Re: [PATCH v7 12/12] hw/acpi: Make the PCI hot-plug aware of SR-IOV

[Lukasz Maniak]

On Mon, Apr 04, 2022 at 11:41:46AM +0200, Łukasz Gieryk wrote:
> On Thu, Mar 31, 2022 at 02:38:41PM +0200, Igor Mammedov wrote:
> > it's unclear what's bing hotpluged and unplugged, it would be better if
> > you included QEMU CLI and relevan qmp/monito commands to reproduce it.
> 
> Qemu CLI:
> ---------
> -device pcie-root-port,slot=0,id=rp0
> -device nvme-subsys,id=subsys0
> -device 
> nvme,id=nvme0,bus=rp0,serial=deadbeef,subsys=subsys0,sriov_max_vfs=1,sriov_vq_flexible=2,sriov_vi_flexible=1
> 
> Guest OS:
> ---------
> sudo nvme virt-mgmt /dev/nvme0 -c 0 -r 1 -a 1 -n 0
> sudo nvme virt-mgmt /dev/nvme0 -c 0 -r 0 -a 1 -n 0
> echo 1 > /sys/bus/pci/devices/0000:01:00.0/reset
> sleep 1
> echo 1 > /sys/bus/pci/devices/0000:01:00.0/sriov_numvfs
> nvme virt-mgmt /dev/nvme0 -c 1 -r 1 -a 8 -n 1
> nvme virt-mgmt /dev/nvme0 -c 1 -r 0 -a 8 -n 2
> nvme virt-mgmt /dev/nvme0 -c 1 -r 0 -a 9 -n 0
> sleep 2
> echo 01:00.1 > /sys/bus/pci/drivers/nvme/bind
> 
> Qemu monitor:
> -------------
> device_del nvme0
>

Hi Igor,

Do you need any more details on this?

Best regards,
Lukasz