Bug 1851249
Summary: | Support hv-passthrough mode | ||
---|---|---|---|
Product: | Red Hat Enterprise Linux 9 | Reporter: | Eduardo Habkost <ehabkost> |
Component: | libvirt | Assignee: | Tim Wiederhake <twiederh> |
libvirt sub component: | General | QA Contact: | Luyao Huang <lhuang> |
Status: | CLOSED ERRATA | Docs Contact: | |
Severity: | medium | ||
Priority: | medium | CC: | dyuan, jdenemar, jsuchane, lmen, mprivozn, twiederh, virt-maint, xuzhang, yalzhang |
Version: | 9.0 | Keywords: | AutomationBackLog, FutureFeature, Triaged |
Target Milestone: | rc | ||
Target Release: | --- | ||
Hardware: | x86_64 | ||
OS: | Unspecified | ||
Whiteboard: | |||
Fixed In Version: | libvirt-8.0.0-0rc1.1.el9 | Doc Type: | If docs needed, set a value |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2022-05-17 12:45:05 UTC | Type: | Feature Request |
Regression: | --- | Mount Type: | --- |
Documentation: | --- | CRM: | |
Verified Versions: | Category: | --- | |
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
Cloudforms Team: | --- | Target Upstream Version: | 8.0.0 |
Embargoed: |
Description
Eduardo Habkost
2020-06-25 22:05:25 UTC
Libvirt could also leverage hv-passthrough to figure out which Hyper-V enlightenments are supported (for https://bugzilla.redhat.com/show_bug.cgi?id=1717611) the same way it does with host CPU features (running QEMU with "-cpu host" and querying all supported CPUIDs). Bulk update: Move RHEL-AV bugs to RHEL9. If necessary to resolve in RHEL8, then clone to the current RHEL8 release. Merged upstream: https://gitlab.com/libvirt/libvirt/-/commit/8b6766bd77108dc826715a359157d113baaa6f8f Verify this bug with libvirt-8.0.0-1.el9.x86_64: 1. prepare a guest which have hv-passthrough element: # virsh dumpxml vm1 ... <features> <acpi/> <apic/> <hyperv mode='passthrough'> </hyperv> </features> ... 2. start guest # virsh start vm1 Domain 'vm1' started 3. check qemu command line and make sure that libvirt add hv-passthrough=on in qemu command line # ps aux|grep qemu ... -cpu Skylake-Client-IBRS,...,hv-passthrough=on ... 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 (new packages: libvirt), 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/RHBA-2022:2390 |