diff options
Diffstat (limited to 'include/hw/s390x/css.h')
| -rw-r--r-- | include/hw/s390x/css.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/hw/s390x/css.h b/include/hw/s390x/css.h index 98b2e2cc79..38f4d77779 100644 --- a/include/hw/s390x/css.h +++ b/include/hw/s390x/css.h @@ -151,5 +151,22 @@ int css_do_rsch(SubchDev *sch); int css_do_rchp(uint8_t cssid, uint8_t chpid); bool css_present(uint8_t cssid); #endif +/* + * Identify a device within the channel subsystem. + * Note that this can be used to identify either the subchannel or + * the attached I/O device, as there's always one I/O device per + * subchannel. + */ +typedef struct CssDevId { + uint8_t cssid; + uint8_t ssid; + uint16_t devid; + bool valid; +} CssDevId; + +extern PropertyInfo css_devid_propinfo; + +#define DEFINE_PROP_CSS_DEV_ID(_n, _s, _f) \ + DEFINE_PROP(_n, _s, _f, css_devid_propinfo, CssDevId) #endif |