[RFC: vf-token 0/5] Introduce vf-token when using userspace PF

vf token is set by a vfio-pci based PF driver and it must be known to the vfio-pci based VF driver. This vf-token is set by the PF driver before VF drivers can access the device. vfio-pci driver and qemu support vf-token. This RFC patch series adds support to provide the vf-token (uuid format) in the domain XML and to generate the qemu commandline including the vf-token. To support vf-token the new element will be used as follows: <hostdev mode='subsystem' type='pci' managed='yes'> <driver name='vfio'/> <source> <address domain='0x0000' bus='0x0' slot='0x00' function='0x1'> <vf-token uuid='00112233-4455-6677-8899-aabbccddeeff'/> </address> </source> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/> </hostdev> The generated commandline will include the following: -device {"driver":"vfio-pci","host":"0000:00:0.1", "vf-token":"00112233-4455-6677-8899-aabbccddeeff", "id":"hostdev0","bus":"pci.0","addr":"0x1"} This patch is get feedback on the approach. Will post with add documentation and testcases in follow-up. Vivek Kashyap (5): virpci: Define vf-token qemu: vf-token capability conf: vf-token flag conf: vf-token parsing and formatting qemu: validate and generate vf-token on command line src/conf/device_conf.c | 31 +++++++++++++++++++++++++++++-- src/conf/device_conf.h | 3 +++ src/conf/domain_addr.h | 1 + src/conf/domain_conf.c | 5 +++++ src/conf/schemas/basictypes.rng | 11 +++++++++++ src/conf/schemas/domaincommon.rng | 1 + src/libvirt_private.syms | 1 + src/qemu/qemu_capabilities.c | 3 +++ src/qemu/qemu_capabilities.h | 1 + src/qemu/qemu_command.c | 27 ++++++++++++++++++++++++--- src/qemu/qemu_domain_address.c | 3 +++ src/qemu/qemu_validate.c | 19 +++++++++++++++++++ src/util/virpci.c | 5 +++++ src/util/virpci.h | 11 +++++++++++ 14 files changed, 117 insertions(+), 5 deletions(-) -- 2.25.1