[Qemu-devel] [PATCH v6 0/2] PCI-e device multi-function hot-add support

[Cao jin]

Support multi-function hot-add of PCIe device via device_add, just ensure
function 0 is added last. While allow user to cancel the hot-add operation
via device_del.

changelog v6:
1. reimplement pci_get_function_0() using mst`s suggestion code
2. modify pcie_cap_slot_hot_unplug_request_cb(), because PCIe device only
   have 1 slot.

changelog v5:
1. change pci_is_function_0() to pci_get_function_0(),
   and use it according to v4 comments.
2. reimplement the content of pci_get_function_0()

changelog v4:
1. take ari into account, add api: pci_is_function_0()
2. reorder the patch
3. other minor fix according to the v3 comment

changelog v3:
1. Flag device as unexposed when func 0 doesn`t exist, via return 0xFF
   in case of gratuitous pci bus scan.
2. Since device is unexposed to guest, can remove function individually,
   without interaction with the guest.

Cao jin (2):
  remove function during multi-function hot-add
  enable multi-function hot-add

 hw/pci/pci.c         | 40 +++++++++++++++++++++++++++++++++++++++-
 hw/pci/pci_host.c    | 13 +++++++++++--
 hw/pci/pcie.c        | 39 ++++++++++++++++++++++++++-------------
 include/hw/pci/pci.h |  1 +
 4 files changed, 77 insertions(+), 16 deletions(-)

-- 
2.1.0