[AMD Official Use Only] Hello Peter, Thanks for your response, we will try with the latest fedora and possibly also with the latest libvirt and re-test. Will reply with attached debug logs as mentioned below in case we still face the same issue with re-testing. Thanks, Ashish -----Original Message----- From: Peter Krempa <pkrempa@redhat.com> Sent: Friday, February 4, 2022 3:21 AM To: Kalra, Ashish <Ashish.Kalra@amd.com> Cc: libvirt-users@redhat.com; Grimm, Jon <Jon.Grimm@amd.com>; Ma, Mang-kwan <Mang-kwan.Ma@amd.com>; Huang2, Wei <Wei.Huang2@amd.com> Subject: Re: NVMe drive PCI passthrough and suprise hotplug On Thu, Feb 03, 2022 at 23:25:05 +0000, Kalra, Ashish wrote:
[AMD Official Use Only]
Well, I hope it's okay to use it for libvirt officially too ;)
Hi, I am using Fedora 33, with the following KVM, qemu and libvirt versions:
Note that Fedora 33 is already end-of-life, it would be great if you can re-test with a more recent version
QEMU 5.1.0 libvirt 6.6.0
specifically this was released 1.5 years ago
KVM 5.14.18
We have done pass-through of a PCIe NVMe device to the guest running on FC33 using either virt-manager or virsh and then we do the hot-unplug of the device while it is attached to the guest.
The device is no longer seen on the guest hardware device list on virt-manager and then we hotplug the device again and we are able to use it on the Host, but when we try to re-attach it to the guest, we get the following error message:
Requested operation is not valid, PCI device 0000:c4::00.0 is in use by driver QEMU, Domain fedora 33.
[...] Unfortunately the tracing you've done doesn't really help in seeing what gone wrong in libvirt. Please attach debug logs per https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.libvir...