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Re: Problem with PCI-passthrough to PV guest
- To: Roger Pau Monné <roger.pau@xxxxxxxxxx>
- From: Jürgen Groß <jgross@xxxxxxxx>
- Date: Wed, 6 May 2026 10:45:49 +0200
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- Cc: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- Delivery-date: Wed, 06 May 2026 08:45:58 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 05.05.26 20:47, Roger Pau Monné wrote:
On Tue, May 05, 2026 at 05:53:31PM +0200, Jürgen Groß wrote:
SUSE QA is seeing a problem with PCI-passthrough of a SR-IOV to a PV guest
running a 6.4 based kernel, but I can reproduce the problem with upstream
kernel, too.
Uh, seems my tested kernel was only "nearly upstream" (it was an early
7.0 kernel). It was missing commit 0949c646d646, which makes the difference.
So for now this issue will only show up for cases where a PV-guest is
setup for PCI passthrough and it gets memory hotplugged before the PCI
device is added to it.
Juergen
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