Bug 1549596 - Add support in virtio-rng Windows driver for VIRTIO_F_IOMMU_PLATFORM virtio feature
Summary: Add support in virtio-rng Windows driver for VIRTIO_F_IOMMU_PLATFORM virtio f...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: virtio-win
Version: 8.0
Hardware: Unspecified
OS: Windows
low
low
Target Milestone: rc
: ---
Assignee: Yvugenfi@redhat.com
QA Contact: lijin
URL:
Whiteboard:
Depends On: Red Hat1682882
Blocks: 1549577 Red Hat1558351
TreeView+ depends on / blocked
 
Reported: 2018-02-27 13:29 UTC by Yvugenfi@redhat.com
Modified: 2021-09-03 15:32 UTC (History)
6 users (show)

Fixed In Version: virtio-win-prewhql-0.1-174
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2020-04-28 16:05:15 UTC
Type: Feature Request
Target Upstream Version:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker RHELPLAN-11366 0 None None None 2021-09-03 15:32:05 UTC
Red Hat Product Errata RHEA-2020:1757 0 None None None 2020-04-28 16:06:07 UTC

Description Yvugenfi@redhat.com 2018-02-27 13:29:39 UTC 
Description of problem:
virtio-win drivers are not reporting VIRTIO_F_IOMMU_PLATFORM feature.

There are several things that should be done to fix it:

1. Ensure that Windows drivers are using Windows kernel DMA (easier for storage and network drivers that are already using framework specific APIs, additional work should be done for WDF based drivers).

2. Report the feature.

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1.
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Actual results:


Expected results:


Additional info:
Comment 3 Yvugenfi@redhat.com 2019-12-11 12:59:12 UTC 
Changes are in: https://github.com/virtio-win/kvm-guest-drivers-windows/pull/418
Comment 6 menli@redhat.com 2019-12-16 05:21:06 UTC 
Reproduce it in virtio-win-prewhql-0.1-173.iso and vertified fixed in：

kernel-core-4.18.0-165.el8.x86_64
qemu-kvm-4.2.0-2.module+el8.2.0+5135+ed3b2489.x86_64
seabios-1.12.0-5.module+el8.2.0+4793+b09dd2fb.x86_64
virtio-win-prewhql-0.1-174.iso
Comment 12 errata-xmlrpc 2020-04-28 16:05:15 UTC 
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, 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/RHEA-2020:1757
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