xemu/hw/s390x/trace-events
Matthew Rosato 1e7552ff5c s390x/pci: get zPCI function info from host
We use the capability chains of the VFIO_DEVICE_GET_INFO ioctl to retrieve
the CLP information that the kernel exports.

To be compatible with previous kernel versions we fall back on previous
predefined values, same as the emulation values, when the ioctl is found
to not support capability chains. If individual CLP capabilities are not
found, we fall back on default values for only those capabilities missing
from the chain.

This patch is based on work previously done by Pierre Morel.

Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
[aw: non-Linux build fixes]
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2020-11-01 12:30:52 -07:00

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# See docs/devel/tracing.txt for syntax documentation.
# css.c
css_enable_facility(const char *facility) "CSS: enable %s"
css_crw(uint8_t rsc, uint8_t erc, uint16_t rsid, const char *chained) "CSS: queueing crw: rsc=0x%x, erc=0x%x, rsid=0x%x %s"
css_chpid_add(uint8_t cssid, uint8_t chpid, uint8_t type) "CSS: add chpid %x.%02x (type 0x%02x)"
css_new_image(uint8_t cssid, const char *default_cssid) "CSS: add css image 0x%02x %s"
css_assign_subch(const char *do_assign, uint8_t cssid, uint8_t ssid, uint16_t schid, uint16_t devno) "CSS: %s %x.%x.%04x (devno 0x%04x)"
css_io_interrupt(int cssid, int ssid, int schid, uint32_t intparm, uint8_t isc, const char *conditional) "CSS: I/O interrupt on sch %x.%x.%04x (intparm 0x%08x, isc 0x%x) %s"
css_adapter_interrupt(uint8_t isc) "CSS: adapter I/O interrupt (isc 0x%x)"
css_do_sic(uint16_t mode, uint8_t isc) "CSS: set interruption mode 0x%x on isc 0x%x"
# virtio-ccw.c
virtio_ccw_interpret_ccw(int cssid, int ssid, int schid, int cmd_code) "VIRTIO-CCW: %x.%x.%04x: interpret command 0x%x"
virtio_ccw_new_device(int cssid, int ssid, int schid, int devno, const char *devno_mode) "VIRTIO-CCW: add subchannel %x.%x.%04x, devno 0x%04x (%s)"
virtio_ccw_set_ind(uint64_t ind_loc, uint8_t ind_old, uint8_t ind_new) "VIRTIO-CCW: indicator at %" PRIu64 ": 0x%x->0x%x"
# s390-pci-vfio.c
s390_pci_clp_cap(const char *id, uint32_t cap) "PCI: %s: missing expected CLP capability %u"
s390_pci_clp_cap_size(const char *id, uint32_t size, uint32_t cap) "PCI: %s: bad size (%u) for CLP capability %u"
s390_pci_clp_dev_info(const char *id) "PCI: %s: cannot read vfio device info"