This patch series is a follow up for the dicsussion at [1].
It adds ability for toolstack to chose Device part of SBDF for a PCI
device when passing it to DomU. First and last patches are quite
straightforward, but the second one ("tools: libxc: add virtual_sbdf
parameter to xc_assign_device") changes API of libxc, which is big
no-no, so it is just a starting point for a discussion. What is the
best way to do this?
Another topic for discussion is the first patch ("domctl/pci: add
ability to provide/request a virtual SBDF"). It extends existing
domctl for assigning devices, which is fine for this use case. But we
also discussed use case of virtio-pci devices, for which we want to
allocate/request vSBDFs as well. Problem is that we cant't use
assign_device call for this because there is no physical device which
can be assigned. Probably we will need another domctl - specifically
for allocating vSBDFs. But then there would be two domctls that are
capable of allocating vSBDFs: assign_device and this new call... So
yeah, I am open for suggestions.
[1] https://lore.kernel.org/all/d6a58e73-da51-40f1-a2f7-576274945...@xen.org/
Volodymyr Babchuk (3):
domctl/pci: add ability to provide/request a virtual SBDF
tools: libxc: add virtual_sbdf parameter to xc_assign_device
tools: libxl: use "vslot" parameter when assigning a PCI device
tools/include/xenctrl.h | 1 +
tools/libs/ctrl/xc_domain.c | 13 +++++++++-
tools/libs/light/libxl_pci.c | 9 +++++--
tools/ocaml/libs/xc/xenctrl_stubs.c | 2 +-
tools/python/xen/lowlevel/xc/xc.c | 2 +-
xen/drivers/passthrough/pci.c | 17 ++++++++-----
xen/drivers/vpci/vpci.c | 38 +++++++++++++++++++++++------
xen/include/public/domctl.h | 9 ++++++-
xen/include/xen/vpci.h | 4 +--
9 files changed, 73 insertions(+), 22 deletions(-)
--
2.43.0
