"file":"libvirt-1-storage"}' \
|
|
-device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
|
|
-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
|
|
-unknown parameter \
|
|
-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,\
|
|
resourcecontrol=deny \
|
|
-msg timestamp=on
|