Bug 2036300
| Summary: | video heads can be configured for 'bochs_display' even max_outputs is not supported | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 9 | Reporter: | Lili Zhu <lizhu> |
| Component: | libvirt | Assignee: | Peter Krempa <pkrempa> |
| libvirt sub component: | General | QA Contact: | Lili Zhu <lizhu> |
| Status: | CLOSED ERRATA | Docs Contact: | |
| Severity: | unspecified | ||
| Priority: | unspecified | CC: | fjin, jdenemar, jtomko, pkrempa, virt-maint, xuzhang |
| Version: | 9.0 | Keywords: | Triaged |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | libvirt-8.1.0-1.el9 | Doc Type: | If docs needed, set a value |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2022-11-15 10:03:03 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | 8.1.0 |
| Embargoed: | |||
Fixed upstream:
commit 1652babf15cea63323411c450c408848f96e5866
Author: Peter Krempa <pkrempa>
Date: Tue Jan 18 16:59:35 2022 +0100
qemuValidateDomainDeviceDefVideo: Reject non-default video head count for devices not supporting it
Only QXL and virtio-vga actually propagate the 'heads' attribute as
'max_outputs' to the commandline of qemu. Reject the setting when
non-default value is used for any other video type.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2036300
Signed-off-by: Peter Krempa <pkrempa>
Reviewed-by: Ján Tomko <jtomko>
v8.0.0-109-g1652babf15
Tested with:
libvirt-daemon-8.2.0-1.fc35.x86_64
Tried to define a guest with the following xml snippet
<video>
<model type='bochs' heads='4'/>
<alias name='video0'/>
</video>
# virsh define avocado-vt-vm1.xml
error: Failed to define domain from avocado-vt-vm1.xml
error: unsupported configuration: video type 'bochs' doesn't support multiple 'heads'
Also tested with cirrus, vga, ramfb types, also reported the similar error.
Verify this bug with: libvirt-8.2.0-1.el9.x86_64 The verification steps are the same with that in Comment #2 As the testing result matches with the expected result, mark the bug as verified. Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (Low: libvirt security, bug fix, and enhancement update), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHSA-2022:8003 |
Description of problem: video heads configured even max_outputs is not supported Version-Release number of selected component (if applicable): libvirt-7.10.0-1.el9.x86_64 How reproducible: 100% Steps to Reproduce: 1. prepare a guest with the following xml ... <graphics type='vnc' port='-1' autoport='yes' listen='0.0.0.0'> <listen type='address' address='0.0.0.0'/> </graphics> <audio id='1' type='none'/> <video> <model type='bochs' vram='16384' heads='5' primary='yes'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/> </video> ... 2. start the guest # virsh start avocado-vt-vm1 Domain 'avocado-vt-vm1' started 3. check the qemu cmd line -device {"driver":"bochs-display","id":"video0","vgamem":16777216,"bus":"pcie.0","addr":"0x1"} (no max_outputs shown here) Expected results: Multi screens are only supported with spice+qxl and spice+virtio. When the graphics and video types do not support multi screens, should report error when define or start such guests Additional info: