Re: [libvirt] [PATCH 07/13] qemu: Add hotpluging support for PCI devices on S390 guests
On Thu, 24 May 2018 14:24:32 +0200
Xiao Feng Ren <renxiaof(a)linux.vnet.ibm.com> wrote:
From: Yi Min Zhao <zyimin(a)linux.ibm.com>
This commit adds hotplug support for PCI devices on S390 guests.
There's no need to implement hot unplug for zPCI as QEMU implements
an unplug callback which will unplug both PCI and zPCI device in a
cascaded way.
Currently, the following PCI devices are supported:
virtio-blk-pci
virtio-net-pci
virtio-rng-pci
virtio-input-host-pci
virtio-keyboard-pci
virtio-mouse-pci
virtio-tablet-pci
vfio-pci
Shmem device
SCSIVhost device
Hm, how did you arrive at this list? Is it 'anything that uses msi-x'?
Signed-off-by: Yi Min Zhao <zyimin(a)linux.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy(a)linux.vnet.ibm.com>
Reviewed-by: Stefan Zimmermann <stzi(a)linux.ibm.com>
Reviewed-by: Bjoern Walk <bwalk(a)linux.vnet.ibm.com>
---
src/qemu/qemu_hotplug.c | 175 +++++++++++++++++++++++++++++++++++++++++++-----
1 file changed, 158 insertions(+), 17 deletions(-)