Re: [libvirt] [PATCH v2 2/8] qemu: introduce vfio-ccw capability

From: Shalini Chellathurai Saroja <shalini(a)linux.vnet.ibm.com&gt; Let us introduce the capability vfio-ccw for supporting the basic channel I/O passthrough, which have been introduced in QEMU 2.10. The current focus is to support dasd-eckd (cu_type/dev_type = 0x3990/0x3390) as the target device. Let us also introduce the capability QEMU_CAPS_CCW_CSSID_UNRESTRICTED for virtual-css-bridge. This capability is based on the cssid-unrestricted property which exists if QEMU no longer enforces cssid restrictions based on ccw device types. Vfio-ccw capability is dependent on the hidden virtual-css-bridge, so that we are able to probe for the cssid-unrestriced property to make sure the devices are visible to non-mcss-e enabled guests. Signed-off-by: Shalini Chellathurai Saroja <shalini(a)linux.vnet.ibm.com&gt; Reviewed-by: Bjoern Walk <bwalk(a)linux.ibm.com&gt; Reviewed-by: Boris Fiuczynski <fiuczy(a)linux.ibm.com&gt; --- src/qemu/qemu_capabilities.c | 14 ++++++++++ src/qemu/qemu_capabilities.h | 4 +++ .../qemucapabilitiesdata/caps_2.10.0.s390x.replies | 28 ++++++++++++------- tests/qemucapabilitiesdata/caps_2.10.0.s390x.xml | 2 +- .../qemucapabilitiesdata/caps_2.11.0.s390x.replies | 28 ++++++++++++------- tests/qemucapabilitiesdata/caps_2.11.0.s390x.xml | 2 +- .../qemucapabilitiesdata/caps_2.12.0.s390x.replies | 31 ++++++++++++++++------ tests/qemucapabilitiesdata/caps_2.12.0.s390x.xml | 3 +++ .../qemucapabilitiesdata/caps_2.7.0.s390x.replies | 24 ++++++++++++----- tests/qemucapabilitiesdata/caps_2.7.0.s390x.xml | 2 +- .../qemucapabilitiesdata/caps_2.8.0.s390x.replies | 28 ++++++++++++------- tests/qemucapabilitiesdata/caps_2.8.0.s390x.xml | 2 +- .../qemucapabilitiesdata/caps_2.9.0.s390x.replies | 28 ++++++++++++------- tests/qemucapabilitiesdata/caps_2.9.0.s390x.xml | 2 +- 14 files changed, 142 insertions(+), 56 deletions(-)

diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index ae3d2a6..b2e1fab 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -476,6 +476,10 @@ VIR_ENUM_IMPL(virQEMUCaps, QEMU_CAPS_LAST, "nbd-tls", "tpm-crb", "virtual-css-bridge", + + /* 295 */ + "virtual-css-bridge.cssid-unrestricted", + "vfio-ccw", );