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# Date Author Comment
c9f7383c 02/23/2011 11:42 am Paolo Bonzini

do not use qemu_icount_delta in the !use_icount case

The !use_icount code is the same for iothread and non-iothread,
except that the timeout is different. Since the timeout might as
well be infinite and is only masking bugs, use the higher value.
With this change the !use_icount code is handled equivalently...
f26e5a54 02/07/2011 09:50 pm Stefan Weil

qemu-timer: Fix compilation of new timer code for w32, w64

qemu_next_alarm_deadline() is needed by MinGW, too.

Cc: Paolo Bonzini <>
Cc: Anthony Liguori <>
Acked-by: Paolo Bonzini <>
Signed-off-by: Stefan Weil <>...
9c13246a 02/04/2011 02:33 pm Paolo Bonzini

use nanoseconds everywhere for timeout computation

Suggested by Aurelien Jarno.

Signed-off-by: Paolo Bonzini <>
Signed-off-by: Anthony Liguori <>
6ad0a1ed 02/04/2011 02:33 pm Paolo Bonzini

Correct alarm deadline computation

When the QEMU_CLOCK_HOST clock was added, computation of its
deadline was added to qemu_next_deadline, which is correct but
incomplete.

I noticed this by reading the very convoluted rules whereby
qemu_next_deadline_dyntick is computed, which miss QEMU_CLOCK_HOST...
4c3d45eb 02/04/2011 02:33 pm Paolo Bonzini

Unify alarm deadline computation

This patch shows how using the correct formula for
qemu_next_deadline_dyntick can simplify the code of
host_alarm_handler and eliminate useless duplication.

Signed-off-by: Paolo Bonzini <>
Signed-off-by: Anthony Liguori <>
225d02cd 01/23/2011 05:44 am Edgar E. Iglesias

Avoid deadlock whith iothread and icount

When using the iothread together with icount, make sure the
qemu_icount counter makes forward progress when the vcpu is
idle to avoid deadlocks.

Signed-off-by: Edgar E. Iglesias <>
c57c846a 10/23/2010 06:24 pm Blue Swirl

qemu-timer: move commonly used timer code to qemu-timer-common

Move timer init functions to a new file, qemu-timer-common.c. Make other
critical timer functions inlined to preserve performance in
qemu-timer.c, also move muldiv64() (used by the inline functions)...
0be71e32 07/06/2010 06:36 pm Alex Williamson

savevm: Add DeviceState param

When available, we'd like to be able to access the DeviceState
when registering a savevm. For buses with a get_dev_path()
function, this will allow us to create more unique savevm
id strings.

Signed-off-by: Alex Williamson <>...
29e922b6 03/29/2010 10:24 pm Blue Swirl

Compile qemu-timer only once

Arrange various declarations so that also non-CPU code can access
them, adjust users.

Move CPU specific code to cpus.c.

Signed-off-by: Blue Swirl <>
44459349 03/27/2010 03:38 pm Juergen Lock

Add a missing #include for FreeBSD hosts

Signed-off-by: Juergen Lock <>
Signed-off-by: Aurelien Jarno <>
ca5a2a4b 03/27/2010 03:05 pm Paolo Bonzini

fix race between timer firing vs. alarm_timer->pending = 0

The period for Win32 timers is very short and always the same
independent of dynticks, so it's possible that the timer fires
before qemu_run_all_timers has reset alarm_timer->pending to zero.
Reset alarm_timer->pending before rearming....
db1a4972 03/17/2010 06:16 pm Paolo Bonzini

split out qemu-timer.c

Signed-off-by: Paolo Bonzini <>
Signed-off-by: Anthony Liguori <>