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qemu/hw/core/trace-events

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loader: Trace loaded images This adds a trace point which prints every loaded image. This includes bios/firmware/kernel/initradmdisk/pcirom. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20190613050937.124903-1-aik@ozlabs.ru> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2019-06-13 08:09:37 +03:00
# loader.c
loader_write_rom(const char *name, uint64_t gpa, uint64_t size, bool isrom) "%s: @0x%"PRIx64" size=0x%"PRIx64" ROM=%d"
hw/core/qdev: add trace events to help with resettable transition Adds trace events to reset procedure and when updating the parent bus of a device. Signed-off-by: Damien Hedde <damien.hedde@greensocs.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Cornelia Huck <cohuck@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20200123132823.1117486-3-damien.hedde@greensocs.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-30 19:02:03 +03:00
# qdev.c
qdev_reset(void *obj, const char *objtype) "obj=%p(%s)"
qdev_reset_all(void *obj, const char *objtype) "obj=%p(%s)"
qdev_reset_tree(void *obj, const char *objtype) "obj=%p(%s)"
qbus_reset(void *obj, const char *objtype) "obj=%p(%s)"
qbus_reset_all(void *obj, const char *objtype) "obj=%p(%s)"
qbus_reset_tree(void *obj, const char *objtype) "obj=%p(%s)"
qdev_update_parent_bus(void *obj, const char *objtype, void *oldp, const char *oldptype, void *newp, const char *newptype) "obj=%p(%s) old_parent=%p(%s) new_parent=%p(%s)"
hw/core: create Resettable QOM interface This commit defines an interface allowing multi-phase reset. This aims to solve a problem of the actual single-phase reset (built in DeviceClass and BusClass): reset behavior is dependent on the order in which reset handlers are called. In particular doing external side-effect (like setting an qemu_irq) is problematic because receiving object may not be reset yet. The Resettable interface divides the reset in 3 well defined phases. To reset an object tree, all 1st phases are executed then all 2nd then all 3rd. See the comments in include/hw/resettable.h for a more complete description. The interface defines 3 phases to let the future possibility of holding an object into reset for some time. The qdev/qbus reset in DeviceClass and BusClass will be modified in following commits to use this interface. A mechanism is provided to allow executing a transitional reset handler in place of the 2nd phase which is executed in children-then-parent order inside a tree. This will allow to transition devices and buses smoothly while keeping the exact current qdev/qbus reset behavior for now. Documentation will be added in a following commit. Signed-off-by: Damien Hedde <damien.hedde@greensocs.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20200123132823.1117486-4-damien.hedde@greensocs.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-30 19:02:03 +03:00
# resettable.c
resettable_reset(void *obj, int cold) "obj=%p cold=%d"
resettable_reset_assert_begin(void *obj, int cold) "obj=%p cold=%d"
resettable_reset_assert_end(void *obj) "obj=%p"
resettable_reset_release_begin(void *obj, int cold) "obj=%p cold=%d"
resettable_reset_release_end(void *obj) "obj=%p"
hw/core/resettable: add support for changing parent Add a function resettable_change_parent() to do the required plumbing when changing the parent a of Resettable object. We need to make sure that the reset state of the object remains coherent with the reset state of the new parent. We make the 2 following hypothesis: + when an object is put in a parent under reset, the object goes in reset. + when an object is removed from a parent under reset, the object leaves reset. The added function avoids any glitch if both old and new parent are already in reset. Signed-off-by: Damien Hedde <damien.hedde@greensocs.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20200123132823.1117486-6-damien.hedde@greensocs.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-30 19:02:04 +03:00
resettable_change_parent(void *obj, void *o, unsigned oc, void *n, unsigned nc) "obj=%p from=%p(%d) to=%p(%d)"
hw/core: create Resettable QOM interface This commit defines an interface allowing multi-phase reset. This aims to solve a problem of the actual single-phase reset (built in DeviceClass and BusClass): reset behavior is dependent on the order in which reset handlers are called. In particular doing external side-effect (like setting an qemu_irq) is problematic because receiving object may not be reset yet. The Resettable interface divides the reset in 3 well defined phases. To reset an object tree, all 1st phases are executed then all 2nd then all 3rd. See the comments in include/hw/resettable.h for a more complete description. The interface defines 3 phases to let the future possibility of holding an object into reset for some time. The qdev/qbus reset in DeviceClass and BusClass will be modified in following commits to use this interface. A mechanism is provided to allow executing a transitional reset handler in place of the 2nd phase which is executed in children-then-parent order inside a tree. This will allow to transition devices and buses smoothly while keeping the exact current qdev/qbus reset behavior for now. Documentation will be added in a following commit. Signed-off-by: Damien Hedde <damien.hedde@greensocs.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20200123132823.1117486-4-damien.hedde@greensocs.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-30 19:02:03 +03:00
resettable_phase_enter_begin(void *obj, const char *objtype, unsigned count, int type) "obj=%p(%s) count=%d type=%d"
resettable_phase_enter_exec(void *obj, const char *objtype, int type, int has_method) "obj=%p(%s) type=%d method=%d"
resettable_phase_enter_end(void *obj, const char *objtype, unsigned count) "obj=%p(%s) count=%d"
resettable_phase_hold_begin(void *obj, const char *objtype, unsigned count, int type) "obj=%p(%s) count=%d type=%d"
resettable_phase_hold_exec(void *obj, const char *objtype, int has_method) "obj=%p(%s) method=%d"
resettable_phase_hold_end(void *obj, const char *objtype, unsigned count) "obj=%p(%s) count=%d"
resettable_phase_exit_begin(void *obj, const char *objtype, unsigned count, int type) "obj=%p(%s) count=%d type=%d"
resettable_phase_exit_exec(void *obj, const char *objtype, int has_method) "obj=%p(%s) method=%d"
resettable_phase_exit_end(void *obj, const char *objtype, unsigned count) "obj=%p(%s) count=%d"
resettable_transitional_function(void *obj, const char *objtype) "obj=%p(%s)"
hw/core/clock: introduce clock object This object may be used to represent a clock inside a clock tree. A clock may be connected to another clock so that it receives update, through a callback, whenever the source/parent clock is updated. Although only the root clock of a clock tree controls the values (represented as periods) of all clocks in tree, each clock holds a local state containing the current value so that it can be fetched independently. It will allows us to fullfill migration requirements by migrating each clock independently of others. This is based on the original work of Frederic Konrad. Signed-off-by: Damien Hedde <damien.hedde@greensocs.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Message-id: 20200406135251.157596-2-damien.hedde@greensocs.com [PMM: Use uint64_t rather than unsigned long long in trace events; the dtrace backend can't handle the latter] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-04-17 18:54:28 +03:00
# clock.c
clock_set_source(const char *clk, const char *src) "'%s', src='%s'"
clock_disconnect(const char *clk) "'%s'"
clock_set(const char *clk, uint64_t old, uint64_t new) "'%s', ns=%"PRIu64"->%"PRIu64
clock_propagate(const char *clk) "'%s'"
clock_update(const char *clk, const char *src, uint64_t val, int cb) "'%s', src='%s', ns=%"PRIu64", cb=%d"
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