- Replace most remaining uses of l_addr with uvm_lwp_getuarea() or lwp_getpcb().
- Amend assembly in ports where it accesses PCB via struct user.
- Rename L_ADDR to L_PCB in few places. Reduce sys/user.h inclusions.
of transitions to IPL_HIGH from lower IPLs. SPLDEBUG is only available
on i386 and Xen kernels, today.
'options SPLDEBUG' adds instrumentation to spllower() and splraise() as
well as routines to start/stop debugging and to record IPL transitions:
spldebug_start(), spldebug_stop(), spldebug_raise(), spldebug_lower().
in xbdback_co_cache_flush2(), we don't advance the req pointer. In this
case call xbdi_put() to compensate for the xbdi_get() that will be done again
in xbdback_co_main_loop().
Fix stalled xbdback detach that would stall the whole xenbus thread,
preventing new domU from be created.
xbd: if feature-flush-cache is present, use it for DIOCCACHESYNC.
If not present, make DIOCCACHESYNC return EOPNOTSUPP and warn on
first call.
Should improve WAPBL reliability of Xen guests on a NetBSD dom0.
Unfortunably not all linux guests seems to support this feature, and using
feature-write-barrier would require a B_BARRIER flag in the buffer.
are now compiled in by default.
Note that MSR support in Xen depends on its version. rdmsr() should always
succeed, but wrmsr() to certain registers can end in a NOOP. In that case,
the error will be logged (see xm dmesg).
Setting CPU frequency (SpeedStep) requires Xen 3.3 with the option
cpufreq="dom0-kernel" passed down to hypervisor during boot.
Compiled and tested for SpeedStep under i386 for XEN3_DOM0 and XEN3PAE_DOM0
by jym@. amd64 was tested by Joel Carnat.
See also http://mail-index.netbsd.org/port-xen/2009/08/02/msg005213.html .
Commit requested by bouyer@.
Call rtc_set_ymdhms() from xen/xen/clock.c:xen_rtc_set() for xen3 dom0
kernels as the Xen3 hypervisor doesn't write the new date/time to the CMOS
by itself.
Now a XEN3_DOM0 kernel properly updates the CMOS time.
write a "feature-rx-notify" to the xenstore, which is used by recent
linux dom0 kernels. This reduce packet loss when using a NetBSD domU
on such linux dom0.
This entry is ignored by NetBSD and older linux domUs.
than one active reference to a file descriptor. It should dislodge threads
sleeping while holding a reference to the descriptor. Implemented only for
sockets but should be extended to pipes, fifos, etc.
Fixes the case of a multithreaded process doing something like the
following, which would have hung until the process got a signal.
thr0 accept(fd, ...)
thr1 close(fd)
