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path: root/hw/wdt_ib700.c
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2011-03-21change all other clock references to use nanosecond resolution accessorsPaolo Bonzini
This was done with: sed -i 's/qemu_get_clock\>/qemu_get_clock_ns/' \ $(git grep -l 'qemu_get_clock\>' ) sed -i 's/qemu_new_timer\>/qemu_new_timer_ns/' \ $(git grep -l 'qemu_new_timer\>' ) after checking that get_clock and new_timer never occur twice on the same line. There were no missed occurrences; however, even if there had been, they would have been caught by the compiler. There was exactly one false positive in qemu_run_timers: - current_time = qemu_get_clock (clock); + current_time = qemu_get_clock_ns (clock); which is of course not in this patch. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2010-12-20wdt_ib700: Fix accidental use of SoftFloat int64 typeAndreas Färber
softfloat.h's int64 type has least-width semantics. Since we're assigning an int64_t, use plain int64_t. v4: * Summary change. v3: * Split off. Signed-off-by: Andreas Färber <andreas.faerber@web.de> Acked-by: Richard W.M. Jones <rjones@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-12-12Watchdog: disable watchdog timer when hard-rebooting a guest.Richard W.M. Jones
This commit causes the watchdog timer to be reset when a guest is hard-rebooted. The failure case previously was as follows: (a) guest boots, watchdog is enabled (b) guest does a reset eg: echo 'b' > /proc/sysrq-trigger (note that an ordinary /sbin/reboot wouldn't hit this case since as the watchdog daemon is shut down, the daemon would properly disable the watchdog device) (c) the reboot takes longer than the remaining time on the watchdog (d) the watchdog therefore fires during the reboot (e) probably the VM would just reboot again at this point which is pretty benign, but it could depend on the action that the user had selected for the watchdog Now we use the qdev reset function to register a reset handler which disables the timer. Note the handler is called _either_ just after init _or_ when the guest reboots. In the i6300esb case there is a small refactoring of the code so that the device's internal state is now fully restored to defaults on a reboot. Signed-off-by: Richard W.M. Jones <rjones@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-12-03savevm: Port to qdev.vmsd all devices that have qdevJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-27ib700: port to vmstateJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-27ib700: move timer to IB700StateJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-27ib700: Introduce IB700StateJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-11Unexport ticks_per_sec variable. Create get_ticks_per_sec() functionJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-27qdev: add return value to init() callbacks.Gerd Hoffmann
Sorry folks, but it has to be. One more of these invasive qdev patches. We have a serious design bug in the qdev interface: device init callbacks can't signal failure because the init() callback has no return value. This patch fixes it. We have already one case in-tree where this is needed: Try -device virtio-blk-pci (without drive= specified) and watch qemu segfault. This patch fixes it. With usb+scsi being converted to qdev we'll get more devices where the init callback can fail for various reasons. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-27qdev: convert watchdogsMarkus Armbruster
-watchdog NAME is now equivalent to -device NAME, except it treats option argument '?' specially, and supports only one watchdog. A side effect is that a device created with -watchdog may now receive a different PCI address. i6300esb is now available on any machine with a PCI bus, not just PCs. ib700 is still PC only, but that could be changed easily. The only remaining use of struct WatchdogTimerModel and watchdog_add_model() is supporting '-watchdog ?'. Should be replaced by searching device_info_list for watchdog devices when we can identify them there. Also fixes ib700 not to use vm_clock before it is initialized: in wdt_ib700_init(), called from register_watchdogs(), which runs before init_timers(). The bug made ib700_write_enable_reg() crash in qemu_del_timer(). Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-16Update to a hopefully more future proof FSF addressBlue Swirl
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-05-01Hardware watchdogRichard W.M. Jones
Here is an updated hardware watchdog patch, which should fix everything that was raised about the previous version ... Signed-off-by: Richard W.M. Jones <rjones@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>