From: bugzilla@dpdk.org
To: dev@dpdk.org
Subject: [Bug 76] 2MB hugepages with IOMMU and passthrough not working
Date: Wed, 25 Jul 2018 09:18:53 +0000 [thread overview]
Message-ID: <bug-76-3@http.bugs.dpdk.org/> (raw)
https://bugs.dpdk.org/show_bug.cgi?id=76
Bug ID: 76
Summary: 2MB hugepages with IOMMU and passthrough not working
Product: DPDK
Version: 18.05
Hardware: All
OS: All
Status: CONFIRMED
Severity: normal
Priority: Normal
Component: core
Assignee: dev@dpdk.org
Reporter: kevuzaj@gmail.com
Target Milestone: ---
With this combination, when testpmd is run in the guest after some initial
packets (< 1000), all other packets are Rx-missed. Working in 18.02.0, not
working in 18.05.0 or master (711f43ba568ac).
i.e. combination of below in libvirt xml, with 2MB hugepages in guest not
working.
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
</source>
<address type='pci' domain='0x0000' bus='0x06' slot='0x00'
function='0x0'/>
</hostdev>
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address domain='0x0000' bus='0x01' slot='0x00' function='0x1'/>
</source>
<address type='pci' domain='0x0000' bus='0x07' slot='0x00'
function='0x0'/>
</hostdev>
...
<iommu model='intel'>
<driver intremap='on' caching_mode='on' iotlb='on'/>
</iommu>
Working if remove IOMMU or switch to 1GB hugepages in guest. Tested with
82599ES.
--
You are receiving this mail because:
You are the assignee for the bug.
reply other threads:[~2018-07-25 9:18 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=bug-76-3@http.bugs.dpdk.org/ \
--to=bugzilla@dpdk.org \
--cc=dev@dpdk.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.